| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active radiation curable ink composition for inkjet recording excellent in discharge accuracy even after storage for an extended period or aging at an elevated temperature. <P>SOLUTION: This active radiation curable ink composition for inkjet recording includes (A) at least one of an azo pigment represented by general formula (1) (wherein Z is a divalent group derived from a 5-8 membered nitrogen-containing heterocycle; Y<SP>1</SP>, Y<SP>2</SP>, R<SP>11</SP>and R<SP>12</SP>are each independently a hydrogen atom or a substituted group; G<SP>1</SP>and G<SP>2</SP>are each independently a hydrogen atom, an alkyl, aralkyl, alkenyl, alkynyl, aryl or heterocyclic group; W<SP>1</SP>and W<SP>2</SP>are each independently an alkoxy, amino, alkyl or aryl group), its tautomer, and these salts and hydrates, (B) a polymer dispersant, (C) a cationic polymerizable compound, and (D) a cationic polymerization initiator. <P>COPYRIGHT: (C)2010,JPO&INPIT |
