A Study of Yarn Breaks on Warping Machines
Alsaid Ahmed Almetwally1, M. M. Mourad2 and Abeer Ebraheem Eldsoky Mohammed3
1 Textile Eng. Dpt, National Research Center, Dokki, Cairo, Egypt.
2Faculty of Education, Helwan Univ., Helwan, Egypt.
3 Faculty of Specific Education, Mansoura Univ., Home Economics Dpt, Mansoura, Egypt.
Abstract: The present study was conducted to determine the impact of cotton / polyester blending ratio, cotton type, yarn twist and yarn count on yarn breaks on warping machine. Two-way ANOVA technique was used to detect the significant effects of these variables on yarn breaks. Regression analysis was used to predict the number of yarn breaks at different levels of each independent variable. The findings of this study revealed that Blending ratio of polyester in cotton:polyester blended yarns has a significant effect on yarn breaks and the breaks associated with carded yarns were more than that accompanied the combed ones. The number of yarn breaks varies directly with single and plied yarn counts. Whereas twist multipliers inversely affect the number of yarn breaks. For warp yarns of count 20 Ne, Yarns spun from Giza 70 exhibited higher breaks number, while for yarns of count 40 Ne, Giza 83 showed higher yarn breaks. Singeing process enhanced warp yarn breaks on warping machine by approximately 25%.
[Alsaid Ahmed Almetwally, M. M. Mourad and Abeer Ebraheem Eldsoky Mohammed. A Study of Yarn Breaks on Warping Machine. Life Sci J 2013;10(1):108-114] (ISSN:1097-8135). http://www.lifesciencesite.com. 16
Key words: blending techniques; cotton/polyester ratio, yarn count, yarn twist, combed yarn, carded yarn, warping process. Full Text 16