Patent ID: 7192475

Claim:
An aqueous ink comprising at least a first dye and a second dye each having at least one ionic hydrophilic group in a molecule thereof, wherein at least the first dye includes an azo dye represented by formula (1): wherein A and B each independently represents a substituted or unsubstituted monovalent aromatic group; or a substituted or unsubstituted monovalent heterocyclic group; R 1 represents a substituted phenyl group; or a substituted or unsubstituted naphthyl group; or a substituted or unsubstituted heterocyclic group; and X represents —CR 2 ═ or a nitrogen atom, and when X represents —CR 2 ═, R 2 represents a hydrogen atom or a substituent, and wherein the second dye is a dye in which a λmax is present at from 500 to 700 nm and in an absorption spectrum of a dilute solution regulated so as to have an absorbance of 1.0, a half band width is 100 nm.