Process for preparing a web of film prior to winding it into...

Details Process for preparing a web of film prior to winding it into... Process for preparing a web of film prior to winding it into...

B - Operations, Transporting

29

C

18/1054

B29C 67/00 (2006.01) B29C 47/00 (2006.01) B29C 53/32 (2006.01) B29C 59/02 (2006.01)

Patent

CA 1052066

Abstract of the Disclosure This invention relates to a process for continuously preparing an extruded web of flat thermoplastic film for a subsequent winding operation, by providing it with embossed lines, preferably one line along each edge or very near each edge of the web. The embossed lines are applied while the web of film is subjected to tensional forces acting on the edges of the web in the direction of the plane of the web. The embossed and tensioned film is then subjected to a thermal treatment.

208357

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