Glass panels partially printed with ceramic ink layers in...

B - Operations – Transporting – 41 – M

Patent

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Details

B41M 1/34 (2006.01) B32B 17/10 (2006.01) B44C 1/17 (2006.01) B44C 3/00 (2006.01)

Patent

CA 2500406

The present application relates to a method of making a glass panel that is partially printed with a plurality of layers in the form of a print pattern which subdivides the panel into a plurality of discrete printed areas and/or a plurality of discrete unprinted areas, said layers being in substantially exact registration. The substantially exact registration is achieved by the application to a sheet of glass (10) of a plurality of superimposed layers (14, 20), one of the layers containing a ceramic ink comprising glass frit, in a print pattern. The sheet of glass and plurality of layers applied thereto are subjected to a heat treatment process which causes the glass frit to fuse to the glass and bind at least one layer of ink within the print pattern. Any ink not within the print pattern is burnt off and/or vaporised during the heat treatment process and/or removed by a subsequent finishing process, to leave the desired layers in substantially exact registration within the print pattern.

L'invention concerne un procédé de fabrication de panneau en verre partiellement imprimé au moyen d'une pluralité de couches se présentant sous la forme d'un motif d'impression qui subdivise le panneau en une pluralité de zones imprimées discrètes et/ou une pluralité de zones non imprimées discrètes. Lesdites couches coïncident de manière sensiblement exacte. Cette coïncidence sensiblement exacte est réalisée par application d'une pluralité de couches superposées sur une plaque de verre, une des couches contenant une encre céramique comprenant de la fritte de verre, dans un motif d'impression. La plaque de verre et la pluralité de couches appliquées sur celle-ci sont soumises à un processus de traitement thermique qui provoque la fusion de la fritte de verre avec le verre et la liaison d'au moins une couche d'encre à l'intérieur du motif d'impression. Chaque encre à l'extérieur du motif d'impression est brûlée et/ou vaporisée lors du processus de traitement thermique et/ou éliminée par un processus de finition ultérieur, de façon à faire coïncider, de manière sensiblement exacte, les couches souhaitées à l'intérieur du motif d'impression.

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