Pigment particle growth and/or crystal phase directors

摘要

Pigment particle growth and/or crystal phase directors of the following formula: ;wherein: ;Q represents a pigment moiety; ;M represents a metal cation, quaternary N cation or H; ;X is an aromatic group, a cyclo-hetero aliphatic group with at least one 5 atom or 6 atom ring or a hetero aromatic group with at least one 6 atom ring and which is not a phthalimido group; ;Y is a sulfonic or carboxylic acid or salt thereof; ;m and n independently from each other represent an integer from 0 to 2.5; and ;o is an integer from 0.05 to 4.