Acid Dye May 2026

Add the wet fiber to the pot before the dye is at full temperature to ensure an even, level color.

Acid dyes are highly effective, vibrant, and water-soluble colorants specifically designed to bond with (wool, silk, alpaca, mohair, cashmere) and nylon in a mildly acidic environment. They are known for exceptional colorfastness and producing deep, brilliant shades. Despite the name, the "acid" refers only to the necessary addition of white vinegar or citric acid to the dye bath, not the dye itself. Essential Supplies Protein Fibers: Wool or silk yarn/fabric. acid dye

Do not stir wool vigorously while hot to prevent felting. Add the wet fiber to the pot before

Respirator mask (for powder handling), gloves, and safety goggles. Despite the name, the "acid" refers only to

Always use a respirator when handling dry dye powder to avoid inhaling fine particles.

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.

Stainless steel or enamel pot (non-food-safe), measuring spoons, scale, and stirring utensils. How Acid Dye Works