cellulose acetate (CA)
a thermoplastic resin manufactured by the action of acetic acid and acetic anhydride on purified cellulose obtained from cotton linters.
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Further information: Cellulose acetate film
Despite the dangers of the nitrate film base being known practically since its development, it was used in virtually all major motion pictures prior to 1952, ...
The base is generally made of a cellulose acetate. 4. Antihalation backing-The antihalation backing prevents light from reflecting from the base back into the emulsion. The antihalation dye is sometimes incorporated in the anticurl backing.
and coatings associated with the emulsion layer, the base generally accounts for the vast majority of the thickness of any given film stock. Historically there have been three major types of film base in use: cellulose nitrate, cellulose acetate and ...
 See also: Color, Light, Photograph, Photography, Film
  
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