Process for manufacturing a glass substrate comprising printed enamel patterns
US9475726B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jul 16, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/72
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for manufacturing a one-way vision glass pane, the process including: a) depositing a layer of a compound comprising a mineral pigment over an area of the pane, the compound being free of glass frit; b) depositing a layer of an enamel compound including a glass frit and a mineral pigment of a different color to the pigment of a), by screen printing, in the shape of the one or more desired patterns; c) heating the coated pane to a temperature high enough to bake the enamel; and d) removing pigments that have not been fixed by the enamel, wherein the particles of the pigments and the particles of the glass frits are of similar size, and the thickness of the layer of the deposited enamel compound is larger than the thickness of the pigment layer deposited in a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.