abstract |
(57) [Summary] [PROBLEMS] To provide an electrostatic inkjet oil-based ink capable of forming a printing plate that is excellent in ink ejection stability, clear image forming property, and image strength, and can print a large number of clear image prints. Get. A monofunctional monomer which is soluble in a non-aqueous solvent and becomes insoluble by polymerization in a non-aqueous carrier liquid having an electric resistance of 10 9 Ω · cm or more and a dielectric constant of 3.5 or less. body, (B) and an amino group, an acidic group selected from -PO 3 H 2 group and -SO 3 H groups, each containing at least one in the same monomer, Monofunctional monomer copolymerizable with monomer (A), and (P) a polymer containing a specific component, wherein a part of the main chain of the polymer is crosslinked, An oil-based ink for electrostatic ink jetting comprising at least copolymer resin particles obtained by polymerizing and granulating a solution containing a dispersion stabilizing resin soluble in a solvent. |