Method for improving properties of yarns formed by rotor spinning

Abstract

The invention relates to a method for improving the properties of yarns formed by rotor spinning by reducing fiber modulus and rigidity on line, belonging to the field of textile processing. The method has the following advantages that the fiber modulus and bending rigidity of rotor spun fiber strands are quickly reduced on line by adopting a three-stage parallel softening treatment method, thus improving the fiber combing quality of the combing roller, improving torsion easiness and internal and external transfer properties when the fibers undergo rotor spinning, improving the rotor spun yarn surface twist line clarity and yarn strength and substantially elevating the capability of spinning high count yarns through rotor spinning; the key problems that the rotor spun yarn surface fibers are loose, the twist lines are not clear and the method is not suitable for spinning the high count yarns can be effectively solved; the quality of the yarns formed by rotor spinning of fibers is substantially improved; and the method is especially suitable for high-quality spinning of textile fibers with high rigidity (such as ramie) and high elasticity (such as wool) on the rotor spinning machine.

Description

technical field [0001] The invention relates to a method for improving the yarn-forming performance of rotor spinning by reducing fiber modulus and stiffness online, and belongs to the field of textile processing. technical background [0002] Rotor spinning is an open-end spinning method. At present, the yarn produced by the rotor spinning machine accounts for about 40% of the total staple fiber yarn in the world. The raw material used in rotor spinning is fiber thick sliver, which is different from the roving used in ring spinning. It can be directly fed into the rotor spinning machine for rotor spinning without multiple careful drafting and carding, and Rotor spinning Rotor spinning The twisting and winding of the rotor spinning are carried out separately, the spinning speed is not affected by the yarn package, and the rotating speed of the rotor is extremely high, so the rotor spinning has the advantages of high spinning speed, Large package, low cost, low requirements...

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Publication No. CN201183864, publication date 2009.01.21, the name of the invention is a rotor of a rotor spinning machine. The rotor of the rotor spinning machine is equipped with several miscellaneous removal holes to realize unobstructed miscellaneous removal, avoid scraping the edges of the miscellaneous holes, and improve the yarn quality of the rotor

However, this application is aimed at the problem of yarn hairiness in the ring spinning processing process of grip-end spinning, and in the spinning process, only by heating, the instantaneous reduction effect of fiber modulus and stiffness is poor

So far, there is still no way to improve the rotor spinning method, using online to quickly reduce the fiber stiffness, improve the fiber's easy control, easy torsion and twisting performance, so as to achieve the effect of improving the yarn performance of rotor spinning

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