Patent ID: 7264664

Claim:
An ink set comprising: an ink composition comprised of a coloring agent, an organic solvent, water, and a surfactant having difference d 1 (σ 10 −γ) which is difference between dynamic surface tension (σ 10 ) of the solution obtained by making 0.1 wt % solution dissolved in purified water to be measured by using a maximum bubble pressure method at the bubble frequency of 1OHz at a temperature from 24° C. to 26° C. and static surface tension (γ) to be measured at a temperature from 24° C. to 26° C. and which satisfies the following expression (1) OmN/m≦d 1 ≦15 mN/m (1) wherein said coloring agent comprises at least one pigment selected from the group consisting of (1) at least one selected from the group consisting of C.I. Pigment blue 15:3 and C.I. Pigment blue 15:4, (2) at least one selected from the group consisting of C.I. Pigment red 122, C.I. Pigment red 209, and C.I. Pigment violet 19, and (3) at least one selected from the group consisting of C.I. Pigment yellow 74, C.I. Pigment yellow 138, C.I. Pigment yellow 150, and C.I. Pigment yellow 180.