Apparatus for producing perforated plastic film

Details Apparatus for producing perforated plastic film Apparatus for producing perforated plastic film

B - Operations, Transporting

29

D

18/1057

B29D 7/01 (2006.01) B26F 1/26 (2006.01) B29C 59/06 (2006.01)

Patent

CA 1243175

ABSTRACT APPARATUS FOR PRODUCING PERFORATED PLASTIC FILM An apparatus for the manufacture of selectively apertured thermoplastic sheet or film, comprising a rotatable molding element means for receiving the film and which means has a predetermined pattern therein wherein as the film is contacted with the rotatable molding element means and a fluid pressure differential is applied to the surface of the film, a desired pattern of perforated areas and non-perforated areas are im- parted to the film with each of said areas being continuous across the web of the film and alternating in the machine direction.

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