CA2576603A1 - Elastomeric nonwoven laminates and process for producing same - Google Patents

Elastomeric nonwoven laminates and process for producing same Download PDF

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Publication number
CA2576603A1
CA2576603A1 CA 2576603 CA2576603A CA2576603A1 CA 2576603 A1 CA2576603 A1 CA 2576603A1 CA 2576603 CA2576603 CA 2576603 CA 2576603 A CA2576603 A CA 2576603A CA 2576603 A1 CA2576603 A1 CA 2576603A1
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CA
Canada
Prior art keywords
orientation
elastomeric
laminate
substrate
bonding surface
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 2576603
Other languages
French (fr)
Other versions
CA2576603C (en
Inventor
Uwe Schneider
Donald Carroll Roe
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
Uwe Schneider
Donald Carroll Roe
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, Uwe Schneider, Donald Carroll Roe filed Critical The Procter & Gamble Company
Publication of CA2576603A1 publication Critical patent/CA2576603A1/en
Application granted granted Critical
Publication of CA2576603C publication Critical patent/CA2576603C/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
    • A61F13/45—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
    • 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
    • B32B5/12—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 characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • 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
    • Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding
    • 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
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1082—Partial cutting bonded sandwich [e.g., grooving or incising]
    • 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.]
    • 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.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • 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.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074—Strand or strand-portions
    • 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.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074—Strand or strand-portions
    • Y10T428/24083—Nonlinear strands or strand-portions
    • 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.]
    • Y10T428/24132—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in different layers or components parallel
    • 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.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities
    • Y10T428/24694—Parallel corrugations
    • 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.]
    • Y10T428/24744—Longitudinal or transverse tubular cavity or cell
    • 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
    • Y10T442/602—Nonwoven fabric comprises an elastic strand or fiber material

Landscapes

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

Abstract

An elastomeric laminate for use in an absorbent article can have a first plurality of elastomeric strands and a second plurality of elastomeric strands bonded to a first substrate. The first plurality of elastomeric strands can be bonded to the first substrate in a first orientation while the second plurality of elastomeric strands is joined to the first substrate in a second orientation. The first and second orientations can be different such that the elastomeric laminate can accommodate tension forces which act on the laminate from different axes. Optionally, a second substrate or a third plurality of elastomeric strands may be added to the elastomeric laminate.

Claims (20)

1. An elastomeric laminate comprising:
an extensible intermediate laminate comprising:
a first substrate having a bonding surface and a face opposite the bonding surface; and a first plurality of elastomeric strands bonded to the bonding surface along a first orientation; and a second plurality of elastomeric strands bonded to the face or the bonding surface of the first substrate of the extensible intermediate laminate along a second orientation, wherein the first orientation differs from and is non-orthogonal to the second orientation.
2. The elastomeric nonwoven laminate of claim 1, wherein the first orientation is at least partially curvilinear.
3. The elastomeric laminate of claim 1, wherein the first orientation or the second orientation is a pre-determined angle from a longitudinal axis, the pre-determined angle ranging from about 0 to about 360 degrees.
4. The elastomeric laminate of claim 1, further comprising a second substrate having a second bonding surface, wherein the second bonding surface of the second substrate is bonded to the first plurality of elastomeric strands or the second plurality of elastomeric strands such that the second substrate is joined to the extensible intermediate laminate in a face to face arrangement.
5. The elastomeric laminate of claim 1, wherein the first orientation is parallel to a longitudinal axis and the extensible intermediate laminate is extensible in a direction parallel to the longitudinal axis.
6. The elastomeric laminate of claim 5, wherein the first plurality of elastomeric strands is pre-strained and bonded to the bonding surface of the first substrate such that the extensible intermediate laminate is extensible.
7. The elastomeric laminate of claim 5, wherein the extensible intermediate laminate is mechanically activated such that the extensible intermediate laminate is extensible,
8. The elastomeric laminate of claim 5, wherein the second orientation of the second plurality of elastomeric strands is at least partially curvilinear.
9. The elastomeric laminate of claim 5, wherein the second orientation is a pre-determined angle from the machine direction, the pre-determined angle ranging from about 0 to about 360 degrees.
10. An elastomeric laminate comprising:
a first extensible intermediate laminate comprising:
a first substrate having a first bonding surface and a first face opposite the bonding surface; and a first plurality of elastomeric strands bonded to the first bonding surface along a first orientation;
a second extensible intermediate laminate comprising:
a second substrate having a second bonding surface and a second face opposite the bonding surface; and a second plurality of elastomeric strands bonded to the second bonding surface along a second orientation, wherein the first extensible intermediate laminate and the second extensible intermediate laminate are joined in a face to face orientation; and a third plurality of elastomeric strands bonded to at least one of the first face of the first substrate, the first bonding surface of the first substrate, the second face of the second substrate, and the second bonding surface of the second substrate, along a third orientation which is different from the first orientation and the second orientation.
11. The elastomeric laminate of claim 10, wherein the first orientation is parallel to a longitudinal axis and the first plurality of elastomeric strands is pre-strained and bonded to the first bonding surface such that the first extensible intermediate laminate is extensible in a direction parallel to the longitudinal axis, and wherein the second orientation is parallel to the longitudinal axis and the second plurality of elastomeric strands is pre-strained and bonded to the second bonding surface such that the second extensible intermediate laminate is extensible in a direction parallel to the longitudinal axis.
12. The elastomeric laminate of claim 11, wherein the third orientation is at least partially curvilinear.
13. The elastomeric laminate of claim 11, wherein the third orientation is a pre-determined angle from a longitudinal axis, the pre-determined angle ranging from about 0 to about 360 degrees.
14, The elastomeric laminate of claim 11, wherein the first substrate and the second substrate have a basis weight in the range of about 10 gsm to about 40 gsm.
15. The elastomeric laminate of claim 10, wherein the first substrate and second substrate are made up of a single substrate comprising a first portion and a second portion, wherein the first portion acts as the first substrate and the second portion acts as the second substrate, wherein the first plurality of elastomeric strands is bonded to the first portion and the second plurality of elastomeric strands is bonded to the second portion, wherein the second portion is disposed on top of the first portion such that the first portion and the second portion are arranged in a face to face orientation, and wherein the third plurality of elastomeric strands is bonded to a face of the first portion or the second portion.
16. The elastomeric laminate of claim 10, wherein the first orientation is parallel to a longitudinal axis and the first extensible intermediate laminate is activated such that the first extensible intermediate laminate is extensible in a direction parallel to the longitudinal axis, and wherein the second orientation corresponds is parallel to the longitudinal axis and the second extensible intermediate laminate is activated such that the second extensible intermediate laminate is extensible in the direction parallel to the longitudinal axis.
17. An absorbent article comprising:
an extensible intermediate laminate comprising:
a first substrate having a bonding surface and a face opposite the bonding surface; and a first plurality of elastomeric strands bonded to the bonding surface along a first orientation; and a second plurality of elastomeric strands bonded to the face or the bonding surface of the first substrate of the extensible intermediate laminate along a second orientation, wherein the first orientation differs from and is non-orthogonal to the second orientation.
18 The absorbent article of claim 17, wherein the first orientation is parallel to a longitudinal axis and the extensible intermediate laminate is extensible in a direction parallel to the longitudinal axis.
19. The absorbent article of claim 18, wherein the second orientation of the second plurality of elastomeric strands is at least partially curvilinear.
20. The absorbent article of claim 18, wherein a strand of the first plurality of elastomeric strands or the second plurality of elastomeric strands comprise discrete portions of elastomeric material.
CA2576603A 2004-08-10 2005-08-10 Elastomeric nonwoven laminates and process for producing same Expired - Fee Related CA2576603C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/915,239 US20060035055A1 (en) 2004-08-10 2004-08-10 Elastomeric nonwoven laminates and process for producing same
US10/915,239 2004-08-10
PCT/US2005/028381 WO2006020690A1 (en) 2004-08-10 2005-08-10 Elastomeric nonwoven laminates and process for producing same

Publications (2)

Publication Number Publication Date
CA2576603A1 true CA2576603A1 (en) 2006-02-23
CA2576603C CA2576603C (en) 2012-05-29

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Family Applications (1)

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CA2576603A Expired - Fee Related CA2576603C (en) 2004-08-10 2005-08-10 Elastomeric nonwoven laminates and process for producing same

Country Status (7)

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US (2) US20060035055A1 (en)
EP (1) EP1776073B1 (en)
JP (1) JP4767953B2 (en)
CN (1) CN101001591B (en)
CA (1) CA2576603C (en)
MX (1) MX2007001703A (en)
WO (1) WO2006020690A1 (en)

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US20060035055A1 (en) 2006-02-16
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CA2576603C (en) 2012-05-29
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JP2008509826A (en) 2008-04-03
US20110030883A1 (en) 2011-02-10
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CN101001591A (en) 2007-07-18
JP4767953B2 (en) 2011-09-07

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