Present status of natural dyes

Abstract

The present status of natural dyes with reference to the stake holders of natural dyes, estimates of dye requirements, availability of natural dyes, technology for production, and some important natural dyes and mordants is critically discussed. Application techniques and fastness properties of natural dyes arc also briefly discussed. It is suggested that the natural dyes are not substitutes of synthetic dyes. Some of the limitations of natural dyes such as use of banned metal salts as mordants, poor fastness properties and use of agricultural land for growing natural dye plants can be overcome through research and development.