超亮光内三角中空仿锦纶涤纶FDY生产工艺

Production Process of Super-Bright Inner Triangle Hollow Imitated Polyamide Polyester FDY

介绍了一种超亮光内三角中空仿锦纶涤纶全拉伸丝(FDY)生产工艺,通过对喷丝板的设计、纺丝和卷绕工艺等进行试验,探索得到最佳工艺参数。试验表明,在纺丝温度291~295℃、冷却风温度22℃、风速1.55 m/s、GR1速度4 750 m/s、GR2速度4 800 m/s、GR2温度120℃、卷绕速度4 800 m/s的工艺条件下,生产的FDY的断裂强度为2.77 cN/dtex,断裂伸长率为45.1%,中空度为15%。

The production process of super-bright inner triangle hollow imitated polyamide polyester full drawn yarn(FDY) was introduced.The optimum process parameters were obtained by experiments on the design of spinneret,spinning and winding process,etc.The test shows that under the spinning temperature of291~295℃,cooling air temperature of 22℃,wind speed of 1.55 m/s,GR1speed of 4 750 m/s,GR2speed of 4 800 m/s,GR2temperature of 120℃,winding speed of 4 800 m/s,the breaking strength of the produced FDY is 2.77 cN/dtex,elongation at break is 45.1%,and hollow degree is 15%.