Process for producing plastic foil

Details Process for producing plastic foil Process for producing plastic foil

B - Operations, Transporting

29

C

18/782

B29C 47/06 (2006.01) B29C 47/00 (2006.01)

Patent

CA 1131868

Abstract The invention relates to a process for producing foils or films of plastic material with increased sur- face friction. According to the invention, two or more foils are extruded, laminated and stretched together, the supply of material to the extrusion of the foil or foils which are to form the surface layer being con- trolled in such a way that the amount of plastic mate- rial is insufficient to form a coherent layer when the laminated foil is stretched. In this way the surface layer will break at stretching and give a rough surface with an increased surface friction. :

338458

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