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GB2640809A - Air permeable nonwoven composite - Google Patents

Air permeable nonwoven composite

Info

Publication number
GB2640809A
GB2640809A GB2510499.3A GB202510499A GB2640809A GB 2640809 A GB2640809 A GB 2640809A GB 202510499 A GB202510499 A GB 202510499A GB 2640809 A GB2640809 A GB 2640809A
Authority
GB
United Kingdom
Prior art keywords
less
film
polymer
cfm
nonwoven
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.)
Pending
Application number
GB2510499.3A
Other versions
GB202510499D0 (en
Inventor
E Jenkins Shawn
M Welch Howard
L Johns Renee
J Reader David
Gorman Doug
A Walton Glynis
m allen Christopher
G Vosters Terrance
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.)
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
Original Assignee
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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 Worldwide Inc, Kimberly Clark Corp filed Critical Kimberly Clark Worldwide Inc
Publication of GB202510499D0 publication Critical patent/GB202510499D0/en
Publication of GB2640809A publication Critical patent/GB2640809A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/144—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • B32B37/203—One or more of the layers being plastic
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • 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
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • B32B2038/0028—Stretching, elongating
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • B32B2038/042—Punching
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0207—Elastomeric fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • 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
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • 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
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

An air permeable, elastic nonwoven composite that contains an elastic film laminated to one or more nonwoven web materials is described. The elastic film is fed into a bonding and perforating device while the film is stretched to form the laminate. The laminate is then maintained in a stretched state after exiting the bonding and perforating device for better control over the permeability properties.

Claims (37)

  1. What Is Claimed:
    1 . A method of forming a nonwoven composite, the method comprising: concurrently melt fusing and perforating an elastic film to a nonwoven web material and forming apertures in the film while the film is under tension at a stretch ratio of about 1 .5 or more in a machine direction; and maintaining the film under tension such that the film retracts by no more than about 55% in the machine direction after the apertures have formed and the film has been melt fused to the nonwoven web material.
  2. 2. The method of claim 1 , wherein the nonwoven composite is thereafter retracted such that less than 20% of stretch in remains in the film in the machine direction prior to or during winding onto a roll.
  3. 3. The method of claim 1 , wherein the film is maintained under tension such that the film retracts by no more than about 50%, such as no more than about 40%, such as no more than about 30% in the machine direction after the apertures have formed and the film has been melt fused to the nonwoven web material.
  4. 4. The method of claim 1 , wherein at least one of the apertures has a length of from about 200 to about 5000 micrometers.
  5. 5. The method of claim 1 , wherein the nonwoven composite has a permeability of greater than about 10 cfm, such as greater than about 25 cfm, such as greater than about 30 cfm, such as greater than about 50 cfm, such as greater than about 80 cfm.
  6. 6. The method of claim 1 , wherein the film is maintained under tension after the apertures have formed and the film has been melt fused to the nonwoven web material for at least about 0.1 seconds and for less than about 10 seconds.
  7. 7. The method of claim 1 , wherein the film is maintained under tension after the apertures have formed and the film has been melt fused to the nonwoven web material by a downstream tension device.
  8. 8. The method of claim 7, wherein the tension device comprises a nip formed between two rolls or comprises an s-wrap configuration of guide rolls.
  9. 9. The method of claim 1 , wherein the nonwoven web material and the elastic film are melt fused at a plurality of discrete bond sites separated by unbonded areas.
  10. 10. The method of claim 1 , wherein the elastic film comprises an elastomeric block copolymer or an elastomeric semi-crystalline polyolefin, and wherein the semi-crystalline polyolefin is an ethylene/oc-olefin copolymer, propylene/oc-olefin copolymer, or a combination thereof. 40 SUBSTITUTE SHEET (RULE 26)
  11. 11 . The method of claim 1 , wherein the elastic film is apertured and melt fused under tension at a stretch ratio of from about 2.5 to about 7.0.
  12. 12. The method of claim 1 , wherein the nonwoven web material contains fibers comprising spunbond fibers, meltblown fibers, staple fibers, or a combination thereof and wherein the fibers comprise a low temperature polymer.
  13. 13. The method of claim 12, wherein the low temperature polymer comprises a polyethylene polymer, a polyflactic acid), a polyhydroxyalkanoate polymer, a polyethylene adipate) polymer, a polyethylene oxide) (PEG) polymer, an elastomer, a plastomer, a random copolymer, or a polymer blend containing a plasticizer.
  14. 14. The method of claim 12, wherein the low temperature polymer has a melting point of less than about 150° C, such as less than about 140° C, such as less than about 130° C, such as less than about 120° C.
  15. 15. The method of claim 12, wherein the low temperature polymer has a VICAT softening temperature of less than about 125° C, such as less than about 110° C, such as less than about 100° C, such as less than about 90° C, and greater than about 40° C.
  16. 16. The method of claim 12, wherein the low temperature polymer has a Shore A Hardness of less than about 110, such as less than about 100, such as less than about 90, and greater than about 65.
  17. 17. The method of claim 1 , wherein the elastic film is concurrently melt fused and perforated to the nonwoven web material by being fed through a nip formed between two rolls and wherein at least one of the rolls is heated to a surface temperature of from about 50° C. to about 160° C.
  18. 18. The method of claim 1 , wherein the nonwoven web material is unapertured after being melt fused to the film.
  19. 19. The method of claim 1 , wherein an additional nonwoven web material is melt fused to the elastic film such that the elastic film is positioned between the nonwoven web materials.
  20. 20. The method of claim 1 , wherein the elastic film includes a skin layer and wherein the skin layer is positioned on the elastic film opposite the nonwoven web material, the skin layer comprising a low temperature polymer.
  21. 21 . A nonwoven composite comprising: an elastic film that contains an elastomeric polymer; and a nonwoven web material that contains fibers and wherein the fibers comprise a low temperature polymer, wherein the film is positioned adjacent and melt fused to the nonwoven web 41 SUBSTITUTE SHEET (RULE 26) material so that the elastic film adheres to the nonwoven web material at a plurality of discrete bond sites, the elastic film defining a plurality of apertures having a perimeter about which the corresponding discrete bond sites are proximately located, wherein at least one of the apertures has a length of from about 200 to about 5000 micrometers, wherein the nonwoven web material is unapertured at an area adjacent to the aperture in the film and is unbonded to the film except at the corresponding discrete bond sites, the nonwoven composite having a permeability of greater than about 10 cfm.
  22. 22. The nonwoven composite of claim 21 , wherein the nonwoven composite has a permeability of greater than about 25 cfm, such as greater than about 40 cfm, such as greater than about 45 cfm, such as greater than about 50 cfm, such as greater than about 70 cfm, such as greater than about 90 cfm.
  23. 23. The nonwoven composite of claim 21 , wherein the nonwoven web material contains fibers comprising spunbond fibers, meltblown fibers, staple fibers, or a combination thereof.
  24. 24. The nonwoven composite of claim 21 , wherein the low temperature polymer comprises a polyethylene polymer, a poly(lactic acid), a polyhydroxyalkanoate polymer, a polyethylene adipate) polymer, a polyethylene oxide) (PEG) polymer, an elastomer, a plastomer, a random copolymer, or a polymer blend containing a plasticizer.
  25. 25. The nonwoven composite of claim 21 , wherein the low temperature polymer comprises an elastomer.
  26. 26. The nonwoven composite of claim 21 , wherein the low temperature polymer has a melting point of less than about 150° C, such as less than about 140° C, such as less than about 130° C, such as less than about 120° C, and greater than about 80° C.
  27. 27. The nonwoven composite of claim 21 , wherein the low temperature polymer has a VICAT softening temperature of less than about 125° C, such as less than about 110° C, such as less than about 100° C, such as less than about 90° C, and greater than about 40° C.
  28. 28. The nonwoven composite of claim 21 , wherein the low temperature polymer has a Shore A Hardness of less than about 110, such as less than about 100, such as less than about 90, and greater than about 65.
  29. 29. A nonwoven composite comprising: an elastic film that contains an elastomeric polymer and at least one skin layer, the skin layer comprising a low temperature polymer; and a nonwoven web material that contains fibers, wherein the film is positioned adjacent and melt fused to the nonwoven web material along a surface opposite the skin layer so that the elastic film adheres to the nonwoven web material at a plurality of discrete bond sites, the elastic film defining a 42 SUBSTITUTE SHEET (RULE 26) plurality of apertures having a perimeter about which the corresponding discrete bond sites are proximately located, wherein at least one of the apertures has a length of from about 200 to about 5000 micrometers, wherein the nonwoven web material is unapertured at an area adjacent to the aperture in the film and is unbonded to the film except at the corresponding discrete bond sites, the nonwoven composite having a permeability of greater than about 25 cfm, such as less than about 40 cfm.
  30. 30. The nonwoven composite of claim 29, wherein the nonwoven composite has a permeability of greater than about 45 cfm, such as greater than about 50 cfm, such as greater than about 70 cfm, such as greater than about 90 cfm.
  31. 31 . The nonwoven composite of claim 29, wherein the nonwoven web material contains fibers comprising spunbond fibers, meltblown fibers, staple fibers, or a combination thereof.
  32. 32. The nonwoven composite of claim 29, wherein the low temperature polymer comprises a polyethylene polymer, a poly(lactic acid), a polyhydroxyalkanoate polymer, a polyethylene adipate) polymer, a polyethylene oxide) (PEG) polymer, an elastomer, a plastomer, a random copolymer, or a polymer blend containing a plasticizer.
  33. 33. The nonwoven composite of claim 29, wherein the low temperature polymer comprises an elastomer.
  34. 34. The nonwoven composite of claim 29, wherein the low temperature polymer has a melting point of less than about 150° C, such as less than about 140° C, such as less than about 130° C, such as less than about 120° C, and greater than about 80° C.
  35. 35. The nonwoven composite of claim 29, wherein the low temperature polymer has a VICAT softening temperature of less than about 125° C, such as less than about 110° C, such as less than about 100° C, such as less than about 90° C, and greater than about 40° C.
  36. 36. The nonwoven composite of claim 29, wherein the low temperature polymer has a Shore A Hardness of less than about 110, such as less than about 100, such as less than about 90, and greater than about 65.
  37. 37. An absorbent article comprising an outer cover, a bodyside liner joined to the outer cover, and an absorbent core positioned between the outer cover and the bodyside liner, wherein the absorbent article includes the nonwoven composite of any of claims 21 through 36. 43 SUBSTITUTE SHEET (RULE 26)
GB2510499.3A 2022-12-09 2023-12-08 Air permeable nonwoven composite Pending GB2640809A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263431418P 2022-12-09 2022-12-09
PCT/US2023/083101 WO2024124118A1 (en) 2022-12-09 2023-12-08 Air permeable nonwoven composite

Publications (2)

Publication Number Publication Date
GB202510499D0 GB202510499D0 (en) 2025-08-13
GB2640809A true GB2640809A (en) 2025-11-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB2510499.3A Pending GB2640809A (en) 2022-12-09 2023-12-08 Air permeable nonwoven composite

Country Status (7)

Country Link
KR (1) KR20250122475A (en)
CN (1) CN120303110A (en)
AU (1) AU2023390532A1 (en)
DE (1) DE112023004408T5 (en)
GB (1) GB2640809A (en)
MX (1) MX2025005977A (en)
WO (1) WO2024124118A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080095978A1 (en) * 2006-08-31 2008-04-24 Kimberly-Clark Worldwide, Inc. Nonwoven composite containing an apertured elastic film
US20090197041A1 (en) * 2008-01-31 2009-08-06 Kimberly-Clark Worldwide, Inc. Printable Elastic Composite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080095978A1 (en) * 2006-08-31 2008-04-24 Kimberly-Clark Worldwide, Inc. Nonwoven composite containing an apertured elastic film
US20090197041A1 (en) * 2008-01-31 2009-08-06 Kimberly-Clark Worldwide, Inc. Printable Elastic Composite

Also Published As

Publication number Publication date
WO2024124118A1 (en) 2024-06-13
AU2023390532A1 (en) 2025-07-10
DE112023004408T5 (en) 2025-08-14
GB202510499D0 (en) 2025-08-13
KR20250122475A (en) 2025-08-13
MX2025005977A (en) 2025-06-02
CN120303110A (en) 2025-07-11

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