The main factors that affect the appearance quality of PET release film are as follows (1)-film supplier
1. Coating heads At present, the coating heads widely used by silicon coating enterprises in our country mainly adopt the methods of scraping bar/anilox roller/roller coating/multi-roller coating. It is nothing more than slightly improved appearance performance. Essentially, the improvement is no more than 20%. However, foreign countries use micro-engraved rollers with a certain angle for coating, which has improved transparency from an optical point of view. At the same time, the possibility of rainbow lines is completely eliminated. 2. Coating agent formula composition At present, the product commonly known as 120# solvent oil is widely used by silicon coating companies in China. However, from the perspective of coating PET release film, the better solvent should be toluene, xylene, or even some special solvents. Solvent (the core technology considered here needs to be kept confidential, please understand). Toluene and xylene will cause a certain degree of physical damage to the operators of the production line, and protective measures need to be taken. Silicone release agent and 120# solvent oil are not universally compatible. Some silicone release agents still need special solvents to cooperate with them during use. As for the deeper details, I don't think any coating factory will share it with peers. 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!