Provided is an ink set comprising a combination of a liquid composition containing a cationic substance, with a yellow ink, a cyan ink and magenta ink, wherein said three inks each contain a watersoluble anionic dye and are capable of affording a chromaticity CIE L*a*b* to a black image presented on a recording medium by using these inks in combination within the range of the numerical expressions;10 ≦ L* ≦ 30,0 ≦ a* ≦ 7, and-10 ≦ b* ≦ 0.
本发明提供了一种墨
水组合,它由含有阳离子物质的液体组合物与黄色墨
水、青色墨
水和品红色墨
水组合而成,其中所述三种墨
水分别含有
水溶性阴离子
染料,通过将这些墨
水组合使用,能够在数字表达式范围内为记录介质上呈现的黑色图像提供色度 CIE L*a*b* ;10 ≦ L* ≦ 30,0 ≦ a* ≦ 7,以及-10 ≦ b* ≦ 0。