Difference between revisions of "Red decay"
From www.leather-dictionary.com - The Leather Dictionary
(Created page with "<p align=center> 300px </p> Der sogenannte '''rote Zerfall''', engl. ''red rot'', ist ein Phänomen, das vor allem in Bibliotheken, bei sehr ...") |
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| − | + | The so-called red decay or red rot is a phenomenon that occurs mainly in libraries with very old [[vegetable-tanned leather]] [[Leather book cover|book bindings]]. The tanned leather suffers by hyperacidity caused by the influence of sulfur dioxide in humid air, which was favored in particular by the gas illumination in earlier times. The sulfur dioxide is converted into sulfuric acid. This attacks the leather and pulverize the surface. The [[leather damages|damage]] is irreversible. | |
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| − | '' | + | ''Red declay, seen in the [[Leather museum|DLM - German Leather Museum in Offenbach]].''<br></p> |
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Revision as of 21:45, 9 February 2017
The so-called red decay or red rot is a phenomenon that occurs mainly in libraries with very old vegetable-tanned leather book bindings. The tanned leather suffers by hyperacidity caused by the influence of sulfur dioxide in humid air, which was favored in particular by the gas illumination in earlier times. The sulfur dioxide is converted into sulfuric acid. This attacks the leather and pulverize the surface. The damage is irreversible.
Red declay - Red Rot
Red declay, seen in the DLM - German Leather Museum in Offenbach.
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