| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water-based ink set for inkjet recording simultaneously solving each problem of the restorability of the ink introduction to inkjet heads, the penetration, the dryingness of paper surface, the bleeding between inks and the color unevenness. <P>SOLUTION: In the water-based ink set for inkjet recording consisting at least of a black ink, a yellow ink, a magenta ink and a cyan ink, each constituent ink is incorporated with a polyoxyethylene alkyl ether sulfonate as a surfactant. Further, into the black ink a coloring agent and dipropylene glycol propyl ether are incorporated, and into the color ink a coloring agent and triethylene glycol butyl ether are incorporated. Further, the dynamic surface tension of the black ink at the measuring temperature of 25°C by the maximum bubble pressure method and the absolute value of the difference of the dynamic surface tensions of optional two inks of the constituent inks are made to be specific values or less. <P>COPYRIGHT: (C)2007,JPO&INPIT |
