| abstract |
Even when oil-based inkjet ink is printed on plain paper, it is difficult to permeate into the fiber gap of the printing paper, and a higher printing density can be secured. In an oil-based inkjet ink comprising at least a pigment, a pigment dispersant, and a solvent, a fluorine-based additive having a sulfonic acid group in the structure, vinylpyrrolidone as a pigment dispersant, and an alkene having 10 to 40 carbon atoms. A comb-type polyamide-based dispersant having a plurality of side chains composed of a copolymer and / or a polyester chain is contained. [Selection figure] None |