Patent ID: 8044116
Filing Date: 2011-10-25
Classification: C09D

Abstract:
1. A pigment dispersion comprising: a C. I. Pigment Yellow 155 (a); a styrene-acrylic acid-based copolymer (b); a basic compound (c); and a wetting agent (d), wherein the wetting agent (d) comprises at least one diol compound (e), the diol compound (e) is selected from the group consisting of dipropylene glycol, 2-ethyl-1,3-hexanediol, and 1,2-hexanediol the mass ratio (e)/(a) between the diol compound (e) and the C. I. Pigment Yellow 155 (a) is within a range from 3/100 to 8/100, and the pigment dispersion is 50 to 80 mass % solid at ordinary temperature.