A release silicone oil layer is applied on the film-coated surface of the base film to facilitate the separation of the base film from the zero-s film.Before coating,the release silicone oil layer is subjected to low-energy electron beam scanning treatment,enabling the release silicone oil layer to adsorb electrons.These electrons can combine with the oil-based adhesive surface to form a mutually repulsive and uniform spreading effect. Meanwhile,an oil-based leveling agent is selected to significantly reduce the surface tension of the film surface.These two aspects jointly enhance the leveling effect,allowing the oil-based adhesive to spread on the surface of the base film with a uniform thickness and improving the film-forming consistency of the zero-s film.