INKJET RECORDING INK SET, INK CARTRIDGE, AND INKJET RECORDING APPARATUS

摘要

An inkjet recording ink set containing at least a black pigment ink and a color pigment ink which has a color selected from one or more colors, wherein the black pigment ink contains a first anionic self-emulsifying ether polyurethane resin having an acid value of 65 mgKOH/g to 85 mgKOH/g, and the at least one color pigment ink of every color contains a second anionic self-emulsifying ether polyurethane resin having an acid value 10 mgKOH/g to 40 mgKOH/g lower than those of the first anionic self-emulsifying ether polyurethane resin contained in the black pigment ink.