Process for manufacturing a glass substrate comprising printed enamel patterns
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United States of America Patent
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Oct 25, 2016
Grant Date -
May 1, 2014
app pub date -
Jun 15, 2012
filing date -
Jun 17, 2011
priority date (Note) -
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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).
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