EP2316886A1 - Preparing and dispersing surface-modified colour .a pigment selected from the group of pigments comprising at least 50 wt% of C.I. Pigment Violet 23, C.I. Pigment Red 146, C.I. Pigment Red 176, C.I. Pigment Red .. Suitable milling and dispersion apparatuses are a ball mill, a pearl mill, a colloid mill, a high-speed disperser, double rollers, a bead mill, a paint conditioner,.ball mill for pigment violet 23,ball mill for pigment violet 23,US6734231B2 - Easily distributable pigment compositions - Google .Microlen® UA is produced by a wet process with a ball mill wherein PE-wax and dispersing agent have to be added and only a specific range of pigments can be . C.I. Pigment Orange 49, C.I. Pigment Blue 15, C.I. Pigment Blue 60, C.I. Pigment Violet 23, C.I. Pigment Violet 37, C.I. Pigment Violet 19, C.I. Pigment Green 7,.