Aqueous dispersions of solids, especially dyestuffs and pigments, containing, as dispersing agent, a compound of the formula:
wherein
R is an aryl or arylene group which is free from aliphatic substituents containing 6 or more carbon atoms;
Y is -0-, -CH20- or -CO.O-;
m + n is from 3 to 30;
p is from 1 to 3;
q is 1 or 2;
X is S04 and r is 2-p, or X is PO4 and r is 3-p; and
M is H, NH4, a substituted ammonium radical or an alkali metal.
The dispersions are suitable for the preparation of print pastes based upon synthetic or natural thickening agents. The dispersions containing disperse dyestuffs are also suitable for the continuous dyeing of cellulose/polyester blends in conjunction with vat or cellulose reactive dyestuffs.
固体,特别是
染料和
颜料的
水性分散体,其中含有作为分散剂的式化合物:
其中
R 是不含 6 个或更多碳原子的脂肪族取代基的芳基或芳基烯基;
Y 是-0-、-CH20-或-CO.O-;
m + n 是 3 至 30;
p 是 1 至 3
q 是 1 或 2;
X 为 S04,r 为 2-p,或 X 为 PO4,r 为 3-p;以及
M 是 H、NH4、取代的
铵基或碱
金属。
分散体适用于制备基于合成或天然
增稠剂的印花浆。含有
分散染料的分散体还适用于
纤维素/涤纶混合物与
还原染料或
纤维素活性
染料的连续染色。