Heat shrinkable film manufacturers take you to understand the development of heat shrinkable film

Heat shrinkable film is suitable for the packaging of products in all walks of life. Heat shrinkable film can be packaged in single or small collections, or large trays. It can be seen that heat shrinkable film is becoming more and more important to our lives. Shrink film manufacturers will take you to understand the development of heat shrink film. Let's take a look at the heat shrink film manufacturers. Heat-shrinkable film appeared earlier in Germany, using PVDC, which was used to pack weapons after biaxial stretching to prevent rust. Therefore, heat-shrinkable film has been used in industrial packaging from the beginning of industrial production, and then heat-shrinkable film is used for food packaging, such as PVDC casing film for sausage packaging. The heat shrinkable film has the characteristics of good transparency, good toughness, impact resistance, etc. The characteristics of low water vapor transmission rate are the use of the energy stored in the film when the film is stretched in the longitudinal or transverse direction under high elasticity, and the use of thermoplastic The memory effect of the shape before bidirectional or unidirectional stretching can restore the function of the shape before stretching when it encounters heat again to achieve the purpose of packaging. The heat shrinkable film manufacturer tells you that heat shrinkable film is a specific application example of the memory effect of a wide range of polymers. The above is the heat-shrinkable film manufacturer's introduction to the development of heat-shrinkable film. I hope it will be helpful to you. If you want to learn more about heat-shrinkable film, please continue to pay attention to our website, we will continue Send you more exciting content. OF: an upper xiaohong: POF shrink film having physical properties