Polyester is a synthetic fiber derived from coal, air, water and oil. Originally developed in the laboratory from the 20th century, polyester fibers are formed from a chemical reaction between acid and alcohol. In this reaction , two or more molecules combine together to create a large molecular structure repeats throughout its length .
Polyester staple fiber market has softened in Asia , especially in China where the market goes down if PTA and MEG . Meanwhile the fluctuating price of cotton futures market also makes polyester staple fiber is affected negatively .