Cellophane
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
This article from the 1928–1936 Great Medical Encyclopedia describes cellophane as a transparent, glass-like, waterproof, and flexible thin film made from cellulose. It details its use in pharmaceutical packaging, dressings, and food wrapping, as well as its application in optical light filters.
Encyclopedia entry (1928–1936)
CELLOPHANE, a transparent, glass-like thin paper in the form of a film, waterproof and flexible. Cellophane consists of thin sheets of cellulose obtained from viscose. The usual thickness is 0.3–0.5 mm. Cellophane caps and wrappers are used for sealing medications, dressings, and foodstuffs. Frequently, transparent films made of acetylcellulose are also referred to as cellophane. Cellophane is likewise used as a material for light filters—colored ones, as well as selective ones (Wood's filters, which transmit only ultraviolet rays).
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“Cellophane.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/cellophane/