Printing inks and particularly fluorescent colored inks which provide outstanding color strength and dot resolution with planographic and letterpress printing processes are described. The inks comprise an intimate dispersion of colored resin particles in a vehicle containing specified amounts of certain alkyd resins, esters of modified rosin, carboxylated hydrocarbon resins and ink oil.
John G. Mone - Crockett CA Thomas C. Molloy - San Pablo CA
Assignee:
Magruder Color Company - Elizabeth NJ
International Classification:
C09K 1106
US Classification:
25230126
Abstract:
A composition containing a photochromic material and a fluorescent pigment provides a duality of color in products where the composition is used as the coloring agent. Under ordinary lighting conditions, the composition will provide a brilliant, glowing color and under excitation illumination such a ultraviolet radiation, a different brilliant glowing color results.