ZIPPER TAPE AND BAG BODY COMPRISING ZIPPER TAPE
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United States of America Patent
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Issued Date -
Apr 24, 2014
app pub date -
Mar 27, 2012
filing date -
Apr 27, 2011
priority date (Note) -
Abandoned
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Abstract
A bag body provided with a zipper tape in which both openability by hands and openability by an automatic machine are improved while ensuring the opening strength on the contents side in order to prevent the leakage of the contents is provided. A zipper tape is configured such that the distance A between a front end part of a female part on the non-opening side and a top part on a protruded part on the opening side, the distance B between a front end part of a female part on the non-opening side and a front part opposing to a stripe-shaped base in a protruded part on the non-opening side, and the angle C formed by a protruded part on the non-opening side and a side surface of a shaft part connecting therewith satisfies the relationship represented by the following formula: A−B≦0.20 mm and 50°≦C≦85°.
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