The release film is coated with silica gel release agent on the surface of environmental protection material PE/OPP/PET film to enable it to show a very light and stable release force. It is used for various organic pressure sensing adhesives, different organic pressure sensing adhesives, such as Hot-melt adhesive, pressure adhesive, rubber system pressure sensing adhesive, etc The required release force of the release film varies, and the release film is also known as peel off film, isolation film, separation film, release film, silicone oil film, and anti mucosal film. In the daily production of Double-sided tape,PET release film plays an important role in tape production.

For example, die cutting double-sided tape requires release film, which is characterized by coating uniformity, high residue, smoothness and high cleanliness.

1. High residual durability: In addition to the silicone oil formula, coating conditions, and substrate treatment conditions, it is also necessary to strengthen the technical services of the silicone oil factory.

2. Coating uniformity: The PET release film should be evenly coated. In addition to selecting appropriate solvents and controlling the concentration, viscosity, and solvent evaporation time of the coating agent, the coating equipment is very important. Most domestic coating factories do not have good control over solvent based silicone oil. Rainbow phenomenon usually occurs. The technical services of silicone oil factories also need to be strengthened, in addition to coating to enhance their own technical and analytical capabilities.

3. Cleanliness: In order to improve the cleanliness of the product, there are several parts that need to be controlled. Firstly, it is the cleanliness of the base film and the dust removal device, followed by the establishment of a dust-free workshop, and then the dust removal device of the slitting equipment to improve the cleanliness of the product. In fact, it can also reduce the weight peeling of the release film.

4. Flatness: Coating flatness is very important for coating equipment. In addition, the deployment of silicone oil is also very important. Most domestic paint factories do not have good control over solvent based silicone oil.

Transparent PET release film is a packaging film with comprehensive performance. It has good transparency and luster; Having good airtightness and aroma protection; Moderate moisture resistance, reduced low-temperature moisture permeability.

It has excellent mechanical properties, and its strength and toughness are far higher than those of ordinary films in terms of tensile strength and impact strength among all thermoplastic materials; Moreover, it has good strength and stable size, suitable for secondary processing such as printing and paper bags. It also has good heat resistance, cold resistance, chemical resistance, and oil resistance. But it is not resistant to strong alkalis; It is prone to generating static electricity and there is no suitable anti-static method, so it is important to pay attention when packaging powder.