Moisture sensitive film
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United States of America Patent
Stats
-
Dec 1, 1992
Grant Date -
N/A
app pub date -
Jan 27, 1989
filing date -
Jan 27, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A moisture sensitive film is produced by blending a copolyester with a moisture absorbing copolyamide, and extruding the blend either as a mono layer or multi layer construction. The blend material turns white when wetted. The invention has particular application in disposable diapers where a visual indication of wetness is desired.
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Family
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Cited Art Landscape
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