The shrink film must have high durability and good shrinkage

The shrink film must have high wear resistance, good shrinkage and a certain shrinkage stress. During the shrinking process, the film must not produce holes. Since shrink film is often used outdoors, it is necessary to add UV anti-ultraviolet agent. The replacement products of traditional PVC heat shrinkable film are widely used in automotive supplies, plastic products, stationery, books, electronics, circuit boards, MP3, VCD, handicrafts, photo frames and other wood products, toys, pesticides, daily necessities, food, cosmetics, Canned beverages, dairy products, medicine, cassettes and video tapes and other products. UV protection is good and bad for the human body. In summer, the sun is very big and the UV index is of course also very high, so we all know to bring an umbrella on our heads. It can prevent direct ultraviolet radiation from damaging the skin. But POF is a kind of heat shrinkable film, which is mainly used for packaging products with regular and irregular shapes. Due to its non-toxic and environmental protection, high transparency, high shrinkage, good heat sealing performance, high gloss, strong toughness, and tear resistance , The characteristics of uniform heat shrinkage and suitability for fully automatic high-speed packaging are why it is necessary to add anti-UV additives to the shrink film? Of course, this is related to the advantages and disadvantages of ultraviolet rays. Let's understand the advantages and disadvantages of ultraviolet light, as well as its effects on the human body. Shrink film PVC heat shrinkable film is mainly made of plastic and paper. This undoubtedly pushes the development of the paper industry to the peak, which makes the cost of the packaging market expand and the price increases significantly, thus promoting the development of the PVC heat shrinkable film industry. This has provided convenience for human life and promoted the harmonious development of society. At the same time, food packaging is the most widely used field of film, which improves commercial value and achieves a win-win situation of mutual encouragement and mutual encouragement. Shrink film is used in the sales and transportation process of various products. Its main function is to stabilize, cover and protect the product. Tianjin shrink film analysis, the effect of ultraviolet rays on the body is good and bad: the advantages of shrink film: A, disinfection and sterilization B, promote bone development C, good for blood color D, occasionally treat some skin diseases E, ultraviolet radiation directly affects the human body The synthesis of vitamin D, there is no sufficient amount of vitamin D without ultraviolet light. For more related knowledge, please click: shrink film