Method of detecting heat seal breaks and package thereof

Details Method of detecting heat seal breaks and package thereof Method of detecting heat seal breaks and package thereof

1977-01-24

1978-06-27

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

73 498, 206459, B65D 7300, G01M 300, G01N 1908

Patent

active

040972364

ABSTRACT:
Breaks in heat seals between a paper member and a clear plastic member are detected by providing a paper member with a relatively dark coloration, for example dark blue, dark green or dark red, at least in the area of the heat seal, heat sealing the clear plastic member to the paper member in the desired seal area whereby upon breaking the heat seal there is a distinct color contrast between the break in the heat seal and the relatively dark coloration of the paper and any remaining heat sealed area. The method is especially suited for the manufacture of sterilizable packages or pouches for medical implements.

REFERENCES:
patent: 3533548 (1970-10-01), Taterka
patent: 3568627 (1971-03-01), Selinger et al.
patent: 3616898 (1971-11-01), Massie

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