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    Polytetrafluoroethylene fiber and method for manufacturing the same
    2.
    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。