Thermally shrinkable film having a liquid detecting function and

Details Thermally shrinkable film having a liquid detecting function and Thermally shrinkable film having a liquid detecting function and

1990-06-01

1992-04-28

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

206459, 206497, 206807, 428 351, 428199, 428916, B65D 6546

Patent

active

051088037

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.

REFERENCES:
patent: 4449631 (1984-05-01), Levenberg et al.
patent: 4505218 (1985-03-01), Fiarman et al.
patent: 4516679 (1985-05-01), Simpson et al.
patent: 4546881 (1985-10-01), Tasma
patent: 4718553 (1988-01-01), Adamoli et al.
patent: 4755405 (1988-07-01), Massucco et al.
patent: 4816305 (1989-03-01), Stillwell et al.

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