What factors determine the quality of pet protective film? PET protective film is a kind of release material commonly used in adhesives, electronics, die-cutting, printing and other industries. The Chinese market demand is huge. However, domestic pet protective film is still dependent on imports due to the backward substrate and silicon coating technology. Next, let’s introduce its influencing factors!




(1) Processing environment:
With the increasing progress of various products and the improvement of quality technology, the cleanliness requirements of pet protective film are becoming more and more stringent, especially in the electronic film cutting industry.


(2) Residual adhesion rate:
The residual adhesion rate refers to the force of the release paper after the first peeling and the second peeling. The calculated data mainly reflects the curing effect of the silicone oil.


(3) Peeling force:
The peeling force directly affects the performance of the pet protective film, the general industry standard peeling force tolerance range is ±15%.


(4) Substrate:
The pet protective film is to coat silicone release agent on the surface of the pet film, and the quality of the substrate directly affects its performance. Domestic pet film substrates lag behind foreign countries in terms of thickness control and heat shrinkage.