Release film

Abstract

The invention discloses a release film, relating to a release film applied to electronic industry or automobile industry, and provides the release film which has fixedly bound coating and can not be torn by adhesive film coating with larger adhesion. The release film comprises a transparent polyester film served as a substrate, the surface of the polyester film is a plane processed by corona and provided with a plurality of even microscopic recesses, the surface is provided with a silicon coating, the bottom surface of the silicon surface penetrates into the microscopic recesses on the surfaceof the polyester film, and the silicon coating is fixedly connected with the polyester film by the microscopic recesses after solidification. In the invention, corona processing is carried out on thesurface of the polyester film to lead the surface of the film to form a plurality of microscopic recesses, the coating on the release film is bound with the polyester film more fixedly and reliably by the microscopic recesses, and the binding force is even and uniform and is greater than the binding force between the silicon coating and the adhesive film. The content of silicon in the silicon coating can be regulated to regulate the magnitude of stripping force between the silicon coating and the polyester and the adhesive films of the release film body.

Description

technical field [0001] The invention relates to a release film used in the electronics industry or the automobile industry. Background technique [0002] As cars enter millions of households, the amount of thermal insulation film on car windows has increased significantly; in order to ensure the purity of the surface of the film, a layer of release film needs to be attached to the adhesive surface of the film before use to protect the film Insulation layer or reflective layer on top. When in use, peel off the release film. This requires the release film to have the following characteristics: certain adhesion and uniform peeling force, and it should have better adhesion and peeling performance even at the edge where the release film and the sticking film are combined. At present, the coating on the surface of the release film is mainly combined with the adhesive film. This solution makes the adhesion between the release film coating and the release film base layer poor. Whe...

AI Technical Summary

Problems solved by technology

At present, the coating on the surface of the release film is mainly combined with the adhesive film. This solution makes the adhesion between the release film coating and the release film base layer poor. When peeling off, the coating on the release film The layer will be taken away by the film with greater adhesion and bonding force, and a part of the film will form a release film coating area that is difficult to clean up, destroying the overall purity and consistency of the film

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