| 摘要 |
An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: <IMAGE> +TR <IMAGE> wherein R1 and R2 each represent hydrogen, an alkyl group, an alkoxy group, halogen, a carboxyl group or a sulfonic acid group; R3 and R4 each represent a hydroxyl group, halogen, an alkoxy group, an unsubstituted or substituted amino group; X represents -O-, -CH2-, -C2H4-, -CH=CH-, -S-, -SO2- or -; Ar1 and Ar2 each represent an unsubstituted or substituted phenyl group, an unsubstituted or substituted naphthyl group; M represents hydrogen ion, an alkali metal cation, amine cation or an ammonium ion; and n is an integer of 1, 2 or 3.
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