PET protective film is used a lot, PET protective film is a common release material in adhesive, electronics, film cutting, packaging and printing and other manufacturing industries, what are the elements that affect PET protective film? Do you know everything? The demand in China's market is very large, but I don't know that domestic PET protective film due to the backward substrate and silicon coating technology, high-end goods still rely on imports.

First, the substrate: PET release film is to apply silicone release agent on the surface of PET film, and the quality of the substrate immediately affects its performance. Domestic PET film substrates lag behind overseas in the thin and thick manipulation and heat shrinkage levels.

Second, the residual adhesion rate: the residual adhesion rate refers to the force of the release paper after the first peeling, the second peeling, and the data obtained after measurement, which key reflects the actual effect of silicone oil curing.

Third, peeling force: the size of the peeling force immediately affects the characteristics of PET release film, and the general national standard peeling force size tolerance range is ±15%.

Fourth, the production and processing environment: with the development of a variety of commodities, the quality and technical improvement, the cleanliness level standards for PET protective film are becoming more and more stringent, especially in the electronic film cutting manufacturing industry.