15kt/a国产锦纶6连续聚合装置切片高速纺丝工艺探讨

APPLICATION OF NYLON6 CHIPS PRODUCED ON 15 kt/a DOMESTIC VK TUBE TO HIGH-SPEED SPINNING

介绍了国产 15 kt/a聚合装置生产的 YH5 0 0 C锦纶 6有光切片在高速纺装置上的生产情况 ,调整纺丝温度 ,控制侧吹风温度 2 0℃ ,速度 0 .4～ 0 .5 m /s,RH为 65 %～ 75 % ,上油率为 0 .5 %～ 0 .8% ,调整冷却集束点位置 ,选择合理的聚氨酯摩擦盘和热箱温度 ,则可生产出质量稳定的 15 5dtex/48f锦纶有光 DTY产品。

The production situation of YH500C bright chips produced on 15 kt/a domestic VK tube applied to high\|speed spinning was introduced. The produced chips had consistent quality and absolutely suited to high\|speed spinning when the process parameters, such as spinning temperature, spinpack filter medium, collection position and hot box temperature etc., were well controlled. The consistent\|quality 155 dtex/48 f bright nylon6 DTY can be obtained if the fore and after spinning process was optimized as followed: cross air blow temperature 20℃, air speed 0 4~0 5 m/s, RH 65%~75%, oil pick\|up 0 5%~0 7% and rational choice of polyurethane friction disc and hot box temperature.