Patent ID: 8262791
Filing Date: 2012-09-11
Classification: B82Y,C09B,C09D

Abstract:
1. Coloring particles comprising: a dye and a water-insoluble low-molecular-weight dispersant, wherein the average particle size of the coloring particles is 10 nm or more and 80 nm or less; the dispersant is selected from the group consisting of lauric acid, oleic acid, linoleic acid, toluic acid, cinnamic acid, and palmitic acid; the solubility parameter of the dye in water with a pH of 6.0 to 10.0 is 9.20 or more, the solubility parameter being represented by formula (1) below; and the content of the dye and the content of the water-insoluble low-molecular-weight dispersant satisfy a relationship of formula (2) below on a mass basis