tanning extract

tanning extract

[′tan·iŋ ‚ek‚strakt]
(materials)
Tannin-rich liquor extracted from woods and pulps; used in leather tanning.
References in periodicals archive ?
Tanning Extracts of Vegetable Origin: European Union Market Outlook 2010 and Forecast till 2015
The Ghurka signature vintage leather is pure vegetable tanned, entirely free of chemicals, utilizing tanning extracts from Mimosa and Quebracho tree bark and a slow and careful tanning process to produce this soft but durable leather.