What do you mean by polyester, Biology

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Q. What do you mean by Polyester?

Polyester (ES) or polyethylene terephthalate (PET): PET is a very strong transparent glossy film, which has good moisture and gas barrier properties. It is commonly used for carbonated drinks and boil-in-bags. Polyester is a transparent exceptionally strong oriented film. It is mainly used for packaging processed meats, cheese, candy and coffee.

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