| abstract |
Disclosed is a colorant uniformly dispersed in fine particles, excellent in dispersion stability of a colorant dispersion, having high ejection stability without causing clogging at a nozzle portion, and further being capable of drying on a recording paper and recording images. Provided is an oil-based ink for an ink jet printer having excellent water resistance and light resistance and high scratch resistance. Provided are an oil-based ink for an electrostatic inkjet printer and a liquid developer for electrophotography, which are excellent in dispersion stability and scratch resistance, and have excellent charge polarity control and charge aging stability. A monofunctional polymerizable monomer (A) is obtained by using, as seed particles, colored component fine particles obtained by dispersing a colored component obtained by surface-treating a colorant in a non-aqueous solvent into fine particles. ), A monofunctional monomer (B) having a silicon atom and / or fluorine atom-containing substituent and copolymerizable with the monomer (A), and a dispersion stabilizer soluble in a non-aqueous solvent The dispersion liquid to which the agent (P) is added is dispersion-polymerized in the presence of a polymerization initiator to produce colored resin particles, which are used as an oil-based ink composition for inkjet printers or a liquid developer for electrophotography. [Selection figure] None |