Pigment dispersion processing, optimization for higher pigmentation
One way to make a UV curable ink is to mix a pigment dispersion with monomers, oligomers, photoinitiators and additives. Creating a pigment dispersion is in many cases the first processing step of making a UV curable ink and is of large importance. To process pigment dispersions of Pigment red 2 and Pigment red 122 a premixing step with a dissolver is used followed by a grinding step employing a t