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A Study of The Hairiness of Polyester-Viscose Blended Yarns; Part I. Drafting System Parameters

Research and development

Authors:

• Haghighat Ezzatollah
  Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
• Johari Majid Safar (j/w)
• Etrati Seyed Mohammad (j/w)

Full text

Abstract: The influences of drafting system parameters of a ring frame and yarn parameters on the hairiness of polyester-viscose blended yarns are examined. Samples of 80/20 polyester/viscose blended yarns were produced by a SKF Lab Spinner and the hairiness was measured by a Shirley Yarn Friction/Hairiness Meter. Statistical analysis of the results show that yarn hairiness is significantly influenced by the drafting system angle, the overhang of the top delivery roller, the covering of the top delivery roller, the back zone setting, the break draft, the yarn count and yarn twist. Moreover, it was observed that the distance clips and top roller pressure do not have a significant effect on the yarn hairiness. The origin of the improving factors and decreasing factors of hairiness are discussed.

Tags: drafting system factors, polyester-viscose blended yarn, yarn hairiness, yarn parameters.

Published in issue no 2 (67) / 2008, pages 41–44.