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Cellulose acetate film, or safety film, is used in photography as a base material for photographic emulsions. It was introduced in the early 20th century by film manufacturers and intended as a safe film base replacement for unstable and highly flammable nitrate film .
The company formed under the name of Dainippon Celluloid Company from a 1919 merger of eight regional celluloid manufacturers and changed its name to the present one in 1966. [4] Its first subsidiary, Fuji Photo Film, was set up in 1934 to produce nitrocellulose film. [5] Eventually this company became Fujifilm.
Cellulose acetate film, made from cellulose diacetate and later cellulose triacetate, was introduced in 1934 as a replacement for the cellulose nitrate film stock that had previously been standard. When exposed to heat or moisture, acids in the film base begin to deteriorate to an unusable state, releasing acetic acid with a characteristic ...
Acetate products are primarily used in cigarette filters, as well as in the production of fashion apparel and linings. Celanese also manufactures Clarifoil cellulose acetate film that is wood pulp based and certified biodegradable and compostable in home and industrial composting conditions.
Products such as calcium acetate, sodium acetate, acetic acid, and acetic anhydride became the basis for the company’s platforms. During World War II, RDX, a powerful explosive, was manufactured for the U.S. government at Holston Ordnance Works at Tennessee Eastman sites. At the peak of production near the end of the war, the ordnance plant ...
Cellulose acetate is also known as "safety" film and started to replace nitrate film in still photography in the 1920s. [1] There are several types of acetate that were produced after 1925, which include diacetate (c. 1923 – c. 1955), acetate propionate (1927 – c. 1949), acetate butyrate (1936–present), and triacetate (c. 1950 – present). [1]