Recipe: Mordanting Plant fibers
(such as cotton or linen)
Preparation: The fabric should be washed as hot as possible. I.e.cotton and linen at up to 90°C.
Processing
Step 1: For approx. 100 g of fabric dissolve 30 g of Potash Alum (#64100) in 200 ml of hot water and stir into 4-5 l of cold water.
Step 2: Add 40 g of vinegar essence (24.9% acid).
Step 3: In a separate vessel, dissolve 10 g Calcined Soda (#64062) in 200 ml of hot water.
Slowly add the Soda solution in portions to the alum/vinegar solution (if added too quickly, chemical reactions such as violent foaming may occur).
Slowly add the Soda solution in portions to the alum/vinegar solution (if added too quickly, chemical reactions such as violent foaming may occur).
Step 4: Put the washed, damp fiber into the mordant bath and leave it for 12 hours or even longer. Move gently from time to time. Rinse well and place still damp in the prepared dye bath.
Note
Depending on the fabric itself (i. e. wool, cotton, silk), the exposure method, time and intensity, the dyes unfold many different shades.
We assume no liability for the processing instructions described above. In any case, we recommend the production and evaluation of sample surfaces.
