Patent ID: 6982290

Claim:
An ink set, comprising: at least two color inks containing water-insoluble colorants for color inks having a different color with each other, wherein said ink set has at least one combination of two color inks satisfying that the difference in the average particle diameter of the particles contained in the water-insoluble colorant between these two color inks is 63 to 200 nm; wherein said ink set has comprises a color ink having a lower lightness and a color ink having a lightness higher than the color ink having a lower lightness, and wherein said ink set has at least one combination of two color inks satisfying that the average particle diameter of particles contained in the water-insoluble colorant used in the color ink having a lower lightness is larger than the average particle diameter of particles contained in the water-insoluble colorant used in the color ink having a lightness higher than the color ink having a lower lightness; and wherein the water-insoluble colorant is an aqueous dispersion of water-insoluble polymer particles containing a pigment or a hydrophobic dye.