Electrostatic pinning in a process for gusseting film web

Details Electrostatic pinning in a process for gusseting film web Electrostatic pinning in a process for gusseting film web

B - Operations, Transporting

29

C

154/71.04, 154/2

B29C 65/74 (2006.01) B31B 19/74 (2006.01)

Patent

CA 2040384

ABSTRACT Disclosed is an apparatus and process for making reclosable thermoplastic bags having a means for applying an electrostatic charge of negative or positive polarity to the film web from which the bags are made to reduce bag sideweld leakage. In the case of gusseted bags, the stability of the gusset is enhanced in addition to having reduced incidence of sideweld leakage. 36,989D-F

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