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    AQUEOUS DYESTUFF PREPARATIONS OF WATER-INSOLUBLE OR WATER SOLUBLE DYES
    1.
    发明授权
    AQUEOUS DYESTUFF PREPARATIONS OF WATER-INSOLUBLE OR WATER SOLUBLE DYES 失效

    公开(公告)号：KR820000257B1

    公开(公告)日：1982-03-10

    申请号：KR780003540

    申请日：1978-11-23

    Applicant: CIBA GEIGY AG

    Inventor： BECKER C

    IPC: C09B67/00

    Abstract: Aq. storage-stable, low-viscosity dispersions of dyes & fluorescent whiteners with particle size 65% ethylene oxide with mol. wt.> 1200, polyol, and auxiliaries. Thus, 400 parts I(dried to a low electrolyte content) was milled with a sulfonated kraft lignin 10, polyethylene-propylene glycol (mol. wt. 16500, 80% ethylene oxide) 20, H2O 398, propylene glycol 170, and preservative 2 parts to give a dye.

    Process for the production of highly concentrated dyestuff and pigment preparations
    2.
    发明授权
    Process for the production of highly concentrated dyestuff and pigment preparations 失效
    生产高浓度染料和色素制剂的方法

    公开(公告)号：US3844806A

    公开(公告)日：1974-10-29

    申请号：US32116873

    申请日：1973-01-05

    Applicant: CIBA GEIGY AG

    Inventor： WEGMANN J ,  BECKER C

    IPC: C08J3/22 ,  C09B67/20 ,  C09B67/42 ,  C08H17/02 ,  C08F45/24

    CPC classification number: C09B67/0071 ,  C08J3/226 ,  C09B67/006

    Abstract: A process for the production of dyestuff preparations is described comprising subjecting a suspension of a difficultly water-soluble or water-insoluble dyestuff in water and/or an organic solvent having limited solubility in water and forming a two-phase system, optionally in the presence of a deflocculating agent to a particle-size-reducing operation until the particle size of the said suspension is preferably at most 2 microns; the subsequent addition, after removal of mechanical grinding agents present, of the water necessary for the formation of a two-phase system, or of the organic solvent having limited solubility in water; the addition to the dyestuff suspension, after formation of the two-phase system, of at least one high-molecular carrier, particularly cellulose ether or -ester, soluble in water or in the organic solvent having limited solubility in water, but insoluble in the two-phase system; the treatment of the carrier suspension until the organic phase containing the dyestuff has become evenly dispersed over the surface of the high-molecular carrier; the subsequent removal of the solvent; and, finally, the drying of the obtained dyestuff preparation, or dispersion thereof in water or in an organic solvent.

    Abstract translation: 描述了一种制备染料制剂的方法，包括将困难的水溶性或水不溶性染料的悬浮液在水和/或在水中具有有限的溶解度的有机溶剂中并且形成两相体系，任选地存在 的抗絮凝剂至粒径减小操作，直到所述悬浮液的粒度优选为至多2微米; 在除去存在的机械研磨剂之后，加入形成两相体系所必需的水，或在水中溶解度有限的有机溶剂; 在形成两相体系之后，添加至少一种可溶于水或有机溶剂的高分子载体，特别是纤维素醚或酯的染料悬浮液，其在水中的溶解度有限，但不溶于 两相系统; 载体悬浮液的处理直到含有染料的有机相已经均匀分散在高分子载体的表面上; 随后除去溶剂; 最后将得到的染料制剂或其分散体干燥在水或有机溶剂中。

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