PROBLEM TO BE SOLVED: To provide a method for draw false-twist texturing a polyester multi-filament yarn, capable of decreasing damage to the yarn as much as possible, simultaneously capable of thermally setting the yarn at a lower temperature than that in conventional methods, making the yarn stably travel, and further avoiding the fluctuation of the point at which the yarn is drawn, when the yarn is textured at a taking-up speed of at least 1000 m/min. ;SOLUTION: This high-speed draw false-twist texturing method comprises draw false-twist texturing a polyester multi-filament yarn at a taking-up speed of at least 1000 m/min, wherein a heater positioned on the upstream of the texturing device has such an internal structure that plural guides are arranged to regulate the traveling of the yarn and to prevent the yarn from directly contacting with the heater, and the above yarn-traveling regulation guides simultaneously satisfy the following requisites: (a) one guide (A) among the yarn-traveling regulation guides contacts with the yarn in a contact length of 5-20 mm; and (b) the other guides (B) of the yarn- traveling regulation guides contact with the yarn in a contact length of at longest 2 mm.;COPYRIGHT: (C)2001,JPO
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机译：解决的问题：提供一种用于拉伸聚酯复丝纱线的假捻变形的方法，该方法能够最大程度地减少对纱线的损害，同时能够以比常规方法更低的温度热定型该纱线。当以至少1000m / min的卷取速度对纱线进行变形时，使纱线稳定地行进，并且进一步避免了纱线被拉伸的点的波动。解决方案：该高速牵伸假捻变形方法包括以至少1000 m / min的卷取速度对聚酯复丝纱线进行牵伸假捻变形，其中加热器位于变形装置的上游。具有这样的内部结构：布置有多个引导器以调节纱线的行进并防止纱线直接与加热器接触，并且上述纱线行进调节引导器同时满足以下条件：（a）一个引导器（A ）在行进调节导纱器中，与纱线的接触长度为5-20 mm; （b）纱线行进调节导纱器的其他导纱器（B）与纱线的接触长度最长为2 mm 。;版权所有：（C）2001，JPO
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