Abstract: An aqueous dispersion of a pigment for use in a polymerization process to form a pigmented polyamide by addition of the dispersion to the polymer-forming reactants prior to completion of the polymerization is prepared by attrition milling a slurry containing about 70 to 80% by weight of pigment in water in the presence of a dispersing agent to separate agglomerated pigment particles, then with additional milling, mixing the milled slurry with a concentrated aqueous solution of a nylon salt to flocculate the pigment particles and to form a flocculated dispersion containing 25 to 45% pigment.