亚麻长麻/涤纶长丝复合纱的纺制及其性能比较

为比较不同复合加工方法所纺亚麻长麻/涤纶长丝复合纱的性能,通过现有纺纱设备改造设计了纺纱工艺,纺制了具有相同捻度的5种复合纱;对复合纱的外观特征、拉伸性能和毛羽进行了测试与分析。结果表明:采用不同成纱方法的复合纱均具有明显的捻度分布不匀特征;包缠结构复合纱相对于捻合结构复合纱具有更好的包覆效果;相对于断裂强力而言,复合加工对亚麻纱最小强力的提高效果更好,并可显著降低强力不匀率;除同捻向包缠纱外,各复合纱均可实现免浆织造;赛络菲尔纺和并捻复合对提高成纱断裂伸长率效果显著,而包缠复合降低亚麻纱毛羽的效果最好。

Spinning and performance comparison of line flax/polyester multifilament composite yarns

In order to compare the performances of line flax/polyester multifilament composite yarns by different composite processing methods, the spinning process parameters were designed by modifying existing spinning equipment, and 5 composite yarns with the same twist were spun. The appearance characteristics, tensile properties and hairiness of composite yarns were compared and analyzed. The results show that the composite yarns by different spinning methods are all of obvious characteristics of uneven distribution of twist; the wrapped composite yarns have better covering effect than the composite yarns of twisted structure; compared with the breaking strength, composite processing has better improve effect on the minimum strength of the line flax yarn, and can significantly reduce the strength unevenness; all the composite yarns can be woven without sizing except the wrapped yarn of same twist direction; and the double-twist and Sirofil composite processed are effective in improving the breaking elongation rate of the yarn, and the effect of wrapping composite to reduce the hairiness of the line flax yarn is the best.