Analysis on the Characterization of the Twist Insertion Level and Its Effect of the Compact and Ring Spun Yarns

作者：YANG Jian ping FU Ting WANG Jun College of Textiles Donghua University Shanghai China Key Laboratory of Textile Science & Technology Ministry of Education Donghua University Shanghai China

来源：Journal of Dong Hua University (english Edition), 2011, (03): 252-254.

• compact yarn
• ring yarn
• twist insertion level
• twist factor
• twist angle
• twist level

In this paper, the difference of the twist insertion levels of the compact and ring spun yarns of the same count is analyzed based on the relationship of the yarn twist factor to the twist angle and the bulk density. It is proposed that the relationship of the twist angle, twist level, and the yarn diameter should be synthetically considered when evaluating the twist insertion level of the compact yarn. The twist angle of the compact yarn is smaller than that of the ring yarn with the same twist insertion level. This results from the ordered fiber arrangement and compact structure of the compact yarn. Experiment was conducted to verify the conclusions. It is also discovered that the selection of the twist factor of the compact yarn, which can be usually lower than that of the ring yarn by 10%-15%, can be determined based on the yarn tensile strength.

• 出版日期2011-6-30
• 单位东华大学