Today, PET is mainly made from a combination of ethylene glycol with terephthalic acid with the help of heat and catalyst, which is a linear polymer and resistant to solvents. PET physical and chemical properties, such as high mechanical strength, transparency, transparency. Its light weight, safety, and toxicity against CO 2 make it widely used in photography, beverage bottles, and fiber. It is also used in the production of continuous fibers of BCF and industrial yarn and Staple, POY textiles and clothing. Due to the ineffectiveness of PET in taste and resistance to heat, it is also used as food packaging.