Himalayan Rhubarb

rheum emodi

Himalayan Rhubarb is a natural dye obtained from the roots of a mountain rhubarb variety that grows in the Himalayas. It gives deep golden tones varying from yellows to yellow-reds. Use alum mordant at 15% WOF for protein fibres. For cellulose, mordant with tannin at 8% WOF and then either alum at 15% or aluminum acetate at 8%.

See the MAIWA GUIDE TO NATURAL DYES

Mordanting: Use alum mordant at 15% WOF for protein fibres. For cellulose, first mordant with tannin at 8% WOF, then either 1) use alum at 15% with soda ash at 2% or 2) use aluminum acetate at 8%. 

Dyeing: Use at 10-30% WOF for medium to dark depth of shade. Simmer mordanted fibres gently for 1 hour.

Below: Himalayan Rhubarb 20% WOF