Patent ID: 8114208

Claim:
An ink jet ink comprising: a compound represented by the following general formula (I); and organic solvents, wherein when the organic solvents are classified by M OH /M w , indicating a proportion of the total molecular weight of hydroxyl groups to the molecular weight of the organic solvent, into an organic solvent A whose M OH /M W is 0 or more and less than 0.2, an organic solvent B whose M OH /M W is 0.2 or more and less than 0.4, and an organic solvent C whose M OH /M W is 0.4 or more and less than 1.0, the ink comprises at least one organic solvent A, at least one organic solvent B, and at least one organic solvent C, and wherein the at least one organic solvent A comprises a nitrogen-containing organic solvent in an amount of 80.0% by mass or more of the at least one organic solvent A, wherein R 1 , R 2 , Y 1 , Y 2 are, independently of one another, a monovalent group, X 1 and X 2 are, independently of each other, an electron-withdrawing group having a Hammett's σp value of 0.20 or more, Z 1 and Z 2 are, independently of each other, a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and M is a hydrogen atom, an alkali metal, an ammonium or an organic ammonium.