Process for the production of embossed films based on...

Details Process for the production of embossed films based on... Process for the production of embossed films based on...

B - Operations, Transporting

29

C

B29C 59/04 (2006.01) B32B 17/10 (2006.01)

Patent

CA 2580302

The invention relates to a two-stage process for the production of a structured film based on partially acetalated polyvinyl alcohol with roughnesses of the surfaces, independently in each case, of R z = 20 to 80 µm by embossing the sides of the film between correspondingly roughened embossing rollers and pressing rollers with a certain Shore A hardness. The temperature of the film and the rollers is adjusted in order to fix the structure.

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