熔体黏度的波动直接影响海岛丝的纺丝工艺,黑海岛丝母粒添加质量分数较高(约18.6%),36H假双对物料相当敏感,按老方法切换停留时间较长,物料降解较重.改进后可以将出料熔体管排干净还可以将初始降解物料全部排出,保证备用缸内的降解物料减少到最低.%The fluctuation of melt viscosity directly affects the spinning process of islands-in-the-sea yarn,the mas-terbatch adding mass fraction of black islands-in-the-sea yarn is higher(about 18.6%).The 36H false double is quite sensitive to the material. According to the old method,the switching time is longer,and the material degrada-tion is heavier. After the improvement,the discharging melt pipe can be cleaned and the initial degraded material can be discharged completely. Ensure that the degradable material in the spare tank is reduced to a minimum.
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