High-Bulking Behavior of Cotton/Acrylic Rotor Yarn Using Taguchi Statistical Procedure

This research aims to investigate the coincident optimization of both properties of specific volume and tensile strength of high-bulked cotton/acrylic rotor yarn, using Taguchi statistical procedure. Therefore, the L₂₇ orthogonal arrays were used to design production process factors of high-bulked yarns such as percentage of acrylic shrinkable fiber, navel type, rotor speed, yarn twist, and relaxation temperature. The used method offers techniques such as signal-to-noise (S/N) and overall evaluation criteria (OEC) which can be respectively employed for individual and coincident optimization of two studied characteristics. Considering the meaningful effects of the variance values for all factors, they have significant effects on the yarn specific volume. It was also deduced that except navel type and rotor speed, the influence of the other studied factors on the yarn tensile strength is significant. Moreover, in the coincident optimization, it was shown that the yarn twist has the most significant level on OEC values.