Theoretically opp plastic film, if the surface tension is less than the object 33 dynes / cm, ordinary ink or adhesive can not be attached to a solid hdpe plastic film, it is necessary to deal with the surface thereof. Polyesters (PET, PBT, PEN, PETG) belongs to a polar polymer plastic film, the surface free energy higher bopp plastic film, the surface wetting tension above 40 dynes / cm. But for high-speed color printing or vacuum aluminum layer to increase adhesion with the film surface between BOPET, BOPET film is also required to be surface-treated to further enhance its surface wet tension. Therefore, printed with ink made of polyvinyl chloride resin. Suitable for bags, book covers and the like. PS film is soft and tough film, clean, colorless and transparent, when free of plasticizers, the film is always soft, resistant to freezing, storage aging, oxidative polymerization using synthetic binders ink printing, make Imprinted fastness. Plastic film, red plastic factory, plastic film prices by Xiong red plastic factory. Red Xiongxian plastics plant (tztz89647.ynshangji.com) strong, credible, in Baoding plastic materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the red plastic factory and you hand in hand into the brilliant, for a better future!