Disposable absorbent article having a stain resistant topsheet
AssigneeThe Procter & Gamble Company
InventorsWilliam I. Mullane, Douglas J. Smith
Life of this patent
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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.
Claims8
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 about 0.030 inches, said topsheet a multiplicity of apertures with less than about 25 percent of said apertures having an equivalent hydraulic diameter less than or equal to about 0.025 inches, said topsheet having a percent open area of at least about 35 percent.
A catamenial pad 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 about 0.030 inches, said topsheet having a multiplicity of apertures with less than about 25 percent of said apertures having an equivalent hydraulic diameter less than or equal to about 0.025 inches, said topsheet having a percent open area of at least about 35 percent.
Dependencies are inferred from the claim text.