Classification And Quality Factors of PET Protective Film

PET protective film is also known as high-temperature resistant polyester film. It has excellent physical properties, chemical properties, dimensional stability, transparency, recyclability, and can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration and other fields. PET protective film is a more common kind of protective tape on the market. The most significant feature of PET protective film is that it is relatively hard and scratch-resistant. And it will not turn yellow and oil like PVC material after long-term use.

What are the main factors that depend on the quality of PET protective film?

PET protective film material is transparent and colorless, the surface has been hardened, generally PET protective film material according to the different origins, the hardening value of the surface is between 3H-4H, the better the surface hardening, the stronger its wear resistance. Light transmittance is also the main property of PET protective film material, generally the light transmittance is more than 90%, and the high light transmittance not only makes us have a good visual effect when using related instruments, but also has a good protective effect on the eyes.

PET protective film manufacturers use a lot of PET protective film, PET protective film manufacturers are a commonly used release material in adhesive, electronic, die-cutting, printing and other industries, what are the factors that affect PET protective film? PET protective film manufacturers tell you that the main factors that affect the quality of PET protective film are as follows：

1. Substrate: The quality of the substrate directly affects its performance.

2. Residual adhesion rate: Residual adhesion rate refers to the force of the release paper after the first peeling and the second peeling, and the data obtained after calculation mainly reflects the curing effect of silicone oil.

3. Peeling force: The size of the peeling force directly affects the performance of PET release film.

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