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Plastic protective film surface treatment method
- Sep 21, 2018 -

The plastic protective film is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and some other resins, so it can be used on packaging, such as beverages, foods, etc., especially its composite plastic flexible packaging. Widely used in food, pharmaceutical and chemical industries.


The surface tension of the plastic protective film is related to the free energy of the surface of the plastic protective film, and is related to the molecular structure of the protective film material itself. If the surface free energy is small, the surface wet tension is small. Therefore, under certain application requirements and conditions, surface treatment is required to meet its further processing requirements. On the surface treatment methods, there are corona treatment, chemical treatment, mechanical roughing, and coating, and the most used method is corona treatment.