ZINC-METALLIZED BASE MATERIAL FOR METALLIZED CAPACITOR AND PROCESS FOR ITS PRODUCTION

摘要

A zine-metallized base material for metallized capacitors comprises a base material being composed of a film or of a thin capacitor paper, a vacuum-deposited zinc layer being formed on at least one side of the base material, and a surface protective layer being formed on the vacuum-deposited zinc layer. The surface protective layer is provided to the thickness of 7 to 500 angstroms and is formed by a material which has a vapour pressure of 0.1mmHg at a temperature within the range 150 to 290 deg. C so as to improve humidity resistance.