How to control the transparency of PE heat shrinkable film?

The transparency of PE heat shrinkable film is critical to the quality of the product. Here, the PE heat shrinkable film manufacturer will introduce to you how to improve the transparency of PE heat shrinkable film. Now let’s take a closer look? 　　 PE heat shrinkable film is a crystalline material , Easy to crystallize, if it is not cooled quickly, transparency and elongation at break will be reduced. Blow molding has poor cooling effect, high crystallinity, and low film transparency. Due to blowing, drawing, and serious molecular orientation, resulting in low elongation at break; while casting production has good cooling effect, low crystallinity, good transparency, and low orientation, so the elongation at break is high and the shrinkage is good. Need to add an appropriate amount of anti-fogging agent on the basis of the above, add a transparent nucleating agent.　　In order to prolong the service life of the product, it is necessary to buy it from a more serious and regular manufacturer, which can extend the service life of the product and save costs. Next: The use of polymer protective filmPrevious: How to choose a polymer protective film