For the traditional reactive dyeing process you will need dye powder, soda ash, urea (opt.), fabric detergent (opt.), dust mask, gloves, safety glasses. Dye Mixing: For the color swatch, we used 1/2 tsp Peach Tree dye powder to 1/2 cup warm water with 1/2 tsp urea. Use your own favorite reactive dye process or one of the dyeing procedures from the links below. Happy dyeing!