Process for the production of hydrophilic acrylic fibers
    1.
    发明授权
    Process for the production of hydrophilic acrylic fibers 失效
    生产亲水丙烯酸纤维的方法

    公开(公告)号:US5028369A

    公开(公告)日:1991-07-02

    申请号:US409698

    申请日:1989-09-20

    CPC分类号: D01F8/08

    摘要: A process for the discontinuous or (preferably) continuous production of dry spun hydrophilic acrylic fibers and threads with a core/sheath structure which have improved color fastness properties, more uniform cross-sections and better processing characteristics. By employing a new after-treatment combination of more intensive counterflow washing, stretching in steam, fixing in steam and careful drying of the fibers as staple fibers, improved hydrophilic fibers with a water retention capacity above 30% can be obtained from spinning solutions which have a much lower non-solvent content than is necessary in the present-state of the art for obtaining a high water retention capacity of the order indicated above.

    摘要翻译: 用于不连续或(优选)连续生产具有改善的色牢度特性,更均匀的横截面和更好的加工特性的具有芯/鞘结构的干纺亲水丙烯酸纤维和线的方法。 通过采用更强烈的逆流洗涤,蒸汽拉伸,蒸汽固定和纤维仔细干燥作为短纤维的新的后处理组合的新的后处理组合,可以从具有30%以上的纺丝溶液获得具有30%以上的改善的亲水性纤维, 比现有技术中所需的低得多的非溶剂含量,以获得上述顺序的高保水能力。

    Process for the treatment of a filament cable
    3.
    发明授权
    Process for the treatment of a filament cable 失效
    处理长丝电缆的方法

    公开(公告)号:US4760629A

    公开(公告)日:1988-08-02

    申请号:US122629

    申请日:1987-11-19

    CPC分类号: D02J13/00 D02G1/205

    摘要: The treatment of a filament cable in a device into which it is introduced, in which it is crimped, treated with a gas, and withdrawn, characterized by the fact that the cable is crimped using a crimping device which is operated gas-dynamically, which has been mounted into the front face of a device for the treatment of the cable with a gas, and is thus introduced into this device in the manner of a sluice, and is folded using a slide with an S-shaped section onto a gas-permeable, horizontally transporting base as a crimping cake, is treated there with the gas, and is finally withdrawn from the device.

    摘要翻译: 在其被引入的装置中处理丝线电缆,其中其被卷曲,用气体处理并且被抽出,其特征在于,使用气动动态地操作的压接装置使电缆卷曲, 已经被安装在用于处理电缆的设备的前面中,并且以闸门的方式被引入到该设备中,并且使用具有S形截面的滑块将其折叠到气 - 可渗透的水平输送基底作为卷边饼,在那里用气体处理,并最终从装置中取出。

    Process for treatment of filament cable
    4.
    发明授权
    Process for treatment of filament cable 失效
    长丝电缆处理工艺

    公开(公告)号:US4854020A

    公开(公告)日:1989-08-08

    申请号:US145574

    申请日:1988-01-19

    IPC分类号: D02G1/12 D02G1/20

    CPC分类号: D02G1/205

    摘要: Filament cables are crimped and the crimp cake of the filament cable obtained is passed over a gas permeable screen plate while gas flows to the bottom of the cake from flow through the screen plate so that the cake can be moved over the plate without making contact therewith or with reduced contact force and can be treated during its residence over the screen plate.

    摘要翻译: 丝束电缆被卷曲,并且所获得的细丝电缆的卷边饼通过透气性筛板,同时气体从流过筛板的流动到滤饼的底部,使得滤饼可以在板上移动而不与其接触 或具有降低的接触力并且可以在其在屏板上的居住期间进行处理。

    Continuous process for the production of polyacrylonitrile filaments and
fibers
    8.
    发明授权
    Continuous process for the production of polyacrylonitrile filaments and fibers 失效
    连续生产聚丙烯腈长丝和纤维的方法

    公开(公告)号:US4622195A

    公开(公告)日:1986-11-11

    申请号:US586578

    申请日:1984-03-06

    CPC分类号: D01F6/18 D02G1/122

    摘要: Polyacrylonitrile filaments and fibers may be obtained without interruption by spinning the spinning solution into a hot-air spinning duct, washing, drawing, crimping, preparing, steaming, drying cooling and, optionally, cutting at a take-off rate kept at 150 to 400 m/minute and for a tow weight of from 10 to 100 g/m when(a) the washing process is carried out in several stages on the countercurrent principle and a vibrating duct is used for transporting the spun tow through the washing process,(b) drawing is carried out before and/or after washing in a steam atmosphere at 100.degree. to 120.degree. C.,(c) crimping is carried out in an aerodynamic crimping unit using a hot, gaseous medium under a pressure of from 5 to 16 bars and at a temperature in the range from 50.degree. to 210.degree. C.,(d) the preparation is continuously applied to the tow before, during or after crimping,(e) for steaming, the tow is transported through a steaming apparatus in folded form and in the absence of tension on a vibrating duct and, at the same time, treated with steam at 100.degree. to 120.degree. C.,(f) finally, the tow is dried in folded form on a belt dryer using hot air at 60.degree. to 180.degree. C., subsequently cooled with cold air to temperatures below 50.degree. C. and, optionally, delivered to a cutting machine.

    摘要翻译: 可以通过将纺丝溶液旋转成热风纺丝管,洗涤,拉伸,卷曲,制备,蒸煮,干燥冷却和任选地以保持在150至400的起飞速率进行切割而获得聚丙烯腈长丝和纤维 (a)按照逆流原理在数个阶段进行洗涤过程,并且使用振动管道通过洗涤过程输送纺丝丝束(m / min,丝束重量为10-100g / m 2) b)在100-120℃的蒸汽气氛中洗涤之前和/或之后进行拉伸,(c)在空气动力学压接单元中使用热气体介质在5〜 16巴,温度范围为50至210℃,(d)在卷曲之前,期间或之后将制品连续施加到丝束上,(e)蒸汽时,丝束通过蒸汽装置 以折叠的形式和在没有紧张的情况下 振动管道,同时用100-120℃的蒸汽处理,(f)最后,使用60℃至180℃的热空气将丝束以折叠形式在带式干燥机上干燥,随后 用冷空气冷却到低于50℃的温度,并且任选地被输送到切割机。