Patent 11021620 was granted and assigned to Sun Chemical on June, 2021 by the United States Patent and Trademark Office.
The present invention provides digital printing inks comprising one or more acrylamides. Particularly preferred are inks containing diacetone acrylamide. The inks of the invention show good cure speed, blocking resistance, tack free cure, stability and resistance to blocking, and adhesion to the substrate. The inks of the invention are useful for replacing the currently used inks containing odiferous and toxic components.