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Additional recommended knowledge
Most commercial photo emulsion products consist of either bichromated gelatin or a photopolymer such as bichromated polyvinyl alcohol (PVA) in suspension. It is often light brown in color and has the consistency of heavy syrup. Most brands/types of emulsion have a short shelf life (on the order of days or months) and must be refrigerated.
After being used for screen printing, the emulsion may be stripped from the screen using chemicals known in the industry as reclaimer, usually one or a number of extremely toxic solvents.
Photo emulsion is commonly used in contemporary art to transfer photographs to canvases or other objects.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Photo_emulsion". A list of authors is available in Wikipedia.|