Shopping bags of thermoplastic synthetic resin sheeting with lateral weld seams, and process for the production thereof
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United States of America Patent
Stats
-
Mar 27, 1990
Grant Date -
N/A
app pub date -
Aug 5, 1988
filing date -
Aug 5, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shopping bag of thermoplastic synthetic resin sheeting with lateral weld seams wherein, at the bag opening, the front wall is fashioned with a straight rim, and the rear wall is fashioned to project beyond the front wall with an approximately sinusoidal rim to form a protruding flap. The sinusoidal rim of the rear wall terminates either above or below the rim of the front wall in the lateral weld seams. A process for the production of the shopping bags by sinusoidal cutting apart of a film ply of a tubular sheet involves a series of sequential operation at successive stages or stations.
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