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 cyan dye compound having the formula:
-(SO3H)2.7
CuPc -(SO2NH2)0.5
-(SO2NH(C2H4OH)0.8
wherein Pc represents a phthalocyanine nucleus; and a magenta dye compound having formula:
wherein Q is a cation.
本发明提供了用于打印机系统的彩色油墨组,其配方可改善普通纸和特殊介质的性能,同时保持良好的打印特性。本发明的油墨和油墨组在各种介质上都表现出优异的色彩性能和耐光性,在普通纸上以较快的打印速度打印时具有很强的抗 K/Y 渗色性,以及优异的可打印性和可靠性。用于配制黄色、品红色和青色油墨的特定
染料组包括
酸性黄 23 (AY23) 和直接黄 132 (DY132)的混合物,直接黄 132 是一种青色
染料化合物,具有以下式子:
-(SO3H)2.7
CuPc -(SO2NH2)0.5
-(SO2NH(C2H4OH)0.8
其中 Pc 代表
酞菁核;以及品红色
染料化合物,其式为
其中 Q 是阳离子。