Natural dyes can exhibit better biodegradability and generally have a higher compatibility with the environment. Also they can show a lower toxicity and allergic reaction than synthetic dyes (Gupta et al., 2001).
From the economic point of view, production costs of natural dyes are influenced by production costs of raw materials, dyeing costs and standardization costs.
The major disadvantage of the natural dye is the use of metal mordants which are used to increase the dye uptake, improve the fastnesses and obtain different colour effects (Sasmita et al., 2012). These substances cause serious ecological problems on fabric and in