Pigmentary Grade Dispersions

Pigmentary grade Titanium Dioxides and Iron Oxides (red, yellow & black) are widely used for color cosmetics and have primary particle sizes greater than 0.2 microns. Pigmentary grade pigments also tend to aggregate in formulas. Color strength, gloss and opacity are related to the particle size of the aggregates. Theoretically, the color intensity is highest (or most opacity) is obtained when the dispersion particle size (in formulas) is closest to their primary particle size. Organic lake dispersions are also available.