Optimization of the slub yarn tensile strength with Taguchi techniques

Yarn strength is one of the most significant quality parameters to be controlled during the yarn spinning process. In this study, it was aimed to achieve maximum slub yarn tensile strength with an optimization process on selected control factors that were slub length, slub distance, slub thickness and yarn count. For this purpose, the Taguchi experimental design technique, analysis of variance (ANOVA), and signal-to-noise (S/N) ratio were used. Instead of 81 (3(4)) different slub yarn configuration (full factorial design), only nine yarn configurations with respect to Taguchi's L-9 orthogonal design were spun and tested. As a result of these experiments, the optimum slub yarn parameters, which made a considerable improvement on yarn tensile strength, were determined.