Difference between revisions of "Red decay"

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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 sulphur dioxide in humid air, which was abundant in particular due to gas lit lanterns in earlier times. Sulphur dioxide is converted into sulphur acid and this attacks the leather and pulverizes the surface. Such [[leather damages|damages]] are irreversible.
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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 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.
  
  

Latest revision as of 15:56, 26 April 2017

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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 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.


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Red decay - Red Rot

 

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Red decay, seen in the DLM - German Leather Museum in Offenbach.

 



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