Process for manufacturing side fold sacks made of plastic film
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United States of America Patent
Stats
-
Oct 5, 2004
Grant Date -
Aug 8, 2002
app pub date -
Feb 5, 2002
filing date -
Feb 6, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method for manufacturing side fold sacks from a flat lying segment of a web of plastic tubular film provided with side folds. According to the method, the bottom end of the segment is provided in such a manner with a staggered cut or a staggered detachment along a perforation that a staggered portion is formed in which the rear wall projects beyond the front wall. Adhesive is applied to the staggered portion up to the area of a fold line, which is located adjacent the edge of the front wall that has been cut free. The staggered portion is then folded over the fold line and adhered onto the front wall to seal the bottom end of the side fold sack.
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