A back light unit includes an array of light emitting diodes, at least two optical films positioned above the array of light emitting diodes, and a pair of brightness enhancement films positioned above the at least two optical films. A majority of the optical films are light splitting optical films having a plurality of light splitting microstructures on at least one surface thereof.
A color conversion film for a backlight unit that includes an array of light emitting diodes. The color conversion film includes a substantially planar base portion, and a plurality of three-dimensional structures extending from the substantially planar base portion. Each of the three-dimensional structures has at least one sloped surface with a base angle of about 55°-75° relative to the substantially planar base portion. The color conversion film includes a material having a refractive index of about 1.5-1.7.
F21V 9/32 - Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
A light transmissive substrate for transforming a Lambertian light distribution includes a base film having a first side and a second side opposite the first side, a plurality of first microstructures disposed on the first side of the base film and a plurality of first valleys. Each of the first valleys is defined by a pair of adjacent first microstructures. A filler material is disposed in the plurality of first valleys and defines a substantially planar surface spaced from and substantially parallel to the first side of the base film. The substrate also includes a plurality of second microstructures disposed on the substantially planar surface of the filler material and a plurality of second valleys. Each of the second valleys is defined by a pair of adjacent second microstructures.
A fluid distribution material for use in an absorbent article includes a formed film layer having first and second sides and a basis weight of between about 10 gsm and about 25 gsm, and a nonwoven layer having a basis weight of between about 10 gsm and about 15 gsm and laminated to the formed film layer. The formed film layer includes a plurality of apertured protuberances arranged in a pattern having 10 to 40 protuberances per linear inch. Each of the protuberances includes a continuous sidewall extending from the first side, and the second side has a plurality of apertures aligned with the plurality of protuberances, and land areas in between the apertures. The nonwoven layer includes a plurality of fibers attached to the formed film layer at the land areas. The material has a rewet value of less than 0.075 grams in accordance with the Rewet Test Method. The fluid distribution material has a compressibility of less than 10% between pressures of 0.21 psi and 0.60 psi.
A61F 13/515 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads characterised by the interconnection of the topsheet and the backsheet
A61F 13/512 - Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
B32B 3/26 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a layer with cavities or internal voids
B32B 3/30 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
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
5.
MICROSTRUCTURES FOR TRANSFORMING LIGHT HAVING LAMBERTIAN DISTRIBUTION INTO BATWING DISTRIBUTIONS
A light transmissive substrate for transforming a Lambertian light distribution into a batwing light distribution. The light transmissive substrate includes a first surface comprising a plurality of microstructures, and a second surface on a side of the substrate opposite the first surface. The substrate is configured to receive light in a Lambertian distribution from a light source at the first surface and transform the light into a batwing distribution exiting the second surface. The batwing distribution having a peak intensity at about ±30° to about ±60° from X and Y axes, and a minimum intensity at nadir.
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21K 9/60 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
F21V 13/00 - Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups
F21V 13/02 - Combinations of only two kinds of elements
F21V 13/04 - Combinations of only two kinds of elements the elements being reflectors and refractors
A scrubbing wipe includes a scrim that includes a plurality of filaments, and a formed film attached to the scrim. The formed film encompasses at least 50% of the circumferences of at least a portion of the plurality of filaments and includes a plurality of apertured extended cells extending away from the scrim.
A47L 17/08 - Pads; Balls of steel wool, wire, or plastic meshes
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
Films may be used as interleaves between hard and non-compressible surfaces such as surfaces of sheets or plates made of glass, metal, such as steel, polycarbonate, and/or poly(methyl methacrylate). The films may be embossed and/or may include a foamed core layer having a plurality of micro-voids. In particular, the films may include a polyolefin, a basis weight of between about 30 gsm and about 70 gsm, an embossed thickness of between about 150 microns and 800 microns, and a stiffness of between about 150 grams and about 750 grams according to the Circular Bend Stiffness Test.
A light transmissive structure includes a light transmissive substrate having first and second opposing faces, and an array of microprism elements on the first face. Each microprism element includes a first inclined surface disposed at a first inclined angle relative to the second face, and a second inclined surface disposed at a second inclined angle relative to the second face. The first inclined angle is less than the second inclined angle, and a peak angle between the first inclined surface and second inclined surface is in the range of about 70 degrees to about 100 degrees. The second inclined surface has a convex curvature when viewed from angles perpendicular thereto. The light transmissive structure is configured to receive light from a light source facing the first face in a first direction and redistribute light emerging from the second face in a second direction different from the first direction.
An activated composite web includes a nonwoven layer, and a formed film layer attached to the nonwoven layer. The formed film layer includes a plurality of first apertured protuberances having a mesh count of at least 35, and a plurality of second apertured protuberances. Each of the second apertured protuberances has a cross-sectional area larger than each of the first apertured protuberances. A plurality of first lanes are aligned in a first direction and have a first width extending in a second direction substantially perpendicular to the first direction. The first apertured protuberances are located in the first lanes. A plurality of second lanes are aligned in the first direction and have a second width, less than the first width, extending in the second direction. The first lanes and the second lanes alternate with each other in the second direction. The second apertured protuberances are located in the second lanes.
A61F 13/00 - Bandages or dressings; Absorbent pads
A61F 13/51 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
A61F 13/512 - Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
10.
HYDROFORMED COMPOSITE MATERIAL AND METHOD FOR MAKING SAME
A hydroformed composite material includes an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than an original loft of an original unexpanded spun bonded nonwoven web from which the expanded spun bonded nonwoven layer was created, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web and a formed film layer comprising a plurality of extended cells containing continuous fibers and/or fibrils of the expanded spun bonded nonwoven layer. Each of the plurality extended cells has an elliptical cross-section parallel to the planar surface of the nonwoven web. The elliptical cross-section defines an extended cell axis ratio in a range of 0.65 to 1.35.
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
D04H 1/492 - 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 by fluid jet
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 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
A hydroformed expanded spun bonded nonwoven web has a first substantially planar surface on one side thereof and a second surface on an opposite side thereof. The second surface includes a plurality of protuberances in a pattern. The hydroformed expanded spun bonded web has an average loft of at least about 1.3 times greater than an original average loft of an original unexpanded spun bonded nonwoven web from which the hydroformed expanded spun bonded nonwoven web was created, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.
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 1/00 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
D04H 1/40 - 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
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
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 3/00 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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
A composite material includes a nonwoven layer having a plurality of fibers and a polymer film layer with a plurality of extended cells. Each of the extended cells are contemplated to include continuous sidewalls extending away from the nonwoven layer. At least one of the fibers extends into one or more of the extended cells.
A formed film includes a first surface generally located in a first plane, a second surface generally located in a second plane parallel to and spaced from the first plane, and a third surface generally located in a third plane parallel to and spaced from the first plane and the second plane, in between the first plane and the second plane. A porous structure extends between the second surface and the third surface. A plurality of raised areas have sidewalls that extend between the first surface and the third surface, and top portions that define the first surface. The plurality of sidewalls, the porous structure, and the first plane define a plurality of gathering volumes.
A polymeric film is provided, the film comprising one or more land portions that are substantially coplanar in a base plane and a plurality of distended portions separated from one another by the one or more land portions. The distended portions bow distally outward from the base plane. The polymeric film further comprises a plurality of annular micro-protrusions extending outward from the distal film surface, each protrusion having an apex. A portion of the plurality of annular micro-protrusions extends from each of the one or more land portions of the polymeric film and from each of the distended portions of the polymeric film.
A method of processing a polymeric web includes providing a forming screen configured for supporting and moving with the web in a machine direction. The forming screen has a plurality of elliptical screen openings, each having a major axis perpendicular to the machine direction and a minor axis parallel to the machine direction. The method includes continuously depositing the web onto the forming screen and passing the web and forming screen through a water stream having a pressure level sufficient to cause the web to be forced into the screen openings, thereby forming protrusions extending from the planar surface of the web. Each protrusion has an apex, an opening at the apex, and an elliptical cross-section parallel to the planar surface of the web. The elliptical cross-section has a protrusion axis ratio that may be selected so as to produce a desired protrusion axis ratio.
B28B 11/08 - Apparatus or processes for treating or working the shaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
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
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face. A respective microprism element includes at least one ring comprising a plurality of microstructure pyramids that is rotated randomly and/or pseudorandomly on the first face about an axis that is orthogonal to the substrate relative to at least one other microprism element. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution.
B29L 11/00 - Optical elements, e.g. lenses, prisms
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
F21V 7/06 - Optical design with parabolic curvature
F21V 7/08 - Optical design with elliptical curvature
F21S 11/00 - Non-electric lighting devices or systems using daylight
F21V 13/04 - Combinations of only two kinds of elements the elements being reflectors and refractors
An absorptive device includes a topsheet, a backsheet, an absorbent core between the topsheet and the backsheet, and an acquisition distribution layer between the topsheet and the absorbent core. The acquisition distribution layer includes a formed film having a plurality of lands that contact a bottom surface of the topsheet and define an irregular array of cells
A61F 5/44 - Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
B32B 3/24 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
A method of refining a polymer resin material is provided. The method comprises melting and subjecting the resin material to shear stresses in a range of 250 kPa to 400 kPa to form a refined resin material. The refined resin material may be extruded, solidified and cut into reduced microgel resin pellets, which may be subsequently melted and extruded to form a reduced microgel film.
B23D 23/04 - Machines or devices for shearing or cutting profiled stock by means of holding-dies, arranged side by side, subjecting the stock to torsional stress
C08L 23/22 - Copolymers of isobutene; Butyl rubber
C08L 101/14 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and an array of microprism elements on the first face, with a respective microprism element comprising a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the second face and reduce high-angle luminous intensity of the light emerging from the first face.
An illustrative aspect of the invention provides a film comprising a release layer defining a first outer film surface and an adhesion layer defining a second outer film surface opposite the first outer film surface. The adhesion layer comprises a hydrogenated styrene block copolymer with a styrene content in a range of about 30% to 40% by weight. In some embodiments, the adhesion layer may further comprise low density polyethylene (LDPE). In some embodiments, the adhesion layer may further comprise LDPE and high density polyethylene (HDPE).
An absorbent article with a three-dimensional film transfer layer having an open lattice structure formed from a single film for improved user properties.
A61F 13/512 - Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
A61F 13/537 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
22.
MICROSTRUCTURE-BASED DIFFUSERS FOR CREATING BATWING LIGHTING PATTERNS
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face. A respective microprism element includes at least one ring comprising a plurality of microstructure pyramids that is rotated randomly and/or pseudorandomly on the first face about an axis that is orthogonal to the substrate relative to at least one other microprism element. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution.
A formed film with micro-cells and macro-cells or depressions may be disclosed. For example, the film may include a lands. Each of the lands may include micro-cells thereon. The micro-cells may have a first orientation. The film may further include macro-depressions adjacent to at least one respective land. Each of the macro depressions may include additional second micro- cells. Those additional micro-cells may have a second orientation. The second orientation includes an orientation that is an inverse of the first orientation (e.g., is in an opposite direction of the first orientation).
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
A61F 13/513 - Topsheet, i.e. the permeable cover or layer facing the skin having areas of different permeability
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and an array of microprism elements on the first face, with a respective microprism element comprising a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the second face and reduce high-angle luminous intensity of the light emerging from the first face
A process of constructing a forming screen through metal deposition in a nonconductive preform structure to achieve a desired aspect ratio of the forming screen thickness to open area.
A light distribution device includes a light transmissive substrate having first and second opposing faces and a plurality of substantially parallel linear prisms on the second face that extend in a longitudinal direction of the substrate. The light distribution device is configured to connect to a light assembly including a linear light source with the first face of the substrate facing the light source, with the linear prisms substantially parallel to a light source longitudinal axis and with and the substrate having a non-planar cross-sectional shape such that at least a major portion of the substrate is concave relative to the light source. When connected, the light distribution device is configured to receive light from the light source and distribute the light emerging from the second face of the substrate in a batwing distribution pattern in a plane perpendicular to the light source longitudinal axis.
F21K 9/65 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
F21V 3/04 - Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
A light distribution device includes a light transmissive substrate having first and second opposing faces and a plurality of substantially parallel linear prisms on the second face that extend in a longitudinal direction of the substrate. The light distribution device is configured to connect to a light assembly including a linear light source with the first face of the substrate facing the light source, with the linear prisms substantially parallel to a light source longitudinal axis and with and the substrate having a non-planar cross-sectional shape such that at least a major portion of the substrate is concave relative to the light source. When connected, the light distribution device is configured to receive light from the light source and distribute the light emerging from the second face of the substrate in a batwing distribution pattern in a plane perpendicular to the light source longitudinal axis.
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face, with a respective microprism element including a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution.
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face, with a respective microprism element including a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution.
A volumetric diffuser utilizing polyolefins and light scattering particles to provide desired efficiency without hot-spots where surface texture is utilized to reduce the tendency of the polyolefin based volumetric diffuser to scratch.
Systems ans methods for forming a vacuum formed, apertured film (50) with micro-aberrations (52) may be disclosed. For example, a polymer web such as a molten polymer web (10) may be received at an engagement point (40) between a screen (22) with a positive aberration and a roller (32) comprising a surface with a negative depression. The roller (32) may have a diameter of no more than about 5.5 inches. A micro-aberration (52) may be expanded, for example, on a land of the polymer web at the engagement point (40) by inserting the positive aberration on the screen (20) into the negative depression on the surface of the roller (32) at a pressure of about 1.5 to about 3.5 pounds per linear inch (PLI). Additionally, one or more apertures are formed in the polymer web (10) adjacent to a micro-aberration (52) on a land.
Systems and methods for forming an elastic laminate may be disclosed. For example, an elastic material may be extruded onto a first nonwoven web. In the extrusion, the elastic material may be directly applied to the first nonwoven web continuously in a machine direction and discontinuously in a cross direction to form the elastic laminate with one or more elastic strips on the first nonwoven web. The elastic material may also be applied unevenly or non-uniformly in the cross direction strips on the first nonwoven web. A second nonwoven web may be bonded to the first nonwoven web with the one or more elastic strips. The first or second nonwoven may also be pre-activated to further improve stretch and/or softness.
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
33.
AN APERTURED FORMED FILM WITH A PATTERN OF APERTURES AND A PLURALITY OF LIGHT TRAP MICRO-PITS
An apertured film with a reduced gloss through the use of light trap micro-pits uniformly distributed on the lands of the film in a random pattern and a method of making the same.
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
A61F 13/513 - Topsheet, i.e. the permeable cover or layer facing the skin having areas of different permeability
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
34.
Light transmissive structures and fabrication methods for controlling far-field light distribution
Light transmissive structures include a light transmissive substrate that includes optical microstructures. The optical microstructures have a geometric feature that is configured to reduce glare in light transmitted through the light transmissive structure. Moreover, the plurality of optical microstructures also have a geometric feature that is configured to vary randomly and/or pseudorandomly across the light transmissive substrate so as to diffuse light transmitted through the light transmissive structure. Related fabrication methods are also described.
A method of protecting a smooth surfaced substrate by a surface protection film that has improved high temperature peel force properties and low residue upon removal of the surface protection film from the smooth surfaced substrate.
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
42 - Scientific, technological and industrial services, research and design
Goods & Services
Optical films for use in lighting and LED light source applications; optical films for use in the control and management of light sources; optical films for reflecting light plastic film for making signs; plastic film for use in the manufacture of displays and signs; plastic film that reflects light; reflective plastic films; sheets and films for use in electronic displays; plastics films for use in electronic displays and signs; and plastic light management film engineering consulting services; application engineering services; engineering consulting services for manufacturing; consulting in the field of designing materials for lighting applications, signs, or displays; design and development of films, sheets, and materials for others; design and development of components for making digital displays and signs; and fabrication of reflectors for display devices, signage, or lighting applications for others
37.
ABSORBENT ARTICLE HAVING A TROUGHED FILM AS A TRANSFER LAYER
The application relates to absorbent articles and in particular to absorbent articles containing a transfer layer having a three-dimensional structure that is orientated for improved directional flow of bodily fluids and distribution within the absorbent article.
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
38.
ABSORBENT ARTICLE HAVING A TROUGHED FILM AS A TRANSFER LAYER PROVIDING A COOL FLUID DYNAMIC
An absorbent article having a topsheet, a backsheet and an absorbent core located between the backsheet and the topsheet is provided with an apertured formed film as a transfer layer. The vacuum formed film has a plurality of hollow, three-dimensional protrusions having an aperture on each end thereof and defined by sidewalls that originate on a female side of the film and terminate on a male side of the film and further contains a plurality of linear troughs, the troughs providing pathways for the flow of liquids, gasses and vapors preferentially in the Y axis of the film, and the hollow protrusions providing pathways for the flow of liquids in a Z direction from the male side to the female side and then to the absorbent core, wherein the female side of the film is oriented toward the core and the male side of the film is oriented toward the topsheet,
A61F 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
A61F 13/537 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
39.
LIGHT TRANSMISSIVE STRUCTURES AND FABRICATION METHODS FOR CONTROLLING FAR-FIELD LIGHT DISTRIBUTION
Light transmissive structures include a light transmissive substrate that includes optical microstructures. The optical microstructures have a geometric feature that is configured to reduce glare in light transmitted through the light transmissive structure. Moreover, the plurality of optical microstructures also have a geometric feature that is configured to vary randomly and/or pseudorandomly across the light transmissive substrate so as to diffuse light transmitted through the light transmissive structure. Related fabrication methods are also described.
Both food and non-food crops can be protected using a laminate (10) made from three-dimensional apertured film (11) in combination with reinforcing scrim,. second three-dimensional apertured film (12), a nonwoven web (30) and combinations thereof. The laminates provide the plants with diffused and/or reduced light and can effectively be used to control moisture on or near the plants, or to control weeds by applying the laminates to the soil surrounding the crop.
Various embodiments described herein relate generally to optical beam forming devices made up of arrays of facets, which are discrete refractive elements on the surface of a transmissive or semitransmissive substrate. Such facets may be considered to be microfacets if the individual facets within an array of facets are generally below the range of normal human visual acuity. In a microfaceted optic, an optical element is subdivided up into areas (such as uniformly- spaced squares or random polygons, for example) when viewed from above, and the surface above a given square has a given height above the substrate. The surface has a shape (such as flat or curved) and is tilted in a given direction.
A light transmissive structure such as a light diffuser includes a substrate having optical microstructures. The optical microstructures include at least one feature that varies across the substrate, so as to produce a visible indicia relative to a viewer of the light transmissive structure. Related diffusers and methods of fabrication are also described.
Composite fabrics comprise a nonwoven web, preferably a fully calendared nonwoven web of fusible fibers, and a monolithic breathable polymer layer on at least one surface of the web and have excellent breathability, good abrasion resistance, and offer protection against both blood and viral agents.
An apertured formed film particularly suited for use as a topsheet or transfer layer in an absorbent article comprises at least one thermoplastic olefin polymer and a fatty alcohol in an amount sufficient to increase the hydrophilic affinity of the film.
Composite forming screens comprise a layer of hard rubber with a Shore D hardness of 12-90, preferably 33-90 and most preferably 46-60 and in preferred embodiments, comprise a support layer of plastic or metal bonded to the hard rubber to form a composite. The forming screens may be planar or cylindrical and are provided with a plurality of apertures or through holes and a pattern of fine scale structures. Methods of making the forming screens are also disclosed.
B26F 1/26 - Perforating by non-mechanical means, e.g. by fluid jet
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
B29C 51/22 - Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
B29C 59/06 - Surface shaping, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using vacuum drums
B29C 71/00 - After-treatment of articles without altering their shape; Apparatus therefor
A diffuser is configured to diffuse radiation from multiple light sources. The diffuser includes a substrate having optical structures that exhibit both microvariations and macrovariations along the substrate. For example, an array of microlenses may be provided that include at least one feature that varies as a function of the spacing between the light sources. Lighting systems using these diffusers may also be provided.
Films (10) for use in protecting surfaces are disclosed and comprise at least one release layer (14) and optionally an adhesion layer (12) and/or an intermediate layer, the release layer (14) having a plurality of three-dimensional protrusions (13) that are either formed integral with the release layer or are discrete polymer beads applied to the release layer.
B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
B29C 59/04 - Surface shaping, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
Apertured nonwoven webs are disclosed wherein the apertures in the web are treated with an active substance such that the inner surface of the aperture differs in properties, characteristics or appearance from a surface of the web adjacent to the aperture.
D06M 15/70 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
D06M 13/52 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
Methods of activating bicomponent elastic fiber nonwovens webs and laminates, and the resultant activated bicomponent elastic fiber nonwoven webs and laminates are disclosed, wherein the bicomponent elastic fiber nonwoven webs include a first material and a second material, wherein the first material has a lower yield point than the second material.
Optical microstructures, such as microlenses, are fabricated by rotating a cylindrical platform that includes a radiation sensitive layer thereon, about its axis, while simultaneously axially rastering a laser beam across at least a portion of the radiation sensitive layer. The cylindrical platform is also simultaneously translated axially while it is being rotated. The amplitude of the laser beam is continuously varied while rastering. The optical microstructures that are imaged in the radiation sensitive layer can be developed to provide a master for replicating a microlenses.
An elastic web that can be made breathable upon application of a tensile force such as would be encountered in certain applications, such as in absorbent articles and other hygienic or non-hygienic articles, and bandages is described. Breathability is achieved by insertion into the web of slits whose open area increases upon application of a force on the web acting along the major axis of said slits.
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
53.
Microlens sheets having multiple interspersed anamorphic microlens arrays
Microlens sheets include a first array of anamorphic micolenses on a face of a substrate. The microlenses in the first array are defined by a first parametric model along a direction of the first array. A second array of anamorphic micolenses is also provided on the face of the substrate, and interspersed with the first array. The microlenses in the second array are defined by a second parametric model that is different from the first parametric model, along the direction of the first array.
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 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
Microstructures are fabricated by impinging a radiation beam, such as a laser beam, through a substrate that is transparent to the laser beam, into a negative photoresist layer on the substrate. The negative photoresist layer may be subsequently developed to provide a master for optical and/or mechanical microstructures. Related systems, microstructure products and microstructure masters also are disclosed.
ABSTRACT TREATMENT OF PERFORATED FILM A perforated thermoplastic film with less than ideally shaped tapered capillaries which has an increased liquid flow rate through the tapered capillaries and a method for making such a film, including forming a perforated thermoplastic film having tapered capillaries from a resin into which an effective amount of a polarizable, migrating surfactant has been blended and then treating the perforated thermoplastic film to a corona discharge treatment sufficient to increase the flow rate of liquid through said perforated film and provide a film having a percent run off of from about zero to ten percent.
