[특허]Unitary absorbent core with binding agents

Unitary absorbent core with binding agents 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-013/15 A61F-013/20
출원번호	US-0883173 (2004-06-30)
등록번호	US-8324446 (2012-12-04)
발명자 / 주소	Wang, James Hongxue George, Russell Paul Krautkramer, Candace Dyan Casson, Kenneth Russell
출원인 / 주소	Kimberly-Clark Worldwide, Inc.
대리인 / 주소	Stoker, Denise L.
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

A unitary absorbent core includes a nonwoven layer which has a body-facing surface and a garment-facing surface. At least a portion of a first binding agent is impregnated into the garment-facing surface. A superabsorbent material is located on the impregnated surface, and a second binding agent is located on the superabsorbent material and can be superimposed onto the first binding agent. The unitary absorbent core can be utilized for absorbing viscous fluids.

대표청구항 ▼

1. A unitary absorbent core comprising: a single nonwoven layer having a body-facing surface and an opposing garment-facing surface;at least a portion of a first non-fibrous binding agent impregnated into said garment-facing surface of said nonwoven layer and wherein said body-facing surface is substantially void of said first binding agent;a superabsorbent material located on the garment-facing surface of said nonwoven layer in contact with said first binding agent and wherein the area between the garment-facing surface and the body-facing surface of said nonwoven layer is substantially void of said superabsorbent material; anda second non-fibrous binding agent located adjacent to said superabsorbent material and superimposed on said first binding agent such that said superabsorbent material is located between said first binding agent and said second binding agent and wherein said body-facing surface of said nonwoven layer is substantially void of said second binding agent. 2. The unitary absorbent core of claim 1 wherein said nonwoven layer is airlaid. 3. The unitary absorbent core of claim 1 wherein said nonwoven layer is bonded carded web. 4. The unitary absorbent core of claim 1 wherein said nonwoven layer has a density in the range of about 0.02 g/cc to about 0.12 g/cc. 5. The unitary absorbent core of claim 1 wherein said nonwoven layer has a basis weight in the range of about 30 gsm to about 300 gsm. 6. The unitary absorbent core of claim 1 wherein said first binding agent comprises a latex binding agent. 7. The unitary absorbent core of claim 1 wherein said first binding agent comprises ethylene vinyl acetate copolymer. 8. The unitary absorbent core of claim 1 wherein said superabsorbent material is a multicomponent superabsorbent material. 9. The unitary absorbent core of claim 1 wherein said superabsorbent is present in an amount of about 5 gsm to about 150 gsm. 10. The unitary absorbent core of claim 1 wherein said superabsorbent is present in an amount of about 30 gsm to about 90 gsm. 11. The unitary absorbent core of claim 1 having a TGI Ratio, of 1.2 or less. 12. The unitary absorbent core of claim 1 wherein said second binding agent comprises a latex binding agent. 13. The unitary absorbent core of claim 1 wherein said second binding agent comprises ethylene vinyl acetate copolymer. 14. The unitary absorbent core of claim 1 comprising a total binding agent add-on level in the range of about 5 gsm to about 100 gsm. 15. The unitary absorbent core of claim 1 comprising a total binding agent add-on level in the range of about 10 gsm to about 60 gsm. 16. The unitary absorbent core of claim 1 further comprising at least one odor reducing agent. 17. The unitary absorbent core of claim 1 further comprising at least one fluid modifying agent. 18. The unitary absorbent core of claim 1 having a menses wicking distance of at least about 8 centimeters or greater as measured by a Horizontal Wicking Test. 19. The unitary absorbent core of claim 1 wherein a stain area on said body-facing surface is about 50-percent smaller than the stain area on said garment-facing surface. 20. A feminine care article having a longitudinal direction, a lateral direction, first and second longitudinally opposed end portions, and an intermediate portion located between said end portions, said article comprising: a liquid-permeable cover;a baffle;a unitary absorbent core sandwiched between said cover and said baffle, said unitary absorbent core comprising a single nonwoven layer having a body-facing surface and an opposing garment-facing surface, a first non-fibrous binding agent at least partially impregnated into said garment-facing surface and wherein said body-facing surface is substantially void of said first binding agent, a superabsorbent material located on said garment-facing surface of said nonwoven layer in contact with said first binding agent and wherein the area between the garment-facing surface and the body-facing surface of said nonwoven layer is substantially void of said superabsorbent material, and a second non-fibrous binding agent located adjacent to said superabsorbent material and superimposed on said first binding agent such that said superabsorbent material is located between said first binding agent and said second binding agent and wherein said body-facing surface of said nonwoven layer is substantially void of said second binding agent. 21. The feminine care article of claim 20 wherein said garment-facing surface of said nonwoven layer is oriented towards said baffle. 22. The feminine care article of claim 20 wherein said liquid-permeable cover comprises apertures. 23. The feminine care article of claim 20 wherein said baffle is breathable.

이 특허에 인용된 특허 (30)

Graef, Peter A.; Elston, Colin; Bunker, Daniel T.; Howard, Fred B.; Mathews, Jeffrey D.; Naieni, Shahrokh A.; Miller, Charles E., Absorbent article containing unitary stratified composite.
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Makoui Kambiz B. (333 Winnebago Ave. Menasha WI 54952), Absorbent structure containing superabsorbent particles and having a latex binder coating on at least one surface of the.
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James R. Gross ; Samuel C. Baer ; Steve Leptick CA; John P. Erspamer, Absorbent structures with integral layer of superabsorbent polymer particles.
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Soerensen Birger E. (Vejle Oe DKX), Apparatus for depositing fibers.
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Kroyer Karl K. K. (Le Schuykill ; 19 ; Blvd. de Suisse ; Apt. No. 1 ; Bloc B ; 3. etage Monte Carlo MCX) Rasmussen Torben (Brondby Strand DKX), Apparatus for the production of a fibrous web.
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Achter Amy Michele ; Leach Crystal Sutphin ; Lindon Jack Nelson ; Sorebo Heather Anne ; Weber Mary Garvie, Artificial menses fluid.
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Thomas W. Beihoffer ; Michael A. Mitchell ; Mark Anderson ; Anthony S. Tomlin, Diapers having improved acquisition rates.
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Dutkiewicz, Jacek K.; Wahal, Sanjay; Hood, Ryan K.; Erspamer, John P.; Boehmer, Brian E., High-performance absorbent structure.
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Sawyer, Lawrence Howell; Burnes, Andrew Scott; Little, Sylvia Bandy; Schild, Lisa Ann, Layered composites for personal care products.
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Ali Khan Mir I. (Appleton WI) Schmidt Richard J. (Appleton WI), Method and apparatus for forming soft, bulky absorbent webs and resulting product.
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Appel David W. (Wittenberg WI) Morman Michael T. (Appleton WI), Method for forming nonwoven webs.
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Appel David W. (Wittenberg WI) Chung Raymond (Neenah WI), Method of forming a web of air-laid dry fibers.
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Makoui Kambiz B. (Menasha WI), Method of making an absorbant structure.
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Samantha J. Evans GB; John A. Henderson GB; Michael A. Mitchell ; Anthony S. Tomlin, Multicomponent superabsorbent fibers.
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Samantha J. Evans GB; John A. Henderson GB; Michael A. Mitchell ; Anthony S. Tomlin, Multicomponent superabsorbent fibers.
상세보기
Beihoffer Thomas W. ; Mitchell Michael A., Multicomponent superabsorbent gel particles.
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Beihoffer Thomas W. ; Mitchell Michael A., Multicomponent superabsorbent gel particles.
상세보기
Beihoffer Thomas W. ; Mitchell Michael A., Multicomponent superabsorbent gel particles.
상세보기
Beihoffer Thomas W. ; Mitchell Michael A. ; Anderson Mark ; Tomlin Anthony S., Multicomponent superabsorbent gel particles.
상세보기
Beihoffer, Thomas W.; Mitchell, Michael A., Multicomponent superabsorbent gel particles.
상세보기
Beihoffer, Thomas W.; Mitchell, Michael A.; Anderson, Mark; Tomlin, Anthony S., Multicomponent superabsorbent gel particles.
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Daley, Michael Allen; Achter, Bruce Wilfuhr; Colman, Charles Wilson; DiPalma, Joseph; Jackson, David Martin; Kollin, Nancy Donaldson; Latimer, Margaret Gwyn; Lefkowitz, Gregory Marc; Little, Sylvia B, Personal care products having reduced leakage.
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Mitchell Michael A. ; Beihoffer Thomas W. ; Trzupek Leticia L ; Darlington ; Jr. Jerald W. ; Anderson Mark, Poly (vinylamine)-based superabsorbent gels and method of manufacturing the same.
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Mitchell Michael A. ; Beihoffer Thomas W. ; Lobo Leticia L. ; Darlington ; Jr. Jerald W., Poly(vinylamine)-based superabsorbent gels and method of manufacturing the same.
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Mitchell Michael A. ; Beihoffer Thomas W. ; Trzupek Leticia L. ; Darlington ; Jr. Jerald W., Poly(vinylamine)-based superabsorbent gels and method of manufacturing the same.
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Kellenberger, Stanley R.; Jackson, David Martin; Ko, Young C.; Soerens, Dave A.; Laumer, Jason M.; Ranganathan, Sridhar, Process for making absorbent material with in-situ polymerized superabsorbent.
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Michael Allen Daley ; Jaime Braverman ; Rebecca Lyn Dilnik ; Ronald Lee Edens ; Yvette Lynn Hammonds ; Tamara Lee Mace ; David Michael Matela ; Alexander Manfred Schmidt-Foerst DE; Laura Jane, Sanitary pad for variable flow management.
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Mitchell Michael A. ; Beihoffer Thomas W., Solid superabsorbent material containing a poly(vinylguanidine) and an acidic water-absorbing resin.
상세보기
Laursen Henning (Aarhus DKX) Mosgaard John (Risskov DKX) Nielson Otto V. (Aarhus CT DKX) Poland Clark L. (New Canaan CT), System for producing an air laid web.
상세보기
Yahiaoui Ali ; Lindon Jack Nelson ; Garavaglia Arthur Edward ; Leach Crystal Sutphin ; Hetzler Connie Lynn ; Woltman Garry Roland ; Potts David Charles, Treatment of materials to improve handling of viscoelastic fluids.
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