New fiber definition

The reason why the new fiber is called the new fiber is mainly that the shape, performance or other aspects of the fiber are different from the original traditional fiber, and in order to meet the needs of production and life, the fiber has been improved in some aspects. The new fiber is the traditional fiber no longer meet the needs of people in some aspects, to solve some of the defects of the traditional fiber came into being under the conditions, it reflects the improvement of people's requirements for textile materials.

New fibre classification

The new fiber can be divided into new natural fiber, new cellulose fiber, regenerated protein fiber, water-soluble fiber, functional fiber, differential fiber, high performance fiber and high sensibility fiber.

1. New natural fibers

The new natural fibers mainly include natural colored cotton and modified wool. Ordinary cotton fabrics need to go through the chemical bleaching and dyeing process to become colorful, and textiles made of natural colored cotton, without chemical dyeing and finishing process can have a colorful color, can be described as the true sense of green products, natural colored cotton is mainly brown, green and brown three series of colored cotton. As people become more and more passionate about green textiles and consumption, great hopes have been placed on the use of natural colored cotton.

Modified wool is through wool deformation treatment, so that the diameter of the wool fiber can be reduced by 0.5-1μm, feel soft and delicate, moisture absorption, wear resistance, heat preservation, dyeing properties are improved, and the luster becomes brighter.

2, new cellulose fiber

The new cellulose fiber is known as the "green fiber" in the 21st century, which has the characteristics of soft feel, good drapiness, silky luster, soaking gas absorption, antistatic and high wet strength. New fibers mainly include Lyocell, model, riche (Lisai) and so on. The new cellulose fiber and other fiber blended products are expanding day by day, breaking through the pattern that viscose fiber is mainly used for woolen fabrics, and applying to the development of worsted products and knitwear to improve the product grade, suitable for the production of women's wear and casual clothing.

3. Regenerative protein fiber

The regenerated protein fiber is made from the dissolved protein solution extracted from natural animal milk or plants by spinning. Among them, soybean protein fiber has low density of monofilaments, low density, high strength and elongation, good acid and alkaline resistance, soft feel, wool-like feel, silk-like soft luster, cotton fiber moisture absorption and moisture conductivity and wearing comfort, wool warmth, but poor heat resistance, the fiber itself is beige. In addition, soybean protein fiber has a wide variety of adaptability, and has a good blending effect with cotton, wool, silk, acrylic, polyester, tencel, etc. Wool type product style is better, women's clothing fabric style is better, cotton type fabric is the ideal medium and thick clothing fabric.

Silkworm pupa protein fiber The pupa protein was purified into a solution and blended with viscose in proportion, and the protein fiber with skin core structure was formed by wet spinning. Fiber has good moisture absorption, air permeability, soft feel, good drappability, but the wet strength is low, the fiber itself is darker yellow, which will affect the color and brightness of the textile.

The waste wool such as pig hair and wool was dissolved, purified and modified, blended with cotton pulp, wood pulp or bamboo pulp solution, nano-sized iron dioxide was added into the spinning, and an antibacterial regenerated protein fiber was prepared by wet spinning.

4, water-soluble fiber

Water-soluble fiber refers to a process fiber of excessive textile fiber, it is the use of a fiber that can be dissolved in water under certain process conditions, most of the fiber is mainly mixed in other fibers, can make textile yarn fabric fluffy yarn thinning, make the fabric soft, light and fluffy, mainly water-soluble vinylon, water-soluble PVA, water-soluble K-II, etc. The main use of companion spinning process.

The advantages of water-soluble fiber co-spinning are: ① low raw material cost, water-soluble PVA fiber. Companion spinning can be ordinary wool spinning low linear density, light and light products; ② High textile efficiency, the use of water-soluble fiber with spinning, spinning break reduced, yarn strength increased, unevenness reduced, defects reduced; ③ The fabric grade is high, and the slippery, fluffy and comprehensive style value (THV) of the fabric are improved after blending with water-soluble fibers.

5. Functional fibers

Functional fibers are divided into three categories: DiYi is the modification of conventional synthetic fibers to overcome their inherent shortcomings; The second category is for the natural fiber and chemical fiber did not have the original performance, through chemical and physical modification means to give it heat storage, electricity, water absorption, moisture absorption, antibacterial, deodorant, aromatic, flame retardant and other additional properties, so that it is more suitable for human wearing comfort and decorative applications; The third type has special functions, such as high-strength, high-modulus, heat-resistant, flame-retardant high-performance fibers. It mainly includes organic conductive fiber, elastic fiber, anti-ultraviolet fiber, antibacterial anti-odor fiber, negative ion fiber, chitin fiber, high moisture absorption fiber and so on. High-function fibers are mainly used in some aspects of production and life, and their functions are particularly prominent in these aspects.

6. Differentiated fiber

It refers to chemical fibers that are different from ordinary conventional properties, that is, after the use of chemical or physical means, its structure, shape and other characteristics are changed, so that it has a certain or a variety of special functions of chemical fibers. It mainly includes cationic high shrinkage fiber, heterotypic fiber, two-component low melting point fiber, composite microfiber, high absorption wet fiber, anti-pilling, colored fiber, optical fiber, Activated carbon fiber, ion exchange fiber, microfiber sheet, nanofiber and high flame retardant, anti-drip, high moisture conductivity, anti-static, conductive, antibacterial, deodorant, radiation and other multi-functional composite fiber.

7, high performance fiber

High performance fibers are special fibers with mechanical properties of 18cN/dtex and initial modulus of 441cN/dtex. The main varieties are para-aramid of organic fiber, all-aromatic polyester, and high-strength polyethylene fiber with ultra-high relative molecular weight. Inorganic fiber is mainly carbon fiber. High performance fiber has good strength and elongation properties, shear properties, fatigue resistance, good heat insulation and heat dissipation properties. Different high-performance fibers focus on performance is not the same.

8. High emotional fiber

High emotional fiber refers to high functional fiber, a type of fiber has special contribution in the feel, style, touch, texture and appearance of the finished product, so that the wear performance of the final product, or has a unique style, or better than natural fiber, or achieve special wear function. It is a general term for "new synthetic fiber", "super artificial fiber", "super natural fiber" and subsequent various new types of fiber, and is also known as new perceptual fiber.