Structural modelling of multi-thread fancy yarn
International Journal of Clothing Science and Technology
ISSN: 0955-6222
Article publication date: 10 April 2018
Issue publication date: 26 April 2018
Abstract
Purpose
The purpose of this paper is to mathematically model the structure of doubled fancy yarns made by combining together several threads.
Design/methodology/approach
It was assumed that such a structure may have two distinctive parts – sinusoidal and helical (i.e. sigmoidal). This model is based on calculating the length of the effect thread in relation to the core thread. The case of having several variants of such a structure was discussed to account for several types of doubled fancy yarns. The number of wraps of the binder, the overfed ratio, and heights of the fancy profiles in the different parts were the fundamental parameters of this model. The effects of changes in the number of wraps, the overfeed ratio or both simultaneously, on this model, were also considered. The shape factor of fancy yarn was also modelled depending on the basic model of the structure.
Findings
The model was tested and the correlation coefficient between the theoretical value and the real value of length of the effect thread was 0.90.
Originality/value
This model is useful for predicting the length of the effect component based on the type, dimension and number of the fancy profiles of doubled fancy yarn, and for understanding the changes of the multiple-thread structure of fancy yarn when the overfeed ratio and/or the number of wraps were to change.
Keywords
Acknowledgements
The authors are thankful to Samuel Edgecombe (PhD) for introducing the website of Wolfram MathWorld which helped completing the calculus and the calculations of this article. The authors are also grateful to Professor David Lloyds for his feedback which helped improving the content of the article. Finally, the authors are grateful to Damascus University for the financial support they received from it while doing the research of this paper.
Citation
Alshukur, M., Gong, H. and Stylios, G. (2018), "Structural modelling of multi-thread fancy yarn", International Journal of Clothing Science and Technology, Vol. 30 No. 2, pp. 268-283. https://doi.org/10.1108/IJCST-05-2017-0063
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited