AQUEOUS DIRECT DYE FORMULATIONS
    4.
    发明公开
    AQUEOUS DIRECT DYE FORMULATIONS 有权
    水直接染料配方

    公开(公告)号:EP2406326A2

    公开(公告)日:2012-01-18

    申请号:EP10712913.2

    申请日:2010-03-11

    申请人: BASF SE

    IPC分类号: C09B67/22 D21H21/28 C09B67/26

    摘要: The present invention relates to an aqueous direct dye formulation, comprising (a) 5 to 25 % by weight of a dye composition comprising (a1) 50-99 % by weight of one or more dyes obtainable by reduction or thermal treatment of Direct Yellow 11, and (a2) 1 -50 % by weight of a blue, black and/or red direct dye, (all based on the dye composition); (b) up to 0.9 % by weight of a saturated, cyclic or acyclic water-soluble amine comprising a primary, secondary or tertiary amino group and at least one further functional group selected from primary, secondary and tertiary amino groups, OH groups and ether groups; and (c) up to 0.9 % by weight of urea; and (d) water, wherein the percentages for (a), (b), and (c) relate to the total weight of the aqueous direct dye formulation. The invention moreover relates to a process for their preparation and the use thereof for the dyeing, in particular of paper, as well as paper which has been dyed with this aqueous direct dye formulation.

    AQUEOUS DYE DISPERSIONS
    5.
    发明公开
    AQUEOUS DYE DISPERSIONS 有权
    水性染料分散剂

    公开(公告)号:EP2393882A2

    公开(公告)日:2011-12-14

    申请号:EP10701384.9

    申请日:2010-01-29

    申请人: BASF SE

    IPC分类号: C09B67/00 D21H21/28

    摘要: The present invention relates to storage stable aqueous dye dispersions, comprising (a) 2.0 to 30.0 % by weight, based on the sum of (a), (b) and (c), of a dye of the formula (3) in which KK is a residue of a coupling component; (b) 0.1 to 20.0 % by weight, based on the sum of (a), (b) and (c), of at least one additive selected from the group consisting of wetting agents, dispersing agents, rheology modifiers, and preservatives; and (c) 50.0 to 97.9 % by weight, based on the sum of (a), (b) and (c), of water. The invention moreover relates to a process for their preparation and the use thereof for the dyeing, in particular of paper.