Study on the structure and tensile property of the conjugate two-plied yarn
The conjugate two-plied yam (CTPY) is a combination of two single yams with opposite twist directions through the second twisting process. The cotton yams and polyester filaments were used to form the CTPYs, and then they are twisted and observed by a scanning microscope. The experimental results show that, with the increase of twist in the CTPY, one ply in the yaM becomes the core part, another ply in the yarn becomes wrapped part. The twist shrinkage of the CTPy depends on the twist shrinkage of the core part and the angle of the wrapped part to the core part mainly depends on the shrinkage difference between the core part and the wrapped part. The tensile testing results show that the strength of the CTPY is less than that of the traditional two-plied yams in the same linear density. With the increasing of twist in the CTPY, its strength decreases sharply first and then increases. There exists a critical twist or twist coefficient. In addition, it was found that, during the tensile process, two peaks occur in the tensile curve. Furthermore, when the twist of the CTPY is big enough, this phenomenon is more evident.
conjugate two-plied yarn (CTPY) twist strength elongation
FAN li-shan CHEN Mei-yu ZHOU Bin QIN Pei
School of Life Science, Nanjing University, Nanjing 210093, China Department of Textile Engineering, School of Textile and Materials, Xian Polytechnic University, Xian 710048, China Department of Textile Engineering, Yancheng Textile Vocational College, Yancheng 224005, China School of Life Science, Nanjing University, Nanjing 210093, China
国际会议
2009 International Teztile Science and Technology Forum(2009国际纺织科学技术论坛)
西安
英文
107-113
2009-04-01（万方平台首次上网日期，不代表论文的发表时间）