Mordants, Tannins and Assists.
You can not use natural dyes without knowing and using basic mordants and tannins. They will improve light fastness, wash fastness and rub fastness of your dyed textile.
We only sell the highest quality materials, sourced world wide. Wherever possible I will always choose organic and buy straight from small producers. Learn all about mordants, tannins and assist in this clear blog post.