Pouch with superposed tear lines
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United States of America Patent
Stats
-
Feb 27, 1990
Grant Date -
N/A
app pub date -
Nov 16, 1988
filing date -
Sep 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pouch formed of a laminate sheet for containing therein a content such as retort food. Both lateral sides of front and rear walls of the pouch are heat sealed with each other, and top opening is also heat sealed together to sealingly maintain the content. The laminate sheet has at least two heat sealable plastic layers at an inner side of the pouch. At at least one of the heat sealable plastic layers, a surface roughened zones are provided at both front and wear walls. The zones are superposed together and extend along a tearing direction staring from a notch formed at one side heat sealed portion.
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