WO2000029655B1 - Bicomponent nonwoven webs containing adhesive and a third component - Google Patents

Bicomponent nonwoven webs containing adhesive and a third component

Info

Publication number
WO2000029655B1
WO2000029655B1 PCT/US1999/025877 US9925877W WO0029655B1 WO 2000029655 B1 WO2000029655 B1 WO 2000029655B1 US 9925877 W US9925877 W US 9925877W WO 0029655 B1 WO0029655 B1 WO 0029655B1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven web
bicomponent filaments
thermoplastic
web composite
filaments
Prior art date
Application number
PCT/US1999/025877
Other languages
French (fr)
Other versions
WO2000029655A1 (en
Inventor
Kevin Edward Smith
Bryan David Haynes
Justin Max Duellman
Ann Louise Mccormack
Jeffrey Lawrence Mcmanus
Charles Allen Smith
Debra Jean Mcdowall
Samuel Edward Marmon
Christopher Cosgrove Creagan
Xin Ning
David Lewis Myers
Darryl Franklin Clark
Original Assignee
Kimberly Clark Co
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 Kimberly Clark Co filed Critical Kimberly Clark Co
Priority to AU14648/00A priority Critical patent/AU1464800A/en
Publication of WO2000029655A1 publication Critical patent/WO2000029655A1/en
Publication of WO2000029655B1 publication Critical patent/WO2000029655B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—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 thermoplastic yarns or filaments produced by welding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—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 thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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]
    • Y10T442/637—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
    • Y10T442/638—Side-by-side multicomponent 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]
    • Y10T442/68—Melt-blown 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]
    • Y10T442/681—Spun-bonded 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]
    • Y10T442/696—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]
    • Y10T442/699—Including particulate material other than strand or fiber material

Abstract

An improved nonwoven web composite is formed by combining bicomponent thermoplastic filaments having adhesive properties with a component selected from other fibers and particles. The bicomponent filaments include distinct regions of first and second incompatible polymers across a cross-section of individual filaments. After the bicomponent filaments are combined with the other fibers and/or particles, the adhesive properties of the bicomponent filaments result in a web or matrix of filaments having improved ability to entrap, ensnare and contain the other fibers and/or particles within the web or matrix. The nonwoven web composite is particularly useful for making absorbent articles, which require stability and optimum levels of absorbent fibers and/or particles.

Claims

AMENDED CLAIMS
[received by the International Bureau on 12 June 2000 (12.06.00); original claims 1 , 31 and 46 amended; remaining claims unchanged (3 pages)]
1. A nonwoven web composite, comprising: a matrix of substantially continuous thermoplastic bicomponent filaments having adhesive properties, including a first theτmoplastic polymer and a second thermoplastic polymer arranged in distinct zones across a cross-section of individual bicomponent filaments,- and an absorbent third component contained within the matrix, the third component selected from the group consisting of absorbent fibers, absorbent particles, and combinations thereof; wherein the adhesive properties of the bicomponent filaments facilitate the containment of the third component.
2. The nonwoven web composite of Claim 1, further comprising thermoplastic filaments without adhesive properties.
3. The nonwoven web composite of Claim 1, wherein the thermoplastic bicomponent filaments comprise spunbond filaments.
4. The nonwoven web composite of Claim 1 , wherein the theremoplastic bicomponent filaments comprise meltblown filaments.
5. The nonwoven web composite of Claim 1 , wherein the thermoplastic bicomponent filaments comprise spunbond filaments and meltblown filaments.
6. The nonwoven web composite of Claim 1 , wherein the thermoplastic bicomponent filaments are arranged in a side-by-side configuration.
7. The nonwoven web composite of Claim 1, wherein the thermoplastic bicomponent filaments are arranged in a sheath-core configuration.
8. The nonwoven web composite of Claim 1, wherein the thermoplastic bicomponent filaments are arranged in an islands-iπ-the-sea configuration.
27
AMENDED SHEET {ARTICLE 19}
28. The nonwoven web composite of Claim 1 , comprising about 3-95% by weight of the thermoplastic bicomponent filaments and about 5-97% by weight of the third component.
29. The nonwoven web composite of Claim 1 , comprising about 5-65% by weight of the thermoplastic bicomponent filaments and about 35-95% by weight of the third component,
30. The nonwoven web composite of Claim 1 , comprising about 5-50% by weight of the thermoplastic bicomponent filaments and about 50-95% by weight of the third component.
31. A nonwoven web composite, comprising: a matrix of substantially continuous thermoplastic bicomponent filaments including at least one adhesive polymer; and an absorbent third component contained within the matrix, selected from the group consisting of absorbent fibers, absorbent particles, and combinations thereof; wherein the adhesive polymer facilitates the containment of the third component.
32. The nonwoven web composite of Claim 31 , wherein the bicomponent filaments comprise first and second thermoplastic polymers arranged in distinct zones across a cross-section of individual bicomponent filaments; and one of the first and second thermoplastic polymers comprises the adhesive polymer.
33. The nonwoven web composite of Claim 31 , wherein the bicomponent filaments comprise first and second thermoplastic polymers arranged in distinct zones across a cross-section of individual bicomponent filaments; and the adhesive polymer is applied to another surface of the bicomponent filaments, and is in addition to the first and second thermoplastic polymers.
28 O 00/29655
44. The nonwoven web composite of Claim 31, wherein the third component comprises a superabsorbent material.
45. The nonwoven web composite of Claim 31, wherein the third component comprises pulp fibers and a superabsorbent material.
46. An absorbent article, comprising: a nonwoven web composite including a matrix of substantially continuous thermoplastic bicomponent filaments having adhesive properties and an absorbent material within the matrix; the bicomponent filaments including first and second thermoplastic polymers arranged in distinct zones across a cross-section of individual bicomponent filaments; the absorbent material selected from the group consisting of fibers, particles, and combinations thereof.
47. The absorbent article of Claim 46, wherein the absorbent material comprises pulp fibers.
48. The absorbent article of Claim 46, wherein the absorbent material comprises a superabsorbent.
49. The absorbent article of Claim 46, wherein the absorbent material comprises a combination of pulp fibers and superabsorbent.
50. The absorbent article of Claim 46, comprising a wipe.
51. The absorbent article of Claim 46, comprising a diaper.
52. The absorbent article of Claim 46, comprising underpants.
29 STATEMENT UNDER ARTICLE 19(1)
Claims 2-30, 32-45, and 47-57 remain the same as originally filed. Original claims 1, 31 and 46 have been deleted and replaced with new claims 1, 31, and 46. Applicant is submitting replacement pages 1 , 23 and 25.
30
PCT/US1999/025877 1998-11-13 1999-11-03 Bicomponent nonwoven webs containing adhesive and a third component WO2000029655A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14648/00A AU1464800A (en) 1998-11-13 1999-11-03 Bicomponent nonwoven webs containing adhesive and a third component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/203,903 US6589892B1 (en) 1998-11-13 1998-11-13 Bicomponent nonwoven webs containing adhesive and a third component
US09/203,903 1998-11-13

Publications (2)

Publication Number Publication Date
WO2000029655A1 WO2000029655A1 (en) 2000-05-25
WO2000029655B1 true WO2000029655B1 (en) 2000-08-03

Family

ID=22755783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/025877 WO2000029655A1 (en) 1998-11-13 1999-11-03 Bicomponent nonwoven webs containing adhesive and a third component

Country Status (6)

Country Link
US (1) US6589892B1 (en)
AR (1) AR021144A1 (en)
AU (1) AU1464800A (en)
CO (1) CO5100976A1 (en)
TW (1) TWI245088B (en)
WO (1) WO2000029655A1 (en)

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AR021144A1 (en) 2002-06-12
CO5100976A1 (en) 2001-11-27
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TWI245088B (en) 2005-12-11
US6589892B1 (en) 2003-07-08

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