Method and apparatus for thermal transfer color printing

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/325 (2006.01) B41J 2/42 (2006.01) B41J 2/525 (2006.01) B41J 11/66 (2006.01) B41M 5/34 (2006.01)

Patent

CA 2218943

A process for color overprinting onto a thermally printable receiving surface (20) includes using a thermal printer (10) and transfer foils (24) to print a first layer of color printing medium (42) onto a portion of the receiving surface, and then using the thermal printer to print at least a second layer of translucent colored printing medium (44) onto the receiving surface on top of the first layer. An index of overprint colors (46) can be created by the process for use in matching colors printable by the overprinting process to the colors on an original graphic. The index may be used manually or in a computerized printing process to determine the number of transfer foils required to reproduce an original graphic, and their order of use.

Processus pour la surimpression de couleurs sur une surface de réception thermiquement imprimable (20) comprenant l'utilisation d'une thermo-imprimante (10) et de feuilles métallliques de transfert (24) pour imprimer une première couche d'un support d'impression en couleurs (42) sur une partie de la surface de réception, puis l'utilisation de la thermo-imprimante pour imprimer au moins une deuxième couche d'un support d'impression de couleurs translucides (44) sur la surface de réception par-dessus la première couche. Le processus peut créer un index des couleurs de surimpression (46) pour faire correspondre les couleurs imprimables par le processus aux couleurs du document graphique d'origine. L'index peut être utilisé manuellement ou dans un processus d'impression informatisé pour déterminer le nombre de feuilles de transfert nécessaires pour reproduire un document d'origine, et leur ordre d'emploi.

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