新型纺纱技术的发展（Development of new spinning technology）.doc

新型纺纱技术的发展（Development of new spinning technology） Since the end of the twentieth Century, rotor spinning, air-jet spinning new spinning technology, the computer technology, sensor technology combined with frequency conversion technology and the free end spinning technology, new spinning has developed rapidly, the formation of high-tech electromechanical instrument to spinning body of yarn evenness, less and less hairiness, and higher yield. More important is to cancel the roving and winding process, shorten the process, reduce the labor and the area, reducing production costs, spinning, spinning technology is different due to different advantages, and the new spinning system, rotor spinning technology is the fastest, compared with mature technology, spinning quality well, the field field, welcomed by the people, because the rotor spinning and winding can cancel the roving process, shorten the process, to provide for the spinning project to achieve full automatic production line Favorable conditions for 360, R40 of Switzerland and Italy sand weaver, the rotor spinning technology in recent 40 years, great progress has been made, including the drafting and twisting spinning device, production of rotor spinning are mostly used for knitting and weaving, such as the German company gave Radford OE yarn in about 42% for knitting, woven for 58%. The United States is about 72% OE yarn for knitting, from the development trend, the future will be used for woven yarns increased year by year, spinning, only start production of coarse yarn by rotor spinning yarn technology progress quickly, the yarn number is in the range of Ne4--60, Western Europe Cup count numbers in Ne30 - 40 the United States, is dominated by Ne24, the rotor spun yarn is blended yarn and pure cotton yarn, blended yarn (synthetic fiber, viscose), spinning varieties, cotton yarn accounted for 55%, 6%, J accounted for 6% Jiao stick. In 1960 Czech pioneered the first rotor spinning machine, the rotor speed is only