Through twister process, single yarn can improve evenness, and different twister technology route have different influence on yarn evenness CV value.

单纱经过捻线工序能改善条干，不同的捻线工艺路线对纱线条干c V值产生不同的影响。

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Thearticle introduces the principle and methods of producing such yarn on ring fancy twister and hollow spindle fancy yarn spinning and twisting machine, and it also gives some tips onthe operation.

文章介绍了断丝线的生产原理与在环锭花式捻线机和空心锭花式纱线纺捻机上的生产方法，并指出了一些工艺操作要点。

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