Tannin rich natural dye.
For cold, hot and all-in-one dyebath techniques. Makes orange-brown colours. tannin mordant.
The acorn is the fruit of varieties of oak trees. Oak is native to the northern hemisphere, and over 500 varieties exist. Acorn tannin has good wash and light-fastness.
It can be used as a dyestuff for ginger brown colours, or as a tannin mordant.