direct painting with acid dyes on wool
  • Is it necessary to add vinegar or citric acid to the stock solution of Jacquard acid dyes when direct painting on wool? Should I soak the wool fabric in a vinegar and water solution prior to painting? I understand that steaming is necessary, how long should I steam?
  • hi,
    Below are the instructions for silk and wool.

    Acid Dyes for Silk Painting:

    Add 8 oz. (1 cup) of very hot water to one .5 oz. Acid Dye Powder. Stir until dissolved. This will yield a very concentrated dye solution. Most colors require further dilution. Note: every color has a different solubility. Some colors are difficult to dissolve such as 605 and 618, but most are easily dissolved. The final concentration of the dye solution for painting should be between 4 and 8%. Start by adding 4 oz. (1/2 cup) of water to the 8 ounces you already have, test the color and continue adding water until desired shade is achieved. Keep in mind that the color intensity really develops in the steam setting process. Most colors will remain stable in solution for a long period of time. However, some colors will fall out of solution upon cooling or from sitting for a matter of weeks. To restore them simply heat them on the stove. A small amount of alcohol (about 1 tablespoon) can be added to the dye solution as a wetting agent.

    You will also need to steam these to set the colors.