Patent EP0040084A2 successfully refreshed from Google Patents.
EP0040084A2
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EP
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Disposable absorbent article having an intermediate layer interposed between the topsheet and the absorbent core
Assignee: Procter and Gamble Co
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Filing: 1981-05-11
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Granted: —
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Expires: 2001-05-11
Abstract
Abstract An article of manufacture is disclosed for absorbing liquids, particularly body exudates such as menstrual discharges. An apertured formed film topsheet having a layer of fibers affixed to the inner surface thereof overlays an intermediate layer having a multiplicity of tapered capillaries. The apertured formed film topsheet has a specified combination of caliper, percent open area and percent of apertures having an equivalent hydraulic diameter less than or equal to 0.025 inches (0.064 cm) which impart a stain resistant character to the topsheet.
Inventors
- 👤 Nicholas Albert Ahr
- 👤 Douglas John Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 08:19
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/513; A61F13/51305; A61F13/53; A61F13/534; A61F13/537; A61F13/53743; A61F13/53747; A61F13/45; A61F13/47; A61F2013/51002; A61F2013/51038; A61F2013/51042; A61F2013/51355; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/53445; A61F2013/53765; A61F2013/53782; A61F13/539; A61F2013/53908; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
218 words
A disposable absorbent article comprising: an absorbent core means for absorbing liquid, said absorbent core means having a first and a second opposed face; a liquid impermeable backsheet overlaying said first opposed face of said absorbent core means; a liquid permeable topsheet overlaying said second opposed face of said absorbent core means, said topsheet having an inner surface facing toward said absorbent core means; characterised in that a layer of fibers is affixed to said inner surface of said topsheet, said layer of fibers comprising a multiplicity of individual fibers, said layer of fibers weighing at least 1.5 grams of said fibers per square meter of said topsheet; and an intermediate layer is interposed between said layer of fibers and said absorbent core means, said intermediate layer having a multiplicity of tapered capillaries, each of said capillaries having a base opening in the plane of said intermediate layer and an apex opening remote from said plane of said intermediate layer, and having an angle of taper of from 10 0 to 60°, said base opening dimension being from 0.15 mm to 6.35 mm and said apex opening dimension being from 0.10 mm to 2.5 mm, said base opening being in contact with said layer of fibers and said apex opening being in contact with said absorbent core means.
Claim 2
Dependent Claim
218 words
A disposable absorbent article comprising: an absorbent core means for absorbing liquid, said absorbent core means having a first and a second opposed face; a liquid impermeable backsheet overlaying said first opposed face of said absorbent core means; a liquid permeable topsheet overlaying said second opposed face of said absorbent core means, said topsheet having an inner surface facing toward said absorbent core means; characterised in that a layer of fibers is affixed to said inner surface of said topsheet, said layer of fibers comprising a multiplicity of individual fibers, said layer of fibers weighing at least 1.5 grams of said fibers per square meter of said topsheet; and an intermediate layer is interposed between said layer of fibers and said absorbent core means, said intermediate layer having a multiplicity of tapered capillaries, each of said capillaries having a base opening in the plane of said intermediate layer and an apex opening remote from said plane of said intermediate layer, and having an angle of taper of from 10 0 to 60°, said base opening dimension being from 0.15 mm to 6.35 mm and said apex opening dimension being from 0.10 mm to 2.5 mm, said base opening being in contact with said layer of fibers and said apex opening being in contact with said absorbent core means.
Claim 3
Dependent Claim
27 words
A disposable absorbent article according to Claim 1 wherein said layer of fibers weight at least 3.1 grams of said fibers per square meter of said topsheet.
Claim 4
Dependent Claim
37 words
A disposable absorbent article according to either one of Claims 1 and 2 wherein said base opening dimension is from 0.75 mm to 1.5 mm and said apex opening dimension is from 0.125 nun to 0.75 mm.
Claim 5
Dependent Claim
66 words
4 . A disposable absorbent article according to any one of Claims 1-3 wherein said topsheet is a hydrophobic film having a caliper of less than 0.75 mm, said topsheet.having a multiplicity of apertures with less than 25 percent of said apertures having an equivalent hydraulic diameter less than or equal to 0.635 mm, said topsheet having a percent open area of at least 35 percent.
Claim 6
Dependent Claim
16 words
A disposable absorbent article according to Claim 4 wherein said topsheet is a hydrophobic formed film.
Claim 7
Dependent Claim
18 words
A disposable absorbent article according to any one of Claims 1-5 in the form of a catamenial pad.
References Cited (Backward Citations)
No citation records indexed.
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