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AssigneeOce-Technologies B.V.
InventorsErik Kelderman, Marcus Petrus Leonardus Huinck, Nicolina Margriet Kortenhoeven, Frederik Leonardus Everardus Marie Suilen, Guido Gerardus Willems, Albin Bernhard Werner Haas
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An ink composition for a meltable ink usable in a printing device in which ink drops are ejected from ink ducts, which comprises agents which reversibly cross-link the ink, the said agents containing a gelling agent. When an ink drop which has been transferred to a substrate passes over into a gel during the cooling process, the consequence is that the viscosity of the melted ink drop increases greatly so that the drops become relatively immobile. In this way the ink drops are prevented from uncontrollably flowing into the paper. As a result, inks of this kind are suitable for use on both porous and smooth substrates. In addition, these inks have been found suitable for use in a printing device in which printed substrates are subjected to thermal after-treatment.
An ink composition for a meltable ink usable in a printing device in which ink drops are ejected from ink ducts, said ink being a solid at room temperature and a fluid at an elevated temperature, said ink composition comprising an agent which reversibly cross-links the fluid, said agent being a gelling agent which contains a compound having a molecular weight of less than 10,000.
A method of printing a substrate, comprising transferring melted ink drops to the substrate, the latter then being subjected to after-treatment, wherein the melted ink drops is an ink composition containing a gelling agent, said gelling agent containing a compound having a molecular weight of less than 10,000.
Dependencies are inferred from the claim text.