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    Process for preparing multi-colored dyed polyamide substrates
    1.
    发明公开
    Process for preparing multi-colored dyed polyamide substrates 失效
    Verfahren zur Herstellung vonmultigefärbtenPolyamid-Substraten。

    公开(公告)号：EP0490676A1

    公开(公告)日：1992-06-17

    申请号：EP91311564.8

    申请日：1991-12-12

    申请人： HOECHST CELANESE CORPORATION

    发明人： Kelley, Larry C.

    IPC分类号： D06P1/56 ,  D06P1/58 ,  D06P1/52 ,  D06P1/382 ,  D06P1/384 ,  D06P5/12 ,  D06P3/24

    CPC分类号： D06P1/5257 ,  D06P1/382 ,  D06P1/384 ,  D06P1/56 ,  D06P1/58 ,  D06P3/248 ,  D06P5/12 ,  Y10S8/924 ,  Y10S8/929

    摘要： This is a method for producing multi-colored polyamide dyeings which is particularly useful in the multi-colored dyeing of polyamide carpets. In this method, a three-component dyeing system is employed which comprises a fiber reactive dye, an anionic resist and an acid-type dye. The anionic resist is a water-soluble, fiber substantative compound which displaces and/or prevents the fiber-reactive dye form fixing in that portion of the carpet which has been treated with the resist. The anionic resist, however, will not displace the acid-type dye component nor does it prevent fixation of the acid-type dye component. The invention may be practiced by first printing the polyamide substrate in a predetermined pattern with a printing paste containing the acid-type dye and the anionic resist. The substrate is then flooded or blotch printed with the fiber reactive dye and steamed to fix the dyes. Alternatively, the substrate may be first flooded or blotch printed with the fiber reactive dye. The acid-type dye and anionic resist are then printed on top of the fiber reactive dye. The anionic resist displaces the fiber-reactive dye and the dyes are fixed by steaming. The method produce fine distinct color patterns with essentially no blurring or mixing of the colors between the printed and unprinted portions of the substrate.

    摘要翻译： 这是生产多色聚酰胺染色的方法，其特别适用于聚酰胺地毯的多色染色。 在该方法中，使用三组分染色体系，其包含纤维活性染料，阴离子抗蚀剂和酸型染料。 阴离子抗蚀剂是一种水溶性的纤维有力化合物，其在已经用抗蚀剂处理的地毯部分中移动和/或防止纤维反应性染料形式的固定。 然而，阴离子抗蚀剂不会取代酸型染料组分，也不会阻止酸型染料组分的固定。 本发明可以通过首先用含有酸型染料和阴离子抗蚀剂的印刷浆料以预定图案印刷聚酰胺基材来实施。 然后将基材用纤维活性染料淹没或印迹并蒸汽固定染料。 或者，基材可以首先用纤维活性染料淹没或印刷。 然后将酸型染料和阴离子抗蚀剂印刷在纤维活性染料的顶部。 阴离子抗蚀剂置换纤维反应性染料，染料通过蒸汽固定。 该方法产生精细的不同颜色图案，基本上不会在基板的印刷部分和未印刷部分之间的颜色模糊或混合。

    REACTIVE DYE BATH FOR TEXTILE AND DYEING METHOD
    8.
    发明公开
    REACTIVE DYE BATH FOR TEXTILE AND DYEING METHOD 审中-公开

    公开(公告)号：EP3441520A1

    公开(公告)日：2019-02-13

    申请号：EP16892133.6

    申请日：2016-03-08

    申请人： The Hong Kong Research Institute of Textiles and Apparel Limited

    发明人： KEH, Edwin Yee Man

    IPC分类号： D06P1/90 ,  D06P1/58 ,  D06P1/38

    摘要： The present invention relates to a reactive dye bath and a dyeing process for textiles. The reactive dye bath for textiles comprises an organic solvent, an aqueous dye solution, a surfactant and a co-surfactant. The reactive dye bath or the dyeing process of the present invention allows for full up-take of the dye without subjecting the textiles to any special pretreatment and without the addition of a salt for accelerating dyeing, so as to obtain dyed textiles with a higher dyeing depth, uniformity and fastness.