Review on Metal and Natural Mordants for Dyeing Fibers

At present, a higher demand is put towards the use of natural dyes due to increased awareness of the environmental and health hazards associated with the synthesis and use of synthetic dyes. Natural dyes are non-carcinogenic, produce soothing and exclusive color to the textiles, and have better biodegradability and higher compatibility with the environment. However, with the increased interest in natural plant dyes a greater importance was given to using mordant in dyeing processes. The mordants classified into two main groups: natural and metal mordant. The action of the mordant is purely chemical bonding, which is fixed on the fibers in combination with any given colorants. This paper presents the latest research on metal mordant and the development of natural mordant for use in the fiber dyeing process. For this end, an attempt structure properties to improve dyeing properties and to test landscape perspective.