Process for improving the dyeability of nylon carpet fiber
    1.
    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。

    Process for preparing a nylon fiber with reduced spherulites
    5.
    发明授权
    Process for preparing a nylon fiber with reduced spherulites 失效
    制备具有降低球晶的尼龙纤维的方法

    公开(公告)号:US4919874A

    公开(公告)日:1990-04-24

    申请号:US95234

    申请日:1987-09-11

    摘要: A process for preparing a nylon 66/6 copolymer fiber with reduced spherulites comprising adding 1-6% caprolactam and 0.001-2% water-soluble inorganic calcium salt to 94-99% nylon 66 salt to form a nylon 66/6 salt solution, polymerizing the salt solution to form a polymer, and extruding the polymer.

    摘要翻译: 一种制备具有降低球晶的尼龙66/6共聚物纤维的方法,包括向94-99%尼龙66盐中加入1-6%己内酰胺和0.001-2%水溶性无机钙盐以形成尼龙66/6盐溶液, 聚合该盐溶液以形成聚合物,并挤出该聚合物。

    Dyed antistain nylon with cationic dye modifier
    9.
    发明授权
    Dyed antistain nylon with cationic dye modifier 失效
    染色抗静电尼龙与阳离子染料改性剂

    公开(公告)号:US5468554A

    公开(公告)日:1995-11-21

    申请号:US260163

    申请日:1994-06-15

    摘要: Shaped articles, such as fibers, formed of a polyamide formed by salt-blending the polyamide precursor salt with a cationic dye modifier, such as the dimethyl ester of 5-sulfoisophthalic acid, followed by polymerization, are rendered resistant to staining by acid dyes at ambient conditions either by adding an acid dye to the polymer melt or by dyeing with an acid dye from an acid dyebath at pH 2 to 7 and 60.degree. to 100.degree. C. so that the shaped article contains from at least 0.0048 and preferably at least 0.0096 wt % of an acid dyestuff. In a preferred aspect of the invention, the shaped articles are oriented, crimped, heat-set fibers for use as the facing in carpets.

    摘要翻译: 通过将聚酰胺前体盐与阳离子染料改性剂如5-磺基间苯二甲酸的二酯盐共混形成的聚酰胺形成的成型物品,例如纤维,随后进行聚合,耐酸性染料 环境条件是通过向聚合物熔体中加入酸性染料或通过酸性染料从酸性染浴在pH 2至7和60℃至100℃下染色,使成型制品含有至少0.0048,优选至少 0.0096重量%的酸性染料。 在本发明的优选方面,成型制品被定向,卷曲,热定型纤维用作地毯中的面。