Method of making an absorbent disposable article
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 7, 1991
Issued Date -
N/A
app pub date -
Mar 31, 1988
filing date -
Apr 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an absorbent disposable article, such as in particular a diaper, in which an absorbent body is covered on one side by a liquid-impermeable protective sheet and on the opposite side by a porous layer, certain edge areas of the porous cover layer should be provided with a liquid-impermeable protective layer. This protective layer is formed as a prefabricated impervious sheet and possesses, before being placed on cover layer, on one side a smooth and the other side an extremely coarse surface. The impervious sheet serving as the protective layer penetrates essentially exclusively with its coarse surface areas inside the cover layer. Through the smooth side of this impervious sheet, an absolute imperviousness is assured. Because of the physical bond, which forms between the impervious sheet and the cover layer, the impervious sheet can be formed extremely thin, i.e., a minimum amount of material is sufficient for the impervious sheet. For only partial penetration of the impervious sheet into the cover layer, special manufacturing processes are indicated.
First Claim
Family
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Cited Art Landscape
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