| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide oil-based ink for inkjet recording, having recording applicability onto a polyvinyl chloride substrate and excellent ink stability and ejecting property (including re-ejecting ability after a halt of ejection). <P>SOLUTION: The oil-based inkjet recording ink contains at least, an azo pigment represented by formula (1), a polymer dispersant, a resin and an organic solvent. In formula (1), Z represents a divalent group derived from a 5 to 8-membered heterocycle containing nitrogen atom(s); Y<SB>1</SB>, Y<SB>2</SB>, R<SB>11</SB>, R<SB>12</SB>each independently represents a hydrogen atom or a substituent; G<SB>1</SB>and G<SB>2</SB>each independently represents a hydrogen atom, alkyl, aralkyl, alkenyl, alkynyl, aryl or heterocyclic; and W<SB>1</SB>and W<SB>2</SB>each independently represents alkoxy, amino, alkyl or aryl. <P>COPYRIGHT: (C)2011,JPO&INPIT |
