Permanent deep-dye polyester
    1.
    发明授权
    Permanent deep-dye polyester 有权
    永久深染涤纶

    公开(公告)号:US06284864B1

    公开(公告)日:2001-09-04

    申请号:US09679893

    申请日:2000-10-05

    IPC分类号: C08G6400

    CPC分类号: C08G63/20 D01F6/84

    摘要: The invention provides a method of making a copolyester and a resulting copolyester fiber that has increased dyeability and dye retention properties while maintaining good physical properties for textile applications. The fiber may be formed from a mixture comprising terephthalic acid and its ester equivalent in combination with ethylene glycol, and to which is added about 2-4 mole percent of at least two dicarboxylic acids, or their anhydride or ester equivalents excluding terephthalic acid and its ester equivalent, and between about 100 to 700 ppm pentaerytoritol, both being based on the amount of the terephthalic acid and its ester equivalent The dicarboxylic acids and pentaerytliritol may be added before esterification, or after esterification and before polycondensation.

    摘要翻译: 本发明提供一种制备共聚多酯和所得的共聚酯纤维的方法,其具有增加的染色性和染料保持性,同时保持纺织品应用的良好的物理性能。 纤维可以由包含对苯二甲酸及其酯当量与乙二醇组合的混合物形成,并且向其中加入约2-4摩尔%的至少两种二羧酸,或其除去对苯二甲酸和其对应的酸酐或酯等价物 酯当量和约100至700ppm的五味醇之间,均基于对苯二甲酸的量和其酯当量。二羧酸和季戊四醇二醇可以在酯化之前或酯化后和缩聚之前加入。