A method of protecting metal foil substrates

Details A method of protecting metal foil substrates A method of protecting metal foil substrates

H - Electricity

05

K

H05K 3/00 (2006.01) B29C 63/00 (2006.01) B32B 7/06 (2006.01) B32B 15/08 (2006.01) B32B 15/20 (2006.01) H05K 3/02 (2006.01)

Patent

CA 2509397

An improved method of an apparatus for producing novel preferably thin plastic protective or masking film layer products (2) for thin shiny copper foils (1) and the like, as for PCB applications and the like, with an inner releasable film surface coating (2~~) carrying a permanent electric-charge for adhering to the shiny foil surface (1~), but with the opposite outer surface (2~) of the film being maintained uncharged and electrically neutral.

L'invention concerne un procédé et un appareil améliorés permettant de produire de nouveaux produits (2) de couche de film protecteur ou de masquage, de préférence, en plastique mince, destinés à des feuilles de cuivre t(1) brillantes et minces et analogues, telles que celles destinées à des applications PCB et analogues. Un revêtement intérieur (2'') de surface de film détachable supporte une charge électrique permanente afin d'adhérer à la surface de feuille (1') brillante, la surface extérieure (2') opposée dudit film n'étant pas chargée et électriquement neutre.

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