Patent ID: 6779881
Filing Date: 2004-08-24
Classification: C09D

Abstract:
A magenta ink,comprising at least water, a water-soluble organic solvent, a first dye, and a second dye, the first dye having a structure expressed by the following General Formula I, the second dye being one or more types of dye selected from the group consisting of C.I. Acid Violet 9 and 30 and C.I. Acid red 50, and 289, and the weight ratio of first dye to second dye being 5:1 to 1:5. where M is H, Li, Na, K, ammonium, or an organic amine; R1 is H, Cl, or where X is an anilino group substituted with at least one SO3M; Y is OH, Cl, or a morpholino group R2 is H, CH3, Cl, or SO3M.