Fabric Knowledge -- Analysis Of Viscose Fiber Characteristics

< p > viscose is one of the oldest fiber varieties. It is the abbreviation of viscose fiber. It refers to the alpha cellulose from wood and Ligusticum and other cellulose raw materials, or made of cotton lint as raw material and processed into spinning raw liquid, and then made by wet spinning.

Viscose fiber is one of the earliest chemical fibers that have been put into industrial production.

Because of its good moisture absorption and comfortable wearing, it has good spinnability and is often blended with cotton, wool or all kinds of synthetic fibers. It is used for all kinds of < a target= "_blank" href= "//www.sjfzxm.com/" > strong > clothing < /strong > /a > and decorative "a target=" _blank "_blank".

High strength viscose fiber can also be used for tire cord, conveyor belt and other industrial supplies.

Viscose fiber is a widely used chemical fiber.

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< p > viscose has a long history.

In 1891, Cross, Bevan (Bevan) and Beadle (Beadle) first made sodium cellulose sulfonate solution from cotton. Because the viscosity of the solution was very large, it was named "viscose".

When the viscose is acid, the cellulose will re precipitate.

According to this principle, in 1893, it developed into a method of making cellulose fibers, which are called viscose fibers.

By 1905, Miller and Muller invented a kind of coagulation bath consisting of dilute sulfuric acid and sulphate, and achieved the industrial production of viscose fiber.

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< p > viscose fiber belongs to regenerated cellulose fiber.

It is made of natural cellulose as raw material, and is made of soluble cellulose sulfonate through alkalization, aging, sulfonation and so on. It is made from viscose and dilute lye, and is made by wet spinning.

By using different raw materials and spinning process, ordinary viscose fiber, high wet modulus viscose fiber and high strength viscose fiber can be obtained.

Ordinary viscose fiber has general physical and mechanical properties and chemical properties, and is also divided into cotton, wool and filament type, commonly known as artificial cotton, artificial wool and rayon.

High wet modulus viscose fiber has high polymerization degree, strength and wet modulus.

The fiber density per unit line density in wet condition can withstand 22.0cN load, and the wet elongation at this load does not exceed 15%.

High strength viscose fiber has high strength and fatigue resistance.

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< p > viscose fiber has the advantage of soft and glossy feel. Viscose fiber is as soft as cotton fiber and smooth as silk fiber.

Secondly, the moisture absorption and permeability are good. The basic chemical composition of viscose fiber is the same as that of cotton fiber. Therefore, some of its properties are close to cotton fibers. The difference is that its moisture absorption and air permeability are better than those of cotton fibers. It can be said that it is one of the best hygroscopicity and permeability in all chemical fibers.

In addition, the dyeing property is good, because viscose fiber hygroscopicity is stronger, viscose fiber is easier to color than cotton fiber, the color is pure, gorgeous, chromatography is also the most complete.

The disadvantages of this < a target= "_blank" href= "//www.sjfzxm.com/" > strong > material < /strong > /a > are poor wet fastness and poor elasticity. The fabric is easy to crease and not easy to recover, and acid and alkali resistance are not as good as cotton fiber < /p >

< p > the breaking strength of ordinary viscose fiber is smaller than that of cotton, the elongation at break is greater than that of cotton, 16%~22%, the decrease of wet strength is about 50%, and the elongation of wet state is increased by about 50%.

Its modulus is lower than cotton, easy to deform under small load and poor resilience, so fabric is easy to elongate and poor dimensional stability.

The strength of the rich fiber, especially the wet strength is higher than that of the ordinary viscose, the elongation at break is small, and the dimensional stability is good.

The wear resistance of ordinary viscose is poor, while that of rich viscose is improved.

The chemical composition of viscose fiber is similar to that of cotton, so it is more alkali resistant and acid proof, but its alkali resistance and acid resistance are all inferior to that of cotton.

Rich fiber has good alkali resistance and acid resistance.

Similarly, the dyeing property of viscose fiber is similar to that of cotton.

In addition, the thermal properties of viscose fiber products are similar to those of cotton, and the density is similar to that of cotton fabrics.

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< p > in recent years, a new high-grade variety called "Tencel" and "bamboo fiber" has appeared in viscose fiber.

Viscose is cellulose fiber produced from cotton or other natural fibers.

In the 12 main textile fibers, the moisture content of viscose is most consistent with the physiological requirements of human skin. It has the characteristics of smoothness, coolness, breathability, antistatic and coloring. Therefore, it has also been favored by garment enterprises and < a target= "_blank" href= "//www.sjfzxm.com/" > strong > designer /strong > /a.

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