Disposable diaper
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United States of America Patent
Stats
-
Nov 25, 1997
Grant Date -
N/A
app pub date -
Nov 27, 1996
filing date -
Nov 29, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A disposable diaper is provided with an indicator adapted to be revealed as it is wetted with discharged urine and to tell a mother her baby's urination. The indicator comprises a hydrophilic base sheet, a first coating layer formed on one side of the base sheet so as to develop its proper color as the indicator is wetted with urine, and a second coating layer formed on the other side of the base sheet or upper surface of the first coating layer and intermittently bonded to the inner surface of the backsheet so that the second coating layer covers up the first coating layer. The second coating layer becomes transparent as the indicator is wetted with urine.
First Claim
Family
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