| 摘要 |
A pigment composition which shows a low viscosity even when prepared into a high-concentration dispersion and is therefore free from a decrease in gloss and tinting strength, the composition containing 100 parts by weight of a monoazo lake pigment obtained from beta -oxynaphthoic acid or beta -naphthol as a coupler component and an aromatic diamine having a water-soluble group as a diazo component, and 0.3 to 20 parts by weight of at least one compound selected from the group consisting of compounds of the formulae (1), (2) and (3), <IMAGE> (1) <IMAGE> (2) <IMAGE> (3) wherein X is independently a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, carboxyl, a nitro group, an amino group or hydroxyl, and n is an integer of 0 to 7; and a pigment dispersion containing the above pigment composition.
|
