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    Polytetrafluoroethylene fiber and method for manufacturing the same
    6.
    发明公开
    Polytetrafluoroethylene fiber and method for manufacturing the same 有权
    Polytetrafluorethylenfaser和Verfahren zu deren Herstellung

    公开(公告)号：EP1439247A1

    公开(公告)日：2004-07-21

    申请号：EP04001104.1

    申请日：2004-01-20

    申请人： Yeu Ming Tai Chemical Industrial Co., Ltd.

    发明人： Huang, James, c/o Yeu Ming Tai Chem. Ind. Co. Ltd. ,  Chou, Chin-Chun, c/o Yeu Ming Tai Chem. Ind. Co. ,  Chou, Chin-Cha, c/o Yeu Ming Tai Chem. Ind. Co. ,  Chen, Shia-Chung ,  Kuo, Wen-I, c/o Yeu Ming Tai Chem. Ind. Co. ,  Huang, Lei-Ti, c/o Yeu Ming Tai Chem. Ind. Co.

    IPC分类号： D01F6/12 ,  D01D5/42

    CPC分类号： D01D5/423 ,  D01F6/12 ,  Y10T428/2913 ,  Y10T428/2965 ,  Y10T428/2973 ,  Y10T428/2976 ,  Y10T428/3154

    摘要： A PTFE fiber with a low density and having a network structure that allows effective performances to be given to its finished articles and a method for manufacturing the PTFE fiber are provided. The PTFE fiber is a filament obtained by giving a heat treatment to a biaxially stretched polytetrafluoroethylene (PTFE) film, followed by slitting partially in a lengthwise direction of the film. The filament includes a network structured fiber (1) in which single fibers (2) are opened partially in the width direction, and the filament is an aggregate of the single fibers (2). This fiber is manufactured as the filament by feeding a biaxially stretched PTFE film to a revolving pin roll with needles implanted thereon, the needles being arranged so that a plurality of rows run obliquely along a circumferential direction at substantially regular intervals, and slitting the film partially in a lengthwise direction. This PTFE filament may be cut into short fibers with a cutter. The short fibers include a branch structure.

    摘要翻译： 提供了一种具有低密度且具有能够对其成品赋予有效性能的网状结构的PTFE纤维和PTFE纤维的制造方法。 PTFE纤维是通过对双轴拉伸的聚四氟乙烯（PTFE）膜进行热处理而获得的长丝，然后在膜的长度方向上部分切割。 灯丝包括其中单个纤维（2）在宽度方向上部分地打开的网状结构纤维（1），并且灯丝是单纤维（2）的聚集体。 该纤维通过将双轴拉伸的PTFE膜供给到植入了针的旋转销辊而被制造为长丝，针被布置为使得多个列以大致规则的间隔沿圆周方向倾斜地延伸，并且部分地切割膜 沿长度方向。 该PTFE丝可以用切割机切成短纤维。 短纤维包括分支结构。

    Polytetrafluoroethylene real twist yarn and method of producing the same
    7.
    发明公开
    Polytetrafluoroethylene real twist yarn and method of producing the same 有权
    Echtgedrehtes Polytetrafluorethylen-Garn und Herstellungsverfahrendafür

    公开(公告)号：EP2290140A1

    公开(公告)日：2011-03-02

    申请号：EP10006252.0

    申请日：2010-06-16

    申请人： Yeu Ming Tai Chemical Industrial Co., Ltd.

    发明人： Huang, James ,  Chou, Chin-Chun ,  Chou, Chin-Cha ,  Kuo, Wen-I

    IPC分类号： D02G3/06 ,  D01D5/42 ,  D01F6/12

    CPC分类号： D02G3/06 ,  D10B2321/042

    摘要： The PTFE real twist yarn of the present invention is a PTFE real twist yarn (41) obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments (42) is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: t ⁢ w ⁢ i ⁢ s ⁢ t c ⁢ o ⁢ e ⁢ f ⁢ f ⁢ i ⁢ c ⁢ i ⁢ e ⁢ n ⁢ t K = n ⁢ u ⁢ m ⁢ b ⁢ e ⁢ r o ⁢ f t ⁢ w ⁢ i ⁢ s ⁢ t ⁢ s T × t ⁢ h ⁢ e f ⁢ i ⁢ n ⁢ e ⁢ n ⁢ e ⁢ s ⁢ s D o ⁢ f t ⁢ h ⁢ e P ⁢ T ⁢ F ⁢ E r ⁢ e ⁢ a ⁢ l t ⁢ w ⁢ i ⁢ s ⁢ t y ⁢ a ⁢ r ⁢ n 1 / 2
    where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.

    摘要翻译： 本发明的PTFE实捻纱是通过加捻聚四氟乙烯（PTFE）复丝狭缝纱得到的PTFE实捻纱（41）。 该纱线具有圆形横截面，圆形度在10/8〜10/10的范围内，其中圆度由长轴宽度与短轴宽度之比表示，细丝的平均细度（42） 在1.5至200分特的范围内，细度D在50至6000分特的范围内，并且由公式（1）表示的扭曲系数K在10000至35000的范围内：t ¢w ¢i ¢ ¢¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ t t t t t t t¢¢¢¢¢¢¢¢¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢¢ ¢ ¢ ¢ ¢ ¢ ¢¢ ¢ ¢ ¢ ¢ ¢ ¢ r ¢n 1/2其中扭曲数T表示每米的扭曲数，细度D是总细度。

    Polytetrafluoroethylene fiber and method for manufacturing the same
    10.
    发明公开
    Polytetrafluoroethylene fiber and method for manufacturing the same 有权
    Polytetrafluorethylenfaser和Verfahren zu deren Herstellung

    公开(公告)号：EP1574603A1

    公开(公告)日：2005-09-14

    申请号：EP05005155.6

    申请日：2005-03-09

    申请人： Yeu Ming Tai Chemical Industrial Co., Ltd.

    发明人： Huang, James Yeu Ming Tai Chemical Ind. Co., Ltd. ,  Chou, Chin-Chun Yeu Ming Tai Chem. Ind. Co., Ltd. ,  Chou, Chin-Cha Yeu Ming Tai Chem. Ind. Co., Ltd. ,  Chen, Shia-Chung ,  Kuo, Wen-I Yeu Ming Tai Chemical Ind. Co., Ltd. ,  Huang, Lei-Ti Yeu Ming Tai Chemical Ind. Co., Ltd.

    IPC分类号： D01F6/12 ,  D01D5/42

    CPC分类号： D01F6/12 ,  D01D5/423

    摘要： A polytetrafluoroethylene (PTFE) fiber includes a filament (1) obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament (1) includes a network structure (3) in which single fibrils (2) that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.

    摘要翻译： 聚四氟乙烯（PTFE）纤维包括通过在膜的长度方向上部分切割取向的PTFE膜获得的长丝（1）。 压花加工沿着膜的长度方向线性地进行，并且在薄膜的宽度方向上像之字形或凸凹形状一样进行切割，由此细丝（1）包括网状结构（3），其中 被部分打开的单个原纤维（2）定期布置。 通过切割上述丝并获得分支结构，得到PTFE短纤维。 由此，可以提供具有单原纤维的平均细度小，均匀细度和单峰分布的PTFE纤维，其中心的细度和高产率，并且具有均匀和稳定的分支结构的方法 可以提供PTFE纤维的制造。