Himalayan Rhubarb
Reum Emodi
 
Concentrated extract of the roots of Reum Emodi, known for its' Ayurvedic Properties. Easily soluble in water and extremely concentrated a little goes a long way.
Rhubarb loves cellulose fibres, and is a substantial natural dye that does not need a mordant to attach itself permanently to the fabric.
Rhubarb natural dye extract is also a great use as a mordant in itself, use as a first layer for further use with indigo or other natural dyes or use in eco printing.
 
1-10% WOF for medium to deep shades
Active dye component; Emodin (anthraquinone), chrysophanol, oxalic acids, tannins.
Ph sensitive;  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.
 
Natural dye extracts are a super economic way to use natural dyes. They are more economic to store, ship and use, try once and never look back!