| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet recording ink set which prevents bleeding between each of color inks and a black ink and has high ejection reliability and superior image quality.SOLUTION: The inkjet recording ink set includes the black ink and color inks comprising a cyan ink, a magenta ink and a yellow ink. The black ink contains a colored polymer emulsion particle, which is obtained by dispersing, in water, carbon black coated with a vinyl polymer or a polyester polymer, a water-soluble solvent, a surfactant and water. Each of the cyan ink, the magenta ink and the yellow ink contains a corresponding color dye, a water-soluble solvent and water. The content S of the water-soluble solvent in each color ink is ≥40 mass% of the total mass of each color ink and the ratio (S/W) of the content S of the water-soluble solvent to the content W of the water in each color ink is 0.7-1.6. Each color ink does not have a flash point when measured by the Cleveland open cup method. |
