Features of PVC heat shrinkable film heat shrink technology

PVC heat shrinkable films are typically produced by extrusion blow molding or extrusion casting, and then stretched longitudinally and transversely at highly elastic temperatures above the softening temperature and below the melting temperature, or only in one direction and not the other. The former is called biaxially oriented shrink film, and the latter is called unidirectional shrink film. When in use, when the temperature is higher than or close to the shrinkage temperature, it can be packaged with reliable shrinkage force.

PVC heat shrink film is used for the sale and transportation of various products. Its main function is to stabilize, cover, and protect the product.PVC heat shrinkable film has high puncture resistance, good shrinkage and certain shrinkage stress. During shrinkage, the film must not create holes. Since shrink film is often used outdoors, UV protection agents are required.

PVC heat shrinkable film has the characteristics of high flexibility, not easy to break, strong explosion-proof, impact resistance, tear resistance, high tensile strength, etc., and can replace box packaging.The shrinkage rate of PVC heat shrinkable film is large. After shrinking, the item can be wrapped tightly. If it is made into a through-bag (the two ends of the bag are opened), the two ends of the opening can be lifted after heat shrinking. It can hold up to 15 kg and is easy to carry.