缆型纺纱线的捻度分布

Twist distribution of split-spun yarn

根据缆型纺先分束后汇聚的成纱机制及理论力学原理分3个部分(交汇点、交汇点以上的纤维束和交汇点以下的纱线部分)对缆型纺纱线的捻度进行探讨。分析了纱线各部分捻度产生及分布情况,得出缆型纺纱线纤维束部分捻度与纱线捻度及纤维束本身的状态相关,纤维束上的捻度不是一个定值等结论。提出纤维束和纱线捻度之比的规律,探讨了纤维束捻度与纱线性能的相关性,认为只有当缆型纺纱线捻度达到临界捻度时纱线综合指标最佳。

The twist of the split-spun yam was studied by the principle of the solo-spinning and mechanical theories that have three sections （conjunction points, the fasciculus above this point, and the yams below conjunction points）. We analyzed the twist of the split-spun yams, the twist producing and distribution along the split-spun yams. Finally, we concluded that there are correlation between the twist of fasciculus, the twist of yams, and the condition of the fasciculus. We also concluded that the twist of the fasciculus is not a fixed value and so on. And, from the analysis of the twist for the conjunction points in the split-spun yam, we brought forward the roles concerning the ratio of fasciculus to yam twist. And, The correlation between the twist of fasciculus and the fibers＇ capability was investigated, pointing out that only when the twist of split-spun yam are in critical value, the index of yam will be the best.