Abstract:

In order to well understand the influence of yarn structure of vortex spun yarn of its tensile properties and design the yarn structure, firstly, based on observation and analysis on structure of the vortex spun yarn, a geometric model of vortex spun yarn structure was proposed, then the stress of fiber in vortex spun yarn was analyzed, and the tensile strength model of vortex spun yarn was building. The predicted tensile strength of the vortex spun yarn obtained from the model was verified by that of tested data. It is found that the predicted strength data of the prediction model of yarn strength is very close to that of the measured data by comparison. Moreover, the error in the calculation of the yarn radius caused by the hairiness in the yarn can affect the accuracy of the model prediction results.

Key words: air jet vortex spinning, yarn, mathematical model, tensile strength, yarn radius