PET release film is a commonly used material for heat transfer printing, and the substrate is PET, also known as silicone oil film, is made by coating with silicone oil. The characteristic of PET reflective film is that it has excellent optical properties, smooth and clean surface, good thermal stability, low shrinkage rate, and light aging resistance.

As the market needs to develop,The demand for PET film and release film in industrial production is increasing. There are more and more domestic companies producing PET films and release films, followed by a transparent market situation. I won't say much about PET film here, after all, it is not a special requirement for use. Domestic technology basically meets conventional uses, and the quality difference is not significant.

In fact, PET release films are basically industrial consumables and rarely end up in products. Common uses include the following:

1. Application of tape casting technology for polymer materials, such as microelectronic components

2. Substrates for the label and tape industry

3. Application of Lamination Technology in Various Multilayer Printed Circuit Board Industries

4. Production and Application of Covering Film and Pure Adhesive Film

five、PCB/PCL application

6. Application of Optoelectronic Die Cutting and Punching Industry

From the different processes, we can see that various situations also have different quality requirements for PET release films:

The requirement for PET release film in ordinary die cutting and punching is uniform thickness and stable peeling force.

The optoelectronic industry has added requirements for transparency and temperature resistance on the basis of stripping strength.

Polymer materials should not only have temperature resistance, but also take into account the corrosion resistance of chemical reagents, the stability of silicone oil, and the non reaction with other chemical products.

PET release is used as a substrate in the optoelectronic industry, and the coating process is much more precise than ordinary release film coating, requiring higher equipment requirements. So the price of the optical level PET release film is also much higher than that of ordinary PET release film. During the procurement process, all enterprises must first understand their own process and order suitable products according to their requirements, rather than relying solely on the best quality, which can lead to unnecessary waste.