Tensile property of highly twisted cotton yarns under varied relative humidity
International Journal of Clothing Science and Technology
ISSN: 0955-6222
Article publication date: 1 August 2016
Abstract
Purpose
The traditional Japanese cotton-crepe fabric chijimi has been used for summer clothing for over a century because of its good skin comfort. The high extensibility of this fabric relies on the high-twist cotton yarns used in the weft direction. The purpose of this paper is to show the effect of environmental humidity on the extensibility of highly twisted cotton yarns to help in choosing weft yarn suitable for woven fabric.
Design/methodology/approach
Four highly twisted cotton yarns are examined under 10-90 percent RH and in 25°C water. Cyclic tensile tests are performed to obtain the tensile energy, resilience, extensibility at maximum applied load (EM), and residual strain.
Findings
Comparing the same yarn-count samples Y1 and Y2, the EM of Y2 (2,200 T/m) is larger than that of Y1 (1,000 T/m) under all RH conditions, and the difference increases at humidity over 60 percent RH. For fabric crepe samples woven by Y1 (warp) and Y2 (weft), the extensibility (EM-1) in the weft direction is in the range 16-26 percent, which is equivalent to that of outer-knitted fabrics. The extensibility and recovery of chijimi is largely dominated by the twist of weft yarns, which is also influenced by changes in relative humidity.
Originality/value
The skin comfort of Takashima chijimi has been of interest, but the high extensibility of this cotton fabric has not been given much attention. The results of this study show that yarn twist is key to controlling extensibility in high-humidity environments.
Keywords
Acknowledgements
The authors would like to thank Shiro Takahashi of Takahashi Textile Co. Ltd, Shiga, Japan, for making the yarn and fabric samples used in this study. This work was supported by JSPS KAKENHI Grant Numbers 24300247 and 15H01764.
Citation
Htike, H.H., Kang, J. and Sukigara, S. (2016), "Tensile property of highly twisted cotton yarns under varied relative humidity", International Journal of Clothing Science and Technology, Vol. 28 No. 4, pp. 390-399. https://doi.org/10.1108/IJCST-08-2015-0089
Publisher
:Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited