Polyester fiber is a synthetic fiber made from purified terephthalic acid (PTA) and monoethylene glycol (MEG). It is a category of polymers that contain the ester functional group in their main chain. Polyester fibers have good chemical and physical properties that make them useful for a wide variety of applications. https://hallbook.com.br/blogs/443045/Polyester-Fiber-The-History-Manufacturing-Process-and-Applications