What are the detection methods in use release film? Cut a piece of tape and stick it to these films separately. When removed, it feels easy to peel off. During the peeling process, there is also no sound, which is the release film coated with silicon, but it is difficult to peel off. During the peeling process, there is a chirping sound, which is the ordinary plastic film not coated with silicon.

This method can also distinguish whether it is a single silicon release film coated on one side or a double silicon release film coated on both sides, and even compare which side is coated with silicon, the amount of silicon, and the size of the stripping rate.

Use a water pen to test and mark the film surface, no ink can be drawn on the surface, and ordinary films will have ink marks of varying depths. The appearance of plastic release paper and release paper of the same specification cannot be seen, but the above method can also distinguish the difference between them. The appearance of glossy regular paper and release paper may also be very similar, but if they are torn open by hand, regular paper only has fiber hairs at the edge of the tear, and release paper also has some small membranes besides wood fibers.

If tested with adhesive tape, there will be a noise during the process of removing the adhesive tape on the release paper, but nothing will stick to the tape, while glossy regular paper will stick to the coating and wood fibers on the surface of the paper.

Due to the presence of paper fuzz and fibers on the surface of the paper, there is a risk of penetration during the coating of silicone oil. To ensure stable peeling force, plastic coating treatment is generally carried out before coating.

Special reminder: When selecting release film, the die cutting manufacturer should remember to ask the supplier in advance whether the release paper is made of Kraft paper paper or straw pulp paper. Kraft paper is not easy to break edges and has less paper scraps during die cutting.