Process for sealing glass container openings
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United States of America Patent
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Apr 10, 1984
Grant Date -
N/A
app pub date -
Jan 25, 1982
filing date -
Jul 20, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the sealing of a glass container containing a product such as a food product by means of a cover comprising a metal foil having on one surface thereof a sealant layer of a thermoplastic resin, the opening end of the container is preheated, and the cover is placed on the opening end, after which the cover is pressed against the opening end successively by a heating plate and a separate pressing plate. By this process, a positive seal and a high sealing process efficiency are obtained even when the container content is a product such as a heated liquid food product and even when the rim surface of the opening end of the container has some projecting irregularities.
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