Paste Inks

Paste inks maybe made by grinding the dry pigment into the varnish and dispersing the other additives required to modify flow, tack, and film properties.Lithographic and letterpress InksThe different between lithographic and letterpress inks are primarily in their formulations (pigment concentration, choice of pigment and varnish) and not in the method of manufacturing.Screen Printing InksScreen printing inks usually dry by a combiantion of solvent evaporation and oxidation. The inks have a low tack and a thick, nonfluid body so that they can be forces by squeegee through the stencil screen. Screen inks are similar to paste ink that has been greatly reduced with mineral spirits.