Background

Polyester is a synthetic fiber derived from coal, air, water, and
petroleum. Developed in a 20th-century laboratory, polyester fibers are
formed from a chemical reaction between an acid and alcohol. In this
reaction, two or more molecules combine to make a large molecule whose
structure repeats throughout its length. Polyester fibers can form very
iong molecules that are very stable and strong.

Polyester is used in the manufacture of many products, including clothing,
home furnishings, industrial fabrics, computer and recording tapes, and
electrical insulation. Polyester has several advantages over traditional
fabrics such as cotton. It does not absorb moisture, but does absorb oil;
this quality makes polyester the perfect fabric for the application of
water-, soil-, and fire-resistant finishes. Its low absorbency also makes
it naturally resistant to stains. Polyester clothing can be preshrunk in
the finishing process, and thereafter the fabric resists shrinking and
will not stretch out

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