EP0399564A2
Expired / Lapsed
EP
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Absorbent web and applications of same
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1990-05-28
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Granted: —
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Expires: 2010-05-28
Abstract
Abstract An absorbent web of wet crosslinked cellulose fibers which web has a density within the range of from about 0.08 to about 0.35 grams per cubic centimeter which web possesses improved vertical wicking properties.
Inventors
- 👤 Leo J. Bernardin
- 👤 Catherine J. Heimbach
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/001; D21C9/002; D21C9/005; A; A61; A61F; A61F13/00; A61F13/15; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/28; D21H; D21H11/00; D21H11/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
34 words
An absorbent web of material, said material comprising wet-crosslinked cellulose fibers, said web having a density within the range of from about 0.08 grams per cubic centimeter to about 0.35 grams per cubic centimeter.
Claim 2
Dependent Claim
34 words
An absorbent web of material, said material comprising wet-crosslinked cellulose fibers, said web having a density within the range of from about 0.08 grams per cubic centimeter to about 0.35 grams per cubic centimeter.
Claim 3
Dependent Claim
26 words
The web according to claim 1 wherein the web is air-laid and has a density of from about 0.15 to about 0.30 grams per cubic centimeter.
Claim 4
Dependent Claim
26 words
The web according to claim 1 wherein the web is water-laid and has a density of from about 0.08 to about 0.3 grams per cubic centimeter.
Claim 5
Dependent Claim
55 words
The web according to one of the preceding claims wherein at least one of the initial vertical wicking rate, the vertical wicking capacity at 15 or 30 minutes or the vertical fluid distribution at 18 centimeters is at least about 20 percent, preferably about 40 percent, greater than said similar web of non-crosslinked cellulose fibers.
Claim 6
Dependent Claim
53 words
The web of one of claims 1 to 3 wherein at least two of the initial vertical wicking rate, the vertical wicking capacity at 15 or 30 minutes or the vertical fluid distribution at 18 centimeters is at least about 20 percent, preferably 40%, greater than said similar web of non-crosslinked cellulose fibers.
Claim 7
Dependent Claim
26 words
An absorbent web according to one of the preceding claims, said web possessing improved vertical wicking properties compared to a similar web of non-crosslinked cellulose fibers.
Claim 8
Dependent Claim
54 words
A web of wet crosslinked cellulose fibers, said web being obtainable by subjecting cellulose fibers to a wet crosslinking process, drying said fibers, air-laying said wet crosslinked cellulose fibers into a web and compressing said air-laid web to a density within the range of from about 0.10 to about 0.35 grams per cubic centimeter.
Claim 9
Dependent Claim
54 words
A web of wet crosslinked cellulose fibers, said web being obtainable by subjecting cellulose fibers to a wet crosslinking process, drying said fibers, air-laying said wet crosslinked cellulose fibers into a web and compressing said air-laid web to a density within the range of from about 0.10 to about 0.35 grams per cubic centimeter.
Claim 10
Dependent Claim
28 words
The web according to claim 7 wherein the web is compressed to a density within the range of from about 0.15 to about 0.30 grams per cubic centimeter.
Claim 11
Dependent Claim
57 words
The web according to claim 7 or 8 wherein the web demonstrates improved wet resiliency such that the specific volume (in cubic centimeters per gram) of the web when wet is at least about 45 percent greater than the specific volume of the web when dry, said specific volumes being determined under a 0.2 pound-per-square inch* load.
Claim 12
Dependent Claim
22 words
The web of one of the preceding claims further comprising an amount of a water-swellable polymeric material in flow contact with it.
Claim 13
Dependent Claim
19 words
Use of the web according to one of the preceding claims as an absorbent product especially as a diaper.
Claim 14
Dependent Claim
53 words
An absorbent product, said product comprising: an absorbent web of material, said material comprising wet crosslinked cellulose fibers, said web having a density within the range of from about 0.08 to about 0.35 grams per cubic centimeters, said web possessing improved vertical wicking properties compared to a similar web of non-crosslinked cellulose fibers.
Claim 15
Dependent Claim
53 words
An absorbent product, said product comprising: an absorbent web of material, said material comprising wet crosslinked cellulose fibers, said web having a density within the range of from about 0.08 to about 0.35 grams per cubic centimeters, said web possessing improved vertical wicking properties compared to a similar web of non-crosslinked cellulose fibers.
Claim 16
Dependent Claim
26 words
The absorbent product of claim 12 wherein the absorbent product further comprises an amount of a water-swellable polymeric material in flow communication with said absorbent web.
Claim 17
Dependent Claim
31 words
The absorbent product according to claim 13 wherein the absorbent web transports a liquid applied to the web at a first location to said water-swellable polymer present at a second location.
Claim 18
Dependent Claim
14 words
The absorbent product according to claim 14 wherein the absorbent product is a diaper.
Claim 19
Dependent Claim
61 words
A diaper, said diaper comprising: a water-impervious outer layer; an absorbent web of wet crosslinked cellulose fibers, said web having a density within the range of from about 0.08 to about 0.35 grams per cubic centimeter; and a water-pervious inner layer adapted to contact the skin of wearer, said absorbent web being located between said outer layer and said inner layer.
Claim 20
Dependent Claim
61 words
A diaper, said diaper comprising: a water-impervious outer layer; an absorbent web of wet crosslinked cellulose fibers, said web having a density within the range of from about 0.08 to about 0.35 grams per cubic centimeter; and a water-pervious inner layer adapted to contact the skin of wearer, said absorbent web being located between said outer layer and said inner layer.
Claim 21
Dependent Claim
30 words
The diaper according to claim 16, wherein the absorbent layer is formed by air-laying and has a density within the range of 0.15 to about 0.30 grams per cubic centimeter.
Claim 22
Dependent Claim
32 words
The diaper, according to claim 16 wherein the absorbent layer is formed by water-laying and has a density within the range of from about 0.08 to about 0.3 grams per cubic centimeter.
Claim 23
Dependent Claim
31 words
The diaper according to one of claims 17 to 18, wherein the diaper further comprises an amount of water-swellable polymeric material said material being in flow communication with said absorbent web.
References Cited (Backward Citations)
No citation records indexed.
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