Jacquard Acid Dyes: Turquoise Jacquard Acid Dyes are concentrated, powdered, hot water dyes that produce the most vibrant results possible on protein fibers including silk, wool, cashmere, alpaca, feathers and most nylons. Do not be alarmed by the name --the only acid involved is the vinegar you addPackaged in convenient, reclosable 1/2 oz. jar that will color about two pounds of fiberJacquard acid dyes are extremely bright and colorfastIf you can do a load of laundry, you can use these dyesIt's that easyIn addition to dyeing garments in a washing machine, you can use to paint or print warehouse group number :7689