How to choose a suitable one among the many shrink film manufacturers?

How to choose a suitable one among the many shrink film manufacturers? As the types of shrink film products on the market increase, there are also uneven quality. When we buy, we can identify them in a few simple ways. Because PVC shrink film has high strength, if it is torn open with bare hands, a lot of force is needed. Generally, the strength of real PVC shrink film is more than twice that of fake PVC shrink film. You can also put it in the palms of your hands and rub it back and forth to bond them together, and then separate them. Pay attention to the viscosity during this process. Generally, the higher viscosity is true PVC shrink film. You can also roll it up and ignite one end with a lighter. During the burning process, pay attention to observe the burning situation. Generally, the flame is low, and even the one that is not easy to burn is the real PVC shrink film, and the opposite is the fake. First of all, we can look at the transparency and gloss. A high-quality PVC shrink film has better transparency and good gloss. If you look under the sun, it will not contain too many impurities and is relatively clean. Secondly, a good quality PVC shrink film has a fast shrinkage capacity when passing through a hot PVC shrink film packaging machine; while a poor quality PVC shrink film cannot shrink well. Thirdly, the airtightness of high-quality pvc shrink film is very good. After the heat shrinking process is completed, it is very beautiful and truly achieves the shrinking effect we want. In addition, the high-quality pvc shrink film has high puncture resistance and will not be easily punctured.