A Novel Concept to Produce Submicron-Cotton/Polyester Composite Core-Spun Yarn via Modified Apparatus

ABSTRACT

In recent years, due to the special structure and performance, more and more techniques and methods were developed for preparing core-spun yarn. In this article, the submicron-cotton/polyester composite core-spun yarn is produced on conventional ring spinning, in which the polyester staple fibers as core and the sheath were submicron-cotton (Sm-C) fibers, the Sm-C sliver produced by carding machine equipped with a dish-shaped electrospinning device and the core-spun polyester roving covered Sm-C sliver was produced by the roving frame with the modified bell mouth. Three different ratios of submicron-cotton/polyester roving were spun based on the prepared Sm-C sliver, which shows roving formed a core-sheath structure. The coverage rate reaches 100%. The 85Sm-C/15T performance shows that the weight CV (1.0%) and evenness CV (5.0%), then use it to prepare three kinds of spun yarns with 800TPM, 900TPM, and1000TPM, when the twist was increased the structure of the yarn becomes more compact, the long-staple cotton fibers and submicron fibers were intermingled and entangled with each other, and the strength of 900TPM increases by 18.79% compared with 800TPM, the evenness CV decreases by 2.22%, compared with 900TPM, the 1000TPM elongation breaking decreased 9.33%. Consequently, the modified spinning methodology improved the coverage rate, structure, and mechanical properties of submicron-cotton/polyester composite core-spun yarn.

近年来, 由于包芯纱的特殊结构和性能, 开发了越来越多的包芯纱制备技术和方法. 本文采用常规环锭纺纱工艺生产了亚微米棉/涤纶复合包芯纱, 其中涤纶短纤维为芯, 护套为亚微米棉 (Sm-C) 纤维, 采用配有碟形静电纺丝装置的梳棉机生产的Sm-C条和采用改进喇叭口粗纱机生产的包芯涤纶粗纱生产的Sm-C条, 以制备的Sm-C条为原料, 纺制了三种不同配比的亚微米棉/涤纶粗纱, 粗纱形成了芯鞘结构, 覆盖率达100%. 85Sm-C/15 T的性能表明, 重量CV (1.0%) 和条干CV (5.0%), 然后用其制备800TPM, 900TPM和1000TPM三种细纱, 当捻度增加时, 纱线结构变得更加紧密, 长绒棉纤维和亚微米纤维相互交织, 与800TPM相比, 900TPM的强度提高了18.79%, 均匀度CV降低了2.22%, 1000TPM的断裂伸长率降低了9.33%. 因此, 改进后的纺纱方法提高了亚微米棉/涤纶复合包芯纱的包覆率, 结构和力学性能.

KEYWORDS:

• Composite core-spun yarn
• submicron-cotton fibers
• yarn structure
• fiber adhesion
• functional yarn
• electrospinning

关键词:

• 复合包芯纱
• 亚微米棉纤维
• 纱线结构
• 纤维附着力
• 功能纱线
• 静电纺丝

Acknowledgments

We gratefully acknowledge the financial support provided by the Chang Jiang Youth Scholars Program of China and grants (51773037 and 51973027) from the National Natural Science Foundation of China.