With the development of market demand, the demand for PET film and PET release film in industrial production is increasing. There are more and more companies producing PET film and PET release film in China, and with it comes the transparency of the market. I won't talk about PET film here. After all, it is not a special use requirement. The domestic technology basically meets the conventional use, and the quality difference is not big. Here I will tell you about the PET release film.

I believe that many purchasing friends have asked the unit price of many companies. The price of PET release film is often very different. Many friends here are very strange. In fact, this point needs to be analyzed from the use of PET release film. The gap between ordinary isolation film and optical grade PET release film is very large. In fact, PET release film is basically an industrial consumable, and rarely appears on the product. The common uses are as follows:

1. Substrates for the label and tape industry.

2. The tape casting process of polymer materials is used for carrier tape applications, such as microelectronic components.

3. Photoelectric die-cutting and punching industry applications.

4. Lamination process application in various multilayer printed circuit board industries

5. Production and application of cover film and pure adhesive film

6. PCB/PCL application

From the difference of its process, we can see that the quality requirements of PET release film are different in various situations. For example, the requirement of ordinary die-cutting and punching for PET release film is uniform thickness and stable peeling force. On the basis of peeling force, the optoelectronic industry has more requirements such as transparency and temperature resistance. In addition to the temperature resistance of some polymer materials, the corrosion resistance of chemical reagents, the stability of silicone oil, and the non-reaction with other chemical products should also be considered.

       It is because the process of various industries is different, and the quality requirements for PET release film are also different. Ordinary PET release film only needs to use ordinary PET film, and the optoelectronic industry uses optical grade PET film as the base material. The coating process is also much more precise than the ordinary PET release film coating process, and the requirements for equipment are also higher. As a result, the price of optical grade PET release film is also much higher than that of ordinary PET release film. In the process of purchasing, all businessmen must first understand their own process and order suitable products according to their requirements, rather than requiring the best quality, resulting in unnecessary waste.