Azo dyes
Pigmented Inks forming colours of immense strength and purity
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More Photographic Terms ...
-Azo dyes - compounds forming colors of great strength and purity. Used in camera filters and integral tripack dye-bleach materials.
The commonly used photographic light-sensitive materials are the silver halides used in films and papers, diazo dyes, and bichromated gelatin.
Since it uses azo dyes on a polyester base, the print will not fade, discolor, or deteriorate for a long time.
Cibachrome's azo dyes are manufactured into the paper, not added later. That's why Cibachromes are called "Dye Destruction Prints" in museums compared to everything else, including Fuji Supergloss, which are called "Color Chromogenic Prints." ...
 See also: Dyes, Opaque, Line, Space, Silver
  
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