Oce-technologies B.v.

Oce-technologeis B.v.

Erik Kelderman

Roelof Hendrik Everhardus

Marcus Petrus Leonardus Huinck

Nicolina Margriet Kortenhoeven

Richard Hendrikus Gerrit Brinkhuis

Guido Gerardus Willems

Clemens T Weijkamp

Ronald Groothuijse

Danny Hendrik Maria Hendricks

Rudolf Antonius Maria Venderbosch

Albin Bernhard Werner Haas

Frederik Leonardus Everardus Marie Suilen

A meltable ink composition, which is solid at room temperature and liquid at elevated temperature, which ink composition is suitable for use in an inkjet printer, the ink composition being provided with a resin which contains a compound which is the reaction product of a di-alkanolamine and a monofunctional aromatic acid and optionally a difunctional acid.

Meltable ink composition

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.

Ink composition for a meltable ink and a method of printing a substrate with such an ink composition

An ink composition for a meltable ink usable in a printing apparatus in which ink droplets are ejected from ink ducts, the ink composition containing an amorphously solidifying monomer compound, which compound shows a crystallinity of less than 1% when a melt of the compound is cooled at a rate of 5&deg; C./min to past its solidification path and is then heated at a rate of 20&deg; C./min to above its melting temperature. The monomer compound can be used in a binder for the ink composition. When inks of this kind are transferred to a receiving material, it results in greater stability in the printed layers, with respect to gum, scratch, fold resistance and transparency.

Ink composition for a meltable ink

An ink composition for a meltable ink, usable in printing devices in which ink droplets are ejected from ducts, which composition contains a meltable base material, wherein the ink composition also contains an amorphously setting monomer compound and an amorphous polymer or oligomer binder and the base material is a crystalline-setting monomer compound. The flow and setting properties and the stiffness of the ink is adjusted by the choice and relative proportion of the constituents.

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Utrecht, Netherlands

Erik Kelderman