Quebracho
Schinopsis quebracho-colorado
This dye comes from a tree native to South America, which is very high in tannins. The dye can vary in colours from coral, warm red brown, yellow or green depending on the species.
See the MAIWA GUIDE TO NATURAL DYES
Mordanting for the brown colour: Use alum mordant at 15% WOF for protein fibres and then, in a separate bath, use quebracho (see below).
For cellulose fibres either 1) Just use quebracho alone at 15% or 2) for a deeper colour, use a clear tannin (like oak gall) and then alum at 15% and soda ash at 2% and then a separate quebracho dyebath (see below)
Dyeing with the extract: Use extract on mordanted fibre at 5-10% WOF for a medium depth of shade.
Dyeing with the powder: Use 20-30% WOF or a medium depth of shade.
Options: To deepen the quebracho colours add an alkali or iron mordant.
Below: Quebracho 10% WOF
