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Myrobalan, Ground
$3.30 – $25.50
Ground nuts of a tropical tree, Terminalia chebula.
Use on protein or cellulose fibres. Considered both a mordant and a dye, because of the high tannin content. Yields a light butter-yellow to beige or mushroom. Substantive, no mordant needed. Use at 15-20% WOF as a mordant on cellulose fibres. As a dye, use at 20-30% WOF for medium shades.
TO USE:soak 24 hrs in water to dissolve. Add more water if necessary and enter fibre. Bring to a high simmer for 1 hour. Let fibre cool overnight.
Light and washfastness: good.
Related products
Thiourea Dioxide
Sometimes called Thiox. Used in the INDIGO VAT dye process, thiox removes oxygen from the vat solution, allowing the indigo to work its magic. Thiox is also a colour remover, and is used for that purpose in discharge dyeing, to create white patterns on a coloured background.
TO USE: Follow the specific indigo vat recipe, for amounts and timing.
Dispose of spent dyebath in the usual way, most likely down the drain.
Thiourea dioxide has a shelf life but it's longer than some things you read might indicate. If the powder has a distinctive yellow look, it has probably oxidized to some degree and may no longer be effective. Store in a cool, dry place out of the light i.e. in a cupboard in the house, not out in the garage.
CAUTION: Should be done OUTDOORS ONLY or with excellent ventilation. Avoid breathing fumes. Wear a mask when handling powders. Wear gloves.
Titanium oxalate
Used as a MORDANT in natural dyeing, which allows the plant pigments to bond with the fibres.
Titanium is used both on protein and cellulose fibres, giving vibrant orange and gold tones when dyes contain tannins. As a mordant, this is relatively new and not much information abounds in books or even online. It may be the closest thing now available to replace chrome, which nobody much uses any longer.
TO USE: weigh the dry fibre or yarn. Calculate mordant required for 8 to 15% WOF (weight of fibre). Dissolve in hot water. Fill pot with sufficient water for the fibre to move, add titanium and stir. Enter fibre. Bring to 180-200 degrees F and hold 1 hour. Stir yarns frequently. Cool, remove fibre and wash well. Dye immediately or dry for later.
Some interesting results are being produced doing Eco-Printing on fabric, using Titanium as a mordant.
We cannot seem to find much information on safe disposal of a Titanium mordant bath. Nothing we've found indicates it to be particularly toxic or harmful to plumbing or sewer systems, but to be on the safe side it may be best to dispose of this outdoors on a gravel driveway or similar place.
CAUTION: wear a mask when handling powders. Wear gloves when rinsing or handling wet yarns. BEST DONE OUTDOORS or with very good ventilation. Avoid breathing fumes.
Weld, Dried Chopped
Dried and chopped tops from Reseda luteola.
Use on protein or cellulose fibres. An ancient source of excellent bright yellows. Pre-mordanting recommended. Alum/c.o.t. mordant gives good results. Use at 30-50% WOF for medium shades.
TO USE: soak in water overnight, then simmer mixture at 160-175°F for 1 hour. Cool and strain. Add more water if needed and enter pre-mordanted fibre. Hold at a 160-175°F for one hour. The brightest yellows develop at these cool temperatures.
Light & washfastness: very good.
Logwood, Chips
Dried and cured chips from a tropical tree, Haematoxylum campechianum.
Use on protein or cellulose fibres. Pre-mordanting essential. Produces dramatic pink, blue, maroon and purple to black shades. Use at 20-50% WOF for medium shades.
TO USE: place chips in a stocking and soak overnight in cold water. Bring to a simmer for 1 hour, cool and remove stocking. Enter premordanted fibre and simmer for 1 hour. Bath may be used for successive dips, and by the 3rd or 4th dip the colours being yielded change to golds, greens or browns.
Light and washfastness: average. Keep dyed fibres away from bright light.
NEW: Logwood Extract: this has already been soaked out then reduced down to a powder. It's expensive but very strong and super convenient. Simply weigh out the extract at around 10% weight of fibre for medium shades, or adjust for darker or lighter. Dissolve in a measuring cup with hot (but not boiling) water, add to your dyepot with water, mix well, add your fibre and simmer for an hour.