The application of dyes in textile colouration has existed for centuries. Dyes are obtained from both natural and synthetic sources. Synthetic dyes are manufactured from chemical compounds and have been placed on a high pedestal in the textile industry due to their improved colour fastness. varied range of pigments and easy application as compared to natural dyes. https://www.chiggate.com/3m-speedglas-9002nc-welding-helmet-fashion/