公开(公告)号：US4731218A

公开(公告)日：1988-03-15

申请号：US780194

申请日：1985-09-26

申请人： Hubert Damhorst ,  Karl-Heinz Erren ,  Hans-Joachim Petersen

发明人： Hubert Damhorst ,  Karl-Heinz Erren ,  Hans-Joachim Petersen

IPC分类号： D01D5/08 ,  D01D5/096 ,  D01D5/098 ,  D01D5/12 ,  D01D5/16 ,  D01F6/60 ,  D01F6/62 ,  D01D5/092

CPC分类号： D01D5/16

摘要： A method of producing a flat polymeric yarn is disclosed which includes the steps of melt spinning a polymer to form a plurality of running filaments, combining the filaments to form a running bundle of filaments, and then guiding the running bundle into contact with a ribbon of fluid so as to apply a controlled quantity of the fluid to the bundle. The fluid coated bundle is guided over a plurality of serially arranged curved braking surfaces, and it is then withdrawn by means of a draw roll so as to draw the running bundle to an extent which exceeds its plastic limit. The application of the fluid to the bundle in accordance with the present invention results in a hydrodynamic friction, rather than a sliding contact friction, between the bundle and braking surfaces, and produces yarn of very uniform quality while also avoiding wear of the braking surfaces.

摘要翻译： 公开了一种生产扁平聚合物纱线的方法，其包括以下步骤：熔融纺丝聚合物以形成多根流动的长丝，将长丝组合以形成行进的长丝束，然后引导行进的捆与 流体，以便将受控量的流体施加到束。 流体涂覆的束被引导在多个串联布置的弯曲制动表面上，然后通过拉伸辊取出，以便将行进的束拉出超过其塑性极限的程度。 根据本发明将流体施加到束导致束与制动表面之间的流体动力学摩擦而不是滑动接触摩擦，并且产生非常均匀质量的纱线，同时还避免了制动表面的磨损。