Patent ID: 10618310

Abstract:
An ink jet recording ink set of this invention is an ink jet recording ink set containing a dye ink and a pigment ink, in which the dye ink contains a dye in a proportion of 1.4% by mass or more and 5.0% by mass or less based on the total mass of the ink, the pigment ink contains a pigment in a proportion of 4.0% by mass or more and 8.0% by mass or less based on the total mass of the ink, and, when the volume average particle diameter of the pigment ink is defined as Φ1 and the volume average particle diameter of a mixed liquid in which the dye ink and the pigment ink are mixed in equal amounts in terms of the mass ratio is defined as Φ2, the following expression (1) is satisfied, 1.00≤Φ2/Φ1≤1.40  (1).