Process for preparing multi-color dispersions and multi-color dispersions made thereof

摘要

A process for making multi-color dispersion, a dispersion made thereof and a coating composition comprising the dispersion are provided. The process comprises: contacting a first colorant, a first aqueous dispersion of polymer particles, a first polysaccharide and a second polysaccharide to make a first colorant dispersion; contacting the first colorant dispersion with a composition to obtain a dispersion of protected first colorant particles; obtaining a dispersion of protected second colorant particles by the same way; mixing the two dispersions to obtain a multi-color dispersion.