Patent ID: 6015455
Filing Date: 2000-01-18
Classification: C09D

Abstract:
An ink jet recording ink comprising water, a water-soluble organic solvent, at least one dye having at least one carboxyl group in the form of a free acid, a substituted aromatic compound represented by general formula (I) and at least one compound selected from alkali metal hydroxides, wherein the pH value thereof is from 8 to 12: ##STR111## wherein, R.sup.1 is a functional group selected from the group consisting of a carboxyl group, a sulfonic group, a salt of a carboxyl group, and a salt of a sulfonic group, R.sup.2 is a functional group selected from the group consisting of hydrogen, a hydroxyl group, an amino group, a nitro group, a methyl group, an ethyl group, a carboxyl group, a sulfonic group, a salt of a carboxyl group, and a salt of a sulfonic group, and R.sup.3 is a functional group selected from the group consisting of a hydrogen, a hydroxyl group, an amino group, a nitro group, a methyl group, and an ethyl group.