What kinds of materials make up POF film？

POF full name multi-layer co-extruded polyolefin heat shrink film, it is the linear low-density polyethylene as the middle layer (LLDPE), co-polypropylene (pp) as the inner and outer layers, through the three extruders plasticizing extrusion, and then through the die head molding, POF film bubble blowing and other special processes. Now the better is a five-layer co-extruded, three layers of PE join two layers of PP.

POF film is a kind of heat shrink film, mainly used for packaging regular and irregular shape products.

Because of its non-toxic environmental protection, high transparency, high shrinkage, good heat sealing performance, high surface gloss, good toughness, tear strength, heat shrinkage uniformity and suitable for fully automatic high-speed packaging and other characteristics, widely used in automotive products, plastic products, stationery, books, electronics, circuit boards, MP3, VCD, handicrafts, photo frames and other wood products, toys, insecticides, daily necessities, food, cosmetics, cans of beverages, dairy products, pharmaceuticals, cassette tapes and video tapes.

POF film is the meaning of heat shrinkable film, POF full name of multi-layer co-extruded polyolefin heat shrinkable film, it is the linear low-density polyethylene as the intermediate layer (LLDPE), a total of polypropylene (pp) as the inner and outer layers, through the three extruders plasticizing extrusion, and then by the die forming, film bubble blowing and other special processes and processing. English full name: Polyolefin (POF) Generally speaking, heat shrinkable film is POF, or Polyolefin Shrink Film can be packaged regular and irregularly shaped products. Such as: automotive products, 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, pharmaceuticals, cassette tapes and video tapes and other products. The heat shrinkable film is designed by the principle of stretching and orienting the molecular chain of the high fetch material, and is molded by the method of rapid cooling and shaping. The physical principle is: when the polymer is in a highly elastic state, it is stretched and oriented, and then the polymer is cooled to a temperature below the glass transition temperature, the molecular orientation is frozen, and when it is heated during the packaging process, the molecular movement produces stress relaxation and the molecules return to their original state, resulting in shrinkage. The potential for applications in the following areas is considerable.