US2008003909A1PendingUtilityA1
Non-woven structures and methods of making the same
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-modified1 . 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.Join the waitlist — get patent alerts
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