| 摘要 |
Color ink sets for use in printer systems are provided and formulated to provide improved plain paper and special media performance while maintaining good printing characteristics. The inks and ink sets of the present invention exhibit excellent color performance and lightfastness across a range of media, robust K/Y bleed resistance on plain paper at fast print speeds, as well as excellent printability and reliability. A specific dye set for formulating yellow, magenta, and cyan inks comprises a mixture of acid yellow 23 (AY23) and direct yellow 132 (DY132), a mixture of a cyan dye compound having the formula: <paragraph lvl="0"><in-line-formula>-(SO3H)2.7 </in-line-formula><paragraph lvl="0"><in-line-formula>CuPc-(SO2NH2)0.5 </in-line-formula><paragraph lvl="0"><in-line-formula>-(SO2NH(C2H4OH)0.8 </in-line-formula>wherein Pc represents a phthalocyanine nucleus and acid blue 9; and a magenta dye compound having formula: wherein Q is a cation.
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