cellophane

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cellophane Flexible, transparent film made of regenerated cellulose and used mostly as a wrapping material. It is made by dissolving wood pulp or other plant material in an alkali, to which carbon disulphide is added to form viscose. This is forced through a narrow slit into a dilute acid where it precipitates (separates as solid particles) as a film of cellulose. It is then dried and waterproofed.

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Cellophane Trade name for the first of the transparent, non‐porous films, made from wood pulp (cellulose), patented in 1908 by the Swiss chemist Jacques‐Edwin Brandenburger; waterproof cellophane for food wrapping was developed by Du Pont in 1926. Still widely used for wrapping foods and other commodities.

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cel·lo·phane / ˈseləˌfān/ • n. a thin transparent wrapping material made from viscose.