|Navy blue double wall ceramic mug cup drinkware|
The degree of change in hair color and tone ceramic pigment is very complex. The main factors that affect hair color has a purity of toner itself, various additives such as pigments flux, composition and structure as the mineralizing agent, the pigment firing flame, temperature, firing time, the glaze composition, the forming method of operation etc., are all influential ceramic pigment coloring. For example, pure cobalt oxide color is black, in the heat and AI2O3 effect was pure azure sea (CoO, A1203) (Co2 + in four coordination number) and MgO, Si02 effect was blue, and SiO2 was alone cyanosis cyan (2CoO, SiO2) (Co2 + in the coordination number six, the Pan-purple) and ZnO role in green, and Mg, SnO, the role of yellow-green, and Zn2TiO4 effect was green, and purple role MgO, and Fe2O3, Cr2O3, MgO role was black. See, for a certain kind of coloring materials to add different additives, which change coloration is complicated. Also CoO, if the glaze contains higher CaO, fired in an oxidizing flame, CoO was dark blue flame burning in a strong reduction of the purple-blue.