Printing layers of ceramic ink in substantially exact...

Details Printing layers of ceramic ink in substantially exact... Printing layers of ceramic ink in substantially exact...

B - Operations, Transporting

41

M

B41M 1/12 (2006.01) B41M 1/18 (2006.01) B41M 1/34 (2006.01)

Patent

CA 2748657

A method of partially imaging a substrate, for example glass, with a print pattern comprising layers of ceramic ink in substantially exact registration. The method relies on a mask ink layer defining the print pattern and differential thermal expulsion of ceramic ink medium during a heat fusing process between the areas outside the print pattern and within the print pattern. This results in pigment and glass frit forming a durable image material adhered to the substrate within the print pattern and non durable material outside the print pattern, enabling its removal outside the print pattern to leave the desired layers of ceramic ink within the print pattern in substantially exact registration.

Linvention concerne un procédé permettant de former une image sur une partie dun substrat, par exemple sur du verre, avec un motif dimpression comprenant des couches dencre céramique ayant un positionnement sensiblement précis. Le motif dimpression est défini par une couche dencre de masquage et un milieu dencre céramique est soumis à une expulsion thermique différentielle lors dun processus de fusion thermique entre les zones se trouvant hors du motif dimpression et à lintérieur du motif dimpression. Ceci permet dobtenir un matériau dimage résistant, formé de pigments et de fritte de verre, adhérant au substrat à lintérieur du motif dimpression et un matériau non résistant hors du motif dimpression, ce qui permet de léliminer aux endroits se trouvant hors du motif dimpression pour laisser les couches dencre céramique souhaitées à lintérieur du motif dimpression avec un positionnement sensiblement précis.

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