Pigment composition

摘要

A phthalocyanine pigment composition comprising a phthalocyanine pigment and a sulphonated phthalocyanine derivative of the formula (RNHSO2)m-Pc-(SO3(-)N(+)H3R)n WHEREIN THE SUM OF M AND N IS 1 TO 4 AND R is a tertiary alkyl having 18 to 22 carbon atoms, which composition gives very good flow and strength when incorporated into paint and ink application media.