Patent ID: 7091261

Claim:
An aqueous ink for ink-jet recording comprising water and a resin as an emulsion, wherein the resin is colored with a pyridone azo compound represented by the formula (2); wherein each of R 7 to R 11 independently, represents a hydrogen atom, a halogen atom, an unsubstituted or substituted alkyl group, an aralkyl group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aryloxy group, a hydroxyl group, —NR 14 R 15 in which each of R 14 and R 15 independently, represents a hydrogen atom, an unsubstituted or substituted alkyl group, or an aralkyl group, —COX 1 in which X 1 represents an unsubstituted or substituted alkoxy group, an unsubstituted or substituted aryloxy group, or —NR 16 R 17 in which each of R 16 and R 17 independently, represents a hydrogen atom, an unsubstituted or substituted alkyl group, an aralkyl group, or an unsubstituted or substituted aryl group, —COO(CH 2 ) n —COX 2 , —OCOX 3 , or —NHCOX 4 , in which X 2 to X 4 represents an unsubstituted or substituted alkyl group, an aralkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted alkoxy group, or an unsubstituted or substituted aryloxy group, and n is an integer of 1 to 3, provided that at least one of R 7 to R 9 is —CONR 16 R 17 having 17 or more carbon atoms, R 12 represents a linear or branched alkyl group having 4 or more carbon atoms, R 13 represents a linear or branched alkyl group having 8 or more carbon atoms.