Rapid Fast Azoic Dyes have insoluble azo group. These dyes do not get in ready-made arrangement in the marketplace. These are made by reacting two components so-called coupling method as well as diazo component. These are different from other colors and the application process of these is also different from others. These are also known as the magic colors as these ask for very low temperature. These dyes are typically used for lighter shade dyeing and are directly insoluble in water. Brightness of these Rapid Fast Azoic Dye is really good and has high fastness attributes.