Fibers can be classified in a variety of ways.  It is still one of the most convenient and appropriate classifications of fibers based on whether they are

POY yarn is a type of yarn that, in terms of the type of polymer structure, is a partially oriented molecular chain (Partially Oriented Yarn) that is used as a

 Texturing is a process performed on filament yarn.  Thus, filament yarn, which is produced by spinning or non-spinning method, is a smooth,