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$3.52 – $27.20 Select options
Dried roots of Rubia tinctoria, available ground or whole. Use on protein or cellulose fibres. Pre-mordanting recommended. A classic dye, giving dramatic reds, brick-reds to orange and coral. Use at 50-100% WOF (weight of fibre) for medium shades. TO USE: simmer in water below 185°F for 30 minutes. Cool overnight, then repeat simmer and strain. Add more water and enter pre-mordanted fibre. Hold below 158°F for one hour. Higher temperatures may produce browns rather than oranges or reds, so try to avoid bringing to a high simmer or boil. Ground madder is much easier to work with than the whole dried roots.. Light and washfastness: excellent.
$11.00 – $85.00 Select options
Whole dried insects. A scale insect native to Mexico/Central America that feeds exclusively on prickly-pear cactus. Cochineal is a very common source of red food colour with a long historical use. No mordant is required although they will extend the colour range in interesting ways. Use at 3-10% WOF for medium, 10-20% WOF for strong shades. Cochineal is expensive but very generous and can easily give 8 or more successive dips from the same dyebath. Have plenty of fibre ready and waiting! TO USE: grind finely in a coffee grinder (Cochineal is non-toxic but may stain your next pot of coffee). Soak overnight in cold water with 5% Cream of Tartar to WOF. Simmer 15 minutes, cool and strain -- we find a sieve lined with moist paper towel does the trick. Return to pot, add more water if necessary then enter the fibre and simmer for 35 to 45 minutes. Light/washfastness: excellent