Process for improving the dyeability of nylon carpet fiber
    2.
    发明授权
    Process for improving the dyeability of nylon carpet fiber 失效
    改善尼龙地毯纤维染色性能的方法

    公开(公告)号:US4559196A

    公开(公告)日:1985-12-17

    申请号:US599409

    申请日:1984-04-12

    CPC分类号: D01F6/80 D02J13/00

    摘要: The dyeability of carpet yarns prepared from random copolymers of nylon 66 and 6-12 wt. % nylon 6 is improved by subjecting the yarn to saturated steam at temperatures close to the melting point of the copolymer. The copolymers used in the invention have an amine end content of 30-80 gram equivalents per 1000 kilograms of polymer and a relative viscosity of 55-85 in filament form.

    摘要翻译: 由尼龙66和6-12重量%的无规共聚物制备的地毯纱的染色性 通过在接近共聚物的熔点的温度下对纱线进行饱和蒸汽来改善%尼龙6。 本发明中使用的共聚物的胺末端含量为每1000千克聚合物30-80克当量,长丝形式的相对粘度为55-85。

    Spinneret capillaries
    4.
    发明授权
    Spinneret capillaries 失效
    喷丝毛细血管

    公开(公告)号:US5259753A

    公开(公告)日:1993-11-09

    申请号:US606659

    申请日:1990-10-31

    申请人: Henry Kobsa

    发明人: Henry Kobsa

    IPC分类号: D01D4/02 B29C47/12

    CPC分类号: D01D4/02

    摘要: A spinneret made from a hardened metal plate having one or more slot shaped capillaries exiting the face of the spinneret. The walls of the capillaries taper toward the face of the spinneret, and each capillary has a length to width ratio of greater than about 2.

    摘要翻译: 由硬化的金属板制成的喷丝头,其具有离开喷丝头表面的一个或多个槽形毛细管。 毛细管的壁朝着喷丝头的表面逐渐变细,每个毛细管的长宽比大于约2。

    Aqueous-quench spinning of polyamides
    9.
    发明授权
    Aqueous-quench spinning of polyamides 失效
    聚酰胺的水性骤冷纺丝

    公开(公告)号:US5362430A

    公开(公告)日:1994-11-08

    申请号:US90291

    申请日:1993-07-16

    IPC分类号: D01D5/088 D01F6/60 D01D5/08

    CPC分类号: D01F6/60 D01D5/0885

    摘要: Molten polyamide filaments are extruded from spinneret capillaries through a gas-filled gap and into a quench bath which contains a heated aqueous liquid. The bath has a nozzle defining a vertically disposed cylindrical passageway with its entrance in the bath below the bath surface. The filaments are converged into a filament bundle at the entrance and withdrawn from the exit of the passageway at a withdrawal speed of about 1500 to about 3500 meters per minute. The polyamide polymer is extruded from the spinneret such that the jet velocity in the spinneret capillaries is between 2 and 10% of the withdrawal speed of the filament from the exit of the nozzle passageway.

    摘要翻译: 熔融的聚酰胺长丝从喷丝头毛细管通过气体​​填充的间隙挤出并进入含有加热的含水液体的骤冷浴。 该浴具有限定垂直设置的圆柱形通道的喷嘴,其入口在浴表面下方。 长丝在入口处会聚成丝束,并以约1500至约3500米/分钟的提取速度从通道的出口排出。 从喷丝头挤出聚酰胺聚合物,使得喷丝头毛细管中的喷射速度为从喷嘴通道出口排出的细丝的提取速度的2至10%。

    Method for determining and controlling fiber luster properties
    10.
    发明授权
    Method for determining and controlling fiber luster properties 失效
    确定和控制纤维光泽特性的方法

    公开(公告)号:US5299133A

    公开(公告)日:1994-03-29

    申请号:US526853

    申请日:1990-05-22

    CPC分类号: G01N21/57

    摘要: A method of determining luster characteristics of fiber filaments utilizing a mathematical model of filament cross sectional shape and simulated impinging light to determine light distribution after interaction with the fiber and thereby determine luster properties. The method also includes a method for deriving individual filament cross sectional shapes of fibers in a bundle of touching filaments and for deriving therefrom other fiber properties and controlling the manufacturing parameters affecting such properties as well as luster properties.

    摘要翻译: 利用细丝横截面形状和模拟入射光的数学模型确定纤维丝的光泽特性的方法,以确定与纤维相互作用后的光分布,从而确定光泽性质。 该方法还包括一种用于导出一束接触长丝中的纤维的单个细丝横截面形状并用于从其衍生的其它纤维性质并控制影响这些性质以及光泽性质的制造参数的方法。