Taguchi Approach for Analyzing the Impact of Varying Degrees of Cotton Stickiness on Ring Spun Yarn Quality

摘要

This research aimed to study the effect of stickiness in Sudanese cotton in the yarns quality of ring spinning, the effect of blending sticky with non sticky cotton, and optimize the spinning process.This is done by following a methodology based on Taguchi experiment design technique, which is recently emerged as a famous statistical approach.In the evaluations,analyses of the signal to noise ratio were used.Nine experiments were performed with respect to the L9 orthogonal design for the Taguchi approach.Taguchi Method is utilized to find the sequence of dominant factors contributing to the ring spun yarn quality.The study showed that a slight and non significant, negative effect on the coefficient of variation in mass of carded sliver, first and second drawn sliver.When considering the roving frame, the coefficient of variation in mass of roving is significantly increased with the increase in the stickiness level and the percentage of sticky cotton in the blends.In actual spinning, the quality of ring spun yarn is susceptible to stickiness.The study concluded that the dominant factor contributing to the most quality characteristics of ring spun yarn is cotton stickiness level.The study showed the optimum condition for the blending ratio of sticky with non sticky cotton was found to be 25％ and 75％ respectively.The results show a considerable improvement in the Signal to Noise ratio as compared to the initial conditions.It is recommended that, integrated solution that includes prevention, in-field mitigation, and processing adjustments is our best defenses against the stickiness problem.Further work needs to be done to establish whether temperature and relative humidity affect the blending ratios or not.