How to Achieve a Pastel Color Using Acid Dye

Use a light concentration of acid dyes to achieve a pastel color such as this pink yarn.

Acid dyes come in powdered form and will create colorful combinations on protein fibers such as wool and silk. Use acid dyes to dye yarn, fabric or fiber for spinning and felting. Acid dyes produce bright, vibrant colors when you follow the directions on the package; to get a lighter, more subtle look, you will have to use far less dye. Use caution when working with acid dyes; this project is not suitable for children.

Things You'll Need

• Water
• Pot
• Stove
• Fiber, yarn or fabric
• Acid dye powder
• Measuring spoons
• Squeeze bottle or plastic water bottle
• Long spoon
• Vinegar or citric acid
• Face mask
• Rubber gloves

Instructions

1. Fill a pot with enough water to fully immerse the fiber, yarn or fabric you wish to dye. Place the fiber inside the pot, and put it on a low heat setting on your stove to keep it just below a simmer.

2. Mix up an acid dye solution in a plastic squeeze bottle --- such as a restaurant ketchup bottle --- or an old water bottle. Pour approximately 1 tsp. of dye in the bottle and add 16 oz. of water. Put the lid on the bottle, place your finger over the opening in the top, if there is one, and shake to blend the dye mixture.

3. Squeeze the dye mixture into the fiber and water on the stove a few drops at a time. Use a long spoon to gently stir the fiber to mix in the color. Continue to add a few more drops of dye at a time until you achieve the desired color saturation.

4. Add in 1 tbsp. of citric acid powder or 1/4 cup of vinegar to the dye pot. Pour the acid or vinegar off to the side and stir it into the water rather than adding it directly on top of the fiber or yarn. Stir it in, and continue to keep the heat just below a simmer for 30 minutes.

5. Remove the dye pot from the heat and allow it to cool completely. Remove the fiber or yarn, gently squeeze out the excess water and hang the fiber or yarn to dry.

Tips & Warnings

• Creating a liquid dye instead of using the powder directly will give you greater control over the dye color saturation and allow your dye to be pastel instead of bold.

• Dye powders are toxic if ingested. Use caution, and wear protective gear such as a face mask and rubber gloves.

• Never use the dye pot, spoon or measuring spoons to cook food; keep your dye tools and your cooking tools entirely separate.

References

• Dharma Trading: Instructions for Jacquard Acid Dyes
• Knitty; Dyeing for Grownups; Marie Christine Mahe