albumen paper

albumen paper

noun Photography.
a printing paper coated with albumen, salt, and citric acid and sensitized with silver nitrate, used c1850–80.
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Encyclopedia Britannica
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albumen paper

light-sensitivelight-sensitive paper prepared by coating with albumen, or egg white, and a salt (e.g., ammonium chloride) and sensitized by an aftertreatment with a solution of silver nitrate. The process was introduced by the French photographer Louis-Desire Blanquart-Evrard in about 1850 and was widely used for about 60 years thereafter. Early employers of the process applied by hand the albumen and the silver solution, but by 1869, paper thus treated could be stored and marketed in bulk

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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