US2008003909A1PendingUtilityA1

Non-woven structures and methods of making the same

Assignee: NGUYEN HIENPriority: Jun 29, 2006Filed: Jun 29, 2006Published: Jan 3, 2008
Est. expiryJun 29, 2026(expired)· nominal 20-yr term from priority
Inventors:Hien Nguyen
B32B 5/26A61F 13/51121A61F 13/5116A61F 13/513D04H 1/498D04H 3/14Y10T442/695Y10T442/60Y10T442/681Y10T442/659
53
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Claims

Abstract

anchoring layer, including patterned and non-patterned structures. Also provided are personal care products comprising the present structures and methods of making the structures.

Claims

exact text as granted — not AI-modified
1 . A layered, composite material comprising a fibrous, fluid-permeable anchoring layer and a fibrous layer comprising fibers entangled about said anchoring layer, said composite material having an LSV of greater than about 20 grams and a drapeability of greater than about 4 gsm/g. 
     
     
         2 . The composite material of  claim 1  wherein said material has an LSV of greater than about 50 grams. 
     
     
         3 . The composite material of  claim 1  wherein said material has an LSV of greater than about 100 grams. 
     
     
         4 . The composite material of  claim 1  wherein said material has a drapeability of greater than about 8 gsm/g. 
     
     
         5 . The composite material of  claim 1  wherein said material has a drapeability of greater than about 16 gsm/g. 
     
     
         6 . The composite material of  claim 1  wherein said material has a density of less than about 0.15 g/cc. 
     
     
         7 . The composite material of  claim 1  wherein said anchoring layer is selected from the group consisting of spun-bonded material, through air-bonded material, and combinations of two or more thereof. 
     
     
         8 . The composite material of  claim 7  wherein said anchoring layer comprises a spun-bonded material comprising one or more polyolefin fibers. 
     
     
         9 . The composite material of  claim 1  wherein at least a portion of the fibers of said fibrous layer having fibers entangled about said anchoring layer comprise cellulose fibers. 
     
     
         10 . The composite material of  claim 9  wherein said cellulose fibers comprise wood pulp. 
     
     
         11 . The composite material of  claim 10  wherein said wood pulp comprises mercerized pulp. 
     
     
         12 . The composite material of  claim 10  wherein said wood pulp comprises cross-linked pulp. 
     
     
         13 . The composite material of  claim 1  comprising a cross-section of entangled region and a cross-section of unentangled region, said entangled and unentangled regions being visibly distinct from one another. 
     
     
         14 . The composite material of  claim 1  comprising a continuous cross-section of entangled region and a plurality of discrete cross-sections of unentangled regions positioned substantially within said continuous cross-section of entangled region. 
     
     
         15 . A layered, composite material comprising a fibrous, fluid-permeable anchoring layer and a fibrous layer comprising fibers entangled about said anchoring layer, said composite material having an LSV of greater than about 20 grams and a density of less than about 0.15 g/cc. 
     
     
         16 . The composite material of  claim 15  wherein said material has an LSV of greater than about 50 grams. 
     
     
         17 . The composite material of  claim 15  wherein said material has an LSV of greater than about 100 grams. 
     
     
         18 . The composite material of  claim 15  wherein said material has a density of less than about 0.12 g/cc. 
     
     
         19 . The composite material of  claim 15  wherein said anchoring layer is selected from the group consisting of spun-bonded material, through air-bonded material, and combinations of two or more thereof. 
     
     
         20 . The composite material of  claim 19  wherein said anchoring layer comprises a spun-bonded material comprising one or more polyolefin fibers. 
     
     
         21 . The composite material of  claim 15  wherein at least a portion of the fibers of said fibrous layer having fibers entangled about said anchoring layer comprise cellulose fibers. 
     
     
         22 . The composite material of  claim 21  wherein said cellulose fibers comprise wood pulp. 
     
     
         23 . The composite material of  claim 22  wherein said wood pulp comprises mercerized pulp. 
     
     
         24 . The composite material of  claim 22  wherein said wood pulp comprises cross-linked pulp. 
     
     
         25 . The composite material of  claim 15  comprising a cross-section of entangled region and a cross-section of unentangled region, said entangled and unentangled regions being visibly distinct from one another. 
     
     
         26 . The composite material of  claim 15  comprising a continuous cross-section of entangled region and a plurality of discrete cross-sections of unentangled regions positioned substantially within said continuous cross-section of entangled region. 
     
     
         27 . A personal care product comprising a material of  claim 1 . 
     
     
         28 . The personal care product of  claim 27  wherein said product comprises a sanitary pad or wipe. 
     
     
         29 . The personal care product of  claim 28  wherein said product is a sanitary pad comprising a topsheet comprising the material of  claim 1 . 
     
     
         30 . The personal care product of  claim 29  wherein said anchoring layer comprises a body-faceable surface of said sanitary pad. 
     
     
         31 . A personal care product comprising a material of  claim 15 . 
     
     
         32 . The personal care product of  claim 31  wherein said product comprises a sanitary pad or wipe. 
     
     
         33 . The personal care product of  claim 32  wherein said product is a sanitary pad comprising a topsheet comprising the material of  claim 1 . 
     
     
         34 . The personal care product of  claim 33  wherein said anchoring layer comprises a body-faceable surface of said sanitary pad.

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