WATER-BASED MAGENTA INK COMPOSITION AND METHOD OF INK-JET RECORDING

摘要

A water-based magenta ink composition which has satisfactory storage stability, has a hue and brightness suitable for ink-jet recording, and gives prints having high fastness to light and water; and a magenta dye suitable therefor. The water-based magenta ink composition is characterized by containing as a colorant a disulfonic acid of the compound represented by formula (2) or a salt of the acid. A method of ink-jet recording with the composition is provided. The magenta dye is reduced in the contents of monosulfonic acids and inorganic metal salts, and is suitable for use in the ink composition.