Disposable diaper
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United States of America Patent
Stats
-
Jun 16, 1998
Grant Date -
N/A
app pub date -
May 14, 1997
filing date -
May 16, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A disposable diaper includes a topsheet, a backsheet and an absorbent core therebetween. The backsheet is made of an air-permeable but liquid-impermeable plastic film having a surface thereof whitened by fine particles of an inorganic substance contained therein. An indicator 18 provided between the backsheet and the absorbent core. The indicator includes a layer of printed ink adapted to be visually revealed when it is wetted with discharged urine and a masking region disposed between the layer of printing ink and the backsheet so as to cover the layer of printed ink, and the masking region contains a surfactant.
First Claim
Family
International Classification(s)
Cited Art Landscape
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