Method of and apparatus for making a non-slip plastics film

Details Method of and apparatus for making a non-slip plastics film Method of and apparatus for making a non-slip plastics film

B - Operations, Transporting

29

C

18/523

B29C 47/06 (2006.01)

Patent

CA 1074515

ABSTRACT OF THE DISCLOSURE A method of making a non-slip plastics film, comprises extruding the plastics film and concurrently applying to at least one surface of the film a foaming layer of a plastics material in which voids are formed and thereafter stretching the plastics film with the applied layer in at least one direction to cause the voids to break and to form rough, irregular, netlike protrusions on the plastics film. Apparatus for carrying out this method comprises an extruder provided with a nozzle comprising at least one auxiliary feeding duct for the plastics material to form the foaming layer.

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