... dispersion, Super durability ,excellent whiteness ,high gloss and tinting strength TITANIUM DIOXIDE R-919ApplicationHigh-grade plastic profile, plastic masterbatch and other ... system (L*) and Hue (b*): Grind the titanium dioxide with grinding mill, to make a film with thickness of 100µm. Calibrate ... the surface of the film and indicate with CIE L*, a*, b*.2, Test for Dispersion under high-speed mixing ...