Home › The Art Of Dyeing › Blue Purple, Fast Color

Blue Purple, Fast Color

100 pounds of wool are first dipped in the blue vat to a light shade, then boiled in a solution of 15 pounds alum, and 3 pounds half-refined be desired bluer, add, after 30 minutes work- tartar, for 1½ hours; the wool taken out, ing, 1 gill ammonia; if a redder tint is cooled, and let stand 24 hours. Then boil in wanted, add a wine-glassful of hydrochloric fresh water 8 pounds powdered cochineal for acid; but if this last be used, the goods must a few minutes; cool the kettle to 170° Fahr.; be washed out before drying. handle the prepared wool in this for 1 hour,