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The Effects of Heat-Setting on the Properties of Polyester/Viscose Blended Yarns

Research and development

Authors:

• Sardag Sibel
  Department of Textile Engineering, Udulağ University, Turkey
• Özdemir Özcan (j/w)
• Kara Ismail
  Can Textile, Turkey

Full text

Abstract: 30 tex and 20 tex yarn bobbins consisting of 67% PES - 33% viscose were subjected to heat-setting at 90 °C & 110 °C, and under a pressure of 630 mmHg in order to investigate the effects of heat-setting conditions on the properties of twisted yarns. Both heat-set and unset yarns were dyed. The tensile strength properties (tenacity and elongation at break) of each yarns were measured before heat-setting, after heat-setting and after dyeing. The inner, middle and outer sections of the yarn bobbins were measured with a spectrophotometer to find differences in color. As a result, heat-setting and dyeing processes were found to be effective in the tenacity and elasticity of yarns.

Tags: heat setting, twist setting, twisting, temperature, polyester (PES), viscose, tenacity, work of rupture

Published in issue no 4 (63) / 2007, pages 50–53.