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    Lyocell multi-filament for tire cord and method of producing the same
    5.
    发明授权
    Lyocell multi-filament for tire cord and method of producing the same 失效
    用于轮胎帘线的Lyocell复丝及其制造方法

    公开(公告)号：US06852413B2

    公开(公告)日：2005-02-08

    申请号：US10735735

    申请日：2003-12-16

    申请人： Tae-jung Lee ,  Soo-myung Choi ,  Young-soo Wang ,  Seok-jong Han ,  Cheol Kim ,  Myung-woo Kim ,  Ik-hyon Kwon ,  Sung-ryong Kim ,  Jae-shik Choi

    发明人： Tae-jung Lee ,  Soo-myung Choi ,  Young-soo Wang ,  Seok-jong Han ,  Cheol Kim ,  Myung-woo Kim ,  Ik-hyon Kwon ,  Sung-ryong Kim ,  Jae-shik Choi

    IPC分类号： B29C47/00 ,  B60C9/00 ,  C08L1/02 ,  C08L29/04 ,  D01F1/02 ,  D01F2/00 ,  D02G3/46 ,  D02G3/48 ,  B60C9/08

    CPC分类号： D02G3/48 ,  B29C47/0014 ,  B29C47/8895 ,  B60C9/0042 ,  C08L1/02 ,  C08L29/04 ,  D01F2/00 ,  Y10T428/2913 ,  Y10T428/2965 ,  C08L2666/04

    摘要： Disclosed is a lyocell multi-filament for a tire cord and a method of producing the same. The method includes i) dissolving mixed powder of cellulose and polyvinyl alcohol in a mixed solvent of N-methyl morpholine N-oxide and water to prepare a dope, ii) extruding the dope using a spinning nozzle including orifices through air gaps into a conical upper coagulation bath to solidify the dope to produce a multi-filament, iii) feeding the multi-filament through a lower coagulation bath to a washing bath, and washing the multi-filament, and iv) drying and oiling the washed multi-filament and winding the resulting multi-filament. At this time, the orifices each have a diameter (D) of 100 to 300 μm, a length (L) of 200 to 2400 μm, and a ratio of the length to the diameter (L/D) of 2 to 8, and are spaced apart from each other at intervals of 2.0 to 5.0 mm. The method provides a lyocell multi-filament having excellent physical properties useful as a tire cord, thereby producing a tire for an automobile having improved driving stability, dimensional stability, and uniformity using the tire cord.

    摘要翻译： 公开了一种用于轮胎帘线的莱赛尔复丝及其制造方法。 该方法包括：将纤维素和聚乙烯醇的混合粉末溶解在N-甲基吗啉N-氧化物和水的混合溶剂中以制备涂料，ii）使用包括通过气隙的孔口的纺丝喷嘴将该涂料挤出成圆锥形 凝固浴固化涂料以产生复丝，iii）将复丝通过下部凝固浴输送到洗涤槽中，并洗涤复丝，并且iv）干燥并将洗涤的复丝和卷绕油 得到的复丝。 此时，孔的直径（D）为100〜300μm，长度（L）为200〜2400μm，长径比（L / D）为2〜8， 间隔2.0〜5.0mm。 该方法提供了可用作轮胎帘线的优异物理性能的莱赛尔复丝，由此制造了具有改善的行驶稳定性，尺寸稳定性和使用轮胎帘线的均匀性的汽车用轮胎。