CA2654619A1 - Biaxially stretchable outer cover for an absorbent article - Google Patents

Biaxially stretchable outer cover for an absorbent article Download PDF

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Publication number
CA2654619A1
CA2654619A1 CA 2654619 CA2654619A CA2654619A1 CA 2654619 A1 CA2654619 A1 CA 2654619A1 CA 2654619 CA2654619 CA 2654619 CA 2654619 A CA2654619 A CA 2654619A CA 2654619 A1 CA2654619 A1 CA 2654619A1
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CA
Canada
Prior art keywords
fibers
layer
outer cover
elastomeric
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2654619
Other languages
French (fr)
Other versions
CA2654619C (en
Inventor
Jean-Philippe Marie Autran
Donald Carroll Roe
Terrill Alan Young
Joan Helen Mooney
Fred Naval Desai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
The Procter & Gamble Company
Jean-Philippe Marie Autran
Donald Carroll Roe
Terrill Alan Young
Joan Helen Mooney
Fred Naval Desai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Procter & Gamble Company, Jean-Philippe Marie Autran, Donald Carroll Roe, Terrill Alan Young, Joan Helen Mooney, Fred Naval Desai filed Critical The Procter & Gamble Company
Publication of CA2654619A1 publication Critical patent/CA2654619A1/en
Application granted granted Critical
Publication of CA2654619C publication Critical patent/CA2654619C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F13/51478—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51456—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties
    • A61F13/51464—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being stretchable or elastomeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00—Personal care
    • B32B2555/02—Diapers or napkins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/601—Nonwoven fabric has an elastic quality
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/603—Including strand or fiber material precoated with other than free metal or alloy
    • Y10T442/607—Strand or fiber material is synthetic polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Textile Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

An outer cover for use with an absorbent article having a layer of nonwoven fibrous material and optionally including a polymeric layer laminated or printed onto the layer of nonwoven fibrous material. The outer cover includes at least one plastic component and at least one elastic component in the nonwoven fibrous material and/or optional polymeric layer. The outer cover can have different structural combinations of spunbond fibers, meltblown fibers, and/or nanofibers. The combination of plastic and elastic components results in an outer cover that has favorable mechanical, physical, and aesthetic properties. The outer cover can be rendered either uniaxially or biaxially stretchable via a mechanical activation process.

Claims (45)

1. An outer cover for an absorbent article, the outer cover comprising:
(a) a first layer of nonwoven fibers having a first number-average fiber diameter, the nonwoven fibers of the first layer selected from the group consisting of elastomeric fibers, plastic fibers, a mixture of elastomeric fibers and plastic fibers, bi-component fibers, plastoelastic blend fibers, and combinations thereof, the bi-component fibers and the plastoelastic blend fibers each comprising an elastomeric component and a plastic component;
(b) a second layer of fibers having a second number-average fiber diameter less than the first number-average fiber diameter, the second layer of fibers disposed on the first layer of nonwoven fibers; and (c) optionally, a polymeric layer disposed on the first or second layer of fibers, the polymeric layer selected from the group consisting of an elastomeric layer, a plastic layer, and a plastoelastic blend layer comprising an elastomeric component and a plastic component;
wherein:
(i) the outer cover comprises at least one of the elastomeric fibers, the elastomeric component, and the elastomeric layer;
(ii) the outer cover comprises at least one of the plastic fibers, the plastic component, and the plastic layer; and, (iii) the elastomeric fibers, the elastomeric component, and the elastomeric layer each independently comprises an elastomer selected from the group consisting of an elastomeric polypropylene and combinations of an etastomeric polypropylene and a styrenic block copolymer.
2. The outer cover of claim 1, wherein the first fiber layer has a peak elongation of greater than about 100%.
3. The outer cover of claim 1, wherein the first fiber layer has a peak elongation of greater than about 120%.
4. The outer cover of claim 1, wherein the first fiber layer has a peak elongation of greater than about 150%.
5. The outer cover of claim 1, wherein the outer cover does not include the polymeric layer.
6. The outer cover of claim 1, wherein the polymeric layer is present as a film laminated to the first layer of nonwoven fibers.
7. The outer cover of claim 6, wherein:
the nonwoven fibers of the first layer are selected from the group consisting of a mixture of elastomeric fibers and plastic fibers, bi-component fibers, plastoelastic blend fibers, and combinations thereof; and, the polymeric layer is the plastic layer.
8. The outer cover of claim 6, wherein:
the nonwoven fibers of the first layer are selected from the group consisting of a mixture of elastomeric fibers and plastic fibers, bi-component fibers, plastoelastic blend fibers, and combinations thereof; and, the polymeric layer is the plastoelastic blend layer.
9. The outer cover of claim 6, wherein the nonwoven fibers of the first layer are the plastic fibers, and the polymeric layer is the plastoelastic blend layer.
10. The outer cover of claim 1, wherein the nonwoven fibers of the first layer are the plastic fibers, and the polymeric layer is present in the form of the elastomeric layer.
11. The outer cover of claim 10, wherein the elastomeric layer is printed onto the first layer of nonwoven fibers.
12. The outer cover of claim 11, wherein the elastomeric layer is printed by a printing process selected from the group consisting of intaglio printing, relief printing, planographic printing, and ink jet printing.
13. The outer cover of claim 1, wherein the first number-average fiber diameter is about µm to about 30 µm and the second number-average fiber diameter is about 1 µm to about 10 µm.
14. The outer cover of claim 1, wherein the first layer of nonwoven fibers comprises spunbond fibers and the second layer of fibers comprises meltblown fibers.
15. The outer cover of claim 1, wherein the first number-average fiber diameter is about 10 microns to about 30 microns and the second number-average fiber diameter is about 0.1 microns to about 1 microns.
16. The outer cover of claim 1, wherein the first layer of nonwoven fibers comprises spunbond fibers and the second layer of fibers comprises nanofibers.
17. The outer cover of claim 1, further comprising a third layer of fibers having a third number-average fiber diameter, the third layer of fibers disposed on the second layer of fibers, wherein the second number-average fiber diameter is greater than the third number-average fiber diameter.
18. The outer cover of claim 1, wherein the elastomer comprises an elastomeric polypropylene selected from the group consisting of an elastic random poly(propylene/olefin) copolymer, an isotactic polypropylene containing stereoerrors, an isotactic/atactic polypropylene block copolymer, an isotactic polypropylene/random poly(propylene/olefin) copolymer block copolymer, a stereoblock elastomeric polypropylene, a syndiotactic polypropylene block poly(ethylene-co-propylene) block syndiotactic polypropylene triblock copolymer, an isotactic polypropylene block regioirregular polypropylene block isotactic polypropylene triblock copolymer, a polyethylene random (ethylene/olefin) copolymer block copolymer, a reactor blend polypropylene, a very low density polypropylene, a metallocene polypropylene, and combinations thereof.
19. The outer cover of claim 18, wherein the elastomeric polypropylene comprises an elastic random poly(propylene/olefin) copolymer.
20. The outer cover of claim 1, wherein the elastomer comprises a styrenic block copolymer selected from the group consisting of styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-butadiene/isoprene-styrene, and combinations thereof.
21. The outer cover of claim 1, wherein the plastic fibers, the plastic component, and the plastic layer each independently comprises at least one of a polyolefin, ethylene vinyl acetate, ethylene ethyl acrylate, ethylene acrylic acid, ethylene methyl acrylate, ethylene butyl acrylate, and combinations thereof.
22. The outer cover of claim 21, wherein the plastic fibers, the plastic component, and the plastic layer each independently comprises a polyolefin selected from the group consisting of high density polyethylene, linear low density polyethylene, very low density polyethylene, a polypropylene homopolymer, a plastic random poly(propylene/olefin) copolymer, syndiotactic polypropylene, polybutene, an impact copolymer, a polyolefin wax, and combinations thereof.
23. The outer cover of claim 22, wherein the plastic component and the plastic layer each independently comprises a polyolefin wax selected from the group consisting of a microcrystalline wax, low molecular weight polyethylene wax, low molecular weight polypropylene wax, and combinations thereof.
24. The outer cover of claim 6, wherein the outer cover has a moisture vapor transmission rate of about 1,000 g/m2-day to about 10,000 g/m2-day.
25. The outer cover of claim 6, wherein the film further comprises filler particles.
26. The outer cover of claim 1, wherein the outer cover has an opacity of at least about 65%.
27. The outer cover of claim 1, wherein the outer cover has a hydrostatic head pressure of about 80 mbar or less.
28. The outer cover of claim 1, wherein the outer cover has a first cycle %
set of about 20%
or less as determined by subjecting an unactivated sample of the outer cover to the hysteresis test.
29. The outer cover of claim 1, wherein the outer cover has a tensile strain at breaking of about 200% to about 600%.
30. The outer cover of claim 1, wherein the outer cover has a cross direction, and the outer cover has been activated in the cross direction.
31. The outer cover of claim 30, wherein the outer cover has a machine direction, and the outer cover has been activated in the machine direction.
32. The outer cover of claim 1, wherein the outer cover has been activated in at least one region and remains unactivated in at least one other region.
33. The outer cover of claim 6, wherein the polymeric layer is an apertured elastomeric layer having one or more apertures.
34. The outer cover of claim 33, wherein the apertured elastomeric layer has an open area of from about 2% to about 20% of the total surface area of the elastomeric layer.
35. An absorbent article comprising:
(a) a topsheet;
(b) the outer cover of claim 1; and, (c) an absorbent core disposed between the topsheet and the outer cover.
36. An outer cover for an absorbent article, the outer cover comprising:
(a) a first layer of nonwoven fibers, the nonwoven fibers of the first layer selected from the group consisting of elastomeric fibers, plastic fibers, a mixture of elastomeric fibers and plastic fibers, bi-component fibers, plastoelastic blend fibers, and combinations thereof, wherein each of the bi-component fibers and the plastoelastic blend fibers comprises an elastomeric component and a plastic component; and, (b) optionally, a polymeric layer disposed on the first layer of nonwoven fibers, the polymeric layer selected from the group consisting of an elastomeric layer, a plastic layer, and a plastoelastic blend layer comprising an elastomeric component and a plastic component;
wherein:
(i) the outer cover comprises at least one of the elastomeric fibers, the elastomeric component, and the elastomeric layer;
(ii) the outer cover comprises at least one of the plastic fibers, the plastic component, and the plastic layer; and (iii) the elastomeric fibers, the elastomeric component, and the elastomeric layer each independently comprises an elastomer selected from the group consisting of an elastomeric polypropylene, a styrenic block copolymer, and combinations thereof.
37. The outer cover of claim 36, wherein the outer cover has a first cycle %
set of about 20%
or less as determined by subjecting an unactivated sample of the outer cover to the hysteresis test.
38. The outer cover of claim 36, wherein the opacity of the outer cover is at least about 65%.
39. An absorbent article comprising:
(a) a topsheet;
(b) the outer cover of claim 36; and, (c) an absorbent core disposed between the topsheet and the outer cover.
40. An outer cover for an absorbent article, the outer cover comprising:
a first layer comprising spunbond fibers, the fibers selected from the group consisting of a mixture of elastomeric fibers and plastic fibers, bi-component fibers, and plastoelastic blend fibers, wherein each of the bi-component fibers and the plastoelastic blend fibers comprises an elastomeric component and a plastic component;
a second layer comprising meltblown elastomeric fibers, the second layer disposed on the first layer;
a third layer comprising meltblown plastoelastic fibers, the third layer disposed between the second layer and a fourth layer; and, the fourth layer comprising spunbond fibers, the fibers selected from the group consisting of plastic fibers and plastoelastic blend fibers, the fourth layer disposed on the third layer.
41. The outer cover of claim 40, further comprising a fifth layer, the fifth layer including nanofibers selected from the group consisting of elastomeric fibers and plastoelastic blend fibers.
42. The outer cover of claim 40, further comprising a fifth layer comprising carded fibers, the fibers selected from the group consisting of plastic fibers and plastoelastic blend fibers, the fifth layer disposed on the fourth layer.
43. The outer cover of claim 41, wherein:
the first and fifth layers each independently has a basis weight of about 10 g/m2 to about 50 g/m2;
the second, third, and fourth layers each independently has a basis weight of about 1 g/m2 to about 7 g/m2; and, the outer cover has a net basis weight of about 25 g/m2 to about 100 g/m2.
44. The outer cover of claim 41, wherein at least one of the layers is pre-stretched prior to an adjacent layer being disposed on the pre-stretched layer.
45. An absorbent article comprising:
(a) a topsheet;
(b) the outer cover of claim 41, and, (c) an absorbent core disposed between the topsheet and the outer cover.
CA 2654619 2006-06-07 2007-06-06 Biaxially stretchable outer cover for an absorbent article Expired - Fee Related CA2654619C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US81158006P 2006-06-07 2006-06-07
US60/811,580 2006-06-07
US11/599,829 2006-11-15
US11/599,829 US9072633B2 (en) 2006-06-07 2006-11-15 Biaxially stretchable outer cover for an absorbent article
PCT/IB2007/052138 WO2007141745A2 (en) 2006-06-07 2007-06-06 Biaxially stretchable outer cover for an absorbent article

Publications (2)

Publication Number Publication Date
CA2654619A1 true CA2654619A1 (en) 2007-12-13
CA2654619C CA2654619C (en) 2012-08-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2654619 Expired - Fee Related CA2654619C (en) 2006-06-07 2007-06-06 Biaxially stretchable outer cover for an absorbent article

Country Status (6)

Country Link
US (1) US9072633B2 (en)
EP (1) EP2023876A2 (en)
JP (1) JP4987972B2 (en)
CA (1) CA2654619C (en)
MX (1) MX2008015629A (en)
WO (1) WO2007141745A2 (en)

Families Citing this family (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010018579A1 (en) 1998-12-18 2001-08-30 Walter Klemp Disposable absorbent garment having stretchable side waist regions
US9018112B2 (en) * 2003-11-18 2015-04-28 Exxonmobil Chemicals Patents Inc. Extensible polypropylene-based nonwovens
US7867211B2 (en) 2005-05-23 2011-01-11 Rusl, Llc System comprising thong-shaped holder and absorbent article
US7846145B2 (en) 2005-11-08 2010-12-07 Rusl, Llc Body conforming textile holder and absorbent article
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US20070287348A1 (en) 2007-12-13
WO2007141745A3 (en) 2008-02-14
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WO2007141745A2 (en) 2007-12-13
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