| 摘要 |
<p>The disclosure describes a pigment composition comprising as the base material a base organic pigment and as the additive, the derivative of a starting organic pigment. The derivative is represented by the following general formula: (?) wherein D is the residue of a starting organic pigment, A is a carbonyl or sulfonyl group, R1 and R2 are each a hydrogen atom, non-substituted or substituted alkyl group, cycloalkyl group, aryl group or heterocyclic residue, or they may form a ring, R3 is a hydrogen atom or lower alkyl group, n is an integer of from 1 to 2 and m is an integer of from 1 to 4. This composition has excellent general properties such as anti-flocculation, solvent resistance and flow property in dispersion form.</p> |
