Chestnut tannin
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Description
A vegetable tannin of the pyrogallol class is extractable from chestnut wood. Chestnut tannin extract has a low pH, low salts content and produces a firm, heavy leather with a pale, reddish color. Chestnut extract is usually mixed with other tannins, such as Quebracho, Mimosa, or myrobalans. Extract from the tree bark, while not used as a tannin, has been used as a dye. Its dark color extracts were used in 19th century Italy and southern France to make an inexpensive fast black dye for silk.
Synonyms and Related Terms
chestnut bark; chestnut extract; chestnut dye
Other Properties
Soluble in water.
Sources Checked for Data in Record
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- Website address 1 Comment: American Leather Chemists Association Glossary at www.leatherchemists.org
- F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876