Natural dyes are known for their use in coloring of food, leather, wood, as well as natural fibers like wool, silk, cotton and flax since ancient times Natural dyes have also been used for printing and dye-sensitized solar cells. It is reported that some natural dyes not only dye withunique and elegant colors, but also provide antibacterial, deodor-izing and UV protective functions to fabrics . At the present time, the use of natural dyes in textile application is witnessing very rapid growth.This is mainly attributed to strict environmental standards set bymany countries to avoid the health hazards associated with syn-thetic dyes used in textiles. The recent ban on the use of azo dyesby the European Union has also increased the scope for the use of natural dyes.Mangrove trees, also called “Khong Khang” in Thailand, are inthe Rhizophora species and are widely used as medicinal plants of