Patent ID: 8304043

Claim:
An inkjet recording ink and recording media set, comprising: an inkjet recording ink; and a recording medium, wherein the inkjet recording ink comprises at least: water; a water-soluble organic solvent; a water-insoluble vinyl polymer particle containing carbon black, and having an average volume particle diameter of 40 nm to 100 nm; and resin fine particles, wherein the inkjet recording ink has a mass ratio A/B of 1/0.05 to 1/1.2, where A represents an amount of the carbon black contained in the recording ink and B represents an amount of the resin fine particles contained in the recording ink, wherein the recording medium comprises: a substrate; and a coating layer on at least one side of the substrate, and wherein an amount of pure water transferred to the recording medium, as measured with a dynamic scanning absorptometer at 23° C. and 50% RH, at a contact time of 100 ms is 2 ml/m 2 to 35 ml/m 2 while an amount of pure water transferred to the recording medium at a contact time of 400 ms is 3 ml/m 2 to 40 ml/m 2 .