Bags made from thermoplastic synthetic resin sheeting having cut

Details Bags made from thermoplastic synthetic resin sheeting having cut Bags made from thermoplastic synthetic resin sheeting having cut

1988-08-05

1990-06-05

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493193, 493194, 493195, 493196, B31B 164

Patent

active

049310348

ABSTRACT:
A process for the production of bags from thermoplastic synthetic resin sheeting with a bottom seam and/or a lateral seam fashioned as a cutoff weld seam obtained by severing tubular film sheets in the bottom zone, wherein there is produced by heat contact welding, at a station upstream of a transverse seam cutoff welding of the bottom seam or lateral seam, a wide flush weld seam over the entire width of the tubular film sheet and/or of the bag bottom to be produced, and subsequently the transverse cutoff weld seam is formed over the flush weld seam, extending within the flush weld seam.

REFERENCES:
patent: 2401109 (1946-05-01), Rohdin
patent: 4046065 (1977-09-01), Plate
patent: 4571235 (1986-02-01), Benoit

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