This dye is manufactured from the dried roots of Rheum which is a traditional natural dye from China. Chinese rhubarb natural dye powder is easy to use and dyes excellent on protein and cellulose fibers alike.
When dyeing with rhubarb natural dye powder, you should always do so in a well ventilated space and not inhale the fumes. Rhubarb (and the rhubarb family) roots contain a lot of oxalic acid which is not good to inhale.
Use at 5-10% WOF.
Active dye component; Emodin (anthraquinone), chrysophanol, oxalic acids, tannins.
brick red (with an alkali modifier)
golden yellows (with an acidic modifier)
Green with ferrous sulfate post mordant.
Deep golden with copper mordant.
Bright yellow with alum mordant and a bit of vinegar in the dye bath.
100 grams of Chinese rhubarb will easily dye 1 kg of fiber.
Overdye rhubarb dyed fabrics with indigo for deep emerald greens.
Sustainably and renewable source, fair trade supply.
Chinese Rhubarb Powdered roots
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Maintain a constant temperature not to exceed 24° C. (75° F.). Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Heath and Safety
Do not ingest. Do not breathe dust. Wear protective gloves, safety goggles and a dust mask when handling fine dye powders and mordants.
Possibly harmful when swallowed or inhaled
Natural dye powders are no known environmental concern. Mordants and mordanted dye baths should be disposed in a sensible way according to your local waste disposal laws.
Natural dyes and mordants are shipped in a special packaging made from recypcled materials with a re-usable zipper.
Your pouches are shipped in either a flat padded envelope or a cardboard box depending on quantity and size.
We try to use reduce packaging and use recycled materials where possible.
Most packages are sent the same day or next day of order.
Shipping times depend per country and are out of my hands once I send the parcel. Averages to the United States have been 6-14 business days.
Shipping is according to the total weight of your parcel including packaging materials.
ALL packages are shipped with a tracking number. The tarcking number will be updated by mail once available.
Please note that most tracking is only available from the moment the parcel physically leaves the country. This may take a few days.
You will see your total shipping rate in your order.
At this moment it is not possible to ship your dye materials by EMS.