Oce-technologies B.v.

Oce-technologeis B.v.

Nicolina Margriet Kortenhoeven

Erik Kelderman

Guido Gerardus Willems

Roelof Hendrik Everhardus

Marcus Petrus Leonardus Huinck

Albin Bernhard Werner Haas

Frederik Leonardus Everardus Marie Suilen

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

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Venlo, Netherlands

Nicolina Margriet Kortenhoeven