Classification Of Polypropylene Fiber

Polypropylene fiber can be divided into long fiber, short fiber, spunbond non-woven fabric, melt-blown non-woven fabric, etc.
Polypropylene long fiber can be divided into ordinary long fiber and fine denier long fiber (single filament fineness ≤ 2.2 dtex), which can be used to produce clothing, decoration and some industrial filament products. Polypropylene long denier fiber has good luster, soft feel and drape. It has good properties and low density, and is suitable for the knitting industry. When interwoven with cotton, viscose, silk, spandex, etc. to form cotton-covered acrylic, silk-covered acrylic and other products, it is an ideal material for making high-end sportswear, T-shirts, etc.
The production process of polypropylene short fiber mostly adopts porous, low-speed, continuous process, that is, short spinning process. Polypropylene short fiber and cotton blends can be made into polypropylene cotton muslin and bed sheets, that is, fiber and viscose blends can be made into blankets, polypropylene pure and blended wool, polypropylene blankets, carpets, and polypropylene cotton cigarette filters. The thickness of fibers used for hygiene products is 1.5-2.5 dtex, while the thickness of fibers used for floor fabrics is 5-10 dtex. The fiber length is 1.5-200.0 mm, depending on the use of the fiber. The length of short fibers used for concrete is 1.5-200.0 mm, the length used for diapers is generally 40.0 mm, and the length used for ground fabrics is 60.0 mm.
Spunbond non-woven fabric, also known as filament non-woven fabric, is made from polypropylene raw materials that are melted and then extruded, stretched, laid, and bonded into shape. It has the characteristics of short process, low cost, high productivity, excellent product performance, and wide range of uses. Polypropylene non-woven fabrics are widely used in various fields of production and life (such as disposable medical and sanitary products, disposable anti-fouling clothing, agricultural fabrics, furniture fabrics, linings in the shoe industry, etc.).
The fibers produced by melt-blown non-woven fabric technology are very fine (up to 0.25 μm). Melt-blown fabric has a large specific surface area, small pores and large porosity, so its application properties such as filterability, shielding and oil absorption are ideal for use. It is difficult for non-woven fabrics produced by other separate processes to possess. Meltblown non-woven fabrics are widely used in medical and health, thermal insulation materials, filter materials and other fields.