Dyes are natural and synthetic substances that chemically bind to materials to which they are applied. The use of textile dyes puts high demands on water use, which is critical because textile production often takes place in areas that already suffer from water scarcity. The process of dyeing is also a major source of water pollution, as many textile-producing regions lack adequate environmental and health & safety legislation. As a result, unfiltered wastewater is often discharged into local waterways. This causes serious environmental and health hazards, aggravated by the fact that many dyes contain heavy metals such as lead or cadmium and some can break down into carcinogenic compounds. Further concerns are linked to the continuous release of such substances through domestic laundering.(1-4)
DYES
