Introduction to the use of plastic film
Plastic films are the most widely used in packaging. Plastic film can be used for food packaging, electrical product packaging, daily necessities packaging, clothing packaging and so on. They have one thing in common, that is, color printing is required for plastic films, and as food packaging, processes such as multi-layer lamination or vacuum aluminum plating are also required.
Therefore, it is required that the surface free energy of the plastic film should be high and the wet tension should be large, so as to facilitate the firm adhesion of the printing ink, adhesive or aluminized layer to the plastic film; during the production and high-speed packaging of the plastic film, the The surface of the film is required to have a certain friction property to prevent the film from sticking or slipping; when it is used in the packaging of electrical appliances, electronic products, etc., the film is required to have certain anti-static properties and so on.