Mordants, Natural dyes and mordants
Sodium hydrosulphite
20 in stock
€2.95 / 100g
20 in stock
Sodium hydrosulphite is an essential ingredient for Indigo dyes.
Usually the ratio used is 2% Indigo and 7% sodium hydrosulphite (on fabric weight).
A bath of 20 grams Indigo needs about 70 grams sodium hydrosulphite.
(All above are indicative, test for yourself what works best!)