| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil-based ink-jet ink which is excellent in cissing property to a nozzle plate and which not only can suppress the degradation of the nozzle plate, but also can give the printing of a high ink density. <P>SOLUTION: This oil-based ink-jet ink includes at least a pigment, a pigment dispersant, and a solvent, wherein the oil-based ink-jet ink contains additionally a cationic surfactant. The cationic surfactant is preferably a quaternary ammonium salt. Preferably, the solvent contains a higher fatty acid ester-based solvent, or contains a higher fatty acid ester-based solvent and a higher alcohol-based solvent. <P>COPYRIGHT: (C)2011,JPO&INPIT |
