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.
  
  
 
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''Red decay, seen in the [[Leather museum|DLM - German Leather Museum in Offenbach]].''<br></p>
 
''Red decay, seen in the [[Leather museum|DLM - German Leather Museum in Offenbach]].''<br></p>
 
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== Additional information ==
 
== Additional information ==

Latest revision as of 18:54, 28 November 2022

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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.


Red-rot-02.jpg

Red-rot-01.jpg

Red decay - Red Rot

 

Roter-Zerfall-02-Ledermuseum-Offenbach.jpg

Roter-Zerfall-01-Ledermuseum-Offenbach.jpg

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

 

Additional information


Colourlock-GB-03.jpg

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