Heat shrink film is used for the sale and transportation of a variety of products, the main function is to stabilize, cover and protect the product. The shrinkfilm must have high puncture resistance, good shrinkage and certain shrinkage stress. Heat shrink film classification is numerous, applied in various fields, then PE, PVC, POF heat shrink film what are the differences?
PE, PVC, POF heat shrink film what are the differences
PE film is a very tough material, not easy to use ordinary plastic shredder shredder crushing. Because the PE membrane is soft and tough, it is not easy to chop, not to mention high temperature of the tool under high speed, will make the LDPE melt adhere to the blade. PE’s granulation, can be directly into a strip into the extruder feed, relying on the shear force of the screw to drag the PE membrane into the barrel heating melt extruded granulation. PE recycled primary materials, still blowable film, used in non-food and pharmaceutical packaging, but also widely used in the production of Oxford leather and tarpaulins.
PE heat shrink film is widely used in liquor, cans, mineral water, a variety of beverages, cloth and other products of the whole collection packaging, the product is flexible, impact-resistant, tear-resistant, not easy to break, not afraid of tide, shrinkage rate.
PVC (polyvinyl chloride), plus ingredients to enhance its heat resistance, toughness, ductility, etc. The upper most layer of this surface film is paint, the main component in the middle is PVC, the bottom layer is the back coating adhesive. It is a kind of synthetic material which is popular, popular and widely used in the world today. PVC is the most suitable material for materials that can produce three-dimensional surface films.
Due to PVC’s unique properties (rain, fire resistance, anti-static, easy to form) and PVC low input and high yield characteristics, PVC heat shrink film is widely used in the building materials industry and packaging industry, therefore, PVC film has high transparency, good gloss, high shrinkage and so on.
POF is the meaning of heat shrink 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 layer, through three extruder strusigopers, and then by mold molding, membrane foam ingagping and other special processes processed.
POF is a kind of heat shrink film, mainly used in packaging rules and irregular shape of products, because of its non-toxic environmental protection, high transparency, high shrinkage, good heat seal performance, high gloss, strong toughness, anti-tear, heat shrinkuniform and suitable for automatic high-speed packaging and so on, is the traditional PVC heat shrink film replacement products, 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 videotapes and other products.