Differentiated fibers generally refer to chemical fibers that are innovative or have a certain characteristic to conventional chemical fibers. There are many varieties of differentiated fibers, mainly used in clothing and decorative fabrics.
First, from the morphological structure, the differentiated fibers mainly include shaped fibers, hollow fibers, composite fibers and fine fibers.
Shaped fibers are chemical fibers of a particular cross-sectional shape that are spun through certain geometric (non-circular) orifices. Depending on the orifice used, a triangle, a polygon, a trilobal, a multilobal, a cross, a flat, a Y, an H, a dumbbell, etc. can be obtained.
The hollow fiber is a chemical fiber that penetrates the fiber axis and has a tubular cavity. It can be obtained by changing the shape of the orifice. The biggest feature of hollow fiber is its low density and strong warmth. It is suitable for down products, such as high-grade cotton, imitation down jackets, sleeping bags and so on.
The composite fiber is a chemical fiber fiber which is spun by a composite spinning method from two or more polymers or the same polymer having different properties. The composite fiber is made of two polymers, that is, a bicomponent fiber. In addition, there is a fine (denier) fiber, which is a fiber having a small monofilament linear density, which is also called a microfiber. The methods commonly used for spinning fine fibers are: composite spinning stripping, dissolution, conventional melting, superstretching, flashing, and meltblowing. In particular, polyester fine-denier fiber has a dominant position in textile fiber due to its good taking performance. High-fibre fiber has been imitated instead of natural fiber, making the Silk Fabric light, soft, cool and smooth, and ultra-thin. The polyester fabric is treated with alkali reduction, and then subjected to special soft and hydrophilic finishing to obtain the appearance and feel of the real silk.
Second, from the physical and chemical properties, the differentiated fibers have antistatic fibers, high shrinkage fibers, flame retardant fibers and anti-pilling fibers.
Antistatic fibers are less likely to accumulate statically charged chemical fibers. Antistatic fibers are mainly used in the production of dust-free sterile clothing, explosion-proof overalls, carpets, masks and other textiles. The high shrinkage fiber has a boiling water shrinkage of more than 15% of the chemical fiber. Depending on the degree of heat shrinkage, end products of different styles and properties can be obtained. For example, high shrinkage polyester with a heat shrinkage of 15% to 25% can be used to weave various types of enamels, Embossing, and jacquard fabrics; high shrinkage polyester fibers with a shrinkage of 15% to 35%, which can be used for bulky yarns, Blankets, artificial fur, etc.; high shrinkage polyester with a shrinkage of 35% to 50%, used in synthetic leather, artificial Suede, etc. Flame retardant fibers can also be called flame resistant, flame retardant or flame resistant fibers. In the flame only smoldering, the flame itself does not occur, leaving the fire source, smoldering self-extinguishing chemical fiber added with flame retardant components. Its limiting oxygen index value is about 0.3 or more. Flame-retardant fiber is mainly used for spinning children's and elderly clothing, bedding, decorative fabrics, fireproof overalls and ropes, tents, industrial fabrics, etc. with flame retardant requirements.
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