The function of the release film: In the electronics industry, it is used to protect sensitive surfaces such as displays and touch screens, preventing scratches and contamination.

Printing Industry: Used as a temporary carrier for transferring printing patterns or protecting the printing surface.

‌Composite Materials: In the lamination process of composite materials, release film is used to isolate the layers of materials, preventing adhesion.

‌Tape and Labels: The backing material for tape and labels, facilitating easy peeling during use.

The selection of release film requires considerations of factors such as thickness, release force, and temperature resistance. Common thickness ranges vary from 25 micrometers to 200 micrometers, with release force adjusted according to specific application needs, typically between 5-50g/25mm.