| abstract |
PROBLEM TO BE SOLVED: To provide a novel method which can be obtained by a very simple economical and environmentally friendly method without a dispersing step in a bead mill, and can be easily mixed with water-based inks and paint systems. To provide unique pigment formulations. A stirred pigment formulation in particulate form, comprising 85 to 99.5% by weight of a pigment and 0.5 to 15% by weight of an additive comprising a vinylpyrrolidone polymer or copolymer, wherein the copolymer comprises , A pigment formulation which is not a copolymer of ethylenically unsaturated sulfonic acid and N-vinyl-pyrrolidone. |