Surface-treated colour pigment, coloured substrate particles and production process thereof

摘要

A surface-treated colour pigment comprising a pigment coated with 0.2 to 100 parts by weight, per 100 parts by weight of the pigment, of a surface-treatment agent selected from a monobasic aromatic carboxylic acid and an amino compound having 2 amino groups in its molecule and not having a carboxyl group.