How to detect the heat treatment of POF shrink film

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 we will introduce the method of detecting the heat treatment of POF shrink film: 　1, POF The shrink film is qualified only when 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 that the heat treatment of the POF shrink film is qualified.　　 This is the end of the introduction about the heat treatment of POF shrink film. We will continue to introduce the content in the later period. If you want to continue to understand, please continue to pay attention to this site. OF: an upper DR: seal strength improved method of shrink film pof