Influence of particle size of organic pigment manufacturers in application

Pigment manufacturers in various application fields of pigments, such as printing ink, paint, and plastic coloring, need to grind the particle size of the pigment to reduce the particle size of the pigment to less than a few microns, and the particle size distribution should be relatively concentrated, and there are particles with excessive particle size. The resulting dispersion has good dispersion stability over a longer period of time.

The aggregate size of the pigment, the binding method (point, line, surface, etc.), and the shape of the particles (spherical, needle-like, flake-like and irregular shape, etc.), affect the following application properties of the pigment to a considerable extent: 1. Coloring Intensity or tinting strength (Tinctorial Strength); 2. Hue or hue (Hue, Shade); 3. Gloss (Gloss) and surface copper light phenomenon; 4. Hiding Power, Transparency (Hiding Power, Transparency); 5. Fluidity , Flow, Rheology and oil absorption; 6. Lightfastness and Weatherfastness; 7. Solvent and Migration Fastness; 8. Dispersibility; 9. Crystal Form and Stability.