How to detect the quality of PE heat shrinkable film

The products of PE heat shrinkable film manufacturers can often be seen in our lives, especially in the transportation industry. It can protect the products, but how do we check the quality of the products? 　　 We are testing The quality of the product can be carried out from several aspects. For example, we need to check whether there are black spots on the surface of the product, especially whether the transparency of the product is relatively bright, and see whether there is damage in any place, and then we need to look at How about the flatness of the heat-shrinkable film? You can take a heat-shrinkable film at random to see if the heat-shrinkable film has wrinkles and signs of shrinkage. Finally, we need the outer packaging of the product, whether there is the name of the manufacturer and the date of production of the product. Finally, in order to save energy, if the product is found to be obviously damaged, it cannot be used. At this time, we can put it in a special garbage collection station. This will not only save energy, but also protect us. Environment. Next: What conditions does a good quality polymer protective film meet?Previous: The main use of polymer protective film