Patent ID: 7524048

Claim:
A method of digital printing, comprising the steps of: a. preparing an ink that is solid at ambient temperature, said ink comprising a compound comprising a functional group which reacts with active hydrogen, a compound comprising a functional group comprising active hydrogen, and a blocking agent, wherein said blocking agent, during storage and printing of said ink, materially inhibits a reaction between said compound comprising a functional group which reacts with active hydrogen and said compound comprising a functional group comprising active hydrogen; b. supplying a digital printer which uses solid ink with said ink; c. applying heat to said ink to melt said ink, wherein said ink melts at a temperature that does not materially disable said blocking agent from materially inhibiting a reaction between said compound comprising a functional group which reacts with active hydrogen and said compound comprising a functional group comprising active hydrogen; d. melting said ink and printing said ink onto a substrate to form an image on said substrate; and e. subsequently disabling said blocking agent and reacting said compound comprising a functional group which reacts with active hydrogen with said compound comprising a functional group comprising active hydrogen to bond said image to said substrate.