Inverse textured web

• US 20040229008A1
• Filed: 12/16/2003
• Published: 11/18/2004
• Est. Priority Date: 12/20/2002
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Hoying, Jody Lynn
• Granted Patent: US 7,648,752 B2
• Time in Patent Office: Days
• US Class Current: 428/92
• CPC Class Codes: A44B 18/0011 Female or loop elements A44B18/0007 takes precedence
• CPC Class Codes: A47K 2010/3266 Wet wipes
• CPC Class Codes: A61F 13/15707 Mechanical treatment, e.g. notching, twisting, compressing, shaping
• CPC Class Codes: A61F 13/15731 Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
• CPC Class Codes: A61F 13/2068 Tampons made from several layers A61F13/2065, A61F13/206 take precedence
• CPC Class Codes: A61F 13/51113 comprising an additive, e.g. lotion or odour control A61F13/51108 takes precedence
• CPC Class Codes: A61F 13/51121 characterised by the material
• CPC Class Codes: A61F 13/512 characterised by its apertures, e.g. perforations
• CPC Class Codes: A61F 13/51305 having areas of different permeability
• CPC Class Codes: A61F 13/51476 being three-dimensional, e.g. embossed, textured, pleated, or with three-dimensional features, like gathers or loops
• CPC Class Codes: A61F 13/51478 being a laminate, e.g. multi-layered or with several layers
• CPC Class Codes: A61F 13/5148 having an impervious inner layer and a cloth-like outer layer
• CPC Class Codes: A61F 13/51484 being inhomogeneous in the plane of the sheet, i.e. having zones of different properties or structures
• CPC Class Codes: A61F 13/53436 having an undulated or corrugated cross-section
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61F 2013/1543 with a density gradient in the horizontal plane
• CPC Class Codes: A61F 2013/15512 with specific hydrophilicity
• CPC Class Codes: A61F 2013/51007 characterized by the orientation of fibres
• CPC Class Codes: A61F 2013/51156 having integrally attached
• CPC Class Codes: A61F 2013/51165 with the combination of films and nonwovens
• CPC Class Codes: A61F 2013/51178 : with the combination of nonwoven webs
• CPC Class Codes: A61F 2013/5128 : characterized by open targets or acquisitions or vulnerability zones
• CPC Class Codes: A61F 2013/51344 : with pile webs or velvet-like tissues
• CPC Class Codes: A61F 2013/51355 : for improving fluid flow
• CPC Class Codes: A61F 2013/51366 : with hydrophilic lower face
• CPC Class Codes: A61F 2013/51372 : with valve or valve-like upper layer; Tapered capillary structures
• CPC Class Codes: A61F 2013/5386 : by the fibre orientation in the z plane or vertical direction
• CPC Class Codes: B29C 55/18 : by squeezing between surfaces, e.g. rollers
• CPC Class Codes: B32B 2307/728 : Hydrophilic
• CPC Class Codes: B32B 2555/02 : Diapers or napkins
• CPC Class Codes: B32B 27/12 : next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/32 : comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 3/266 : characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 3/30 : characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs apertured layer B32B3/266; layer with cavities or internal voids B32B3/26
• CPC Class Codes: B32B 5/022 : Non-woven fabric
• CPC Class Codes: B32B 5/06 : characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
• CPC Class Codes: B32B 5/08 : the fibres or filaments of a layer being of different substances , e.g. conjugate fibres, mixture of different fibres
• CPC Class Codes: B32B 5/26 : another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: D04H 11/08 : formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking needling machines D04H18/00
• CPC Class Codes: Y10T 428/23914 : Interlaminar
• CPC Class Codes: Y10T 428/23929 : Edge feature or configured or discontinuous surface
• CPC Class Codes: Y10T 428/23943 : Flock surface
• CPC Class Codes: Y10T 428/2395 : Nap type surface
• CPC Class Codes: Y10T 428/23957 : Particular shape or structure of pile
• CPC Class Codes: Y10T 428/23964 : U-, V-, or W-shaped or continuous strand, filamentary material
• CPC Class Codes: Y10T 428/24289 : Embedded or interlocked
• CPC Class Codes: Y10T 428/24298 : Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
• CPC Class Codes: Y10T 428/24314 : Slit or elongated
• CPC Class Codes: Y10T 428/24322 : Composite web or sheet
• CPC Class Codes: Y10T 428/24331 : including nonapertured component
• CPC Class Codes: Y10T 428/24339 : Keyed
• CPC Class Codes: Y10T 428/24347 : From both sides
• CPC Class Codes: Y10T 428/24612 : Composite web or sheet
• CPC Class Codes: Y10T 428/2967 : Synthetic resin or polymer
• CPC Class Codes: Y10T 442/611 : Cross-sectional configuration of strand or fiber material is other than circular
• CPC Class Codes: Y10T 442/637 : Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
• CPC Class Codes: Y10T 442/659 : Including an additional nonwoven fabric
• CPC Class Codes: Y10T 442/66 : Additional nonwoven fabric is a spun-bonded fabric
• CPC Class Codes: Y10T 442/666 : Mechanically interengaged by needling or impingement of fluid [e.g., gas or liquid stream, etc.]
• CPC Class Codes: Y10T 442/668 : Separate nonwoven fabric layers comprise chemically different strand or fiber material
• CPC Class Codes: Y10T 442/674 : Nonwoven fabric with a preformed polymeric film or sheet
• CPC Class Codes: Y10T 442/676 : Vinyl polymer or copolymer sheet or film [e.g., polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, etc.]

Abstract

A composite web adapted for use as a component in a disposable absorbent article is disclosed. The composite web comprises a first fibrous layer and a second layer, the first and second layers each comprising a body-facing side and a garment-facing side and are disposed in a face to face relationship to form a laminate. The first fibrous layer comprises a fibrous web of randomly oriented fibers with respect to an X-Y plane, and a plurality of discrete regions of fiber reorientation at least on the body-facing side thereof, and a plurality of fibers having portions reoriented in a direction substantially orthogonal to the X-Y plane and extending toward the garment-facing side.

Claims

1. A composite web adapted for use as a component in a disposable absorbent article, said composite web comprising a first fibrous layer and a second layer, said first and second layers each comprising a body-facing side and a garment-facing side and being disposed in a face to face relationship to form a laminate, said first fibrous layer comprising a fibrous web of randomly oriented fibers with respect to an X-Y plane, and comprising a plurality of discrete regions of fiber reorientation at least on said body-facing side, and comprising a plurality of fibers having portions reoriented in a direction substantially orthogonal to said X-Y plane and extending toward said garment-facing side of said second layer.

2. The composite web of claim 1, wherein each said discrete region has a linear orientation defining a longitudinal axis in said X-Y plane.

3. The composite web of claim 1, wherein said second layer is a fibrous layer.

4. The composite web of claim 1 wherein said second layer is a polymer film layer.

5. The composite web of claim 4, wherein said polymer film layer is apertured.

6. The composite web of claim 3, wherein the first fibrous layer or the second fibrous layer are nonwoven webs comprising fibers that differ in one or more properties selected from the group consisting of:

basis weight, caliper, fiber type, fiber size, fiber surface energy, and hydrophobicity.

7. The composite web of claim 6, wherein the first fibrous layer or the second fibrous layer is chosen from the group consisting of, an airlaid nonwoven web, a spunbond nonwoven web, a meltblown nonwoven web, and a carded nonwoven web.

8. The composite web of claim 1, wherein said plurality of discrete regions is uniformly distributed on said composite web.

9. The composite web of claim 6, wherein said fibers of either said first or second layer comprise polymers selected from the group consisting of polyethylene, polypropylene, polyester, and blends thereof.

10. The composite web of claim 6, wherein said fibers of either said first or second layer comprise bicomponent fibers.

11. The composite web of claim 6, wherein said fibers of either said first or second layer comprise non-round fibers.

12. The composite web of claim 1, wherein fibers having portions reoriented in a direction substantially orthogonal to said X-Y plane and extending toward said garment-facing side extend through said second precursor web.

13. The composite web of claim 1, wherein fibers having portions reoriented in a direction substantially orthogonal to said X-Y plane and extending toward said garment-facing side do not extend through said second precursor web.

14. A topsheet for a disposable absorbent article, the topsheet comprising a first fibrous layer and a second layer, said first and second layers each comprising a body-facing side and a garment-facing side and being disposed in a face to face relationship to form a laminate, said first fibrous layer comprising a fibrous web of randomly oriented fibers with respect to an X-Y plane, and comprising a plurality of discrete regions of fiber reorientation at least on said body-facing side, and comprising a plurality of fibers having portions reoriented in a direction substantially orthogonal to said X-Y plane and extending toward said garment-facing side of said second layer.

15. An absorbent core for a disposable absorbent article, the absorbent core comprising a first fibrous layer and a second layer, said first and second layers each comprising a body-facing side and a garment-facing side and being disposed in a face to face relationship to form a laminate, said first fibrous layer comprising a fibrous web of randomly oriented fibers with respect to an X-Y plane, and comprising a plurality of discrete regions of fiber reorientation at least on said body-facing side, and comprising a plurality of fibers having portions reoriented in a direction substantially orthogonal to said X-Y plane and extending toward said garment-facing side of said second layer.