METHOD FOR HEAT SEALING ZIPPER TAPE, METHOD FOR MANUFACTURING FILM ROLL HAVING ZIPPER TAPE, AND METHOD FOR MANUFACTURING PACKAGING HAVING ZIPPER TAPE
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United States of America Patent
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Issued Date -
Jul 3, 2014
app pub date -
May 30, 2012
filing date -
May 31, 2011
priority date (Note) -
Abandoned
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Abstract
A heat sealing method of a zipper tape is for heat sealing the zipper tape in a direction perpendicular to a feeding direction of a film. The heat sealing method includes: inserting the zipper tape between the film and a circumference of a roller on which the film is wound; and heat sealing the zipper tape to the film with a seal bar following a rotation of the roller in a continuous manner, while the zipper tape is interposed between the circumference of the roller and the film.
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