PET release film is a commonly used material in industries such as adhesive, electronics, die-cutting, printing, etc; China has a large amount of market demand every year. However, due to the outdated substrate and silicon coating technology, domestic PET release films still rely on imports for advanced products. Below, we will introduce the main factors that affect the quality of PET release films:

1、 Substrate: PET release film is a wholesale release agent applied to the surface of 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 thermal shrinkage.

2、 Residual adhesion rate: Residual adhesion rate refers to the force exerted on the release paper during the second peeling after the initial peeling. The calculated data mainly reflects the curing effect of silicone oil.

3、 Peeling force: The magnitude of peeling force directly affects the performance of PET release film, and the general industry standard peeling force tolerance range is ± 15%.

4、 Processing environment: With the increasing progress of various products and the improvement of quality technology, the cleanliness requirements for PET release films are becoming increasingly strict, especially in the electronic film cutting industry.

Of course, there are many factors that affect the quality of PET release films in actual production, and different industries, companies, and processes have different requirements for the use of various types of films.

Reechas Technology is a national high-tech enterprise that integrates research and development, production, and sales. Since its establishment in 2006, the company has relied on advanced research and production advantages to provide various types of release film,  press pads, circuit board auxiliary materials, etc. for various fields such as hard PCB, soft FPC, soft hard combination boards, 5G circuit boards, packaging substrates, CCL, new energy, smart cards, etc.