| 摘要 |
Provided is a water-based ink set for ink-jet recording for reducing bleeding between a black (Bk) ink and a yellow (Y) ink and for reducing color unevenness in a portion formed by color mixing of color inks. The water-based ink set for ink-jet recording includes at least a Bk ink, a Y ink, a magenta (M) ink and a cyan (C) ink. In this configuration, the following relationships are satisfied: sigma1000Bk>=35 mN/m; (1) |sigma30Y-sigma30Bk| sigma30M>=30 mN/m, sigma30C>=30 mN/m; (3) sigma30Y>sigma30M, sigma30Y>sigma30C; and (4) sigma30Y+sigma30M<=93 mN/m, sigma30Y+sigma30C wherein sigma30Bk, sigma30Y, sigma30M and sigma30C are dynamic surface tensions of the Bk ink, the Y ink, the M ink and the C ink, respectively, at a lifetime of 30 ms as measured by a maximum bubble pressure method at a measurement temperature of 25° C., and sigma1000Bk is a dynamic surface tension of the black ink at a lifetime of 1,000 ms as measured by the maximum bubble pressure method at a measurement temperature of 25° C.
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