Patent ID: 7776144
Filing Date: 2010-08-17
Classification: C09D

Abstract:
1. A yellow ink for inkjet recording, which comprises: an aqueous medium; and at least two dyes, wherein the at least two dyes each independently has: a λmax of from 390 nm to 470 nm; a ratio of I (λmax+70 nm) to I (λmax) of 0.4 or less, wherein 1(λmax+70 nm) represents an absorbance at a wavelength of λmax+70 nm and I(λmax) represents an absorbance at a wavelength of λmax; and an oxidation potential higher than 1.0 V versus SCE, and wherein at least one of the at least two dyes is a dye represented by formula (Y1): wherein A a divalent linking group, provided that when n is 1, L is a hydrogen atom or a monovalent substituent, and A divalent linking group, A wherein, P represents an aryl group that maybe substituted; and Q represents a heterocyclic group that may be substituted, wherein, X and Y each represents an aryl group that may be substituted.