Bottle grade PET is in the petrochemical industry chain, and its main raw materials are PTA and MEG, and the source of the industrial chain is petroleum. PTA and MEG go through a polyester process to generate PET slices. PET slice products are mainly divided into bottle grade PET, fiber grade PET(also known as "polyester", including polyester staple fiber and polyester filament) and film grade PET. Among them, bottle-grade PET has excellent characteristics such as non-toxic, tasteless, good transparency, high strength, light weight, good barrier performance, easy to process and stable size, etc. As packaging materials, it is widely used in drinking water bottles, carbonated beverage bottles, hot filling beverage bottles, edible oil bottles, sheets and other fields
PET is a polyester material, the lowest grade is 1 (generally disposable), if it is more than 3, it is generally used for repetitive products or edible utensils. No. 1 PET polyethylene terephthalate is commonly found in mineral water bottles, carbonated beverage bottles, etc. When the temperature reaches 70°C, it is easy to deform, and there are substances that are harmful to the human body. After 10 months of use, No. 1 plastic may release the carcinogen DEHP. This kind of bottle can not be placed in the car in the sun, can not contain wine, oil and other substances. The number 1 on the bottom of the bottle tells you that the material of the bottle is PET, which can only be used once. Repeated use will precipitate DEHP, which is harmful to human body.
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