| The topic has discussed the suitability of air jet vortex spinning method and analyzes the fiber movement process in the nozzle when it is spinning.The topic also analyzes the air jet vortex spun yarn performance made of different fibers with different geometry. The topic has a research on the performance of air jet vortex spun yarn made of fibers with different lengths, this study has selected 32 mm, 34 mm, 36 mm, 38 mm, 40 mm long viscose fibers to make it into air jet vortex spun yarn, and the study has tested yarn performance,fuzzy math method is used to find out the optimum length of spinning fiber; the topic has also studied the effects of fibers with different fineness on yarn performance through comparative analysis of the mechanical characteristics of air jet vortex spun yarn made of fibers with different fineness and the topic has determined the impact of fiber fineness on yarn hardness; the topic has also studied the fibers with different cross-sectional shapes as solid circular cross section fiber, hollow circular cross section fiber, elliptical cross-section fiber, semi-circular cross-section fiber, triangular section of the fiber when they are used in air jet vortex spinning, through comparative analysis of the fiber structure and mechanical characteristics and its corresponding air jet vortex spun yarn,the article has determined the relationship between fiber mechanical characteristics and air jet vortex spun yarn performance, finally find out how the fibers affect air jet vortex spun yarn performance according to air jet vortex spinning mechanism. |