Polyester materials such as PTA and EG are converted to gel polymer through polymerization performed at a high temperature and pressure. After the spinning and drawing process, polymer becomes staple fibers when cut short into the form of cotton or filament yarns when made into the form of yarn.

Filament yarns are mainly used for clothing and interior design. By adding the "emotion" of natural fibers, such as silk, wool and linen, on top of the advantages of synthetic fibers, filament yarns can be used as materials of various apparel items, such as suits, casual and innerwear. In addition, products with various features, such as quick absorbency and drying, anti-bacteria and deodorization, UV block and ultralight weight, are materials optimized for outdoor and sports wear.

Huvis filament yarns are used in many other interior and household items, including cotton, carpet, furniture and bedding.