公开(公告)号：US4483903A

公开(公告)日：1984-11-20

申请号：US529652

申请日：1983-09-06

申请人： Ulrich Reinehr ,  Kurt Bernklau ,  Hans K. Burghart ,  Toni Herbertz ,  Hermann-Josef Jungverdorben

发明人： Ulrich Reinehr ,  Kurt Bernklau ,  Hans K. Burghart ,  Toni Herbertz ,  Hermann-Josef Jungverdorben

IPC分类号： B01D71/40 ,  B01D71/42 ,  B01D71/82 ,  D01D5/04 ,  D01D5/24 ,  D01F6/18 ,  D01F6/38 ,  D02G3/00 ,  B28B21/54

CPC分类号： D01F6/18 ,  D01D5/24 ,  Y10T428/2929 ,  Y10T428/2975

摘要： Hollow acrylonitrile fibres and filaments are prepared by dry spinning the spinning dope through a nozzle having loop-shaped nozzle orifices, the solution having a viscosity equivalent to at least 120 falling ball seconds, measured at 80.degree. C., or at least 75 falling ball seconds, measured at 100.degree. C., wherein the nozzle orifice area of the profiling nozzle is smaller than 0.2 mm.sup.2 and the maximum width of the sides of the loop-shaped nozzle is 0.1 mm and the overlap between the two ends of the sides of the loop-shaped nozzle forms an angle of from 10.degree. to 30.degree. measured from the center of the nozzle and wherein the spinning air acts on the filaments in a transverse direction to the filament take-off and the air direction forms an angle of from 80.degree. to 100.degree. with a straight line passing through the opening between the sides.

摘要翻译： 中空丙烯腈纤维和长丝通过将纺丝原液通过具有环形喷嘴孔的喷嘴进行干纺来制备，该溶液的粘度相当于在80℃下测量的至少120个落球秒，或至少75个落球 秒，在100℃下测量，其中成型喷嘴的喷嘴孔面积小于0.2mm 2，并且环形喷嘴的侧面的最大宽度为0.1mm，并且两侧的两端之间的重叠 环形喷嘴形成从喷嘴中心测量的10°至30°的角度，并且其中旋转空气沿着灯丝起飞的横向方向作用在长丝上，并且空气方向形成从 80°至100°，直线穿过两侧之间的开口。