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    Composite fiber
    2.
    发明授权
    Composite fiber 有权
    复合纤维

    公开(公告)号：US06811874B2

    公开(公告)日：2004-11-02

    申请号：US10344418

    申请日：2003-08-13

    申请人： Kazuhiko Tanaka ,  Masao Kawamoto ,  Hitoshi Nakatsuka ,  Nobuhiro Koga ,  Ichirou Inoue ,  Tateki Yamakawa

    发明人： Kazuhiko Tanaka ,  Masao Kawamoto ,  Hitoshi Nakatsuka ,  Nobuhiro Koga ,  Ichirou Inoue ,  Tateki Yamakawa

    IPC分类号： D01F800

    CPC分类号： D01F8/10 ,  Y10T428/2924 ,  Y10T428/2929 ,  Y10T428/2931

    摘要： A core/sheath conjugate fiber comprises a sheath component B of an ethylene-vinyl alcohol copolymer and a core component A of a different thermoplastic polymer. In its cross section, the core component A has at least 10 projections or exists as an aligned group of at least 10 flattened cross-section core components, the distance (I) between the neighboring projections or between the neighboring flattened cross-section core components is at most 1.5 &mgr;m, the projections or the flattened cross-section core components are so positioned that their major axes are all at an angle of 90°±15° to the outer periphery of the fiber cross section, and the ratio (X) of the outer peripheral length (L2) of the core component A to the outer peripheral length (L1) of the conjugate fiber satisfies the following formula (1): X/C≧2  (1) wherein X indicates the ratio of the outer peripheral length of the core component A to the outer peripheral length of the conjugate fiber (L2/L1); and C indicates the conjugate ratio by mass of the core component A to the overall conjugate fiber defined as 1.

    摘要翻译： 芯/鞘复合纤维包含乙烯 - 乙烯醇共聚物的鞘组分B和不同热塑性聚合物的核心组分A. 在其横截面中，芯部件A具有至少10个突起或作为至少10个扁平横截面芯部件的对准组存在，相邻突出部之间的距离（I）或相邻的扁平横截面芯部件 至多1.5μm，突起或扁平的横截面芯部件被定位成使得其长轴全部与纤维横截面的外周成90°±15°的角度，并且比率（X） 核心成分A的外周长（L2）与复合纤维的外周长（L1）的比例满足下式（1）：其中，X表示核成分A的外周长与 复合纤维的外周长（L2 / L1）; C表示核心成分A与定义为1的总复合纤维的质量的共轭比。