PET protective film, also known as film high temperature resistant polyester film, has excellent heat resistance, cold resistance, oil resistance and chemical resistance. Its excellent physical, chemical, dimensional stability, transparency and recyclability are widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging and decoration. It can produce mobile phone LCD protective film, LCD TV protective film, mobile phone keys, etc.

Common application fields of polyester film include: 1. photoelectric industry; 2. Electronics industry; 3. Wire and cable industry; 4. Hardware industry; 5. Printing industry; 6. Plastic industry, etc.

Chemical substances, such as transparent, less foggy and high gloss. The invention is mainly used for advanced vacuum aluminized products with mirror surface after aluminizing, which has good packaging and decoration effect. It can also be used for bright BOPET films such as laser anti-counterfeit base films with large market capacity, high added value and obvious economic benefits.

Laser cutting is the most widely used laser processing technology. Its principle is to focus the laser on the material surface to melt or vaporize it. With the relative movement of the laser and the material, a slit is generated on the cutting material to achieve cutting.