As the dyes of textiles differ greatly in chemical composition, different methods must be tried, beginning with the simplest, until the stains disappear. For washable materials, No. 1 may be tried.

1. Cold or warm water and sunlight, for stains on washable materials. Rinse the stains in water, or soak them (for 10 or 12 hours, if necessary), and then dry them in the sun. Repeat the treatment if the stains are not removed entirely by the first treatment. Spots on woolen and silk materials sometimes may be removed by soaking or washing in cold water.

2. Javelle water.

3. Potassium permanganate.

4. Hydrogen peroxide made slightly alkaline with ammonia, for stains on white silk or wool. Soak the stains in this solution until they disappear, and then rinse thoroughly.