Producing method of film with through-holes

Details Producing method of film with through-holes Producing method of film with through-holes

B - Operations, Transporting

29

D

B29D 7/01 (2006.01) B26D 7/14 (2006.01) B26F 1/24 (2006.01) B29C 55/06 (2006.01) B29C 55/18 (2006.01) B29C 69/00 (2006.01) B41J 2/14 (2006.01) B41J 29/377 (2006.01) B41M 5/26 (2006.01)

Patent

CA 2248466

A film is made of an elastic material. The film is stretched in at least one direction in parallel to a surface of the film. Then, through-holes are punched in the film be means of needles, in a state the film is stretched. After the punching is completed, the stretching is terminated, so that the film recovers its original shape.

Pellicule faite d'un matériau élastique. La pellicule est étirée dans au moins une direction parallèle à sa surface. Ensuite, des trous sont perforés de part en part dans la pellicule à l'aide d'aiguilles, pendant que la pellicule est étirée. Après la perforation, on arrête l'étirage de façon à laisser la pellicule reprendre sa forme originale.

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