| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inkjet recording ink set, containing water-insoluble color materials such as pigments, satisfying characteristics as an ink to be used for inkjet recording, being composed of a plurality of inks, and being capable of coping with high-speed fixability and a higher quality picture. <P>SOLUTION: The inkjet recording ink set comprises a combination of a plurality of inks containing an aqueous medium, a water-insoluble color material, and a dispersion resin for dispersion of the color material in the aqueous medium, wherein the ink set contains a first ink and a second ink having the same hue, the first ink contains a polyvalent metal salt and a copolymer used herein containing a nonionic hydrophilic part as the dispersion resin, and the second ink aggregates by reacting with the first ink. <P>COPYRIGHT: (C)2011,JPO&INPIT |
