METHOD OF MANUFACTURING DOUBLE SURFACE METALLIZED FILM, AND METALLIZED FILM CAPACITOR USING THE METHOD

摘要

The method of manufacturing double surface metallized insulating film of the present invention comprises vacuum depositing zinc or zinc-aluminum mixture on both sides of insulating film and winding the film to a product roll, wherein oxidizing gas is sprayed to an inner side deposited film when it is wound up. Also, during the deposition, oil layer is formed on at least one side of the film, and the deposited film on at least on one side is exposed to an oxygen-contained atmosphere, or oxygen-contained gas is sprayed to at least one side of the vacuum deposited film in the step of winding the film to a product roll, to form an oxide layer. According to the method of manufacturing of the present invention, the problem of a blocking that occurs as a sticking together and peeling off of the deposited films inside the product roll is avoided.