Polyester, polyacrylonitrile fiber, nylon, polypropylene, vinylon, spandex: the six major chemical fibers spandex, the following is a brief introduction to the characteristics of each.
A, polyester: brace not wrinkle
High strength, good impact resistance, heat resistance, corrosion resistance, moth resistance, acid resistance not alkali resistance, good resistance to completion (second only to polyacrylonitrile fiber), exposure to the sun for 1000 hours, the strength to maintain 60-70%, moisture absorption is poor, coloring difficulties, the fabric is easy to wash and dry, good conformability. With the characteristics of "washable and wearable".
Filament use: often used as low-stretch silk, making a variety of fabric products.
Staple fiber use: cotton, wool, hemp, etc. can be blended chemical fiber fabrics, industrial: tire cord, fishing nets, ropes, filter cloth, edge insulation materials, etc.. Is currently a large amount of chemical fiber.
Generally use disperse dyestuff coloring, adopt high temperature and high pressure coloring.
Second, nylon: strong and wear-resistant
Nylon big advantage is strong and wear-resistant, is a kind of superior. Small density, light fabric, good elasticity, resistance to strain damage, chemical stability is also very good, alkali resistance not acid resistance.
The big disadvantage is that the resistance to the sun is not good, the fabric will turn yellow after a long time in the sun, strength decline, moisture absorption is also bad, but better than polyacrylonitrile fiber, polyester.
Filament, mostly used in knitted fabrics and silk industry; staple fiber, mostly and wool or wool type chemical fiber blended chemical fiber fabrics, for wada tweed, Vanidine, etc.. Industry: cord and fishing nets, also can be used for carpets, ropes, conveyor belts, screens, etc.
Generally adopt acid dyestuff dyestuff, normal temperature and pressure can be dyed.
Three, polyacrylonitrile fiber: puffy and sun-resistant
Polyacrylonitrile fiber fiber performance is very similar to wool, so called "synthetic wool".
Molecular structure: polyacrylonitrile fibers are unique in the internal structure of the large part of the irregular spiral conformation, and there is no strict crystalline area, but there is a high order arrangement and low order arrangement of the difference. Because of this structure makes polyacrylonitrile fiber has very good thermal elasticity (can be finishing expanded yarn), polyacrylonitrile fiber density is small, smaller than wool, the fabric warmth is good.
Good resistance to sun completion and weather resistance (in the first place), poor moisture absorption, difficult to color.
Pure acrylonitrile fiber, due to the internal structure of the tight, poor performance, so by adding the second, third monomer, improve its performance, the second monomer to improve the elasticity and feel, the third monomer to improve the colorability.
Mainly for civilian use, can be purely spun or blended chemical fiber fabrics, made into a variety of wool, wool yarn, wool blankets, leisure wear; also: artificial fur, plush, puffy yarn, water hose, parasol cloth, etc.
Generally use cationic dyes, can be dyed at room temperature and pressure.
Four, vinylon: water-soluble moisture absorption
Vinylon big feature is moisture absorption, synthetic fibers in the good, known as "synthetic cotton". Strength than nylon, polyester poor, chemical stability is good, not strong acid, alkali resistance. Sun-end resistance and weather resistance is also very good, but it is resistant to dry heat but not wet heat (shrinkage) poor elasticity, the fabric is easy to wrinkle, poor coloring, color is not bright.
More and cotton blended chemical fiber fabrics: fine cloth, poplin, corduroy, underwear, canvas, water-blocking cloth, packaging materials, labor clothing, etc.
Direct dyes, reactive dyes, disperse dyes, etc. can be made vinyls on the color, but the dyeing depth is poor.
Five, polypropylene: light and warm
Polypropylene fiber is a common chemical fiber in the light fiber. It almost does not absorb moisture, but has a good core absorption capacity, high strength, made of fabric size stability, wear-resistant elasticity is also good, good chemical stability. However: poor thermal stability, not sunlight, easy to age brittle loss.
Can weave socks, mosquito net cloth, being wool, warm filler, diaper wet, etc.. Industry: carpets, fishing nets, canvas, water hose, medical tape instead of cotton yarn cloth, do sanitary products.
Polypropylene is more difficult to color, by modifying the color with disperse dyes.
Six, spandex: elastic fiber
Spandex good elasticity, poor strength, poor moisture absorption, have better resistance to finish, acid resistance, alkali resistance, wear resistance. Spandex is the pursuit of dynamic and convenient high-performance clothing necessary for the high elasticity of the fiber. Spandex can be elongated 5-7 times longer than the original state, so it is comfortable to wear, soft to the touch, and does not wrinkle, and can always maintain the original contour.
Spandex is widely used in lingerie, women's underwear, casual wear, leisure wear, short socks, pantyhose, bandages and other fabric-based fields, medical fields, etc. using its characteristics.
Spandex is also more difficult to color, and now can be colored by spandex coloring agent with acid dyes.
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