Patent ID: 8070869

Claim:
An inkjet recording yellow ink comprising at least one water-soluble azo dye selected from the group consisting of a compound represented by formula (Y) described below and a salt thereof, and at least one glycol ether represented by formula (A) described below, wherein the at least one glycol ether is contained in an amount of from 40% by mass to 100% by mass relative to a total amount of water-soluble organic solvent in the ink: wherein in formula (Y), G represents a heterocyclic group; R, X, Y, Z, and Q each independently represent a monovalent, divalent, or trivalent group; n represents an integer of 1 to 3; when n is 1, R, X, Y, Z, Q and G each independently represent a monovalent group; when n is 2, R, X, Y, Z, Q and G each independently represent a monovalent or divalent group, and at least one of them represents a divalent substituent; and when n is 3, R, X, Y, Z, Q and G each independently represent a monovalent, divalent, or trivalent group, and at least two of them represent a divalent substituent, or at least one of them represents a trivalent substituent; wherein in formula (A), A represents an ethyleneoxy group or a propyleneoxy group; when A represents an ethyleneoxy group, R represents a straight chain alkyl group having 1 to 4 carbon atoms; when A represents a propyleneoxy group, R represents a straight chain alkyl group having 1 to 2 carbon atoms; and n represents 1 or 2.