聚乳酸消光纤维直接纺丝生产工艺

聚乳酸消光纤维直接纺丝生产工艺，包括以下步骤:（1）、将二氧化钛、催化剂、稳定剂充分融合成为悬浮液，丙交酯和悬浮液加入到搅拌罐内；（2）、丙交酯混合物经聚乳酸预聚混料装置的预热混合后到初聚罐内进行初步聚合；（3）、在终聚罐内进行最终聚合；（4）、第三计量泵将聚乳酸熔体通过动静体管道式混料装置再次混合计量；并送入纺丝箱体内（5）、纺丝计量泵计量增压后通过纺丝组件进行纺丝。本发明确保预聚合管内的熔体在恒定速度状态下向下流动，并使预聚合管内熔体温度也基本致，本发明直接在第三输料管上设置若干组混料单元即可，省去了在输送管道上安装混料系统，节约了成本，达到均匀混料之目的，输送及混料效率大大提高。 A polylactic acid delustering fiber direct spinning production technology comprises the steps that 1, titanium dioxide, a catalyst and a stabilizer are fully mixed into suspension liquid, and lactide and the suspension liquid are added into a stirring tank; 2, a lactide mixture is put in a primary polymerization tank for primary polymerization after being preheated and mixed in a polylactic acid pre-polymerization and mixing device; 3, final polymerization is conducted in a final polymerization tank; 4, a third meter pump conducts mixed measurement again on polylactic acid melt through a dynamic and static integrated piping type mixing device and sends the polylactic acid melt into a spinning manifold; 5, a spinning m