Properties And Use Of Polyester Films
Polyester film (PET) is a polyethylene terephthalate as raw material, the use of extrusion made of thick film, and then by the two-way stretch made of thin film material. Polyester film environmental film PET film milky white film and other printing and packaging supplies, widely used in glass industry, building materials industry, the printing industry, medicine and health. Polyester film also known as polyester film film polyester film photosensitive paper polyester film benzene tin film cellophane from the film.
Polyester film is a polymer plastic film, because of its comprehensive performance and more and more by the vast number of consumers of all ages. As China's production and technical level still can not meet the needs of the market, some still need to rely on imports.Polyester Film
It is usually a colorless, transparent, glossy film (now available with additive particles to give it color), excellent mechanical properties, rigidity, high hardness and toughness, puncture resistance, abrasion resistance, high temperature and low temperature, chemical resistance, Oil resistance, air tightness and good fragrance, is commonly used barrier composite film substrate, but the resistance to corona is not good.Polyester Film
Polyester film price is higher, the thickness is generally 0.012mm, commonly used for cooking packaging of the outer material, printing is better. But also because of the complexity of polyester film and difficult to judge, to the customs supervision brought a lot of difficulties.Polyester Film
Different manufacturers according to the quality of polyester film can be different classification name, China's manufacturers are generally divided into excellent products, first-class goods and qualified products, and foreign manufacturers are generally divided into A-class products, B-class products and C-class products. General manufacturers of products sold in the A-class products accounted for 97-98%, B-class products accounted for only 2-3%, C-class product that is not qualified, not on the circulation of sales. The main reason is the high price of raw materials, the general manufacturers to return to the furnace as a raw material to use, or as a short fiber sold to textile mills for textile raw materials. Foreign manufacturers sometimes also quarterly or every six months of the stock film when the B-class goods sold, this approach is the practice of some manufacturers in Southeast Asia, the purpose is to reduce inventory.Polyester Film