Stir gently for 30–45 minutes until the water is clear (this indicates all dye has attached).
Add the wet fiber to the pot and gradually raise the temperature to a simmer ( acid dye
Acid dyes are anionic (negatively charged) and, when added to hot, acidic water, form a strong ionic bond with the cationic (positively charged) amino groups in protein fibers. Stir gently for 30–45 minutes until the water
Add 1/4 cup of white vinegar or 1 tablespoon of citric acid per pound of fiber. when added to hot