Germany, the Polyester Sd Yarns Manufacturers and other countries use the hairiness index to characterize the amount of hairiness. Humidity is conducive to the reduction of hairiness. Therefore, the yarn hairiness index has become the current important quality assessment index. Drawing process should pay attention to draft distribution, improve fiber straightness, reduce the probability of hairiness formation, the bell mouth can not be hung, the pressure bar should be regularly checked to ensure good condition.. 4. Combing eliminates a large number of staple fibers in the sliver,
improves fiber straightness and parallelism, and reduces yarn hairiness. Looking for the gauze small article said that the hairiness caused by the hairiness caused the appearance of the yarn, which reduced the gloss of the yarn appearance. Yarn hairiness refers to the fiber end or loop that protrudes from the body of the yarn. Too much yarn hairiness will affect the normal sizing, and during the weaving process, it will cause unclear openings and increased end breaks. Generally speaking, carded yarn has 30% -40% more hairiness than combed yarn.
The amount and distribution of yarn hairiness have a significant impact on the quality of the fabric and the dyeing and printing quality of the fabric, and it will also cause the problem of fluffing and pilling in the process of taking the fabric. The greater the torsional rigidity and bending rigidity of the fiber, the more the yarn hairiness; the greater the torsional rigidity and bending rigidity of the fiber, the more yarn hairiness; the thinner the fiber, the more the number of fibers in the yarn cross section, the more The more likely the fiber tip is exposed, the greater the probability of forming hairiness;
the impurities carried by the fiber itself are prone to defects during the spinning process, affecting the normal operation of the whisker and straightening, so that the fiber is exposed The chance of the yarn body is increased to produce hairiness; fiber maturity is good, the length is long, and the degree of uniformity is good, the less the number of fibers per unit length, the less the yarn hairiness. during the formation of the yarn, It will have a direct impact on the production of hairiness. The effect of the post-spinning process on the yarn hairiness Spinning is the key process of spinning, and the quality of its spinning equipment has a great influence on the yarn hairiness.
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