The filter-cake of the calcined and washed pigment is re-dried, then milled using a pin or hammer mill, to give the final fine powder. Although relatively soft, as with most pigments, excessive shear during this operation can be detrimental. The choice and configuration of equipment is important. The pigment is now ready for blending with other shades as required to meet specific customer needs.
Final Drying and Milling
30 августа, 2015 Pokraskin