POF shrink film is widely used in industry and life, POF shrink film in food or other items can play its function in packaging, today we will introduce the method of detecting the heat treatment of POF shrink film:
1, POF shrink film is only qualified shrink film if it can still maintain a stable posture under high-temperature working conditions.
2, good POF shrink film to go through 500 degrees of high-temperature testing, in the case of different temperatures to let it work under the packaging, to detect whether it has the phenomenon of dissolution if there is proof of POF shrink film product quality is not good if all normal POF shrink film can be put into use.
3, in different temperatures on the POF shrink film test packaging, if the packaging is normal, there is no packaging is not firm on the heat treatment of POF shrink film qualified.