EP0070163A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Nonwoven fabric composed of polyester/polyethylene conjugate fibers
Assignee: Chicopee LLC
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Filing: 1982-07-09
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Granted: —
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Expires: 2002-07-09
Abstract
Abstract There is disclosed a thermal bonded non-woven fabric composed of polyester/polyethylene conjugate fibers, said fabric having an excellent combination of low bulk density, softness, and strength. The fabric is especially useful as a facing in absorbent products.
Inventors
- 👤 Alfred Thomas Mays
- 👤 Charles James Shimalla
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 09:46
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/51; A61F13/511; A61F13/51121; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/225; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; A61F13/15577; A61F2013/15821; A61F2013/51002; A61F2013/51038; A61F2013/51042; A61F2013/530131; A61F2013/53016; A61F2013/530182; A61F13/84; A61F2013/8488
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
68 words
1 . A thermal bonded nonwoven fabric having a bulk density of from 0.01 to 0.15 grams per cubic centimeter, and comprising thermal bonded polyester/polyethylene conjugate fibers, said fabric. having an excellent combination of strength, low bulk density, and softness, wherein the birefringence of the polyester in the fibers of said fabric is not significantly different from that of the polyester in the fibers prior to thermal bonding.
Claim 2
Dependent Claim
68 words
1 . A thermal bonded nonwoven fabric having a bulk density of from 0.01 to 0.15 grams per cubic centimeter, and comprising thermal bonded polyester/polyethylene conjugate fibers, said fabric. having an excellent combination of strength, low bulk density, and softness, wherein the birefringence of the polyester in the fibers of said fabric is not significantly different from that of the polyester in the fibers prior to thermal bonding.
Claim 3
Dependent Claim
55 words
A thermal bonded nonwoven fabric having a bulk density of from 0.01 to 0.15 grams per cubic centimeter, and comprising thermal bonded polyester/polyethylene conjugate fibers, said fabric having an excellent combination of strength, low bulk density, and softness, wherein the birefringence of the polyester in the fibers of said fabric is at least about. 0.16.
Claim 4
Dependent Claim
55 words
A thermal bonded nonwoven fabric having a bulk density of from 0.01 to 0.15 grams per cubic centimeter, and comprising thermal bonded polyester/polyethylene conjugate fibers, said fabric having an excellent combination of strength, low bulk density, and softness, wherein the birefringence of the polyester in the fibers of said fabric is at least about. 0.16.
Claim 5
Dependent Claim
19 words
The fabric of claim 1 or 2 wherein the polyester/ polyethylene conjugate fibers have polyester cores and polyethylene sheaths.
Claim 6
Dependent Claim
38 words
The fabric of any one of claims 1to 3 wherein the polyethylene component of said conjugate fiber has a density of at least about 0.94 grams per cubic centimeter and a melt index of at least about 10.
Claim 7
Dependent Claim
45 words
The fabric of any one of claims 1 to 4 wherein said fabric has a strikethrough time of not more than about 3 seconds, a rewet of less than about 0.1 gram, and a bulk density of from 0.01 to 0.07 grams per cubic centimeter.
Claim 8
Dependent Claim
30 words
An absorbent product including a facing and an absorbent layer in contact within said facing, wherein said facing is the nonwoven fabric of any one of claims 1 to 5.
Claim 9
Dependent Claim
13 words
The absorbent product of claim 6 in the form of a disposable diaper.
Claim 10
Dependent Claim
13 words
The absorbent product of claim 6 in the form of a sanitary napkin.
References Cited (Backward Citations)
No citation records indexed.
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