Patent ID: 8398761
Filing Date: 2013-03-19
Classification: C09D

Abstract:
1. An inkjet recording ink composition comprising: a water-soluble dye; a water-soluble organic solvent; and water in an amount of from 20% by mass to 40% by mass with respect to a total mass of the ink composition, wherein the water-soluble organic solvent comprises: a first water-soluble organic solvent comprising a volatile water-soluble organic solvent having a refractive index in a range of from 1.36 to 1.54, a second water-soluble organic solvent that is a nonvolatile water-soluble organic solvent comprising at least one selected from the group consisting of ethylene glycol diethyl ether, diethylene glycol dimethyl ether, diethylene glycol ethyl methyl ether, propylene glycol dimethyl ether and propylene glycol diethyl ether, and wherein a content of the second water-soluble organic solvent is in a range of from 20% by mass to 60% by mass with respect to the total mass of the ink composition.