Process for enamelling a glass substrate
AssigneeSaint-Gobain Vitrage
InventorsGerard Daude, Cathy Dievart, Andre Beyrle
Life of this patent
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Abstract
The invention concerns a procedure for the fabrication of an enamel layer on a glass sheet. In accordance with the process, at least one portion of the drying operation is effected by microwaves, the enamel layer advantageously containing a microwave doping agent.
Claims20
In a process for manufacturing an enamel layer on at least one portion of a glass substrate in which an enamel compound is deposited on the substrate so as to form a layer, the layer thus formed is dried, and the enameled layer is subsequently melted, the improvement wherein at least one portion of the drying operation is carried out using microwaves,
- and wherein the enamel contains a microwave doping agent selected from the group consisting of PbS, carbon black, graphite, copper sulfide, silicon carbide and mixtures thereof.
In a process for manufacturing an enamel layer on at least one portion of a glass substrate in which an enamel compound is deposited on the substrate so as to form a layer, the layer thus formed is dried, and the enamelled layer is subsequently melted, the improvement wherein at least one portion of the drying operation is carried out using microwaves, the enamel compound containing graphite as microwave doping agent.
In a process for manufacturing an enamel layer on at least one portion of a glass substrate in which an enamel compound is deposited on the substrate so as to form a layer, the layer thus formed is dried, and the enameled layer is subsequently melted, the improvement wherein at least one portion of the drying operation is carried out using microwaves,
- and wherein the enamel contains a microwave doping agent selected from the group consisting of PbS, carbon black, copper sulfide, silicon carbide and mixtures thereof.
In a process for manufacturing an enamel layer on at least one portion of a glass substrate in which an enamel compound is deposited on the substrate so as to form a layer, the layer thus formed is dried, and the enamel layer is subsequently melted, the improvement wherein at least one portion of the drying operation is carried out using microwaves and wherein the microwave drying is combined with blown hot-air drying.
Dependencies are inferred from the claim text.