Wash fast dyes are designed to permanently dye protein fibers -- they work on animal fibers like wool, silk, angora, mohair, alpaca, and on nylon.( they will also work on dog hair and other novelty animal fibers) They have excellent wash and light fastness properties. All colors intermix well and dye with a minimum of salt and acid. You may substitute ammonium sulfate to improve levelness (for pastel to medium shades) or citric acid crystals ( for pastel to dark shades) for acetic acid 56% and obtain level dyeing results without the odor. These dyes are applied at a boil for solid shade dyeing and steam set when printing, hand painting or rainbow dyeing. Two ounces of dye will color 12 pounds of wool to a medium shade. Or many more to a pastel shade. For best results pre soak your fiber with synthrapol or calsoline to wet out the fiber and get the best dye penetration
