EP0039974A1
Expired / Lapsed
EP
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Disposable absorbent article having a stain resistant topsheet
Assignee: Procter and Gamble Co
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Filing: 1981-05-07
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Granted: —
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Expires: 2001-05-07
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
- 👤 William Irvin Mullane
- 👤 Douglas John Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/513; A61F13/51305; A61F13/45; A61F13/47; A61F13/53; A61F13/534; A61F13/537; A61F2013/51002; A61F2013/51038; A61F2013/51042; A61F2013/5127; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/53445; A61F2013/53765; A61F2013/53782; A61F13/539; A61F2013/53908
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 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; and a liquid permeable topsheet overlaying said second opposed face of said absorbent core means, said topsheet being a hydrophobic film having a caliper of less than 0.75 mm and being formed with a multiplicity of apertures, characterised in that less than 25 percent of said , apertures have an equivalent hydraulic diameter less than or equal to 0.64 mm , said topsheet having a percent open area of at least 35 percent.
Claim 2
Dependent Claim
111 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; and a liquid permeable topsheet overlaying said second opposed face of said absorbent core means, said topsheet being a hydrophobic film having a caliper of less than 0.75 mm and being formed with a multiplicity of apertures, characterised in that less than 25 percent of said , apertures have an equivalent hydraulic diameter less than or equal to 0.64 mm , said topsheet having a percent open area of at least 35 percent.
Claim 3
Dependent Claim
26 words
The disposable absorbent article of Claim 1 wherein said topsheet has a percent open area of at least 45 percent, preferably of at least 55 percent.
Claim 4
Dependent Claim
19 words
A disposable absorbent article according to either one of Claims 1 and 2 in the form of catamenial pad.
References Cited (Backward Citations)
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