Abstract:

The colour component in the roots of the plant Morinda angustifolia has been isolated and its chemical structure established on the basis of chemical and spectroscopic studies. The dyeing properties of colour component have been evaluated on cotton and silk fabrics with and without the use of mordants. The yield of colour component varies from 10% to 20.9% depending on duration of extraction (30-240 min). Fair to good fastness properties are obtained on fabrics when dyed with 3% of colour component at 2% concentration of mordants.