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Uranium (0.1 to 2%) can be added to give glass a fluorescent yellow or green color. [8] Uranium glass is typically not radioactive enough to be dangerous, but if ground into a powder, such as by polishing with sandpaper, and inhaled, it can be carcinogenic. When used with lead glass with very high proportion of lead, produces a deep red color.
The surrealist Óscar Domínguez referred to his work as "decalcomania with no preconceived object". He took up the technique in 1936, using gouache spread thinly on a sheet of paper or other surface (glass has been used), which is then pressed onto another surface such as a canvas.
There is a high level of control over color matching, and multiple colors can be printed simultaneously. Unlike screen printing, digital ceramic printing on glass does not require screens and the files are stored digitally making printing of all sizes and replacement of any panel simple, in high resolution, full color. [3]
Tracing paper is paper made to have low opacity, allowing light to pass through.It is named as such for its ability for an image to be traced onto it. The modern version of tracing paper was developed for architects and design engineers to create drawings which could be copied precisely using the diazo copy process.
Low-iron, or water white glass, is made using special iron free silica, and is generally only available in 2.0 millimetres (0.079 in) thicknesses for picture framing applications. Because low iron glass light absorption can be as low as 0.5%, compared to about 2% for clear glass, the light transmission will be better than clear glass. Low iron ...
It has often been used as a supplementary technique in stained glass windows, to provide black linear detail, and colours for areas where great detail and a number of colours are required, such as the coats of arms of donors. Some windows were also painted in grisaille. The black material is usually called "glass paint" or "grisaille paint".
A heliographic copier or heliographic duplicator [1] is an apparatus used in the world of reprography for making contact prints on paper from original drawings made with that purpose on tracing paper, parchment paper or any other transparent or translucent material using different procedures.
Detail of 12th-century stained glass window in Strasbourg Cathedral; black and white paint has been used on the coloured glass. Secondly it refers to stained glass, used for windows. Here the design is made up using sheets of coloured glass, cut to shape and held in place by lead. The painting is the final stage, typically only in black. [2]