Discussion on Spinning Technology of 300.0 tex Polyester/Viscose Big-belly Yarn
Polyester yarn and polyester/viscose roving were used as raw materials to spin 300.0 tex big-belly yarn by using HN5DY fancy twisting machine.The single variable and orthogonal design experiments were carried out to optimize the process of big-belly yarn by adjusting the overfeed ratio,hollow ingot parameter and draw ratio.The appearance effect,structural stability,hairiness and other indexes of spinning big-belly yarn were analyzed by visual analysis and variance analysis.The degree of influence of three factors,namely,overfeed ratio,hollow twist and draft multiplier,on the spinning of potbelly yarns was investigated,and the optimal process parameters were determined.The results show that when the overfeed ratio,hollow ingot parameter and draw ratio are 1.07 times,250 twists per meter and 3.5 times,respectively,the optimum process parameters are obtained,and the coarseness,length and interval length of the big-belly yarn are(2.0±0.1)mm,(6.0±0.1)cm and(4.0±0.1)cm,which provides a certain theoretical basis for the subsequent process optimization of fancy yarns and style analysis.
Polyester Viscose RovingBig-belly YarnDraw RatioOrthogonal DesignAnalysis of Variance
万方数据
