Properties of oak tasar/viscose blended yarns

Abstract

Oak tasar fibres and viscose rayon fibres have been blended in different proportions (65/35, 50/50 and 35/65) to produce a binary mixture of fibres for preparing 16 count yarns. Viscose and blended yarns have been tested for different properties such as yarn strength, elongation, tenacity, count strength product, unevenness and hairiness. It is observed that the yarn strength, elongation and tenacity values decrease with the increase in tasar silk fibre component in blend. Count strength product values are found to increase with the increase in viscose component in the blend and similar trend is also noticed for lea strength values. Maximum unevenness percentage is recorded in 65/35 tasar/viscose blended yarn followed by the yarns of 50/50 and 35/65 tasar/viscose in comparison to pure viscose yarn having minimum unevenness. Hairiness value and index increase with the increase in tasar silk fibre proportion in the blend.