Patent ID: 6341856
Filing Date: 2002-01-29
Classification: B41J,B41M,C09D,D06P

Abstract:
A method of digital printing, comprising the steps of:a. preparing a liquid ink which is liquid at ambient temperature, said liquid ink comprising a colorant, at least one compound having at least one functional group which reacts with active hydrogen, at least one compound having at least one functional group containing active hydrogen and at least one blocking agent which, during storage and printing of said liquid ink, prevents a reaction between said at least one compound having at least one functional group which reacts with active hydrogen, and said at least one compound having at least one functional group containing active hydrogen; b. supplying a digital printer which uses liquid ink with said liquid ink; c. digitally printing said liquid ink onto a substrate to form an image on said substrate; and d. subsequently removing said blocking agent and reacting said at least one compound having at least one functional group which reacts with active hydrogen with said at least one compound having at least one functional group containing active hydrogen to bond said image to said substrate.