Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1974-12-27
1976-07-20
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
93 35R, C09J 510
Patent
active
039705030
ABSTRACT:
A method of manufacturing a bag from a cylindrical net-like bag blank made of synthetic fibers or synthetic resin. The method involves the steps of inserting into said bag blank a resilient plate having a length which is at least equal to the depth of the bag to be manufactured and a width which is substantially equal to the circumferential length of said bag blank in such a way that the plate is not overlapped with the bag bottom forming portion of the bag blank but is overlapped with the bag mouth forming portion of the bag blank. A molten polyethylene resin is applied as one or more filaments or strips extending widthwise of the bags to be manufactured to the opposite outer surfaces of the bag blank in the bag mouth forming portion and to at least one outer surface of the bag blank in the bag bottom forming portion, and immediately thereafter the applied molten polyethylene resin is cooled under pressure to embed the synthetic fibers or synthetic resin of the bag blank into the applied polyethylene resin and to solidify the latter.
REFERENCES:
patent: 2380914 (1945-08-01), Billeb
patent: 3196757 (1965-07-01), Samways
patent: 3505140 (1970-04-01), Dunn
patent: 3554368 (1971-01-01), Nagel
Ruby Net Hosoki Kabushiki Kaisha
Weston Caleb
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