CA2654824A1 - Stretch laminate, method of making, and absorbent article - Google Patents

Stretch laminate, method of making, and absorbent article Download PDF

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Publication number
CA2654824A1
CA2654824A1 CA 2654824 CA2654824A CA2654824A1 CA 2654824 A1 CA2654824 A1 CA 2654824A1 CA 2654824 CA2654824 CA 2654824 CA 2654824 A CA2654824 A CA 2654824A CA 2654824 A1 CA2654824 A1 CA 2654824A1
Authority
CA
Canada
Prior art keywords
layer
elastomer film
mpa
stretch laminate
absorbent article
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 2654824
Other languages
French (fr)
Other versions
CA2654824C (en
Inventor
Todd Leon Mansfield
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
Todd Leon Mansfield
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, Todd Leon Mansfield filed Critical The Procter & Gamble Company
Publication of CA2654824A1 publication Critical patent/CA2654824A1/en
Application granted granted Critical
Publication of CA2654824C publication Critical patent/CA2654824C/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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
    • 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
    • A61F13/45—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
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • 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]
    • Y10T442/659—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]
    • Y10T442/681—Spun-bonded nonwoven fabric

Abstract

A stretch laminate includes a first layer including an elastomer film, the first layer having a surface, and a second layer including a nonwoven material, the second layer having a basis weight of less than about 25 gsm and a surface that is attached to the surface of the first layer. The elastomer film has a strength of an engineering tensile strength, at an engineering strain rate of about 600/s, of at least one of about greater than about 14 MPa for a plain specimen or about greater than about 7 MPa for a notched specimen. A method of making the stretch laminate and an absorbent article having at least one region defined by the stretch laminate are also provided.

Claims (22)

1. A stretch laminate comprising:
a first layer comprising an elastomer film, the first layer having a surface;
and a second layer comprising a nonwoven material, the second layer having a basis weight of less than about 25 gsm and a surface that is attached to the surface of the first layer, the elastomer film having an engineering tensile strength, at an engineering strain rate of about 600/s, of at least one of about greater than about 14 MPa for a plain specimen or about greater than about 7 MPa for a notched specimen.
2. The stretch laminate according to claim 1, wherein the elastomer film has an engineering tensile strength, at an engineering strain rate of about 600/s, of greater than about 20 MPa for a plain specimen.
3. The stretch laminate according to claim 1, wherein the elastomer film has an engineering tensile strength, at an engineering strain rate of about 600/s, of greater than about 15 MPa for a notched specimen.
4. The stretch laminate according to claim 1, wherein the elastomer film has an engineering tensile strength, at an engineering strain rate of about 600/s, of greater than about 20 MPa for a plain specimen and of greater than about 15 MPa for a notched specimen.
5. The stretch laminate according to claim 1, wherein the nonwoven material comprises a carded or a spunbound nonwoven material.
6. The stretch laminate according to claim 1, comprising a third layer comprising a nonwoven material, the third layer having a surface that is attached to the first layer on a surface opposite the second layer.
7. The stretch laminate according to claim 6, comprising adhesive disposed between the first layer and the second layer, and disposed between the first layer and the third layer.
8. A method of making a stretch laminate, the method comprising:
providing an elastomer film, the elastomer film having an engineering tensile strength, at an engineering strain rate of about 600/s, of at least one of about greater than about 14 MPa for a plain specimen or about greater than about 7 MPa for a notched specimen;
attaching a nonwoven layer having a basis weight of less than about 25 gsm to the elastomer film to form an assembly; and activating the assembly of the elastomer film and the nonwoven layer.
9. The method according to claim 8, wherein attaching the nonwoven layer to the elastomer film comprises:
applying adhesive to one of the elastomer film or the nonwoven layer; and disposing the one of the elastomer film or the nonwoven layer on the other of the elastomer film or the nonwoven layer.
10. The method according to claim 8, comprising:
providing another nonwoven layer; and attaching the another nonwoven layer to the elastomer film to form the assembly.
11. The method according to claim 10, wherein attaching the another nonwoven layer to the elastomer film comprises:
applying adhesive to one of the elastomer film or the another nonwoven layer;
and disposing the one of the elastomer film or the another nonwoven layer on the other of the elastomer film or the another nonwoven layer.
12. The method according to claim 8, wherein activating the assembly comprises ring rolling the assembly.
13. An absorbent article having a waist region and a crotch region, the article comprising:
a backsheet having a longitudinal axis;
a topsheet attached to the backsheet and having a body-facing surface;
an absorbent core disposed between the backsheet and the topsheet; and a stretch laminate defining at least one region of the absorbent article, the stretch laminate comprising:
a first layer comprising an elastomer film, the first layer having a surface;
and a second layer comprising a nonwoven material, the second layer having a basis weight of less than about 25 gsm and a surface that is attached to the surface of the first layer, the elastomer film having a strength of an engineering tensile strength, at an engineering strain rate of about 600/s, of at least one of about greater than about 14 MPa for a plain specimen or about greater than about 7 MPa for a notched specimen.
14. The absorbent article according to claim 13, wherein the elastomer film has an engineering tensile strength, at an engineering strain rate of about 600/s, of greater than about 20 MPa for a plain specimen.
15. The absorbent article according to claim 13, wherein the elastomer film has an engineering tensile strength, at an engineering strain rate of about 600/s, of greater than about 15 MPa for a notched specimen.
16. The absorbent article according to claim 13, wherein the elastomer film has an engineering tensile strength, at an engineering strain rate of about 600/s, of greater than about 20 MPa for a plain specimen and of greater than about 15 MPa for a notched specimen.
17. The absorbent article according to claim 13, wherein the nonwoven material comprises a carded or a spunbound nonwoven material.
18. The absorbent article according to claim 13, wherein the stretch laminate comprises a third layer comprising a nonwoven material, the third layer having a surface that is attached to the first layer on a surface opposite the second layer.
19. The absorbent article according to claim 18, wherein the stretch laminate comprises adhesive disposed between the first layer and the second layer, and disposed between the first layer and the third layer.
20. The absorbent article according to claim 13, wherein the at least one region comprises a waist region, and the stretch laminate is attached to the backsheet.
21. The absorbent article according to claim 13, wherein the at least one region comprises a side flap, and the stretch laminate is attached to the backsheet.
22. The absorbent article according to claim 21, wherein a fastener is attached to the side flap.
CA 2654824 2006-06-09 2007-06-06 Stretch laminate, method of making, and absorbent article Expired - Fee Related CA2654824C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US81220706P 2006-06-09 2006-06-09
US60/812,207 2006-06-09
PCT/IB2007/052137 WO2007141744A1 (en) 2006-06-09 2007-06-06 Stretch laminate, method of making, and absorbent article

Publications (2)

Publication Number Publication Date
CA2654824A1 true CA2654824A1 (en) 2007-12-13
CA2654824C CA2654824C (en) 2012-01-10

Family

ID=38626945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2654824 Expired - Fee Related CA2654824C (en) 2006-06-09 2007-06-06 Stretch laminate, method of making, and absorbent article

Country Status (9)

Country Link
US (3) US8177766B2 (en)
EP (2) EP2026726A1 (en)
JP (1) JP2009537350A (en)
CN (1) CN101460125B (en)
CA (1) CA2654824C (en)
ES (1) ES2453045T3 (en)
MX (1) MX2008015632A (en)
PL (1) PL2202062T3 (en)
WO (1) WO2007141744A1 (en)

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US20140066877A1 (en) 2014-03-06

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