Thermally shrinkable film having a liquid detecting function and a package using the same
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United States of America Patent
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Apr 28, 1992
Issued Date -
N/A
app pub date -
Jun 1, 1990
filing date -
Nov 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermally shrinkable film with a liquid detecting function is prepared by coating or printing one side of the film with an ink which turns color or dissolves upon contact with a liquid. An item or object to be packaged is packaged in a thermally shrinkable film. The thermally shrinkable film and the package are useful for detecting a liquid leaking from the packed item or object, or entering into the package from the outside. This permits a visual inspection of the quality of the item or object packaged therein or of contamination by a foreign substance.
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Cited Art Landscape
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