Printing machine and method for printing a substrate

Details Printing machine and method for printing a substrate Printing machine and method for printing a substrate

B - Operations, Transporting

41

J

B41J 3/54 (2006.01) B41J 2/44 (2006.01) B41M 5/382 (2006.01)

Patent

CA 2747321

The invention relates to a method for printing a substrate (7) in a printing machine, in which ink is transferred from a flexible carrier (3) to the substrate (7) in accordance with a predefined pattern by energy being introduced into the ink through the flexible carrier (3) by a device for the introduction of energy, some of the ink evaporating in the area of action of the energy and, as a result, a drop of ink (67) being thrown onto the substrate (7) to be printed, this step being repeated at least once, ink being transferred at least partly to the substrate (7) at the same positions in order to intensify the pattern produced. The substrate is transported through the printing machine (1) during the printing and, after the transfer of ink in step (a), the device for the introduction of energy is controlled in such a way that, during the repetition in step (b), the ink is transferred at the same position again as in step (a). The invention further relates to a printing machine for implementing the method.

L'invention concerne un procédé d'impression d'un substrat (7) dans une machine d'impression, procédé caractérisé en ce que l'encre est transférée d'un support souple (3) sur le substrat (7), en correspondance avec un modèle prédéterminé, cependant que de l'énergie provenant d'un dispositif d'apport d'énergie est amenée dans l'encre, par le support souple (3), une partie de l'encre s'évapore dans la zone d'action de l'énergie, de sorte qu'une goutte d'encre (67) est projetée sur le substrat à imprimer, en ce que cette étape est répétée au moins une fois, et en ce qu'en vue de renforcer le modèle produit, l'encre est transférée, au moins partiellement aux mêmes positions, sur le substrat (7). Le substrat est transporté, pendant l'impression, à travers la machine d'impression (1), et le dispositif d'apport d'énergie est commandé, après transport de l'encre à l'étape (a), de façon que l'encre lors de la répétition à l'étape (b) soit transférée dans la même position qu'à l'étape (a). L'invention concerne en outre une machine d'impression pour la mise en oeuvre de ce procédé.

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