Plastic films can be seen everywhere in our life, such as fresh-keeping films and document bags in supermarkets, or greenhouse films and agricultural films in farms.

Plastic film refers to the film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, which is used for packaging and film covering. The output of plastic film in China accounts for about 20% of the total output of plastic products, which is the category with the fastest growth in the output of plastic products. In terms of the application fields of plastic films in China, the packaging industry has the largest consumption, the largest variety and the widest application, accounting for about 65%, followed by agriculture, accounting for about 30%, and the rest are various industrial films.