An object of the present invention is to provide a polyurethane urea elastic fiber whose physical properties do not change much over time and which retains its initial mechanical properties, and a method for obtaining this fiber by modifying the molecular chain and ends of the polyurethane urea polymer. Another object of the present invention is to provide a polyurethane urea elastic fiber whose use can improve inventory management and fiber processing condition management, and which can be used to obtain a fabric with stable physical properties and qualities, and to provide a method for producing this fiber. The present invention is a polyurethane urea elastic fiber comprising: polyurethane urea polymer A having a molecular chain using a polymer diol, a diisocyanate, and an organic amine as starting materials, and having a primary or secondary amino group on at least one end; and polyurethane urea polymer B using a polymer diol, a diisocyanate, an organic amine, and an organic carboxylic acid as starting materials, and containing an amide bond, wherein the polyurethane urea elastic fiber contains primary or secondary amino end groups in the range of 0.1 meq or more and 20 meq or less per kilogram of polyurethane urea elastic fiber.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
A composite laminate is provided with improved appearance aesthetics and functionality for use in disposable diaper and hygiene products, providing particularly low elongation dependency of unload power, and a soft feel. The composite laminate body has a plurality of elastic fibers arranged in parallel in one direction, interposed between two sheets of cloth; and resin bonding the elastic fibers and the two sheets of cloth, provided in a plurality of strands arranged to be parallel in one direction that intersects with the elastic fibers; wherein the two sheets of cloth and the elastic fibers are separated between locations where adjacent resin strands and elastic fibers intersect in the longitudinal direction of the elastic fibers.
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 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
A61F 13/49 - 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
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
B32B 5/12 - 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 the relative arrangement of fibres or filaments of adjacent layers
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
To provide an additive and the like. An additive is configured by a polyurethane (A) having a value of V2/V1 of 1 or more when: a viscosity of when dissolved in dimethylacetamide (DMAc) at 20% by mass at 40°C is set to be V1; and a viscosity after 24 hours have additionally elapsed at 40°C after dissolution is set to be V2.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
To provide a highly durable polyurethane elastic fiber having high stress during shrinkage, that is, recovery stress, as well as excellent antioxidative properties. A polyurethane elastic fiber comprising a polyurethane having a polyether structure in its backbone and a nitrogen-containing aromatic compound, wherein the polyether structure is represented by the following general formula (1), and the polyurethane elastic fiber contains no less than 0.05% by mass to no more than 2.0% by mass of the nitrogen-containing aromatic compound Formula (I) (R1is an alkylene group having 2 to 6 carbon atoms, R2 is an alkyl group having 1 to 2 carbon atoms, and l, m, and n satisfy 4≤n/(l+m+n)×100≤50)
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08L 65/00 - Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCompositions of derivatives of such polymers
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
[Problem]
[Problem]
To provide a polyurethane elastic fiber with excellent spinnability, stretchability, thermal adhesion, and unwinding properties, and a production method therefor.
[Problem]
To provide a polyurethane elastic fiber with excellent spinnability, stretchability, thermal adhesion, and unwinding properties, and a production method therefor.
[Solution]
[Problem]
To provide a polyurethane elastic fiber with excellent spinnability, stretchability, thermal adhesion, and unwinding properties, and a production method therefor.
[Solution]
A polyurethane elastic fiber having as a main component a polyurethane whose main starting materials are a polymer diol and a diisocyanate, wherein the polyurethane elastic fiber contains the three components in (a) through (c) below.
(a) A thermoplastic polyurethane elastomer
(b) A rosin and/or derivative thereof
(c) A cellulose ester and/or derivative thereof
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
An object of the present invention is to provide a polyurethane urea elastic fiber with high elasticity and excellent textile property stability over time by modifying the ends of the polyurethane urea polymer molecular chain, and to provide a method for producing such a polyurethane urea elastic fiber. Another object of the present invention is to provide a polyurethane urea elastic fiber that allows for easier inventory control and processing condition management of fibers when it is used, and that can be used to obtain fabrics with stable fabric characteristics and fabric quality, and to provide a method for producing such a polyurethane urea elastic fiber.
An object of the present invention is to provide a polyurethane urea elastic fiber with high elasticity and excellent textile property stability over time by modifying the ends of the polyurethane urea polymer molecular chain, and to provide a method for producing such a polyurethane urea elastic fiber. Another object of the present invention is to provide a polyurethane urea elastic fiber that allows for easier inventory control and processing condition management of fibers when it is used, and that can be used to obtain fabrics with stable fabric characteristics and fabric quality, and to provide a method for producing such a polyurethane urea elastic fiber.
[Solution] A polyurethane urea elastic fiber comprising: polyurethane urea polymer A having a molecular chain using a polymer diol, a diisocyanate, and an organic amine as starting materials, and having a primary or secondary amino group at both ends of the molecular chain; and polyurethane urea polymer B having a molecular chain using a polymer diol, a diisocyanate, and an organic amine, and having a sulfonic acid amine salt on at least one end of the molecular chain.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D01F 6/72 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyureas
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
[Problem] An object of the present invention is to provide a polyurethane elastic fiber with excellent textile properties and textile property stability over time by including in the polyurethane elastic fiber a specific polyurethane having in the molecular structure a salt structure in which specific functional groups are ionically bonded to each other, and to provide a method for producing such a polyurethane elastic fiber. Another object of the present invention is to provide a polyurethane elastic fiber that allows for easier inventory control and processing condition management of fibers when used, and that can be used to obtain fabrics with stable fabric properties and fabric quality, and to provide a method for producing such a polyurethane elastic fiber. [Solution] A polyurethane elastic fiber comprising polyurethane A and additive B below. Polyurethane A: A polyurethane using as starting materials a polymer diol, a diisocyanate, and a chain extender, and not having a tertiary amine in the skeleton. Additive B: A polyurethane or polyurea using as starting materials a diol and/or a diamine and a diisocyanate, and having a tertiary amine nitrogen bonded only to a non-aromatic carbon in the skeleton, the tertiary amine nitrogen bonding ionically to a sulfonic acid compound to form a sulfonic acid amine.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
Problem To provide a polyurethane elastic yarn having good heat setting properties in a wide temperature range and high thermal adhesive strength in a wide temperature range while also maintaining its elastic properties (permanent deformation and elongation). Solution A polyurethane elastic yarn comprising polyurethane polymer [A] and polyurethane polymer [B] below, wherein the ratio of polyurethane polymer [A] to polyurethane polymer [B] in terms of parts by mass is from 1:99 to 30:70 or from 70:30 to 99:1, the exothermic peak (crystallization peak) of the polyurethane elastic yarn as measured by a differential scanning calorimeter (DSC) is in the range from 110° C. to 210° C., and the heat capacity at the exothermic peak is 3.0 J/g or more and 100 J/g or less. Polyurethane polymer [A]: a polyurethane polymer using as starting materials polymer diol A whose main chain repeating unit is an ether or an ester, diisocyanate A whose main skeleton is aromatic or aliphatic, and a single low molecular weight diol A having from 2 to 4 carbon atoms CA serving as a chain extender. Polyurethane polymer [B]: a polyurethane polymer using as starting materials polymer diol A, diisocyanate A, and a single low molecular weight diol B having from 1 to 4 carbon atoms CB more than CA serving as a chain extender.
To provide a recycled-material polyurethane elastic fiber using recovered fabric containing a polyurethane fiber and a final product as raw materials, and a method for producing such. A recycled-material polyurethane elastic fiber wherein a recovered fabric containing a polyurethane fiber is used as at least a portion of raw materials, and a component separated by solvent-extraction separation of the fabric is used as at least a portion of raw materials.
To provide a recycled-material polyurethane elastic fiber using recovered fabric containing a polyurethane fiber and a final product as raw materials, and a method for producing such. A recycled-material polyurethane elastic fiber using a recovered fabric containing a polyurethane fiber, wherein a component separated by wet gravity separation of the fabric is used as at least a portion of raw materials, and a method for producing such.
[Problem] To provide a polyurethane elastic fiber containing recycled polyurethane that can suppress the deterioration in certain properties due to recycling. [Solution] Provided is a polyurethane elastic fiber using a recycled polyurethane elastic fiber as at least one raw material, wherein the amount of metal soap in the polyurethane elastic fiber is 0.003% by mass or more and 3.0% by mass or less.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
An object of the present invention is to provide a polyurethane urea elastic fiber whose physical properties do not change much over time and which retains its initial mechanical properties, and a method for obtaining this fiber by modifying the molecular chain and ends of the polyurethane urea polymer. Another object of the present invention is to provide a polyurethane urea elastic fiber whose use can improve inventory management and fiber processing condition management, and which can be used to obtain a fabric with stable physical properties and qualities, and to provide a method for producing this fiber. The present invention is a polyurethane urea elastic fiber comprising: polyurethane urea polymer A having a molecular chain using a polymer diol, a diisocyanate, and an organic amine as starting materials, and having a primary or secondary amino group on at least one end; and polyurethane urea polymer B using a polymer diol, a diisocyanate, an organic amine, and an organic carboxylic acid as starting materials, and containing an amide bond, wherein the polyurethane urea elastic fiber contains primary or secondary amino end groups in the range of 0.1 meq or more and 20 meq or less per kilogram of polyurethane urea elastic fiber.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D01F 6/72 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyureas
An elastic fiber of the present invention having an elastic fiber treatment agent attached to the fiber surface, comprises: a hydrocarbon resin (A) having a structure in which a polymer including a structural unit whose monomer is at least one selected from aromatic olefins and aliphatic diolefins as the main structural unit is partially or fully hydrogenated; and a hydrocarbon oil (B). In this way, an elastic fiber and a fiber structure comprising the same are provided that are suitable for obtaining an elastic sheet that has excellent elastic fiber unraveling properties and adhesiveness to hot melt adhesives, and that exhibits good adhesiveness even when processed at a high draft, and for obtaining a sanitary product that is soft to the touch.
D06M 15/227 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
A61L 15/26 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bondsDerivatives thereof
D06M 13/02 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with hydrocarbons
D06M 15/233 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
D06M 15/643 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
D06M 13/188 - Monocarboxylic acidsAnhydrides, halides or salts thereof
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D01F 11/08 - Chemical after-treatment of man-made filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
To provide a polyurethane elastic fiber having excellent antibacterial properties and a production method therefor. An elastic fiber composed of a polyurethane whose main components are a polymer diol and a diisocyanate, wherein the polyurethane elastic fiber comprises a slowly water-soluble glass containing a Group 1B and/or Group 2B element and a nonionic surfactant.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
To provide a polyurethane elastic yarn that is superior in unwinding properties and adhesive properties in respect to a hot melt adhesive agent, and to provide a manufacturing method thereof. A polyurethane elastic yarn wherein the main structural component of the polyurethane is a polymer diol or diisocyanate; and includes a polymer that includes, as the main structural unit, a structural unit that uses an aromatic olefin and/or an aliphatic diolefin as a monomer, and is partially hydrogenated or completely hydrogenated.
[Problem] To provide a polyurethane elastic yarn that excels in a heat bonding property and an unwinding property, as well as a knotting property and stretching and shrinking characteristic, and a manufacturing method therefor. [Solution] A polyurethane elastic yarn having, as a main constituent component thereof, polyurethane whose main starting materials are a polymer diol and a diisocyanate, said polyurethane elastic yarn containing the three components (a) to (c). (a) a thermoplastic polyurethane elastomer (b) a rosin and/or a derivative thereof (c) a cellulose ester and/or a derivative thereof
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
17.
POLYURETHANE ELASTIC FIBRE AND PRODUCTION METHOD THEREFOR
[Problem] An object of the present invention is to provide a polyurethane elastic fiber with excellent textile properties and textile property stability over time by including in the polyurethane elastic fiber a specific polyurethane having in the molecular structure a salt structure in which specific functional groups are ionically bonded to each other, and to provide a method for producing such a polyurethane elastic fiber. Another object of the present invention is to provide a polyurethane elastic fiber that allows for easier inventory control and processing condition management of fibers when used, and that can be used to obtain fabrics with stable fabric properties and fabric quality, and to provide a method for producing such a polyurethane elastic fiber. [Solution] A polyurethane elastic fiber comprising polyurethane A and additive B below. Polyurethane A: A polyurethane using as starting materials a polymer diol, a diisocyanate, and a chain extender, and not having a tertiary amine in the skeleton. Additive B: A polyurethane or polyurea using as starting materials a diol and/or a diamine and a diisocyanate, and having a tertiary amine nitrogen bonded only to a non-aromatic carbon in the skeleton, the tertiary amine nitrogen bonding ionically to a sulfonic acid compound to form a sulfonic acid amine.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
An object of the present invention is to provide a polyurethane urea elastic fiber with high elasticity and excellent textile property stability over time by modifying the ends of the polyurethane urea polymer molecular chain, and to provide a method for producing such a polyurethane urea elastic fiber. Another object of the present invention is to provide a polyurethane urea elastic fiber that allows for easier inventory control and processing condition management of fibers when it is used, and that can be used to obtain fabrics with stable fabric characteristics and fabric quality, and to provide a method for producing such a polyurethane urea elastic fiber. [Solution] A polyurethane urea elastic fiber comprising: polyurethane urea polymer A having a molecular chain using a polymer diol, a diisocyanate, and an organic amine as starting materials, and having a primary or secondary amino group at both ends of the molecular chain; and polyurethane urea polymer B having a molecular chain using a polymer diol, a diisocyanate, and an organic amine, and having a sulfonic acid amine salt on at least one end of the molecular chain.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D01F 6/72 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyureas
Problem To provide a polyurethane elastic yarn having good heat setting properties in a wide temperature range and high thermal adhesive strength in a wide temperature range while also maintaining its elastic properties (permanent deformation and elongation). Solution A polyurethane elastic yarn comprising polyurethane polymer [A] and polyurethane polymer [B] below, wherein the ratio of polyurethane polymer [A] to polyurethane polymer [B] in terms of parts by mass is from 1 :99 to 30:70 or from 70:30 to 99:1, the exothermic peak (crystallization peak) of the polyurethane elastic yarn as measured by a differential scanning calorimeter (DSC) is in the range from 110°C to 210°C, and the heat capacity at the exothermic peak is 3.0 J/g or more and 100 J/g or less. Polyurethane polymer [A]: a polyurethane polymer using as starting materials polymer diol A whose main chain repeating unit is an ether or an ester, diisocyanate A whose main skeleton is aromatic or aliphatic, and a single low molecular weight diol A having from 2 to 4 carbon atoms CA serving as a chain extender. Polyurethane polymer [B]: a polyurethane polymer using as starting materials polymer diol A, diisocyanate A, and a single low molecular weight diol B having from 1 to 4 carbon atoms CB more than CA serving as a chain extender.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
An elastic fiber of the present invention having an elastic fiber treatment agent attached to the fiber surface, comprises: a hydrocarbon resin (A) having a structure in which a polymer including a structural unit whose monomer is at least one selected from aromatic olefins and aliphatic diolefins as the main structural unit is partially or fully hydrogenated; and a hydrocarbon oil (B). In this way, an elastic fiber and a fiber structure comprising the same are provided that are suitable for obtaining an elastic sheet that has excellent elastic fiber unraveling properties and adhesiveness to hot melt adhesives, and that exhibits good adhesiveness even when processed at a high draft, and for obtaining a sanitary product that is soft to the touch.
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 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
D06M 13/02 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with hydrocarbons
D06M 15/227 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
D06M 15/233 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
A composite laminate is provided with improved appearance aesthetics and functionality for use in disposable diaper and hygiene products, providing particularly low elongation dependency of unload power, and a soft feel. The composite laminate body has a plurality of elastic fibers arranged in parallel in one direction, interposed between two sheets of cloth; and resin bonding the elastic fibers and the two sheets of cloth, provided in a plurality of strands arranged to be parallel in one direction that intersects with the elastic fibers; wherein the two sheets of cloth and the elastic fibers are separated between locations where adjacent resin strands and elastic fibers intersect in the longitudinal direction of the elastic fibers.
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 13/49 - 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
22.
POLYURETHANE ELASTIC YARN AND MANUFACTURING METHOD THEREOF
To provide a polyurethane elastic yarn that is superior in unwinding properties and adhesive properties in respect to a hot melt adhesive agent, and to provide a manufacturing method thereof. A polyurethane elastic yarn wherein the main structural component of the polyurethane is a polymer diol or diisocyanate; and includes a polymer that includes, as the main structural unit, a structural unit that uses an aromatic olefin and/or an aliphatic diolefin as a monomer, and is partially hydrogenated or completely hydrogenated.
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
Elastic yarn wound body packages able to simplify processing of a tail yarn of an elastic yarn when manufacturing a fabric, or the like, continuously by simultaneous vertical take-up unwinding of a multistage elastic yarn through providing elastic yarn wound body packages on a multistage stand are provided. The elastic yarn wound body package comprises a paper tube and an elastic yarn wound body, wherein: the paper tube has a groove in the circumferential direction, perpendicular to the paper tube axis, between an end portion of the elastic yarn wound body and an end portion of the paper tube; a tail yarn of the elastic yarn wound body is wound into the groove; and a wire-shaped object or tape-shaped object that crosses at least a portion of the yarn bundle of the tail yarn is held thereby. Also provided are paper tubes comprising, in the vicinity of at least one end, a tail thread wrapping groove having parallel edges along a circumferential direction perpendicular to the axis of the paper tube, the paper tube comprising a recession, the maximum width of which is greater than the width of the tail thread wrapping groove and the deepest part of which is deeper than the tail thread wrapping groove, over the tail thread wrapping groove or an extension of the tail thread wrapping groove and elastic thread reel packages comprising these paper tubes.
A composite laminate is provided with improved appearance aesthetics and functionality for use in disposable diaper and hygiene products, providing particularly low elongation dependency of unload power, and a soft feel. The composite laminate body has a plurality of elastic fibers arranged in parallel in one direction, interposed between two sheets of cloth; and resin bonding the elastic fibers and the two sheets of cloth, provided in a plurality of strands arranged to be parallel in one direction that intersects with the elastic fibers; wherein the two sheets of cloth and the elastic fibers are separated between locations where adjacent resin strands and elastic fibers intersect in the longitudinal direction of the elastic fibers.
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
B32B 5/12 - 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 the relative arrangement of fibres or filaments of adjacent layers
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 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 3/00 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form
Elastic yarn wound body packages able to simplify processing of a tail yarn of an elastic yarn when manufacturing a fabric, or the like, continuously by simultaneous vertical take-up unwinding of a multistage elastic yarn through providing elastic yarn wound body packages on a multistage stand are provided. The elastic yarn wound body package comprises a paper tube and an elastic yarn wound body, wherein: the paper tube has a groove in the circumferential direction, perpendicular to the paper tube axis, between an end portion of the elastic yarn wound body and an end portion of the paper tube; a tail yarn of the elastic yarn wound body is wound into the groove; and a wire-shaped object or tape-shaped object that crosses at least a portion of the yarn bundle of the tail yarn is held thereby. Also provided are paper tubes comprising, in the vicinity of at least one end, a tail thread wrapping groove having parallel edges along a circumferential direction perpendicular to the axis of the paper tube, the paper tube comprising a recession, the maximum width of which is greater than the width of the tail thread wrapping groove and the deepest part of which is deeper than the tail thread wrapping groove, over the tail thread wrapping groove or an extension of the tail thread wrapping groove and elastic thread reel packages comprising these paper tubes.
The present invention addresses the problem of providing a composite laminated body with which both functionality and aesthetics demanded of clothing or sophisticated disposable diaper products can be achieved, which has excellent fit when worn and smooth and orderly pleats, and which has a uniform appearance in which elastic fibers are inconspicuous. A composite laminated body comprises: a plurality of elastic fibers unidirectionally arranged side by side between two fabrics; and a plurality of resin portions unidirectionally extending in a direction crossing the elastic fibers. Each of the two fabrics and the elastic fibers are spaced apart from each other where unidirectionally extending resin portions adjacent to each other in a longitudinal direction of the elastic fibers and the elastic fibers cross each other, and a ratio of the fineness of the elastic fibers to the fineness of fibers constituting the fabrics is 0.5 or more and 300 or less.
B32B 5/12 - 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 the relative arrangement of fibres or filaments of adjacent layers
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 13/496 - 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 in the form of pants or briefs
27.
Polyurethane resin, polyurethane resin composition, and method for manufacturing polyurethane resin
The present invention relates to a polyurethane resin including, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
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
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
Provided is a fiber structure that includes an elastic yarn comprising a polyurethane that uses a polymer diol and a diisocyanate as starting materials, and contains at least one alkyl diphenyl ether-based compound, and thus has excellent odor eliminating properties with respect to ammonia, acetic acid and the like, which are the primary components of sweat and body odor.
To provide a fabric containing a polyester fiber and a polyurethane elastic yarn that are excellent in deodorant function of sweat odor and the distinctive body odor of elderly. A fabric that is a combined fabric including a polyurethane elastic yarn and a cationic dyeable polyester fiber where a deodorant ratio of ammonia gas measured according to the detector tube method defined by Japan Textile Evaluation Technology Council for 0.15 g of polyurethane elastic yarn is greater than or equal to 40% both after washing 0 times and 10 times, also a mixing ratio of the polyurethane elastic yarn is from 5 wt.% to 30 wt.%, and a mass of 10 cm x 10 cm is greater than or equal to 1 g.
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
30.
POLYURETHANE ELASTIC FIBER AND METHOD FOR PRODUCING SAME
The polyurethane elastic fiber of the present invention is obtained by spinning polyurethane resin having a diol (a1) having a number average molecular weight of 500-10,000, an organic diisocyanate (b), and a chain extender (a2) as structural units, wherein the sum of the concentration of urethane groups and the concentration of urea groups is 1.25-2.50 mmol/g based on the weight of the polyurethane resin, and the average domain size of the hard segment domain of the polyurethane resin measured by atomic force microscopy is 20-30 nm.
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
31.
POLYURETHANE RESIN, POLYURETHANE RESIN COMPOSITION, AND METHOD FOR MANUFACTURING POLYURETHANE RESIN
The polyurethane resin of the present invention has a diol (a1) having a number average molecular weight of 500-10,000, an organic diisocyanate (b), and a chain extender (a2) as structural units, wherein the sum of the concentration of urethane groups and the concentration of urea groups is 1.25-2.50 mmol/g based on the weight of the polyurethane resin, and the average domain size of a hard segment domain of the polyurethane resin measured by atomic force microscopy is 20-30 nm.
Provided is a fiber having lasting scent properties, i.e., that maintains a scent over a long period of time after absorbing a scent component. The fiber is a polyurethane fiber having lasting scent properties that is characterized by the overall dissipation amount of a scent component 48 hours after absorption of the scent component being 0.1-1000 µg/g·h.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
Provided is a cloth which exhibits scent retentivity for, e.g., a perfume-containing softener and/or detergent component for laundry use. A cloth which contains a synthetic fiber, characterized by exhibiting scent retentivity for a perfume-containing softener and/or detergent component for laundry use.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
34.
ELASTIC POLYURETHANE FIBER AND METHOD FOR MANUFACTURING SAME
An aim of the present invention is to provide an elastic polyurethane fiber having excellent mechanical characteristics - particularly excellent stress characteristics at an elongation region of between 100% and 200% that is a region of actual use, while using a diisocyanate compound having excellent yellowing resistance. The elastic polyurethane fiber contains polyurethane polymerized from a diol compound, polyol, and an organic diisocyanate compound. The organic diisocyanate compound contains at least 1,4-bis (isocyanatomethyl) cyclohexane, and the trans/cis isomer ratio of the 1,4-bis (isocyanatomethyl) cyclohexane is between 70/30 and 95/5.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
D04B 21/00 - Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machinesFabrics or articles defined by such processes
35.
POLYURETHANE YARN, AS WELL AS FABRIC AND SWIMWEAR USING SAME
In order to provide a polyurethane yarn having exceptional performance in terms of resistance to chlorine embrittlement essentially without the use of zinc, which is a heavy metal, and having advantageous application particularly in swimwear; as well as a fabric and article of swimwear using the polyurethane yarn, the present invention is a polyurethane yarn characterized in containing a partially hindered phenol compound having at least one partially hindered hydroxyphenyl group and a molecular weight of 300 or more, and a synthetic carbonate comprising one metal selected from the group consisting of alkali metals and alkaline-earth metals. The polyurethane yarn and other fibers are combined to yield a fabric and article of swimwear.
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
A41D 7/00 - Bathing gownsSwim-suits, drawers, or trunksBeach suits
D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
D04B 21/18 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threadsFabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
To provide elastic fabric that has comfortable wear and fit even in thin and light fabric by using a high-powered polyurethane elastic fiber that has at least 1.5 times the active force and recovery per unit fineness at the time of 100 to 200% elongation compared to conventional polyurethane elastic fiber. Resolution means an elastic fabric comprising a polyurethane elastic fiber made of a polyol, with a molecular weight between 450 and 1600 with a ratio of weight average molecular weight to number average molecular weight of at least 1.8, an organic diisocyanate compound, and a diamine compound.
D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
D04B 21/18 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threadsFabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
KNITTED FABRIC HAVING ELASTIC FIBERS, PROCESS FOR PRODUCING SAME, AND STRETCH GARMENT AND STRETCH GARMENT MATERIAL BOTH OBTAINED USING THE KNITTED FABRIC
Knitted fabric which is excellent in terms of elongation properties, dimensional stability, and conformability to the skin and which can be sufficiently inhibited from getting out of shape even when worn repeatedly. The knitted fabric is prevented from developing a barre defect or a run and has high color fastness and excellent strength retentivity. The knitted fabric has been knitted using, as the only yarn, a knitting yarn comprising elastic fibers. The knitting yarn has a fineness of preferably 11 dtex or more. The knitted fabric has dimensional changes, as measured by a testing method in accordance with the method G (method with domestic electric washing machine) as provided for in 8.39 (dimensional change) of JIS L 1096 (2010) (methods for testing woven fabric and knitted fabric), in the wale direction (warp direction) and the course direction (weft direction) of preferably -2% to +2% each. The stress at 200% elongation is preferably 100-2,000 cN. In the case of dyeing, it is preferred to use a cationic dye to dye the knitted fabric at a temperature of 30-120ºC.
D04B 21/18 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threadsFabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
38.
ELASTIC POLYURETHANE THREAD AND MANUFACTURING METHOD THEREOF
Disclosed is an elastic polyurethane thread with excellent antibacterial and deodorant properties and color fastness. The disclosed the elastic thread comprises a polyurethane with polymer diols and diisocyanate as starting materials and contains metal phosphates in a range of 0.5-10 mass%, wherein the emission amount of monoamine compounds with a molecular mass of 120 or less is 100 μg/m2 or greater.
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
39.
POLYURETHANE ELASTIC YARN AND METHOD FOR PRODUCING SAME
Disclosed is polyurethane elastic yarn which has excellent elongation, recoverability and light resistance and is suitable for stretchable fabric, clothes and the like. For the purpose of obtaining the polyurethane elastic yarn, at least one of the following materials (A), (B) and (C) is blended when polyurethane elastic yarn is produced using a polymer diol and a diisocyanate as starting materials. (A) a benzotriazole ultraviolet absorbent and/or a benzophenone ultraviolet absorbent, which contains one or more unsaturated bonds in each molecule (B) a benzotriazole ultraviolet absorbent which contains one or more alkoxy groups in each molecule (C) a benzophenone ultraviolet absorbent which contains one or more sulfonic acid groups in each molecule
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
40.
POLYURETHANE ELASTIC YARN AND PRODUCTION METHOD THEREOF
{Problem} To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. {Means of Resolution} A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.
D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
Disclosed is a deodorizing material having excellent deodorizing properties, particularly a deodorizing function against distinctive body odor of middle-aged or elderly persons. The deodorizing material comprises a polyurethane resin capable of deodorizing nonenal. Preferably, the deodorizing material can also deodorize at least one member selected from the group consisting of ammonia, acetic acid and isovaleric acid.
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyurethanes
patents
