Polypropylene fiber can be divided into long fiber, polypropylene staple fiber, spunbond nonwoven fabric, meltblown nonwoven fabric, etc. Polypropylene long fibers can be divided into ordinary long fibers and fine denier long fibers (monofilament fineness ≤2.2 dtex, which can be used to produce apparel and decoration and some industrial filament products.

Polypropylene fine denier long fiber has good gloss, soft feel, good drape, and low density. It is suitable for knitting industry. It is produced when interwoven with cotton, viscose yarn, silk, spandex, etc. into cotton cover acrylic, silk cover acrylic and other products. Ideal material for sportswear, T-shirts, etc.

The production process of polypropylene staple fiber mostly adopts porous, low speed, continuous process, namely short spinning process. Polypropylene staple fiber blended with cotton can be made into polypropylene cotton cloth and sheets, that is, fiber and viscose blended can be used as blankets, polypropylene pure and blended yarns, polypropylene blankets, carpets, and polypropylene cotton wool filter tips.

The thickness of polypropylene staple fibers for sanitary products is 1.5-2.5 dtex, while the thickness of fibers for floor fabrics is 5-10 dtex. The fiber length is 1.5-200.0 mm, depending on the use of the fiber. The short fiber length used for concrete is 1.5-200.0 mm, the length used for diapers is generally 40.0 mm, and the length used for floor fabrics is 60.0 mm. Spunbond non-woven fabric, also known as filament non-woven fabric, is made of polypropylene raw material by melting, extruding, stretching, laying and bonding.