The types of polyester staple fibers are as follows:

Type specifications:

Cotton staple fiber ~1.5 dtex × 33~38 mm

Medium and long staple fiber ~2.5 dtex × 65 mm

Wool staple fiber 3~9 dtex × 64~114 mm

Top short fiber 3~9 dtex (single fiber)

As one of the five synthetic chemical fibers, polyester staple fiber has many classification standards. The most commonly used in the market is divided into large chemical fiber, medium chemical fiber and small chemical fiber.

Large chemical fiber: polyester staple fiber spun or melt-spun with PET. The color is good, the batch number is large, the strength is stable, the defects are small, and the spinnability is good.

Medium Chemical Fiber: Use external PET chips or PET back spinning. The price quality is between Dahua and Xiaohua (mainly some textile mills are used to enhance the competitiveness of Dahua blending).

Small chemical fiber: spinning with PET. The price and quality are uneven, suitable for export to some markets and fields where the quality requirements are not too high (such as fillers).

In general, the sliver-spun staple fiber has almost no defects, the fiber thickness is uniform, the surface is smooth, and the hand feels smoother (although the short fiber is used wherever it is used, the coarse one has the difference of adding silicon and not adding silicon) If you pull it, the general strength of the slice spinning is better, the batch number is large, there is no color difference, and the physical index is uniform.

Generally, the production of small chemical fiber, or the short fiber produced by recycled raw materials, is small, and the same algebraic feel is not as good as that of large chemical fiber (except for the treatment). There are many defects, occasionally uneven thickness, and ultra-long length is generally objective. The physical indicators of conventional recycled materials are slightly worse.

After understanding the classification of polyester staple fibers, you can better understand their characteristics in order to apply to the corresponding fields.

Hai'an County Qinfeng Chemical Fiber Co., Ltd. mainly produces polypropylene staple fiber and polyester staple fiber: 1.5D to 200D, length 5-150mm, product color sky blue, red, yellow, black, etc., can be customized. Polypropylene staple fiber and polyester staple fiber are rich in variety, support color to map or sample custom, fully meet your individual needs, with an annual output of 20,000 tons, strong strength.

Our polypropylene staple fiber and polyester staple fiber products are mainly used for: sanitary non-woven fabrics, spunlace non-woven fabrics, needle-punched carpets, electric blanket fabrics, filter cloths, geotextiles, automotive decorative fabrics, garment linings, artificial furs, Wool, yarn spinning and other fields. It can also produce functional polypropylene staple fiber and PP short fiber, such as: flame retardant polypropylene fiber, hydrophilic polypropylene staple fiber and so on.