At present, shrink film technology has been developed and can be used to package various commodities. Protective performance of PVC heat shrinkable film packaging: During the production process, the PVC shrinkable film is directionally stretched, and the shrinkable film will shrink during preheating during use. The PVC heat shrinkable film can be made into a cylindrical film and half-folded film according to customer requirements. It can also be processed into various special-shaped bags such as curved bags, flat bags, U-shaped bags, etc.

Five-layer co-extruded PVC heat shrinkable film is a new type of packaging alternative product that has gradually emerged and been accepted by people in recent years. Environmentally friendly co-extruded polyolefin PVC heat shrinkable film is a heat shrinkable film with linear low-density polyethylene (LLDPE) as the middle layer and polypropylene (PP) as the inner and outer layers. It has the characteristics of high transparency, high shrinkage rate, and good heat sealing performance. It also has the advantages of polyethylene (PE) and polybutene (PP), and its specialized properties are far superior to pure polyethylene (PE) and polypropylene (PP) films. PVC heat shrinkable film has been widely used in the world and has been recognized by European and American markets.

PVC heat shrinkable film is made of ethylene PVC resin mixed with more than 10 kinds of auxiliary materials after secondary blow molding. It has good transparency, easy shrinkage, and high strength. It is widely used in doors and windows, aluminum profiles, stainless steel pipes, electronic appliances, daily necessities, handicrafts, building products, audio, and video products, medicine, stationery, toys, plastic hardware, glass ceramics, and other commodities outer packaging, make its appearance more beautiful, improve the product packaging grade, and have dustproof, anti-scratch, insulation and other functions. It is an ideal film packaging material at present.