How to detect the heat treatment effect of POF shrink film

Heat shrinkable film is used for the sales and transportation of various products, and its main function is to stabilize, cover and protect the product. The shrink film must have high puncture resistance, good shrinkage and a certain shrinkage stress. During the shrinking process, the film cannot produce holes. Since shrink film is often used outdoors, it is necessary to add UV anti-ultraviolet agent. , POF shrink film has been widely used in industry and life. POF shrink film can play its packaging function on food or other items. Today, heat shrink film manufacturers introduce the method of detecting the heat treatment of POF shrink film ：　　1. POF shrink film is qualified only if it can maintain a stable posture under high temperature working conditions. 2. A good POF shrink film must be tested at 500 degrees high temperature. Let it be packaged at different temperatures to detect whether it is dissolved. If so, it proves that the quality of the POF shrink film is not good. If everything is normal, the POF shrink film can be put into use.　　3. Test packaging of the POF shrink film at different temperatures. If the packaging is normal and there is no loose packaging, it means the heat treatment of the POF shrink film is qualified. What is the advantage of pof shrink film compared to other packaging films? , The heat shrinkable film manufacturer tells you the nature of the heat shrinkable film