POF heat shrink film, the full name of which is multi-layer co-extruded polyolefin heat shrink film, is made by using linear low-density polyethylene (LLDPE) as the middle layer and copolymer polypropylene (pp) as the inner and outer layers. It is processed through a five-layer extruder for plasticizing and extruding, and then through special techniques such as die head forming and film bubble expansion.
It is mainly used for packaging products of regular and irregular shapes. Due to its non-toxicity, environmental friendliness, high transparency, high shrinkage rate, good heat sealing performance, high gloss, strong toughness, tear resistance, uniform heat shrinkage and suitability for fully automatic high-speed packaging, it is the successor product of traditional PVC heat shrink film and is widely used in automotive supplies, plastic products, stationery, books, electronics, circuit boards MP3 players, VCDS, handicrafts, photo frames and other wooden products, toys, pesticides, daily necessities, food, cosmetics, canned beverages, dairy products, medicine, cassette tapes and video tapes and other products.
