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    Apparatus for producing multifilaments
    1.
    发明授权
    Apparatus for producing multifilaments 失效
    用于生产复丝的装置

    公开(公告)号：US5609888A

    公开(公告)日：1997-03-11

    申请号：US444029

    申请日：1995-05-18

    申请人： Hitoshi Uda ,  Tetsuya Takahashi ,  Ryosuke Kamei ,  Takeshi Sano

    发明人： Hitoshi Uda ,  Tetsuya Takahashi ,  Ryosuke Kamei ,  Takeshi Sano

    IPC分类号： D01D5/088 ,  D01D5/16 ,  D01F6/04 ,  D01D5/092

    CPC分类号： D01D5/16 ,  D01D5/088 ,  D01F6/04

    摘要： An apparatus for producing multifilaments having high fiber strength is disclosed. A spinneret melt spins a polyolefin at a first temperature into filaments. A cooling duct cools the filaments via convection at a second temperature. A chill roll, disposed downstream from the cooling duct, has a third temperature, and forcibly conductively cools the filaments. Finally, heated drawing rolls, disposed downstream from said chill roll, continuously draw the filaments at a high draw ratio.

    摘要翻译： 公开了一种生产具有高纤维强度的复丝的装置。 喷丝头熔体在第一温度将聚烯烃旋转成长丝。 冷却管道在第二温度下经由对流冷却细丝。 设置在冷却管下游的冷却辊具有第三温度，并且强制地导电地冷却长丝。 最后，设置在所述冷却辊下游的加热拉伸辊以高拉伸比连续拉丝。

    Process for producing multifilaments
    2.
    发明授权
    Process for producing multifilaments 失效
    复丝生产工艺

    公开(公告)号：US5283025A

    公开(公告)日：1994-02-01

    申请号：US000099

    申请日：1993-01-04

    申请人： Hitoshi Uda ,  Tetsuya Takahashi ,  Ryosuke Kamei ,  Takeshi Sano

    发明人： Hitoshi Uda ,  Tetsuya Takahashi ,  Ryosuke Kamei ,  Takeshi Sano

    IPC分类号： D01D5/088 ,  D01D5/16 ,  D01F6/04 ,  D01D5/092 ,  D01D5/096

    CPC分类号： D01D5/16 ,  D01D5/088 ,  D01F6/04

    摘要： A process for producing multifilaments which has the steps of: melt spinning a polyolefin at a first temperature; cooling the spun filaments with a first chill means which is of a non-contact type and is held at a second temperature; cooling the filaments at a third temperature with a second chill means which is of a contact type for forcibly cooling the filaments; and drawing continuously the filaments at high draw ratio in-line with heating rolls having a predetermined surface temperature so that the filaments cooled at the third temperature are directly and continuously treated by the heating rolls.

    摘要翻译： 一种生产复丝的方法，其具有以下步骤：在第一温度下熔融纺丝聚烯烃; 用具有非接触型并保持在第二温度的第一冷却装置冷却纺丝长丝; 用第二冷却装置在第三温度下冷却细丝，第二冷却装置是用于强制冷却长丝的接触类型; 并且以高拉伸比连续地拉伸具有预定表面温度的加热辊的长丝，使得在第三温度下冷却的长丝被加热辊直接且连续地处理。

    Process for producing a monofilament having high tenacity
    4.
    发明授权
    Process for producing a monofilament having high tenacity 失效
    具有高强度的单丝的制造方法

    公开(公告)号：US4504432A

    公开(公告)日：1985-03-12

    申请号：US572610

    申请日：1984-01-23

    申请人： Ryosuke Kamei ,  Toyoaki Tanaka ,  Takeshi Sano ,  Masataka Kotani

    发明人： Ryosuke Kamei ,  Toyoaki Tanaka ,  Takeshi Sano ,  Masataka Kotani

    IPC分类号： D01F6/46 ,  D01D5/16 ,  D01F6/04 ,  D01D5/12

    CPC分类号： D01D5/16 ,  D01F6/04

    摘要： A monofilament of a thermoplastic resin having a high tenacity is produced by a process in which a monofilament is melt spun at a temperature of 220.degree. C. to 310.degree. C. from a thermoplastic resin through a nozzle having a cross-sectional area S (mm.sup.2) satisfying the following equations: ##EQU1## wherein I is a maximum cross-sectional secondary moment max (Ix, Iy) (i.e., the maximum secondary moment in the cross-sectional secondary moments with respect to the main x axis and y axis passing through the center of the gravity of the cross-section); and, then, is subjected to a multi-stage stretching under the conditions satisfying the following equations: ##EQU2## wherein i is a number of stretching stages, e is a base of natural logarithm (i.e., 2.71828), V.sub.1 is the first take-off linear velocity (m/min), V.sub.i+1 is the final take-off linear velocity (m/min) at the i-stretching stage, DR.sub.Ti is the total stretching ratio at the i-stretching stage, DR.sub.Tiw is the DR.sub.Ti from which the monofilament begins to become whitened at the i-stretching stage, T.sub.m is the melting point of the thermoplastic resin and .theta..sub.i is the temperature of the filament at the i-stretching stage.

    摘要翻译： 具有高强度的热塑性树脂的单丝通过一种方法制备，其中将单丝在220℃至310℃的温度下从热塑性树脂通过具有横截面积S（ mm2）满足以下等式：0.503mm2 θi / = 2）其中i是拉伸阶段的数量，e是自然对数的基数（即2.71828），V1是第一个起飞线速度（m / min），Vi + 1是最终的 起始线速度（m / min）在第i个拉伸阶段，DRTi是i拉伸阶段的总拉伸比，DRTiw是在i拉伸阶段单丝开始变白的DRTi 是热塑性树脂的熔点，θi是在i拉伸阶段的长丝的温度。

    Method of producing composite staple fibers consisting of resin matrix and fine inorganic fibers
    8.
    发明授权
    Method of producing composite staple fibers consisting of resin matrix and fine inorganic fibers 失效
    生产包含树脂基体和微细无纺纤维的复合胶条的方法

    公开(公告)号：US5171489A

    公开(公告)日：1992-12-15

    申请号：US311784

    申请日：1989-02-17

    申请人： Yohsuke Hirao ,  Hirokazu Yamada ,  Ryosuke Kamei

    发明人： Yohsuke Hirao ,  Hirokazu Yamada ,  Ryosuke Kamei

    IPC分类号： B29B9/00 ,  B29B9/14 ,  D01D5/18 ,  D01F1/10 ,  D01F6/46

    CPC分类号： D01D5/0985 ,  B29B9/00 ,  B29B9/14 ,  D01D5/18 ,  D01F1/10 ,  B29K2307/00

    摘要： A method for producing composite staple fibers whereby resin matrix and fine and short inorganic reinforcing fibers (e.g., vapor growth carbon fibers and/or potassium titanate whiskers) are processed. A resin material and fine and short inorganic reinforcing fibers having a fiber diameter of 1 .mu.m or less are blended, heated, and mixed to prepare a molten polymer containing dispersed reinforcing fibers. The molten polymer is spouted out of small apertures in a high speed rotator to form filaments. Hot gas is blown onto the spouted filaments to form composite staple fibers. Instead of using the spouting step and the hot gas blowing step, one can spin the molten polymer from spinning apertures into filaments, and simultaneously blow hot gas onto the filaments at a high flow velocity from gas discharging holes arranged near the spinning apertures to draw and cut the filaments into the staple fibers.

    摘要翻译： 制造复合短纤维的方法，由此处理树脂基质和细小的无机增强纤维（例如气相生长碳纤维和/或钛酸钾晶须）。 将树脂材料和纤维直径为1μm以下的细短的无机增强纤维混合，加热混合，制成含有分散的增强纤维的熔融聚合物。 熔融聚合物从高速旋转器中的小孔中喷出以形成长丝。 将热气吹到喷丝丝上以形成复合短纤维。 代替使用喷射步骤和热气体吹送步骤，可以将熔融聚合物从旋转孔旋转到细丝中，并且同时以高流速将热气体从布置在纺丝孔附近的气体排出孔吹到长丝上， 将长丝切成短纤维。