Stir-in organic pigments

摘要

Disclosed is a process for coloring high-molecular-weight organic materials which comprises uniformly dispersing an effective pigmenting amount of a stir-in pigment in the high-molecular-weight organic material; wherein the stir-in pigment is an organic pigment crude consisting essentially of non-platelet-shaped particles having an average particle size of from 0.5 to 25 mu m and/or a pigment composition consisting essentially of an organic pigment having an average particle size of from 0.01 to 25 mu m and inorganic filler pigment.