Differentiated fibers refer generally to chemical fibers that are innovative or have certain properties to conventional chemical fibers. There are many varieties of differentiated fibers, mainly used for clothing and decorative fabrics.
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First, from the morphological structure, differentiated fibers are mainly shaped fibers, hollow fibers, composite fibers, and fine fibers.
Profiled fibers are chemical fibers with special cross-sectional shapes that are spun from a given geometry (non-circular) spinneret. Depending on the orifice used, triangles, polygons, trilobes, multilobes, crosses, flats, Ys, Hs, dumbbells, and the like can be obtained.
Hollow fibers are chemical fibers that pass through the fiber axis and have a tubular cavity. It can be obtained by changing the shape of the spinneret. The biggest feature of hollow fiber is its low density and strong warmth. It is suitable for making down products such as high-grade cotton, imitation down jackets, sleeping bags and so on.
The composite fiber is a chemical fiber fiber that is spun by a composite spinning method, in which two or more polymers or the same polymer having different properties are used. Composite fibers are made of two polymers, ie bicomponent fibers. In addition, there is a fine (denier) fiber, which is a monofilament less dense fiber, also known as microfiber. Typical methods for spinning fine denier fibers are: composite spinning, dissolution, conventional melting, super-stretching, flashing, and meltblowing. In particular, polyester fine-denier fiber has a dominant position in textile fibers because of its good handling properties. High-fidelity fibers have been imitated in place of natural fibers, making the imitated silk fabrics light, soft, cool, and slippery. Polyester fabrics treated with alkali reduction, and then a special soft and hydrophilic finishing, can get the appearance and feel of real silk.
Second, from the physical and chemical properties of the division, the differential fiber anti-static fiber, high shrinkage fiber, flame-retardant fiber and anti-pilling pilling fiber and so on.
Anti-static fibers do not tend to accumulate static-charged chemical fibers. Anti-static fiber is mainly used for the production of dust-free aseptic clothing, explosion-proof work clothes, carpets, masks and other textiles. High shrinkage fibers have a boiling water shrinkage of greater than 15% of the chemical fiber. According to the degree of heat shrinkage, different styles and properties of the final product can be obtained. For example, high shrinkage polyester with a thermal shrinkage of 15% to 25% can be used to weave a variety of tanning, embossing, and jacquard fabrics; high shrinkage polyester fibers with a shrinkage of 15% to 35% can be used for bulked yarns, Blankets, artificial furs, etc.; high shrinkage polyesters with a shrinkage of 35% to 50% for synthetic leathers, synthetic furs, etc. Flame-retardant fibers can also be called flame-resistant, flame-retardant or flame-retardant fibers. Only smoldering in the flame, flame does not occur itself, leaving the fire source, smoldering self-extinguishing chemical fiber added flame-retardant components. Its limiting oxygen index value is about 0.3 or more. Fire-retardant fibers are mainly used for spinning children's and elderly's clothing, bedding, decorative fabrics, fireproof workwear, and fire-retardant ropes, tents, and industrial fabrics.