Example 7
6 parts of the hydroxy-containing acrylic resin (R-2) (solids content: 3.3 parts), 35 parts of Paliogen Maroon L3920 (trade name, a perylene red pigment, produced by BASF A.G.), and 60 parts of deionized water were placed in a stirring vessel; and homogeneously mixed, followed by further adding 2-(dimethylamino) ethanol to adjust the pH to 7.5. The obtained mixture was placed in a 225-ml resin bottle; and 130 parts of zirconia beads (size: 1.5 mm) were added thereto, followed by hermetically sealing the bottle. The pigment was dispersed for 120 minutes with a shaking-type paint mixer. After the pigment was dispersed, the zirconia beads were filtered through a 100-mesh metallic gauze and removed, thereby obtaining a red pigment dispersion (P-2) with a solids content of 66%.
