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    • 2. 发明授权
    • Method and apparatus for melt spinning a multifilament yarn
    • 熔丝纺丝复丝纱线的方法和装置
    • US06551545B1
    • 2003-04-22
    • US09649624
    • 2000-08-28
    • Hans-Gerhard HutterKlaus SchäferDieter WiemerHansjörg MeiseDetlev Schulz
    • Hans-Gerhard HutterKlaus SchäferDieter WiemerHansjörg MeiseDetlev Schulz
    • D01D5084
    • D01D5/092
    • A method and an apparatus for melt spinning a multifilament yarn from a thermoplastic material, wherein a spinneret extrudes the thermoplastic material to strandlike filaments, which are initially in liquid form and then cooled to cause their solidification. For purposes of cooling, the filaments are precooled in a cooling zone downstream of the spinneret in such a manner that the filaments do not solidify. Subsequently, the filament bundle advances by the action of a coolant stream directed in the direction of the advancing yarn into a tension zone and undergoes further cooling until the filaments solidify in a solidification zone within the tension zone. To maintain the location of the solidification zone within the tension zone in a predetermined desired range thereof, an adjustable cooling of the filaments within the cooling zone is provided.
    • 一种用于从热塑性材料熔融纺丝复丝纱线的方法和装置,其中喷丝板将热塑性材料挤出成丝状丝,其初始为液体形式,然后冷却以使其固化。 为了冷却的目的,长丝在喷丝头下游的冷却区中预冷,使得长丝不固化。 随后,纤维束通过沿着前进纱线的方向指向的冷却剂流的作用进入张力区域,并进一步冷却直到长丝在张力区域内的凝固区域中固化。 为了将凝固区域的位置保持在张力区域的预定期望范围内,提供了冷却区域内的长丝的可调冷却。
    • 3. 发明授权
    • Method and apparatus for producing a highly oriented yarn
    • 用于生产高度定向纱线的方法和装置
    • US06478996B1
    • 2002-11-12
    • US09610275
    • 2000-07-06
    • Detlev SchulzHansjörg MeiseKlaus Schäfer
    • Detlev SchulzHansjörg MeiseKlaus Schäfer
    • D01D5084
    • D01D5/098D01D5/092D01F6/62
    • A method and an apparatus for producing a highly oriented yarn (HOY) wherein the yarn is withdrawn from the nozzle of a spinneret at a withdrawal speed of at least 6,500 m/min. The filaments forming the yarn are drawn during their solidification, so that a highly oriented molecular structure forms in the polymer. To withstand the withdrawal tension generated by the high withdrawal speed without overstressing the filaments, the filaments are assisted in their advance before they solidify such that prior to the solidification a tensile stress relief is effective on the filaments, and that during the solidification a reduced withdrawal tension is effective on the filaments while they are drawn.
    • 一种用于制造高取向纱线(HOY)的方法和装置,其中纱线以至少6500米/分钟的提取速度从喷丝头的喷嘴中取出。 形成纱线的长丝在其固化期间被拉伸,使得在聚合物中形成高度定向的分子结构。 为了承受由高抽出速度产生的抽出张力而不会使长丝过度应力,在其固化之前,丝线被提前协助,使得在固化之前拉伸应力消除对长丝有效,并且在固化期间减少退出 张力在拉丝时在丝上有效。
    • 7. 发明授权
    • Method for melt spinning filament yarns
    • 熔纺丝长丝纱的方法
    • US06824717B2
    • 2004-11-30
    • US10092110
    • 2002-03-06
    • Klaus Schäfer
    • Klaus Schäfer
    • D01D5092
    • D01D5/092D01D5/088
    • A method of melt spinning a group of multifilament yarns (1) from a polymer melt, wherein each group of yarns (10) is formed from a plurality of filaments (4) that are extruded through a nozzle bore (3) and withdrawn by a withdrawal means by the action of a withdrawal tension. In accordance with the invention, each group of yarns (10) is cooled in a precooling zone (5) and in an aftercooling zone (6) downstream thereof. The cooling in the precooling zone (5) and in the aftercooling zone (6) is adjusted such that the group of yarns (10) is cooled within the aftercooling zone (6) by the action of a coolant flow directed into the path of the yarn, so that the filaments (4) of the group of yarns (10) solidify in a solidification range within the aftercooling zone (6).
    • 一种从聚合物熔体熔融纺丝一组复丝纱线(1)的方法,其中每组纱线(10)由多根细丝(4)形成,所述多根细丝(4)通过喷嘴孔(3)挤出并由 戒断意味着撤离紧张的行动。 根据本发明,每组纱线(10)在预冷却区域(5)中和在其下游的后冷却区域(6)中被冷却。 调节预冷区(5)和后冷区(6)中的冷却,使得一组纱线(10)在后冷却区域(6)中被冷却剂流动的方式冷却 纱线(1)中的长丝(4)在后冷却区域(6)内的固化范围内固化。