Tannic acid (tannin) is a common mordant used in the dyeing process for cellulose fibres such as cotton, often combined with alum and/or iron.
Quercitannic acid is one of the two forms of tannic acid found in oak bark and leaves. The other form is called gallotannic acid and is found in oak galls. Tannic acid is a specific commercial form of tannin.
Before 1856, Natural dyes were used in time honoured techniques (as far back as 1500BC) but once synthetic dyes were became commercially viable textile dyers and artisans moved from traditional natural dyes to synthetic dyes to colour their cloth and fibre.
The Natural Dye range will dye any natural fibre using a handful of non-toxic mordants and additives to help fix the dye and also give you more colour variations. Natural dyeing is very much about reconnecting with the past - apart from using the plant materials you have at hand in your own garden, there are a number of traditional Natural Dyes and extracts including Indigo, Madder, Cochineal and Fustic.
By combining different dyes, mordants and depths of shade, you will produce an amazing palette of deep to subtle pastel colours. We hope you enjoy your Natural Dyeing adventure!