Eastern Brazilwood - also known as Sappan wood, is found in the heartwood of trees belonging to the species Caesalpinia Sappan. Two well known sources are Pernambuco from Brazilian coast and Sappanwood found throughout East Asia. This wood is high in tannin and the colourant Brazilian.
Brazilwood (Sappan) will produce lovely warm reds when dyed at a 20% wof and deep crimson reds when dyed at 50-100%. The dyebath can be reused many times for progressively lighter colours. The wood chips can be dried for future use. Startling variations can be achieved by altering the pH of the dyebath - from bright orange to blue reds. Fabrics dyed with brazilwood are fast to washing but somewhat fugitive to light.