METHOD FOR CONDITIONING ORGANIC PIGMENTS

摘要

PURPOSE: Provided is a process of preparing conditioned organic pigments with one or more acrylic polymer dispersants. CONSTITUTION: The process for preparing conditioned organic pigments comprises (a) milling a mixture comprising: (1) one or more crude organic pigments; (2) at least about 0.1% by weight, relative to the organic pigment, of one or more acrylic copolymer dispersants; and (3) 0 to about 100 parts by weight, relative to the organic pigment, of a milling liquid in which the organic pigment is substantially insoluble; and (b) isolating the milled organic pigment.