Patent ID: 6797746
Filing Date: 2004-09-28
Classification: B41M,C09D

Abstract:
An ultraviolet radiation curable organic ink composition for glass substrates, which comprises:(i) an ultraviolet radiation curable ink composition including (a) 80 to 95% by weight of an epoxy-polyurethane ink; and (b) 0.5% to 8% by weight of an additive including a mixture of polyethylenic waxes and polythetrafluorethylenic waxes; (ii) 1 to 8% by weight of a blocked aliphatic polyisocyanate catalyst; and, (iii) an adhesion promoter primer to be independently applied to the glass substrate before the ink composition, whereby the blocked aliphatic polyisocyanate catalyst promotes a polymerization reaction and a crosslinking reaction between the epoxy-polyurethane-based ink and the adhesion promoter, when heated at about 160 to 200Â° C., forming an interpenetration network.