Safety film
Photographic film called safety film is made with an acetate base, chemically either cellulose diacetate, cellulose acetate propiarate, cellulose acetate butyrate, or cellulose triacetate. Beginning in the 1920s, it replaced nitrocellulose, or nitrate, film bases used previously as the film stock used in both amateur and professional applications. ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Cellulose triacetate films are still in use today for some applications, but have largely been replaced with polyester bases that are more stable and more durable. ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Photographic film: Photographic film a sheet of plastic (polyester, celluloid (nitrocellulose) or cellulose acetate) coated with an emulsion containing light-sensitive silver halide salts (bonded by gelatin) with variable crystal sizes that determine the sensitivity and resolution of the film. When the emulsion is s... 1920s: Sometimes referred to as the "Jazz Age" or primarily in North America as the "Roaring Twenties".... Nitrocellulose: Nitrocellulose (Cellulose nitrate, guncotton) is a highly flammable compound formed by nitrating cellulose (e.g. through exposure to nitric acid or powerful nitrating agent). This compound, as an explosive, was known as guncotton.... Safety film related Images and Photos (experimental)
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~ Related Subjects ~Latent (1) - Film developing (1) - X-ray (1) - Light (1) - Electromagnetic radiation (1) - Jazz Age (1) - Nitric acid (1) - Explosive (1) - Cellulose (1) - North America (1) - Roaring Twenties (1) - Resolution (1) - Film stock (1) - Plastic (1) - Nitrocellulose (1) -~ Community ~
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