The important role of PET release film in the production of double-sided tape-film supplier

PET release film plays an important role in the production of double-sided tape. If die-cut double-sided tape requires release film, the key characteristics of release film are coating uniformity, high residual adhesion, flatness and high cleanliness 1. High residual adhesion: In addition to the silicone oil formula, coating conditions and substrate processing conditions, the residual adhesion should be affected by the technical services of the silicone oil factory. 2. Coating uniformity: PET release film should be coated evenly. In addition to choosing an appropriate solvent, controlling the concentration and viscosity of the coating agent and the volatilization time of the solvent, the coating equipment is very critical, most of the domestic The coating factory has not been very good at controlling solvent-based silicone oil. Rainbow phenomenon usually occurs. In addition to the technical and analytical power of coating to strengthen its own technology, the technical services of the silicone oil plant also need to be strengthened. 3. Cleanliness: There are several parts to control to improve the cleanliness of the product. The first is the cleanliness and dust removal device of the base film, the second is the setting of the dust-free workshop, and then the dust removal setting of the slitting equipment to improve the cleanliness of the product. It can also reduce the occurrence of heavy peeling of the release film. 4. Flatness: Coating flatness coating equipment is very critical. In addition, the deployment of silicone oil is also very critical. Most of the domestic coating plants are solvent-based The control of silicone oil is not very good; the transparent PET release film is a kind of packaging film with more comprehensive performance. It has good transparency and luster; it has good air tightness and fragrance retention; it has medium moisture resistance, and its moisture permeability decreases at low temperatures. PET film has excellent mechanical properties, and its toughness is that of all thermoplastics, its tensile strength and impact strength are much higher than ordinary films; it has good stiffness and stable dimensions, and is suitable for secondary processing such as printing and paper bags. PET film also has excellent heat resistance, cold resistance and good chemical resistance and oil resistance. However, it is not resistant to strong alkalis; it is easy to be charged with static electricity, and there is no proper anti-static method. Therefore, attention should be paid when packing powdery articles. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire!