The Practice of Improving the Wear Resistance of Air-jet Vortex Spinning Polyester Viscose Colored Yarn
In order to improve the wear resistance of air-jet vortex spinning polyester viscose col-ored yarn,taking extra-black T/R 70/30 19.7 tex yarn as an example,the yarn raw material configuration is determined according to the wear resistance index of different raw materials,the process principles and parameters optimization of each process are analyzed in detail,and the key points of temperature and humidity control are summarized.By comparing the yarn quality data of the optimized process scheme,it is pointed out that the wear resistance of extra-black T/R 70/30 19.7 tex vortex spinning colored yarn can be effectively improved by adopting raw materials with low linear density,the concept of flexible opening and carding,small feeding ratio,small diameter spindle,relatively large nozzle pressure and oil pressure difference,smaller main drafting multiple and so on.The spinning speed of extra-black T/R 70/30 19.7 tex vortex spinning colored yarn is 480 m/min,and the wear resistance index is as high as 19.2.The yarn quality is good,which can meet the quality requirements of high-end knitting yarn.
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