PIGMENT COMPOSITION AND INK CONTAINING SAME

摘要

PROBLEM TO BE SOLVED: To obtain a pigment composition having excellent flowability and gloss by mixing a metal phthalocyanine and/or a halogenated metal phthalocyanine with a metal phthalocyaninesulfonic acid polyoxyalkyleneammonium and/or a halogenated metal phthalocyaninesulfonic acid polyoxyammonium. SOLUTION: There is provided a pigment composition comprising 100 pts.wt. metal phthalocyanine and/or halogenated metal phthalocyanine and 1-30 pts.wt. metal phthalocyaninesulfonic acid polyoxyalkyleneammonium and/or halogenated metal phthalocyaninesulfonic acid polyoxyalkyleneammonium represented by formula I or II. This composition is mixed with a liquid synthetic resin vehicle and a solvent to prepare a gravure ink. In the formulae, Me is a di- or tri-valent metal atom; Pc is a phthalocyanine ring; R1 to R3 are each H or a 1-5C alkyl; R4 is H or methyl; n is 2-100; and l+m=1-4.