TYPOGRAPHIC PAINT OR COAT PAINT VARNISH WITH RENEWABLE BINDING COMPONENT

摘要

1. Printing ink, in particular ink for intaglio printing or ink for flexographic printing, containing nitrated lignin as at least one binder component. The ink according to claim 1, wherein the nitrated lignin is obtained by nitration of an alkaline lignin with nitric acid at a temperature not exceeding 28 ° C, in the presence of a solvent that is immiscible with water and inert to nitric acid. The printing ink of claim 2, wherein the alkaline lignin is obtained by subjecting the lignin to a chemothermomechanical treatment comprising mechanical shear at a maximum temperature of from about 100 to 220 ° C and a pressure of from about 0.5 to 10 atmospheres in the presence of an additive such as glycol, which lowers softening temperature of lignin. 4. Printing ink according to any one of paragraphs. 1-3, which contains at least one additional binder component selected from the group consisting of polyurethane resins, ketone resins or polyamide resins. 5. Printing ink according to any one of paragraphs. 1-3, which further comprises a dye, preferably a pigment. 6. The ink according to claim 4, which further comprises a dye, preferably a pigment. Printing ink according to any one of paragraphs. 1-3, which further comprises a solvent and optionally additives. 8. The ink according to claim 4, which further comprises a solvent and optionally additives. The ink according to claim 5, which further comprises a solvent and optionally additives. The ink according to claim 6, which further comprises a solvent and optionally additives. Impression coating topcoat containing nitrated lignin as at least one