Difference between revisions of "Red decay"
From www.leather-dictionary.com - The Leather Dictionary
| Line 8: | Line 8: | ||
<p align=center> | <p align=center> | ||
| − | [[bild:Red-rot-02.jpg| | + | [[bild:Red-rot-02.jpg|500px]] |
| − | [[bild:Red-rot-01.jpg| | + | </p> |
| + | <p align=center> | ||
| + | [[bild:Red-rot-01.jpg|500px]] | ||
</p> | </p> | ||
<p align=center> | <p align=center> | ||
| Line 16: | Line 18: | ||
<p align=center> | <p align=center> | ||
| − | [[bild:Roter-Zerfall-02-Ledermuseum-Offenbach.jpg| | + | [[bild:Roter-Zerfall-02-Ledermuseum-Offenbach.jpg|500px]] |
| − | [[bild:Roter-Zerfall-01-Ledermuseum-Offenbach.jpg| | + | </p> |
| + | <p align=center> | ||
| + | [[bild:Roter-Zerfall-01-Ledermuseum-Offenbach.jpg|500px]] | ||
</p> | </p> | ||
<p align=center> | <p align=center> | ||
''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> | ||
<p> </p> | <p> </p> | ||
| − | |||
| − | |||
| − | |||
== Additional information == | == Additional information == | ||
Latest revision as of 16:54, 28 November 2022
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