| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing an inkjet ink composition especially enabling a high-density dot hardly causing bleeding to be printed stably at a high speed. <P>SOLUTION: The method for producing the ink composition for an inkjet recording device, at least containing a nonaqueous solvent, a coloring matter covered with a resin insoluble in the nonaqueous solvent, and a dispersant comprises a first dispersion treatment step for subjecting the coloring matter covered with the resin insoluble in the nonaqueous solvent to a dispersion treatment together with the dispersant within a temperature range of ≥10°C and <40°C, and a second dispersion treatment step for subjecting the dispersion obtained in the first dispersion treatment step to the dispersion treatment within a temperature range of 40-60°C again. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
