Cochineal Dyeing Instructions [Download]

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Cochineal Dyeing Instructions [Download]

COCHINEAL is derived from the dried bodies of Cochineal is sensitive to acids and bases so part the female of the Dactylopius coccus insect which from using mordants, Cochineal red can be turned live on the prickly pear cactus in Mexico, Central orange by adding white vinegar to the dyebath and South America and the Canary Islands. Most and fuchsia by adding soda ash. Be careful when commercial Cochineal is exported from Peru and you wash your fibre after dyeing that the soap you is used in food, cosmetics and drugs. As a natural use is neutral PH or your dyeing will change dye Cochineal gives a huge range of reds, fuchsias, colour. pinks and purples. It is usually available as the If you’re using Cochineal Extract the dye can be dried insect or as a concentrated powder extract. dissolved in hot water and added directly to the It has excellent light and wash fastness. Use 3-8% dyebath. Follow the same dyeing method from **, of dried insect WOF for a medium depth or 1% and use the same mordanting method. WOF of extract. MORDANTING PROTEIN Use alum at 15% WOF CELLULOSE Use tannin at 8% WOF Use alum at 15% WOF or Use alum acetate at 8%. For xmas reds add cream of tartar at 6% WOF to the alum mordant bath or the dyebath. For purples add iron at 2-4% WOF to either the mordanting bath or the dye bath DYEING Grind or crush the insects into a fine powder. Cover with water and boil for 30 minutes then strain the liquid and put to one side. Put the cochineal pulp back into the saucepan and boil again for another 30mins. Repeat this twice more. The remaining pulp can be stored in water in a glass jar for several weeks and be reused. ** Use the stock solution to make up your dyebath. With the mordanted fibre. Adjust the depth of shade with the amount of stock solution. Bring the dyebath slowly to the boil and continue to simmer until you’re happy with the depth of shade. Rinse well in warm water. The remainder of the dyebath can be saved for later use. .

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