In the early days, polyester filament was mainly used in silk clothing. With the development of various processing technologies, polyester filament has been expanded to the entire clothing field such as wool-like, linen-like, and cotton-like, and has also developed into the fields of decoration, industry and non-fiberization. . Especially recently in Japan, new synthetic fibers made of polyester filament are popular in the clothing industry. The so-called new synthetic fibers are synthetic fibers that have a new, unique style and feel that surpasses any natural fiber. It has changed people's concept of dressing, and has risen from warmth and beauty to comfort, health, novelty and artistry. Thus, the use of polyester filament becomes more extensive.

Apparel: The traditional use of polyester filament is to imitate silk for women's shirts, men's and women's outerwear, skirts, pajamas and scarves. The fine and special filaments are strongly twisted before being deformed, and can be made into soft imitation silk, which is suitable for high-end dresses and "grandma shirts" worn by middle-aged and elderly women. Coarse and special textured yarn can be made into wool fabrics for suits, outerwear and ties, but the dimensional stability of its knitted fabrics is not ideal. Blended yarns are mainly used in men's clothing, children's clothing and sportswear.
Bedding: used as quilt covers, pillowcases, sheets, bedspreads, mosquito nets, tablecloths and cotton wool, etc.
Decorative use: used as sofa cloth, furniture cloth, curtain cloth, window screen cloth, wall cloth, carpet, poncho, umbrella cloth and car interior decoration cloth, etc.
Industrial use: used as sewing thread, cord, conveyor belt, canvas, geotextile, filter cloth, tent, net and rope, etc.
Non-fibrous use: artificial suede made of ultra-fine polyester filament, used for fur coats, leather jackets, women's tops, etc.