| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition having excellent color reproducibility in printing, transparency, gloss, water resistance and image preservability; having excellent image fastness, for example, in image gloss and preservability against ozone in a specific combination with an image-receiving material; and having an improved abrasion resistance, and to provide an inkjet recording method using the ink composition. SOLUTION: A solution containing a hydrophobic coloring matter, a hydrophobic polymer, a high boiling organic solvent having a solubility of water of <=4 g, and a cosolvent having a boiling point of <=20 deg.C and a solubility in water of <=25 g, and an aqueous solvent are mixed to form an emulsion. Subsequently, the cosolvent is removed to obtain a colored fine particles. The ink composition contains the colored fine particles. The average particle diameter of the colored fine particles is 0.01-0.5 μm, and a variation coefficient of the particle sizes is <=45%. The specific gravity of the ink composition is 0.9-1.2. The inkjet recording method comprises forming an image by shooting the ink composition on an ink receiving material, and subsequently, treating the colored fine particles by heating or pressing to fuse them. |
