A colourless or only slightly coloured pigment dispersing agent which can be used to disperse pigments having various hues, and which has the general formula (1)
    wherein k is from 1 to 3, 1 is from 0 to 2, R1 is an amino group, R2 is a halogen atom, an amino group, a nitro group, a hydroxyl group, an alkoxy group, a carboxyl group, a sulfonic acid group, an optionally substituted alkyl group or an optionally substituted alkenyl group, X1 is -O- or -NR3- wherein R3 is a hydrogen atom, an optionally substituted alkyl group or an optionally substituted alkenyl group, Y1 is a amino derivative and Y2 is an amino derivative, a hydroxyl group, an alkoxy group or a group
    wherein X1, R2, R2 k and l are defined above.
                            一种无色或仅略带颜色的
颜料分散剂,可用于分散各种色调的
颜料,其通式为 (1)
 其中 k 为 1 至 3,1 为 0 至 2,R1 为
氨基,R2 为卤素原子、
氨基、硝基、羟基、烷氧基、羧基、
磺酸基、任选取代的烷基或任选取代的烯基、X1 是 -O- 或 -NR3- 其中 R3 是氢原子、任选取代的烷基或任选取代的烯基, Y1 是
氨基衍
生物,Y2 是
氨基衍
生物、羟基、烷氧基或基团
 其中 X1、R2、R2 k 和 l 的定义如上。