What are the characteristics of plastic film?
|Plastic packaging and plastic packaging products occupy an increasing share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging. , frozen food packaging, cooking food packaging, fast food packaging, etc., these products have brought great convenience to people's lives.|
Plastic films are the most widely used in the packaging field. Plastic film can be used for food packaging, electrical product packaging, daily necessities packaging, clothing packaging, and the like. They have one thing in common, that is, the plastic film should be color-printed, and as a food package, it is also required to perform multi-layer composite or vacuum aluminum plating. Therefore, the plastic film is required to have a high free energy and a large wet tension to facilitate the strong adhesion of the printing ink, the adhesive or the aluminized layer to the plastic film; in the production process of the plastic film winding and high-speed packaging, The surface of the film is required to have a certain frictional property to prevent the film from sticking or slipping; when used for packaging of electrical appliances and electronic products, the film is required to have certain antistatic properties and the like.