Aqueous ink

A water-based ink comprising an azomethine metal complex pigment (A), an aromatic group-containing polymer (B), an organic solvent (D) and water, in which:

• a mass ratio of the azomethine metal complex pigment (A) to the aromatic group-containing polymer (B) [(A)/(B)] is not less than 1.4 and not more than 3.2;
• and
• the aromatic group-containing polymer (B) is a crosslinked polymer obtained by crosslinking an aromatic group-containing polymer (b) having an acid value of not less than 80 mgKOH/g and not more than 400 mgKOH/g with a water-insoluble polyfunctional epoxy compound (c),
• the azomethine metal complex pigment (A) is a metal complex pigment comprising an azomethine compound as a ligand and a divalent or trivalent ion of a metal selected from the group consisting of Fe, Co, Ni and Zn,
• a boiling point of the organic solvent (D) is not lower than 90° C. and not higher than 250° C., and a content of the organic solvent (D) in the water-based ink is not less than 20% by mass and not more than 70% by mass.