Patent ID: 9605170
Date: 2017-03-28
CPC Classifications: C09D

Claim:
1. An aqueous ink set comprising: a combination of a first ink including no coloring material and a second ink including a coloring material, wherein the first ink includes a resin particle and a water-soluble resin, wherein the second ink includes the coloring material, a water-soluble acrylic resin, and a water-soluble urethane resin, the coloring material being a carbon black having a BET specific surface area of 50 m wherein, in the second ink, a mass ratio of a content A (% by mass) of the water-soluble acrylic resin relative to a content P (% by mass) of the carbon black is 0.30 times or more to 2.00 times or less, and wherein a mass ratio of a content U (% by mass) of the water-soluble urethane resin in the second ink relative to a content P (% by mass) of the carbon black is 0.10 times or more to 0.60 times or less.