MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Shimizu, Toshiyuki
Sakamoto, Yuichiro
Abstract
Provided are: a ring which is for a beverage extraction pod, enables home composting, and has favorable heat sealability to a filter; and a beverage extraction pod in which a filter is attached to said ring. This ring for a beverage extraction pod, including a filter having a volume for storing a material to be extracted, a cylindrical side wall attached to a flange surface of the pod and adapted to constitute the beverage extraction pod, and the flange surface protruding outward from the cylindrical side wall, is characterized by comprising a thermoplastic resin composition (a) that mainly contains a thermoplastic resin A and is different from a thermoplastic resin composition (b) mainly containing a thermoplastic resin B constituting the filter, wherein the thermoplastic resin A is polyalkylene dicarboxylate, and the melting point of the thermoplastic resin composition (a) is lower than the melting point of the thermoplastic resin composition (b).
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Iihama, Sho
Iiba, Kozo
Yamanaka, Kenji
Yokoyama, Tetsuya
Abstract
SB nonwoven fabric according to the present disclosure contains a plurality of hollow fibers. The coefficient of variation of the hollowness ratios of the hollow fibers is less than 10%.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D01F 6/06 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
3.
Coalescer Filter Used in Solvent Extraction Method
Mitsui Chemicals Asahi Life Materials Co., Ltd. (Japan)
Inventor
Taniguchi, Kohei
Tsuritani, Kanoko
Utsumi, Takamitsu
Miyaji, Kiyoshi
Kusakabe, Junichi
Abstract
The present disclosure provides a coalescer filter, which is used in a solvent extraction method for recovering metal contained in a secondary battery, wherein the coalescer filter includes a first filter medium and a second filter medium, an average pore diameter of the first filter medium is 0.8 μm or more and 8 μm or less, and an average pore diameter of the second filter medium is 9 μm or more and 100 μm or less.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fukunaga, Akihisa
Fujimoto, Yuya
Shiota, Eiji
Nakanishi, Yasuo
Abstract
The present invention provides a nonwoven fabric that is biodegradable and has a good pleat retaining property, and an application thereof. The present invention relates to a nonwoven fabric comprising at least one fiber layer (I) which contains a polylactic acid polymer and which has an average fiber diameter of 10-30 m, wherein in polarized Raman spectroscopy of the fiber layer (I), the value I// / I, which is the ratio of the peak intensity I// at 872 cm-1 of a Raman spectrum measured with polarized light parallel to a fiber axis, to the peak intensity I at 872 cm-1 of a Raman spectrum measured with polarized light perpendicular to the fiber axis, is not more than 1.80. The present invention also relates to a filter material comprising the nonwoven fabric, and a filter for foods, an air filter, and a mask which each comprise the filter material.
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 27/02 - Layered products essentially comprising synthetic resin in the form of fibres or filaments
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
Mitsui Chemicals Asahi Life Materials Co., Ltd. (Japan)
Inventor
Fujimoto, Yuya
Sakamoto, Yuichiro
Kusakabe, Junichi
Fukunaga, Akihisa
Shiota, Eiji
Abstract
The present invention provides a biodegradable nonwoven fabric which has biodegradability, while having extremely excellent texture, or having good formability and being suppressed in fluffing in an embossed part during forming. One embodiment of the present invention provides: a biodegradable nonwoven fabric which is configured from fibers that contain a biodegradable thermoplastic resin, and is characterized in that the shear viscosity thereof is more than 0 Pa·s but not more than −41.4×ln(x)+500.84 Pa·s at a shear rate x (x is from 20/s to 10,000/s) at 230° C., or is characterized in that the biodegradable nonwoven fabric has an embossed part and a non-embossed part, and the embossed part thickness index that is obtained by dividing the thickness of the embossed part by the square root of weight is 2.75 to 4.36 mm/(g/m2)0.5; or a food filter such as a coffee filter or a filter for tea bags, a mask, a diaper, an agricultural material or a lightweight packaging material, each of which comprises this biodegradable nonwoven fabric.
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
7.
DUST-PROOFING MATERIAL, PROTECTIVE CLOTHING AND METHOD FOR PRODUCING DUST-PROOFING MATERIAL
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Yoshida, Mariko
Kitayama, Hideki
Yamagishi, Naoki
Abstract
The disclosed dust-proofing material is provided with a melt-blown non-woven fabric layer which has been configured as an electret, and a spunbonded non-woven fabric layer which is layered on and secured to both main surfaces of the melt-blown non-woven fabric layer. The melt-blown non-woven fabric layer contains a melt-blown non-woven fabric. The spunbonded non-woven fabric layer contains a spunbonded non-woven fabric. The basis weight of the dust-proofing material is greater than or equal to 15gsm and less than 55gsm. The ratio of the basis weight of the melt-blown non-woven fabric layer to the basis weight of the dust-proofing material is greater than or equal to 3% and less than 10%.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
A41D 13/00 - Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
A41D 31/00 - Materials specially adapted for outerwear
A41D 31/04 - Materials specially adapted for outerwear characterised by special function or use
A41D 31/14 - Air permeable, i.e. capable of being penetrated by gases
A41D 31/24 - Resistant to mechanical stress, e.g. pierce-proof
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fujimoto, Yuya
Nakanishi, Yasuo
Abstract
Provided is a biodegradable nonwoven fabric that is biodegradable and is extremely excellent in elasticity. This biodegradable nonwoven fabric is configured from fibers including a biodegradable thermoplastic resin, and is characterized in that a SS curve obtained by stretching in a 30°C environment does not have a yield point in the displacement 0-40 mm interval.
A61F 7/03 - Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
9.
SOUND-ABSORBING MATERIAL AND SOUND-ABSORBING PANEL
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Obata Noritoshi
Ichikawa Taro
Nakamura Kenichi
Sekioka Yusuke
Yoshizawa Hidenori
Abstract
The present invention provides a sound-absorbing material and a sound-absorbing panel for which carbon dioxide emissions during production etc. are low and which have high acoustic absorptivity. A sound-absorbing material according to the present invention comprises a stuffing and a covering material that envelops the stuffing, wherein: the stuffing includes two or more types of thermoplastic resin fibers; the stuffing is a nonwoven fabric including thermoplastic resin hollow fibers; the thermoplastic resin fibers have differing fiber diameters; the total surface area of the outer diameter of the stuffing fibers per unit area of the stuffing is 150-270 m2/m2and preferably 200-270 m2/m2; and the covering material is a nonwoven fabric including thermoplastic resin fibers. The sound-absorbing panel is provided with a frame that accommodates the sound-absorbing material.
G10K 11/168 - Plural layers of different materials, e.g. sandwiches
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D04H 5/00 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Saita, Shohei
Ichikawa, Taiichirou
Takaku, Shouichi
Abstract
This nonwoven fabric laminate comprises: an elastic nonwoven fabric; and an extensible spun-bonded nonwoven fabric disposed on both surfaces of the elastic nonwoven fabric. A surface coefficient represented by formula (1) is 38 or greater. (1): Surface coefficient = [(average fiber diameter of fiber included in the elastic nonwoven fabric/average fiber diameter of fiber included in the extensible spun-bonded nonwoven fabric)/texture coefficient] × 104
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
A61F 13/51 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the outer layers of the pads
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
11.
Solid Electrolyte Support and Solid Electrolyte Sheet Including Same
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Kusakabe, Junichi
Komatsu, Takashi
Shiota, Eiji
Sakuraba, Maiko
Fukunaga, Akihisa
Abstract
Provided are a solid electrolyte support suitable for obtaining a solid electrolyte sheet having low electrical resistance, and a solid electrolyte sheet including the same. The present invention relates to: a solid electrolyte support that contains a non-woven fabric and is characterized in that the elastic recovery rate of the support is 30-99%; and a solid electrolyte sheet that includes the solid electrolyte support and a solid electrolyte, and has low electrical resistance.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Taniguchi, Kohei
Tsuritani, Kanoko
Kusakabe, Junichi
Abstract
Provided are: a water/organic solvent separation device that, from a liquid mixture of water/organic solvent that has a high ratio of dispersed phase, can separate water and an organic solvent with high efficiency; a water/organic solvent separation method using the water/organic solvent separation device; a solvent extraction device; and a solvent extraction method using the solvent extraction device. This invention relates to a water/organic solvent separation device, characterized by comprising a coalescing filter that is supplied with a liquid mixture containing water and an organic solvent and that performs separation processing on the liquid mixture, and a housing that is supplied with the liquid mixture subjected to separation processing by the coalescing filter, and characterized in that the coalescing filter is disposed within the housing, and the housing has a structure or a mechanism that prevents contact between an interface of the water and the organic solvent and the coalescing filter. This invention also relates to: a water/organic solvent separation method using the water/organic solvent separation device; a solvent extraction device; and a solvent extraction method using the solvent extraction device.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Saita, Shohei
Ichikawa, Taiichirou
Kanaya, Hirotaka
Abstract
Provided is a spun-bonded nonwoven fabric including fibers formed of a resin composition that contains: a propylene polymer (A); and a polymer (B) which is at least one selected from the group consisting of polyolefins, other than the propylene polymer (A), and polyesters. The fibers have a sea-island structure. The fibers include fibers in which a ratio of island phases having a diameter of less than 0.32 μm among those island phases at a cross-section perpendicular to the axial direction of the fibers is 60% or higher on a number basis. In the spun-bonded nonwoven fabric, a ratio (SMB/SCB) of the tensile strength (SMD) in a machine flow direction (MD) with respect to the tensile strength (SCD)) in a direction (CD) perpendicular to the machine flow direction (MD) is from 2.0 to 5.1.
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
14.
HYDROENTANGLED NONWOVEN FABRIC, FACE MASK, AND METHOD FOR PRODUCING HYDROENTANGLED NONWOVEN FABRIC
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
UNITIKA LTD. (Japan)
Inventor
Takaku, Shouichi
Sasaki, Kaori
Ichikawa, Taro
Fushimi, Mayu
Matsunaga, Atsushi
Mori, Shotaro
Abstract
A hydroentangled nonwoven fabric of the present disclosure comprises spunbond nonwoven fabric and a fibrous web bonded to at least one main surface of the spunbond nonwoven fabric by a hydroentangling method. The fibrous web is composed of natural fibers or regenerated cellulose fibers. The hydroentangled nonwoven fabric of the present disclosure satisfies the following (a) or (b). (a) The spunbond nonwoven fabric has a plurality of embossed parts in which some of the plurality of fibers included in the spunbond nonwoven fabric are fused, and the plurality of embossed parts are arranged in an irregular pattern. (b) The spunbond nonwoven fabric does not have the embossed parts.
D04H 5/03 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
A45D 44/22 - Face shaping devices, e.g. chin strapsWrinkle removers, e.g. stretching the skin
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
15.
Nonwoven fabric, use of same, and method for producing nonwoven fabric
Mitsui Chemicals Asahi Life Materials Co., Ltd. (Japan)
Inventor
Hirata, Daiki
Shibata, Hidesato
Inokuma, Nobuhiro
Shiota, Eiji
Abstract
The present invention provides: a nonwoven fabric which gives a sufficiently soft touch when touched by a human hand, while being suppressed in slipperiness between nonwoven fabrics during the production process of a product such as a sanitary material; and a method for producing a nonwoven fabric. One embodiment of the present invention provides a nonwoven fabric which is formed of fibers containing a thermoplastic resin, wherein: the average single fiber fineness of the fibers is 0.7 dtex to 4.0 dtex; the fibers contain 0.01% by mass to 1.5% by mass of a fatty acid amide relative to the total mass of the fibers; and the coverage of the surfaces of the fibers by the fatty acid amide is from 20% to 90%.
A61F 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
A61F 13/514 - Backsheet, i.e. the impermeable cover or layer furthest from the skin
16.
Biodegradable Non-Woven Fabric and Method for Producing Molded Body
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fujimoto, Yuya
Komatsu, Takashi
Shiota, Eiji
Abstract
The present invention provides: a biodegradable non-woven fabric that is biodegradable, is excellent in terms of uniform moldability and shapability (obtaining, in a shorter time, a neat molded body with no tearing, nap, or stretching irregularities), and which has favorable dimensional stability after molding; and a method for producing a molded body. A biodegradable non-woven fabric according to the present invention comprises fibers containing a biodegradable thermoplastic resin, and is characterized in that: the basis weight is 10-450 g/m2; the difference between the melting point and the crystallization onset temperature of the non-woven fabric is not less than 91° C.; and the cold crystal enthalpy heat quantity ΔH of the non-woven fabric is not less than 1.0 J/g.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Sekioka, Yusuke
Iihama, Sho
Inoue, Fumihito
Abstract
Provided is a nonwoven fabric laminate comprising: a nonwoven fabric layer A containing composite fibers that include a region A containing a propylene/α-olefin random copolymer and include a region B containing an ethylene-based polymer, the composite fibers being of a side-by-side type or an eccentric core-sheath type, the proportion of the region A to the region B on a mass basis being 70:30 to 10:90 (region A : region B), and the density of the region B being 900 kg/m3to 945 kg/m3; and a nonwoven fabric layer B containing fibers that include a polymer (I), which is a random copolymer of propylene and at least one selected from ethylene and 4-20C α-olefins.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
18.
FIBER NONWOVEN FABRIC, FILTER, AND METHOD OF FIBER NONWOVEN FABRIC
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Iiba, Kozo
Abstract
A fiber nonwoven fabric includes a fiber containing an aromatic polyether ketone, and a coefficient of variation in a fiber diameter of the fiber is 100% or less.
B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
Woven fabrics, other than edging ribbons for tatami mats;
cloth for tatami mat edging ribbons; knitted fabrics;
non-woven textile fabrics; felt; oilcloth; gummed waterproof
cloth; vinyl coated cloth; rubberized cloth; filtering
materials of textile; woven textile goods for personal use;
mosquito nets; bedsheets; futon quilts; quilt covers for
futon; futon ticks [unstuffed futon]; pillowcases [pillow
slips]; blankets; table napkins of textile; dish towels for
drying; shower curtains; banners and flags, not of paper;
toilet seat covers of textile; seat covers of textile; wall
hangings of textile; curtains of textile or plastic; table
cloths, not of paper; draperies [thick drop curtains];
shrouds [sheets for wrapping corpses]; shrouds for dressing
a corpse for funeral [kyokatabira kimono]; black-and-white
striped curtains; red-and-white striped curtains;
self-adhesive labels of cloth; billiard cloth; indoor and
outdoor curtains; sleeping bags; non-woven fabrics in the
form of sheets for use in manufacture of horticultural
fabrics for tunnel farming, greenhouse cultivation and
seedling cultivation; handkerchiefs; Japanese general
wrapping cloth [furoshiki]; linings [textile]; towels of
textile; bath linen, except clothing; unfitted fabric
furniture covers; furniture coverings of textile; woven
fabrics imitating leather.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Yamada, Yusuke
Okamura, Chie
Matsumoto, Takuya
Obi, Rumina
Kato, Kazufumi
Abstract
The present disclosure provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m2, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120° C., and having an MD-direction dimensional change rate of ±4% or less at 80-140° C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100° C.
A47J 31/02 - Coffee-making machines with removable extraction cups, to be placed on top of drinking-vessels, e.g. cafe filtre
B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
D04H 1/558 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Kusakabe, Junichi
Sakuraba, Maiko
Komatsu, Takashi
Shiota, Eiji
Abstract
The present invention provides a nonwoven fabric separator which has excellent ion permeability. The present invention provides a nonwoven fabric separator which contains a polyolefin-based nonwoven fabric, wherein the permeability parameters expressed by formulae (1) and (2) are satisfied. (1): |Pmax|≤38.5 dB (2): Tmax≤11.5 minutes (In the formulae, both Pmax and Tmax are parameters each indicating a permeability, and Pmax shows the attenuation degree of ultrasound transmission in a state where the nonwoven fabric separator is filled with water, while Tmax shows the time until the nonwoven fabric separator is filled with water.)
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fushimi, Mayu
Ichikawa, Taro
Abstract
Provided is a composite nonwoven fabric including: a silk region that contains crimped silk fibers as a main component; and a synthetic fiber nonwoven fabric region that contains polyolefin resin-containing synthetic fibers as a main component.
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
D04H 1/4266 - Natural fibres not provided for in group
D04H 1/498 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
23.
COALESCER FILTER USED IN SOLVENT EXTRACTION METHOD
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Taniguchi, Kohei
Tsuritani, Kanoko
Utsumi, Takamitsu
Miyaji, Kiyoshi
Kusakabe, Junichi
Abstract
The present disclosure provides a coalescer filter, which is used in a solvent extraction method for recovering metal contained in a secondary battery, wherein the coalescer filter includes a first filter medium and a second filter medium, an average pore diameter of the first filter medium is 0.8 ?m or more and 8 ?m or less, and an average pore diameter of the second filter medium is 9 ?m or more and 100 ?m or less.
Woven fabrics, other than edging ribbons for tatami mats; cloth for tatami mat edging ribbons; knitted fabrics; non-woven textile fabrics; felt cloth; oilcloth; gummed waterproof cloth; vinyl coated cloth; rubberized cloth; filtering materials of textile in the nature of non- woven fabrics, gauze fabric, and synthetic fiber fabrics; woven textile goods for personal use in the nature of textile towels; mosquito nets; bedsheets; futon quilts; quilt covers for futon; futon ticks, namely, unstuffed futon covers not of paper; pillowcases being pillow slips; blankets in the nature of bed blankets and cotton blankets; table napkins of textile; dish towels for drying; shower curtains; banners and flags, not of paper, namely, banners and flags of textile; unfitted toilet seat covers of textile; unfitted seat covers of textile; wall hangings of textile; curtains of textile or plastic; table cloths, not of paper; draperies being thick drop curtains; shrouds being sheets for wrapping corpses; shrouds for dressing a corpse for funeral in the nature of kyokatabira kimono being shrouds; black-and-white striped curtains; red-and-white striped curtains; self-adhesive labels of cloth; billiard cloth; indoor and outdoor curtains; sleeping bags; non-woven fabrics in the form of sheets for use in manufacture of horticultural fabrics for tunnel farming, greenhouse cultivation and seedling cultivation; handkerchiefs in the nature of cloth handkerchiefs and textile handkerchiefs; Japanese general wrapping cloth (furoshiki); textile used as lining for clothing; towels of textile; bath linen, except clothing; unfitted fabric furniture covers; unfitted furniture coverings of textile; woven fabrics imitating leather
25.
Nonwoven Fabric and Composite Sound-Absorbing Material Using Same as Skin Material
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Yamamuro, Shinya
Obi, Rumina
Kato, Kazufumi
Tanaka, Tomoya
Okamura, Chie
Isono, Yasushi
Saito, Junki
Abstract
Provided is a nonwoven fabric and a laminated nonwoven fabric suitable as the skin material of a composite sound-absorbing material. The nonwoven fabric and laminated nonwoven fabric are easily formable, thin, and lightweight and excel in form stability, and can nevertheless be controlled within a given range of aeration after being formed into shape. A nonwoven fabric having a laminate structure in which at least one ultra-fine fiber layer (M) having an average fiber diameter of 0.3 to 7 μm (inclusive) and a basis weight of 1 g/m2 to 40 g/m2 (inclusive) and at least one continuous filament layer (S) having an average fiber diameter of 10 to 30 μm (inclusive) are integrated together by partial thermocompression bonding.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure
27.
NONWOVEN FABRIC LAYERED BODY, COVER SHEET, AND ABSORBENT ARTICLE
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Iihama, Sho
Shimada, Koichi
Abstract
A nonwoven fabric layered body includes, in the following order, a crimped surface layer including a crimped spunbond nonwoven fabric including a crimped fiber, a crimped intermediate layer including a crimped spunbond nonwoven fabric including a crimped fiber, and a non-crimped surface layer including a non-crimped spunbond nonwoven fabric including a non-crimped fiber, a linear mass density of the crimped fiber in the crimped surface layer is from 1.4 denier to 1.6 denier, and a linear mass density of the crimped fiber in the crimped intermediate layer is less than 1.4 denier.
D04H 3/016 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fujimoto, Yuya
Sakamoto, Yuichiro
Kusakabe, Junichi
Fukunaga, Akihisa
Shiota, Eiji
Abstract
The present invention provides a biodegradable nonwoven fabric which has biodegradability, while having extremely excellent texture, or having good formability and being suppressed in fluffing in an embossed part during forming. One embodiment of the present invention provides: a biodegradable nonwoven fabric which is configured from fibers that contain a biodegradable thermoplastic resin, and is characterized in that the shear viscosity thereof is more than 0 Pa?s but not more than -41.4 ? ln(x) + 500.84 Pa?s at a shear rate x (x is from 20/s to 10,000/s) at 230?C, or is characterized in that the biodegradable nonwoven fabric has an embossed part and a non-embossed part, and the embossed part thickness index that is obtained by dividing the thickness of the embossed part by the square root of weight is 2.75 to 4.36 mm/(g/m2)0.5; or a food filter such as a coffee filter or a filter for tea bags, a mask, a diaper, an agricultural material or a lightweight packaging material, each of which comprises this biodegradable nonwoven fabric.
D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
30.
METHOD AND APPARATUS FOR MAKING NONWOVEN FABRIC OF CRIMPED SYNTHETIC FIBERS
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD (Japan)
REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK (Germany)
Inventor
Bohl, Patrick
Geus, Hans-Georg
Sommer, Sebastian
Wagner, Tobias
Zeisho, Kazuya
Abstract
A method for producing a nonwoven fabric made of crimped synthetic fibers, wherein the synthetic fibers are spun and are deposited on a conveyor as a nonwoven web. The deposited nonwoven web is pre-bonded by means of at least one first hot-air bonding device, wherein a main suction air is sucked from below through the conveyor in the area of fiber deposition. A first suction air is sucked from below through the conveyor in the region of the first hot-air bonding device. The air speed of the main suction air is greater than the air speed of the first suction air.
D01D 5/098 - Melt-spinning methods with simultaneous stretching
D01D 5/092 - Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D01D 13/00 - Complete machines for producing man-made threads
31.
BIODEGRADABLE NON-WOVEN FABRIC AND METHOD FOR PRODUCING MOLDED BODY
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fujimoto, Yuya
Komatsu, Takashi
Shiota, Eiji
Abstract
The present invention provides: a biodegradable non-woven fabric that is biodegradable, is excellent in terms of uniform moldability and shapability (obtaining, in a shorter time, a neat molded body with no tearing, nap, or stretching irregularities), and which has favorable dimensional stability after molding; and a method for producing a molded body. A biodegradable non-woven fabric according to the present invention comprises fibers containing a biodegradable thermoplastic resin, and is characterized in that: the basis weight is 10-450 g/m2 ; the difference between the melting point and the crystallization onset temperature of the non-woven fabric is not less than 91?C; and the cold crystal enthalpy heat quantity ?H of the non-woven fabric is not less than 1.0 J/g.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Hashimoto, Takashi
Iiba, Kozo
Abstract
A melt-blown nonwoven fabric includes polybutylene terephthalate, in which an intrinsic viscosity of the melt-blown nonwoven fabric is 0.45 dl/g or more and 0.60 dl/g or less.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Sekioka, Yusuke
Saita, Shohei
Ota, Kosuke
Shimada, Koichi
Ichikawa, Taiichiro
Abstract
A nonwoven fabric layered body includes a first nonwoven fabric layer including a crimped fiber (A), which is a fiber made of a thermoplastic polymer and which has an average crimp diameter of 800 μm or less; and a hydrophilic agent.
D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
D04H 1/64 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
34.
Nonwoven fabric for sterilization packaging material
Mitsui Chemicals Asahi Life Materials Co., Ltd. (Japan)
Inventor
Kusakabe, Junichi
Sasaki, Yusuke
Mori, Masaaki
Komatsu, Takashi
Abstract
The present disclosure provides: a non-woven fabric for a sterilization packaging material, the non-woven fabric being capable of being compatible with all sterilization treatment methods and maintaining a sterile state in the interior without breaking even in a variety of environments in which the non-woven fabric can be assumed to be used as a sterilization packaging material; and a non-woven fabric for a sterilization packaging material, the non-woven fabric achieving both easy-peel properties that enable easy handling without breakage and barrier properties for retaining the sterile state in the interior.
B32B 5/22 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Ichikawa, Taiichiro
Matsubara, Akio
Shimada, Koichi
Motomura, Shigeyuki
Abstract
3, and at least one polymer selected from the group consisting of a polymer represented in (I) and a polymer represented in (II). In the spunbonded non-woven fabric, the fiber includes a sea-island structure, and the percentage of an island phase having a diameter of from 0.12 μm to less than 0.63 μm with respect to an island phase in a cross section orthogonal to the axis direction of the fiber on a number basis is 30% or more. (I) represents a random copolymer of propylene and at least one selected from ethylene or an α-olefin having a carbon number of from 4 to 20. (II) represents a propylene homopolymer with a melting point of less than 120° C.
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
36.
Nonwoven fabric, layered nonwoven fabric comprising the nonwoven fabric, and composite sound-absorbing material using them as skin material
Mitsui Chemicals Asahi Life Materials Co., Ltd. (Japan)
Inventor
Yamamuro, Shinya
Okamura, Chie
Obi, Rumina
Shiota, Eiji
Kato, Kazufumi
Nakanishi, Yasuo
Abstract
Provided are a non-woven cloth and a layered non-woven cloth that are preferred as a skin material for a composite sound-absorbing material, which has excellent moldability and exceptional shape stability, and with which it is possible to achieve an adequate sound-absorption effect even in thin low-weight regions.
D04H 1/54 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
G10K 11/168 - Plural layers of different materials, e.g. sandwiches
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Takaku, Shouichi
Iihama, Sho
Shimada, Koichi
Motomura, Shigeyuki
Abstract
A multilayer nonwoven fabric includes: a surface layer; an intermediate layer; and a back layer; in this order, wherein the surface layer and the back layer are each independently a spunbonded nonwoven layer comprising a long fiber of a thermoplastic polyurethane elastomer (A) and a long fiber of a thermoplastic resin (B), the intermediate layer is a spunbonded layer comprising 50% by mass or more of a long fiber of a thermoplastic polyurethane elastomer (a), and a storage elastic modulus of the thermoplastic polyurethane elastomer (A) and a storage elastic modulus of the thermoplastic polyurethane elastomer (a) are each independently 25.0 MPa or less.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Takaku, Shouichi
Shimada, Koichi
Motomura, Shigeyuki
Abstract
A multilayer nonwoven fabric includes an elastic nonwoven fabric comprising an α-olefin copolymer having a ratio of a storage elastic modulus E40 at 40° C. and a storage elastic modulus E23 at 23° C. (E40/E23) is 37% or more, and an extensible spunbonded nonwoven fabric disposed on at least one side of the elastic nonwoven fabric.
D04H 1/724 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
Woven fabrics; textile used as lining for clothing; knitted
fabrics; elastic woven materials, namely, elastic fabrics
for clothing; jersey fabrics; felt and non-woven textile
fabrics; towels of textile; textile handkerchiefs; bath
linen, except clothing; bed linen; bed sheets; pillow slips;
bed blankets; cotton blankets; filtering materials of
textile; unfitted seat coverings of textile; wall hangings
of textile; fabric curtains; table cloths, not of paper;
draperies, namely, thick drop curtains; unfitted furniture
coverings of textile fabric.
41.
SPUNBONDED NONWOVEN FABRIC, HYGIENE MATERIAL, AND METHOD FOR PRODUCING SPUNBONDED NONWOVEN FABRIC
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Ichikawa, Taiichiro
Shimada, Koichi
Motomura, Shigeyuki
Matsubara, Akio
Abstract
Provided is a spunbonded nonwoven fabric, including a fiber formed of a composition containing: a propylene homopolymer having a melting point of 140° C. or higher; a polyethylene; and at least one polymer selected from the group consisting of a polymer shown in (I), and a polymer shown in (II), in which the fiber has a sea-island structure, and an average length of an island phase is from 1 μm to 500 μm in a cross section taken along a major axis direction of the fiber, and a method for producing thereof, and in which the polymer shown in (I) is a random copolymer of a propylene with α-olefin having specified number of carbon atoms and the polymer shown in (II) is a propylene homopolymer having a melting point of less than 120° C. satisfying the specified properties.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
A61L 15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bondsDerivatives thereof
A61F 13/51 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the outer layers of the pads
Woven fabrics; textile used as lining for clothing; knitted fabrics; elastic woven materials, namely, elastic fabrics for clothing; jersey fabrics; felt and non-woven textile fabrics; towels of textile; textile handkerchiefs; bath linen, except clothing; bed linen; bed sheets; pillow slips being pillow cases; bed blankets; cotton blankets; filtering materials of textile, namely, synthetic fiber fabrics for use in filtering liquids and gases; unfitted seat coverings of textile; wall hangings of textile; fabric curtains; table cloths, not of paper; draperies, namely, thick drop curtains; unfitted furniture coverings of textile fabric
43.
Method for producing a biodegradable nonwoven fabric
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Yamada, Yusuke
Okamura, Chie
Matsumoto, Takuya
Obi, Rumina
Kato, Kazufumi
Abstract
2, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120° C., and having an MD-direction dimensional change rate of ±4% or less at 80-140° C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100° C.
D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D06C 3/00 - Stretching, tentering or spreading textile fabricsProducing elasticity in textile fabrics
D06C 3/02 - Stretching, tentering or spreading textile fabricsProducing elasticity in textile fabrics by endless chain or like apparatus
A47J 31/02 - Coffee-making machines with removable extraction cups, to be placed on top of drinking-vessels, e.g. cafe filtre
B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
D04H 1/558 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
Woven fabrics; textile used as lining for clothing; knitted
fabrics; elastic woven materials, namely, elastic fabrics
for clothing; jersey fabrics; felt and non-woven textile
fabrics; towels of textile; textile handkerchiefs; bath
linen, except clothing; bed linen; bed sheets; pillow slips;
bed blankets; cotton blankets; filtering materials of
textile; unfitted seat coverings of textile; wall hangings
of textile; fabric curtains; table cloths, not of paper;
draperies, namely, thick drop curtains; unfitted furniture
coverings of textile fabric.
(1) Woven fabrics; textile used as lining for clothing; knitted fabrics; elastic woven materials, namely, elastic fabrics for clothing; jersey fabrics; felt and non-woven textile fabrics; towels of textile; textile handkerchiefs; bath linen, except clothing; bed linen; bed sheets; pillow slips; bed blankets; cotton blankets; filtering materials of textile; unfitted seat coverings of textile; wall hangings of textile; fabric curtains; table cloths, not of paper; draperies, namely, thick drop curtains; unfitted furniture coverings of textile fabric.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Kunimoto, Naosuke
Suzuki, Kenichi
Kojima, Kouya
Hasegawa, Akira
Tsuchiya, Yasufumi
Kamada, Jun
Yamasaki, Satoshi
Kuwamura, Goro
Hasegawa, Daisuke
Abstract
A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.
A61K 31/23 - Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin of acids having a carboxyl group bound to a chain of seven or more carbon atoms
A61P 17/02 - Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
A61K 9/00 - Medicinal preparations characterised by special physical form
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Takaku, Shouichi
Suzuki, Kenichi
Kunimoto, Naosuke
Kawada, Atsushi
Tanaka, Takayuki
Abstract
Apparatus for manufacturing a non-woven fabric includes a diffusing shaft, which includes a first shaft portion in a defined location and provided with a slit-shaped air guide, wherein filaments are supplied together with air from an inlet side of the air guide to an outlet side of the air guide; a second shaft portion in a defined location, having an inlet side that is communicated with an outlet side of the first shaft portion and an outlet side that is disposed to face a filament collecting unit, wherein an opening width along a machine direction of the inlet side of the second shaft portion is larger than an opening width along a machine direction of the first shaft portion; and a stepped portion provided at a connecting portion between the outlet side of the first shaft portion and the inlet side of the second shaft portion and connecting the same.
D04H 1/736 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D01D 5/098 - Melt-spinning methods with simultaneous stretching
D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
D01D 5/092 - Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
D04H 1/732 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Kusakabe, Junichi
Mori, Masaaki
Amano, Seiichi
Kato, Kazufumi
Abstract
The present invention provides a novel packaging material for sterilization which has processing suitability as a packaging material, is compatible with all sterilization processing methods such as those performed under high-temperature conditions, has small variation in shapes and dimensions, and is capable of maintaining an internal sterilized condition. This packaging material for sterilization is configured from at least two layers of laminated non-woven fabrics comprising a non-woven fabric layer (I) formed of continuous long fibers having an average fiber diameter of 5-30 μm and a non-woven fabric layer (II) formed of ultra-fine fibers having an average fiber diameter of 0.1-4 μm.
B65D 65/40 - Applications of laminates for particular packaging purposes
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
A61B 50/30 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Kunimoto, Naosuke
Abstract
3. The fabric can exhibit excellent initial hydrophilicity, long-lasting hydrophilicity, liquid dispersibility, liquid transpiration property, moisture permeability, breathability, softness, resistance to fluff, stretchability and touch, and low stickiness, and is suitable for sheets constituting absorbent articles such as sanitary napkins, panty liners, incontinence pads, and disposable diapers. A production method is also provided.
D01F 6/06 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D01D 5/098 - Melt-spinning methods with simultaneous stretching
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Yamada, Yusuke
Okamura, Chie
Matsumoto, Takuya
Obi, Rumina
Kato, Kazufumi
Abstract
The purpose of the present invention is to provide a nonwoven fabric which is biodegradable, and also has high elongation, high heat stability, and excellent formability. The present invention provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m2, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120°C, and having an MD-direction dimensional change rate of ±4% or less at 80-140°C as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100°C.
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Shimada, Koichi
Suzuki, Kenichi
Takaku, Shouichi
Abstract
A multilayer nonwoven fabric includes: an elastic nonwoven fabric containing a specific low crystalline polypropylene; and a mixed fiber spunbonded nonwoven fabric disposed on at least one surface of the elastic nonwoven fabric, wherein the mixed fiber spunbonded nonwoven fabric contains a long fiber of a thermoplastic elastomer (A) and a long fiber of a thermoplastic elastomer (B) other than the thermoplastic elastomer (A), in a ratio of 10 to 90% by mass:90 to 10% by mass ((A):(B), with the proviso that (A)+(B)=100% by mass).
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/04 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a layer being specifically extensible by reason of its structure or arrangement
D01F 6/06 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Inokuma, Nobuhiro
Matsuo, Norihisa
Yoshida, Minoru
Abstract
An object of the present invention is to provide a nonwoven fabric having high tensile strength and high tear strength. The laminate nonwoven fabric of the present invention is a laminated nonwoven fabric obtained by thermally press-contacting a thermoplastic continuous fiber layer as an outer layer with both surfaces of an interlayer, wherein the ratio (F1/F2) between the average oblateness (F1) of the thermoplastic continuous fiber present on the surface side and the average oblateness (F2) of the thermoplastic continuous fiber present on the inner side is 1.20 or more.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Takaku, Shouichi
Suzuki, Kenichi
Yokoyama, Tetsuya
Shimada, Koichi
Abstract
A nonwoven fabric layered body, including: an elastic nonwoven fabric; and an extensible spunbond nonwoven fabric that is disposed on at least one surface side of the elastic nonwoven fabric and that has a degree of maximum load elongation of 50% or more in at least one direction, the nonwoven fabric layered body satisfying the following (1) and (2). (1) The elastic nonwoven fabric includes a resin composition containing a specific low-crystalline polypropylene, and an α-olefin copolymer A containing an ethylene-derived constitutional unit and a propylene-derived constitutional unit, and having a melting point of 100° C. or more and a crystallization degree of 15% or less. (2) The resin composition contains from 5 parts by mass to 50 parts by mass of the α-olefin copolymer A with respect to 100 parts by mass of the resin composition.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
A61F 13/47 - Sanitary towels, incontinence pads or napkins
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
56.
Multilayer nonwoven fabric for foam molding, method of producing multilayer nonwoven fabric for foam molding, urethane-foam molded complex using multilayer nonwoven fabric, vehicle seat, and chair
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
D04H 1/46 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances
A47C 27/14 - Spring, stuffed or fluid mattresses specially adapted for chairs, beds or sofas with foamed material inlays
A47C 7/00 - Parts, details, or accessories of chairs or stools
D04H 1/498 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/08 - Interconnection of layers by mechanical means
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Ichikawa, Taro
Kobayashi, Yoshinori
Yoshizawa, Hidenori
Abstract
Multilayer nonwoven fabrics for foam molding that have excellent resistance to the separation of layers, have reinforcing effects and urethane leakage prevention performance, and are producible without the occurrence of fiber dust on the surface. In the multilayer nonwoven fabric for foam molding, a reinforcing layer is stacked on at least one side of a dense layer, the dense layer includes a meltblown nonwoven fabric layer (A) and spunbonded nonwoven fabric layers (B) that are stacked on both sides of the layer (A), and the meltblown nonwoven fabric layer (A) and the spunbonded nonwoven fabric layers (B) are partially thermocompression bonded with each other.
B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
D04H 5/02 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
D04H 5/06 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B29C 44/14 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
D04H 3/105 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by needling
D04H 1/498 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
B29C 65/00 - Joining of preformed partsApparatus therefor
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Matsubara, Akio
Kajiyama, Shingo
Suzuki, Kenichi
Shiode, Hirohisa
Kubo, Takayuki
Abstract
It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 μm, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.
D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
D01D 5/098 - Melt-spinning methods with simultaneous stretching
D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material
D04H 1/54 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
59.
Separator and method of preparing the same, and lithium ion secondary battery
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Yamada, Yusuke
Uozumi, Makoto
Misao, Takashi
Nakamura, Mitsutaka
Sasayama, Masaaki
Kato, Kazufumi
Abstract
An object of the present invention is to provide a separator maintaining high rate characteristics and enabling suppression of short circuit. The object is achieved by a separator comprising a substrate having an inner surface and an outer surface, and inorganic particles presented on the outer surface and the inner surface of the substrate, wherein the substrate has a porosity of 55% or more and a mean flow pore size of 30 μm or less, the inorganic particles have an average particle size of 1.0 to 4.0 μm, and the inorganic particles comprises 40% by volume or less of particles having a particle size of 1.0 μm or less and 30 to 75% by volume of particles having a particle size of 2.0 μm or more.
16 - Paper, cardboard and goods made from these materials
17 - Rubber and plastic; packing and insulating materials
24 - Textiles and textile goods
Goods & Services
Paper for industrial uses; filter paper; filtering materials [paper]; hygienic paper; napkins of paper for removing make-up; paper coffee filters; food wrapping plastic film for household use. Plastic fibers, not for textile use; rubber threads, not for textile use; chemical fiber yarns and threads, not for textile use; fabrics made of plastic fibers, not for textile use; insulating gloves; plastic substances, semi-processed; elastic threads and yarns, not for textile use; adhesive plastic tapes for industrial use; adhesive plastic tapes for use in the manufacture of clothing; plastic films, sheets, tapes and threads expressing adhesive character by heat for industrial use; cellulose sheets used for further manufacturing, other than for wrapping; synthetic fibers for use in the manufacture of tire cord and air bags; synthetic fiber thread and yarn for use in the manufacture of tire cord and air bags. Woven fabrics; textile used as lining for clothing; knitted fabrics; elastic woven materials, namely, elastic fabrics for clothing; jersey fabrics; felt and non-woven textile fabrics; towels of textile; handkerchiefs; bath linen, except clothing; linen (bed-); bedsheets; pillow slips; bed blankets; cotton blankets; filtering materials of textile; coverings (furniture-) of textile; wall hangings of textile; curtains; table cloths [not of paper], draperies [thick drop curtains].
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Fujii, Hideaki
Tadokoro, Yoshiyuki
Tezuka, Satoru
Miyaji, Kiyoshi
Ogawa, Tatsuya
Tanaka, Saori
Abstract
Provided is a filter material which can enhance the particle holding capacity of a filter while keeping the particle capture efficiency thereof and which thus ensures a prolonged filter life. The present invention pertains to a filter material comprising a spun lace nonwoven fabric which contains a thermoplastic synthetic filament nonwoven fabric as the intermediate layer.
B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups Auxiliary devices for filtrationFilter housing constructions
B01D 29/11 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
D04H 1/498 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
D04H 3/11 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D04H 5/03 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
63.
Crimped conjugated fiber and non-woven fabric comprising the fiber
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Kawakami, Yoshihisa
Suzuki, Kenichi
Tomita, Yoshihiko
Abstract
It is an object of the present invention to obtain crimped conjugated fibers having excellent crimp properties. The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration, wherein a cross section of the fiber includes at least two portions: a portion (a) and a portion (b); the portion (a) includes an olefin polymer (A) and the portion (b) includes an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw, melting point and MFR; and a specific fatty acid amide is added to the olefin polymer (A) and/or the olefin polymer (B). The present invention also provides a non-woven fabric including said crimped conjugated fiber.
A61F 13/53 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
A61F 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
A61F 13/514 - Backsheet, i.e. the impermeable cover or layer furthest from the skin
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
A61F 13/51 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the outer layers of the pads
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Matsubara, Akio
Suzuki, Kenichi
Kajiyama, Shingo
Abstract
An object of the invention is to obtain spunbonded nonwoven fabrics including thin hollow fibers which have excellent lightweight properties and uniformity as well as exhibit high strength and flexibility. An aspect of the invention is directed to a spunbonded nonwoven fabric including hollow fibers of a propylene polymer, the hollow fibers satisfying the following requirements (a) to (c): (a) the C-axis orientation is at least 0.85, (b) the average fiber diameter is 5 to 20 μm, and (c) the hollowness is 5 to 30%.
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
A61F 13/538 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium characterised by specific fibre orientation or weave
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
D04H 3/10 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
D01D 5/24 - Formation of filaments, threads, or the like with a hollow structureSpinnerette packs therefor
D01F 6/06 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
65.
Melt-blown nonwoven fabric, and production process and apparatus for the same
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Matsubara, Akio
Kajiyama, Shingo
Suzuki, Kenichi
Shiode, Hirohisa
Kubo, Takayuki
Abstract
It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 μm, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.
D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
D01D 5/098 - Melt-spinning methods with simultaneous stretching
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Suzuki, Kenichi
Yokoyama, Tetsuya
Abstract
The present invention provides a spunbonded non-woven fabric having excellent productivity, stretchability, touch and fuzz resistance without adhesion thereof on a roll and the like just after fiber deposition during the production. The spunbonded non-woven fabric comprises long fibers of a thermoplastic polyurethane elastomer (A) containing ethylene bisoleic acid amide and/or crosslinked organic fine particles and having a hardness of 75 to 85, and the spunbonded non-woven fabric comprises the long fibers of the thermoplastic polyurethane elastomer (A) and long fibers of a thermoplastic resin (B) other than the thermoplastic polyurethane elastomer (A). The present invention also provides uses thereof.
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
67.
Crimped conjugated fiber and non-woven fabric comprising the fiber
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Morimoto, Hisashi
Abstract
The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration wherein a cross section of the fiber comprises at least two portions: a portion (a) and a portion (b); the portion (a) comprises a propylene polymer (A) and the portion (b) comprises a propylene/α-olefin random copolymer (B); the propylene polymer (A) has Mz/Mw(A) and the propylene/α-olefin random copolymer (B) has Mz/Mw(B) wherein the difference thereof is in the range of 0.10 to 2.2; and the propylene polymer (A) has a melting point [Tm(A)] and the propylene/α-olefin random copolymer (B) has a melting point [Tm(B)] wherein the difference thereof exceeds 10° C. The present invention also provides a non-woven fabric comprising the crimped conjugated fiber.
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
A61F 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
A61F 13/512 - Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Ichikawa, Taro
Kawakami, Yoshihisa
Abstract
There is provided a nonwoven fabric excellent in the balance among fuzz resistance, softness and tensile strength. The nonwoven fabric comprises an embossed portion and a non-embossed portion; the embossed portion comprising an emboss pattern that comprises unit patterns each delimited by emboss lines; the emboss lines each comprising a plurality of emboss element parts that are continuously arranged with a predetermined interval; wherein in the direction in which the distance from any arbitrarily-defined point in the non-embossed portion within the unit pattern toward the outside of the emboss lines that delimit the non-embossed portion is shortest, at least one of the plurality of emboss element parts is disposed so as to block the direction in which the distance from the arbitrarily-defined point toward the outside of the emboss lines that delimit the non-embossed portion is shortest.
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
D04H 1/54 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Kato, Kazufumi
Tanaka, Tomoya
Obi, Rumina
Abstract
An object of the present invention is to provide a noise absorbing fabric in which electromagnetic waves are not susceptible to being reflected and which has superior noise absorbing ability, a noise absorbing fabric having noise absorbing ability across a wide band, a noise absorbing fabric that is soft, highly flexible, thin, and can be incorporated in intricate portions of electronic components or housings and the like by being bent or folded and the like, and a noise absorbing fabric that can be easily and stably produced without using an expensive soft magnetic material, is inexpensive and demonstrates high performance. In the noise absorbing fabric, a metal is subjected to metal processing on at least one side of a fabric, and the common logarithmic value of the surface resistivity of the surface subjected to metal processing is within the range of 0 to 4.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Kato, Kazufumi
Obi, Rumina
Ueno, Ikuo
Abstract
There is provided a high performance solid electrolytic capacitor that can be manufactured stably. The present invention provides the solid electrolytic capacitor comprising an anode foil and a cathode foil, and a separator arranged between the anode foil and the cathode foil, wherein the anode foil, the cathode foil, and the separator are wound around, so that the separator is intervened between the anode foil and the cathode foil, the anode foil has a dielectric oxide film layer, the separator comprises a solid electrolyte and a nonwoven fabric holding the solid electrolyte, the nonwoven fabric composing the separator is a laminated nonwoven fabric having at least two layers of the nonwoven fabric layers, and the laminated nonwoven fabric comprises a nonwoven fabric layer (layer I) composed of ultra fine fiber having a fiber diameter of 0.1 to 4 μm, and a nonwoven fabric layer (layer II) composed of a thermoplastic resin fiber having a fiber diameter of 6 to 30 μm.
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Masuda, Kazuhiko
Kawakami, Yoshihisa
Morimoto, Hisashi
Abstract
It is an object of the present invention to develop a polypropylene nonwoven fabric which is excellent in both of initial hydrophilicity and long-lasting hydrophilicity, that is, which is excellent in initial hydrophilicity that the nonwoven fabric exhibits hydrophilicity in a short time after it is produced and long-lasting hydrophilicity that the nonwoven fabric recovers hydrophilicity in a short time even if it is subjected to heat treatment. The present invention provides fibers of a propylene copolymer composition which comprises 100 parts by weight of a propylene/α-olefin random copolymer having a melting point (Tm) of 125 to 155° C. and 0.5 to 5 parts by weight of a nonionic surface active agent comprising an alkylene oxide adduct of an aliphatic alcohol.
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
B32B 27/02 - Layered products essentially comprising synthetic resin in the form of fibres or filaments
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
D01F 6/30 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
72.
Crimped conjugated fiber and nonwoven fabric comprising the same
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Morimoto, Hisashi
Masuda, Kazuhiko
Abstract
A crimped conjugated fiber having a cross-sectional configuration wherein: a cross section of the fiber comprises at least a portion (a) comprising a propylene polymer (A) and a portion (b) comprising a propylene polymer (B), the mass ratio of the portion (a) and the portion (b) is in the range of 10:90 to 55:45, the propylene polymer (A) has Mz/Mw (A) and the propylene polymer (B) has Mz/Mw (B) wherein the difference thereof is in the range of 0.30 to 2.2, the absolute value difference of the melting points of the propylene polymer (A) and the propylene polymer (B) is in the range of 0 to 10° C., and the ratio of MFR (A) of the propylene polymer (A) to MFR (B) of the propylene polymer (B) is in the range of 0.8 to 1.2. A nonwoven fabric of crimped conjugated fiber is also provided.
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
24 - Textiles and textile goods
Goods & Services
(1) Electromagnetic shields made of fabric, resin and elastomer in the form of sheets and films for use to prevent and diminish electromagnetic interference in electric apparatus; sheets of non-woven fabric for use as electromagnetic shields to prevent and diminish electromagnetic interference in electric apparatus; sheets and films of plastic, resin and elastomer for use as electromagnetic shields to prevent and diminish electromagnetic interference in electric apparatus; electric components, namely, transistors, diodes, thermistors, hall elements, magnetoresistive elements; semiconductor chips, computer chips, silicon chips; integrated circuits; large scale integrated circuits; noise suppression sheets and films of plastic, resin and elastomer for general industrial and manufacturing use; boards, plates, tapes, tubes, sheets and films of plastic, resin and elastomer for general industrial and manufacturing use; noise suppression sheets of non-woven fabric for general industrial and manufacturing use; woven fabric, non-woven fabric and knitted fabric, for use in the manufacture of electromagnetic shields to prevent and diminish electromagnetic interference in electric apparatus.
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
24 - Textiles and textile goods
Goods & Services
Electromagnetic shields to prevent or diminish electromagnetic interference in electric apparatus; sheets of non-woven fabric to prevent or diminish electromagnetic interference in electric apparatus; sheets and films of plastic, resin and/or elastomer to prevent or diminish electromagnetic interference in electric apparatus; electronic components, namely, transitors, diodes, thermistors, Hall elements, magnetoresistive elements; chips; integrated circuits; large-scale integrated circuits. Noise suppression sheets and films of plastic, resin and/or elastomer; boards, plates, tapes, tubes, sheets and films of plastic, resin and/or elastomer for further manufacturing; noise suppression sheets of non-woven fabric for further manufacturing. Woven fabric; non-woven fabric; knitted fabric.
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
24 - Textiles and textile goods
Goods & Services
Electromagnetic shields for use to prevent or diminish electromagnetic interference in electric apparatus; Sheets of non-woven fabric for use as electromagnetic shields to prevent or diminish electromagnetic interference in electric apparatus; Sheets and films of plastic, resin and/or elastomer for use as electromagnetic shields to prevent or diminish electromagnetic interference in electric apparatus; Electronic components, namely, transistors, diodes, thermistors, hall elements, magnetoresistive elements; Chips; Integrated circuits; Large-scale integrated circuits Noise suppression sheets and films of plastic, resin and/or elastomer; Boards, plates, tapes, tubes, sheets and films of plastic, resin and/or elastomer for further manufacturing; Noise suppression sheets of non-woven fabric for further manufacturing Woven fabric; non-woven fabric; knitted fabric
76.
Eccentric hollow conjugated continuous fiber, continuous-fiber nonwoven fabric made therefrom and uses thereof
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Matsubara, Akio
Suzuki, Kenichi
Motomura, Shigeyuki
Abstract
There is provided a continuous-fiber nonwoven fabric excellent in terms of bulkiness, flexibility, and shape stability. The continuous-fiber nonwoven fabric comprises eccentric hollow conjugated continuous fiber containing a part (A), a part containing a higher melting-point thermoplastic resin (A), and a part (B), a part containing a lower melting-point thermoplastic resin (B), the parts (A) and (B) having been bonded to each other in a side by side arrangement, wherein the difference in melting point between the higher melting-point thermoplastic resin (A) and the lower melting-point thermoplastic resin (B) is 5° C. or greater, the eccentric hollow conjugated continuous fiber has a part (A):part (B) proportion in the range of 5 to 30 weight %:95 to 70 weight %, the eccentric hollow conjugated continuous fiber has a cross-section in which the thickness (a) of the part (A) is smaller than the thickness (b) of the part (B), and the eccentric hollow conjugated continuous fiber has been crimped.
D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
D01D 5/24 - Formation of filaments, threads, or the like with a hollow structureSpinnerette packs therefor
D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
Inventor
Irie, Takaharu
Ueno, Ikuo
Abstract
(2) the composite filament yarn composed of a thermoplastic resin and forming the nonwoven fabric of the (c) layer contains a low melting point component, and the melting point of the low melting point component is lower than that of the yarn forming the nonwoven fabric of the (a) layer by 40 to 150° C.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 27/02 - Layered products essentially comprising synthetic resin in the form of fibres or filaments
D04H 3/11 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Motomura, Shigeyuki
Suzuki, Kenichi
Masuda, Kazuhiko
Morimoto, Hisashi
Kunimoto, Naosuke
Abstract
A non-woven fabric laminate that is excellent in strechability, flexibility, and bulkiness, and that is less sticky and is suitable for a mechanical fastening female material. The non-woven fabric laminate includes a mixed fiber spunbonded non-woven fabric and a non-woven fabric comprising a crimped fiber that is laminated on at least one face of the mixed fiber spunbonded non-woven fabric, which includes a continuous fiber of a thermoplastic elastomer (A) in the range of 10 to 90% by weight and a continuous fiber of a thermoplastic resin (B) in the range of 90 to 10% by weight (where (A)+(B)=100% by weight). The non-woven fabric laminate can be suitably used for a sanitary material and other materials. More specifically, there can be mentioned for instance an absorbent article such as a disposable diaper and a menstrual sanitary product as a sanitary material.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Suzuki, Kenichi
Matsubara, Akio
Motomura, Shigeyuki
Abstract
A polypropylene based nonwoven fabric is excellent in surface appearance and stretch properties and exhibits a small residual strain and excellent adhesiveness to polyolefins. The nonwoven fabric is obtained by forming a polypropylene resin composition comprising 1 to 40 weight parts of (i) an isotactic polypropylene, and 60 to 99 weight parts of (ii) a propylene/ethylene/α-olefin copolymer obtained by copolymerizing 45 to 89 mole % of propylene, 10 to 25 mole % of ethylene and the balance of α-olefin having 4 to 20 carbon atoms (with the proviso that the copolymerized amount of the α-olefin having 4 to 20 carbon atoms does not exceed 30 mole %), characterized by a small residual strain after stretching at a stretch ratio of 150%. The nonwoven fabric can be effectively used as sanitary materials or the like by virtue of its characteristics including stretch properties.
D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
D04H 3/00 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
81.
Nonwoven laminates and process for producing the same
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Motomura, Shigeyuki
Suzuki, Kenichi
Kunimoto, Naosuke
Abstract
A nonwoven fabric laminate possesses excellent elasticity, softness, water resistance, fuzz resistance and curl resistance, and has less stickiness.
The nonwoven fabric laminate includes at least one meltblown nonwoven fabric layer and mixed-fiber spunbonded nonwoven fabric layers on both surfaces of the at least one meltblown nonwoven fabric layer, the mixed-fiber spunbonded nonwoven fabric layers each comprising mixed fibers including 10 to 90 wt % of continuous fibers of a thermoplastic elastomer (A) and 90 to 10 wt % of continuous fibers of a thermoplastic resin (B) other than the thermoplastic elastomer (A) ((A)+(B)=100 wt %).
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D04H 1/00 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD. (Japan)
MITSUI CHEMICALS, INC. (Japan)
Inventor
Masuda, Kazuhiko
Morimoto, Hisashi
Horn, Thomas Alexander
Kline, Mark James
Abstract
A nonwoven web is provided. The nonwoven web contains a side-by-side composite fiber having crimps. The composite fiber contains first and second propylene polymers. The nonwoven web contains a bonded portion that contains a bonding pattern containing zigzag unit patterns. The zigzag unit patterns are continuous and substantially parallel with a first direction and are disposed in a second direction at predetermined intervals. A triangle formed by adjacent three contact points of a first diagonal line and a second diagonal line of the unit pattern contains a part of the unit pattern that is adjacent to the triangle in the second direction.
D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
D04H 1/44 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
Non-woven fabrics for use in the manufacture of food containers, air-permeable containers for various agents, molded filters, plant pots, home interiors and automotive materials
Non-woven fabrics for use in the manufacture of membrane substrate, industrial filters, backing cloth of separator, medical tape, filter media for beverages, packaging material of desiccant, materials for automotive parts and blinds
Non-woven fabrics, bed covers of non-woven fabrics, blinds of non-woven fabrics, covers of non -woven fabrics for cushions, filtering materials of non woven fabrics, lining of non-woven fabrics for shoes, table clothes of non woven fabrics, tapestry or wall hangings of non woven fabrics.
Non woven fabrics for use in the manufacture of filtration media for beverages, home furnishings, automotive parts, and for use in the manufacture of hygienic laminates for use by incontinents