Apparatus for making bags from a continuously fed thermoplastic

Details Apparatus for making bags from a continuously fed thermoplastic Apparatus for making bags from a continuously fed thermoplastic

1977-04-07

1978-09-19

Coan, James F.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156515, 156583, B31B 2360

Patent

active

041145208

ABSTRACT:
In an apparatus for making bags from a continuously fed flattened thermoplastic tubular or semi-tubular web of film, severing means for cutting the web into sections co-operate with a first welding cylinder for performing a welding operation on each section with the aid of welding tongs, the web sections being held to the welding cylinder by means of belts which partially envelop the cylinder, and a second welding cylinder is provided downstream of the first cylinder, the web sections being transferred to the second cylinder for the purpose of having a further welding operation performed on them.

REFERENCES:
patent: 3703590 (1972-11-01), Holler et al.
patent: 3762282 (1973-10-01), VAN DER Meulen
patent: 3833446 (1974-09-01), Class
patent: 3896709 (1975-07-01), Brinkmeier
patent: 3954371 (1976-05-01), Hutt et al.
patent: 4023470 (1977-05-01), VAN DER Meulen

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