Process for the improvement of the adhesion of photographic...

Details Process for the improvement of the adhesion of photographic... Process for the improvement of the adhesion of photographic...

B - Operations, Transporting

01

J

204/182, 204/96.

B01J 19/08 (2006.01) B29C 59/10 (2006.01) C08J 3/28 (2006.01) G03C 1/91 (2006.01) H01T 19/00 (2006.01)

Patent

CA 1052728

A PROCESS FOR THE IMPROVEMENT OF THE ADHESION OF PHOTOGRAPHIC LAYERS TO A FILM WEB BY MEANS OF A CORONA TREATMENT ABSTRACT OF THE DISCLOSURE Corona treatment involves the continuous subjection of the film web to a steady alternating current discharge This treatment is carried out in two consecutive stages, the corona discharge frequency f1 in the first stage being in the range f1 = 5 to 100 kHz and the corona discharge frequency f2 in the second stage being in the range f2 = 500 to 2000 kHz.

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