Process and apparatus for forming a plastic film

Details Process and apparatus for forming a plastic film Process and apparatus for forming a plastic film

B - Operations, Transporting

29

C

18/528

B29C 47/88 (2006.01) B29C 47/00 (2006.01)

Patent

CA 1162371

13131 PROCESS AND APPARATUS FOR FORMING A PLASTIC FILM ABSTRACT OF THE DISCLOSURE A plastic film is formed by annealing a molten tubular film in a first enclosed space and immediately thereafter directing cold air perpencidular to the axis thereof and expanding and solidifying the film in a second enclosed space while in contact with cold air flowing parallel to film travel. S P E C I F I C A T I O N

378610

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