US2008000057A1PendingUtilityA1
Non-woven structures and methods of making the same
Est. expiryJun 29, 2026(expired)· nominal 20-yr term from priority
Inventors:Hien Nguyen
D04H 1/498D04H 1/492D04H 1/495
50
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Claims
Abstract
Provided are layered non-woven structures comprising a fibrous, water-permeable anchoring layer and a fibrous layer having fibers entangled about the 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 method of producing a layered, composite material comprising urging a stream of fluid into contact with a layered structure comprising a layer of unbonded fibers and a fluid-permeable, anchoring layer having a tensile strength of at least about 5 N/5 cm, wherein said layered structure is supported on a topographic forming surface and wherein said layered structure is contacted for a time sufficient to conform such layered structure to said topographic forming surface.
2 . The method of claim 1 wherein said anchoring layer is positioned in direct contact with said topographic forming member.
3 . The method of claim 2 wherein said anchoring layer comprises a spunbond material.
4 . The method of claim 2 wherein said layer of unbonded fibers comprises cellulose fibers.
5 . The method of claim 4 wherein said cellulose fibers comprise wood pulp.
6 . The method of claim 5 wherein said wood pulp comprises mercerized or crosslinked pulp.
7 . The method of claim 2 wherein said layer of unbonded fibers comprises a layer of long fibers positioned between said anchoring layer and said stream.
8 . The method of claim 7 further comprising a layer of cellulose fibers positioned between said layer of long fibers and said stream.
9 . The method of claim 8 wherein said cellulose fibers comprise wood pulp.
10 . The method of claim 1 wherein said method produces a composite material having an LSV of at least about 20 grams.Cited by (0)
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