Difference between revisions of "Red decay"
From www.leather-dictionary.com - The Leather Dictionary
m |
|||
| Line 4: | Line 4: | ||
| − | 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 | + | 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 from hyperacidity caused by the influence of sulphur dioxide in humid air, which was particularly abundant due to gas-lit lanterns in earlier times. Sulphur dioxide is converted into sulphuric acid and this attacks the leather and pulverizes the surface. Such [[leather damages|damages]] are irreversible. |
Revision as of 13:56, 26 April 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 from hyperacidity caused by the influence of sulphur dioxide in humid air, which was particularly abundant due to gas-lit lanterns in earlier times. Sulphur dioxide is converted into sulphuric acid and this attacks the leather and pulverizes the surface. Such damages are irreversible.
Red decay - Red Rot
Red decay, seen in the DLM - German Leather Museum in Offenbach.
Additional information
a kotori web solution