Method for improving the durability of an ink printed on a substrate and substrate formed from such a method

Abstract

The present disclosure is drawn to a method for improving the durability of an ink printed on a substrate. In an aspect, the method comprises: (a) providing a substrate having an ink printed thereon; (b) applying an organosilane to the ink to form a coating over the ink, wherein the organosilane is of the formula X—SiR1R2R3, wherein R1, R2 and R3 are all hydrolysable groups, and X comprises an a nucleophilic nitrogen-containing group which is covalently bonded to Si in X—SiR1R2R3 via a non-hydrolysable linker group; and (c) curing the organosilane. The present disclosure further describes a substrate having an ink printed thereon, wherein the ink has a coating thereon formed by applying an organosilane to the ink and curing the organosilane.

Dependencies are inferred from the claim text.