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nitrocellulose screen printing ink
pigmented ink composed of nitrocellulose, film former, plasticizer, and high boiling solvents, ...
Furthermore, the nitrocellulose film base of all early film stock was dangerous and highly flammable, creating considerable risk for those not accustomed to the precautions necessary in its handling.
As a negative process, a piece of clear glass is coated with a very thin layer of iodized collodion (made from gun-cotton [nitrocellulose] dissolved in ether and alcohol, mixed with potassium iodide).
 See also: Time, Image, Color, Type, Photograph
  
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