Patent ID: 7267715
Filing Date: 2007-09-11
Classification: C09D

Abstract:
1. An ink set comprising inks, each of the inks being an ink obtained by dissolving at least one dye of an azo dye having a heterocyclic group or a phthalocyanine dye in an aqueous medium, wherein the dyes contained in said ink have a solubility of 15 g or more in 100 g of water at 25° C. under atmospheric pressure, and said azo dye or phthalocyanine dye is represented by the following formula (1), (2), (3) or (4): Formula (1): wherein A 11 and B 11 each independently represents a heterocyclic group which may be substituted; Formula (2): wherein X each Z R Y a M represents a hydrogen atom, a metal atom or an oxide, hydroxide or halide thereof; Formula (3): wherein A B R R Formula (4): wherein A