Herein, a novel kind of composite yarn with alternating segmented structure and interval color has been prepared based on a ring spinning approach. By adjusting the relative motion and blend ratio of the colored polyester filament and natural cotton staple fiber in yarn spinning process, a series of composite yarns were designed and prepared with various segmented structure and cyclical change of the distinct colors. The blend ratio was found to strongly influence on the segment frequency and yarn performance, achieving an improved mechanical property and yarn performance. A color systematic analysis indicated that the combination of alternating structural change induced interval color sense and gradient at the merged regions would lead to an enhanced stereoscopic visual effect of the composite yarns. Moreover, the composite yarns were confirmed to have an excellent weavability and able to endow different patterns and visual effects to the textiles. Thus, considering of the above advantages and multifunctionalities, this work should spur great possibilities for dyeing industry with the promising physical spinning method.

中文翻译：

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通过有前途的物理纺丝方法制备具有交替分段结构和间隔颜色的聚酯/棉复合纱线

在此，基于环锭纺丝法制备了具有交替的分段结构和间隔颜色的新型复合纱线。通过调节彩色涤纶长丝和天然棉短纤维在纱线纺丝过程中的相对运动和混合比，设计并制备了具有不同分段结构和不同颜色周期性变化的一系列复合纱线。发现混合比率对段频率和纱线性能有很大影响，从而获得改善的机械性能和纱线性能。颜色系统分析表明，交替的结构变化引起的间隔颜色感和合并区域的渐变的组合将导致复合纱线的立体视觉效果增强。而且，经证实，该复合纱线具有出色的可编织性，并能够赋予纺织品以不同的图案和视觉效果。因此，考虑到上述优点和多功能性，这项工作应为有前途的物理纺丝方法在染色工业中带来很大的可能性。