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    Method and apparatus for performing an open-end spinning operation
    1.
    发明授权
    Method and apparatus for performing an open-end spinning operation 失效
    用于执行开放式纺纱操作的方法和装置

    公开(公告)号：US3601969A

    公开(公告)日：1971-08-31

    申请号：US3601969D

    申请日：1969-01-27

    Applicant: TORAY INDUSTRIES

    Inventor： SUSAMI KOZO ,  TABATA MASAAKI ,  HIROTA MASAKAZU ,  MINAMI KEIICHI ,  KOJIMA TEIRYO

    IPC: D01H4/50 ,  D01H1/12 ,  D01H13/16

    CPC classification number: D01H4/50

    Abstract: A method and apparatus for operating a yarn in an open end spinning system utilizing pneumatic suction force and a centrifugal force due to a high speed rotation of the spinning rotor at a time of stopping or restarting the spinning operation. Tension of the spinning yarn delivered from the rotor is detected. By positively insertion of the yarn into the rotor when a yarn tension below a predetermined value is detected, an upstream yarn end is maintained in the rotor without any contact with fibers accumulated upon the inside wall of the rotor during abnormal rotation of the rotor. The mentioned contact is revived when a normal rotation is recovered. Combination of a mechanical insertion mechanism with a pneumatic insertion mechanism assures further preferable result in the yarn piecing operation.

    Spun yarn and a method for manufacturing the same
    4.
    发明授权
    Spun yarn and a method for manufacturing the same 失效
    弹簧纱及其制造方法

    公开(公告)号：US3660973A

    公开(公告)日：1972-05-09

    申请号：US86193369

    申请日：1969-09-29

    Applicant: TORAY INDUSTRIES

    Inventor： SUSAMI KOZO ,  MINAMI KEIICHI ,  TABATA MASAAKI ,  KOJIMA TEIRYO ,  YUNOKI ZYUJI

    IPC: D01H1/11 ,  D02G3/02 ,  D01H1/12

    CPC classification number: D01H1/11

    Abstract: A spun yarn having a particular internal configuration wherein the number of twists of the outer fibrous layer is different from that of the inner fibrous layer, spiral diameter of fibers composing the yarn is almost identical, unevenness index does not exceed 10 and variation coefficient of stretching tension is smaller than 4. In the manufacturing method, a particular relationship is established between the configurational feature of the supplied fiber bundle and the mechanical conditioning of the system.

    Abstract translation: 具有特定内部结构的纺织纱线，其中外纤维层的捻数与内纤维层的捻数不同，构成纱线的纤维的螺旋直径几乎相同，不均匀度指数不超过10，拉伸变化系数 张力小于4.在制造方法中，在所提供的纤维束的构造特征和系统的机械调节之间建立了特定的关系。

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