Engineering Question #1950
Lindsay, a 22 year old female from New York City asks on March 2, 2004,
What is the chemical make-up of film? I am searching for a detailed make-up of either 35mm film for photography or film that is used in the cinema.
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answered on March 2, 2004
The main ingredient or the base of many films is cellulose triacetate, also known as "celluloid". Nowadays, modern film base is kind of polyester. A diagram of the layers of photographic film can be found at Kodak.
A history of the plastic for film can be found at the Plastics Historical Society.
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