Plastics bags production

Details Plastics bags production Plastics bags production

B - Operations, Transporting

31

B

93/14, 93/38

B31B 23/60 (2006.01) B31B 19/64 (2006.01) B31B 19/84 (2006.01)

Patent

CA 1067324

ABSTRACT OF THE DISCLOSURE Back-seamed plastics bags longitudinally sealed along at least the major portion of their length, especially valved bags, are produced from a folded web by a method in which adjustment of the bag length by simply adjusting the incremental advancement of the web, automatically effects corresponding adjustment of the back seam length.

274596

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