ORGANIC PIGMENT COMPOSITION

摘要

This invention relates to pigment compositions comprising an organic pigment treated with about 0.1 to about 20% by weight, based on the organic pigment, of an N-heteroarylamidomethyl pigment derivative having the formula (I) <IMG> wherein Q represents an organic pigment moiety, NHet represents a nitrogen-containing heteroaromatic group attached at a ring nitrogen atom to the carbonyl function of the amidomethyl linking group, and n is from 1 to 4.