Multiwall bag and method of packaging utilizing multiwall bags
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United States of America Patent
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Apr 16, 1991
Grant Date -
N/A
app pub date -
Aug 31, 1989
filing date -
Aug 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiwall bag and method of packaging using a multiwall bag are described. The multiwall bag includes an outer paper bag having an uncoated inner surface. One or more thermoplastic bags containing one or more bulk materials are ultrasonically sealed closed, simultaneously green tacking a small portion of the outer surface of such thermoplastic bags to the inner surface of the paper bag. The open end of the paper bag is then closed and folded back on itself with a small amount of adhesive being applied to keep the paper bag closed. As a result, the paper bag is easily opened and the thermoplastic bags can be quickly removed therefrom for wholesale use in compatible processes.
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