Dyes fibre reactive
Dyes Fibre Reactive – the molecules of fibre reactive dyes actually react and bound to the fibre molecules. These dyes are the best quality and most ecologically sound synthetic dyes available. They contain no heavy metals or other known toxic substances. The colours are brighter, richer, and exhibit superior colourfast properties.
Very little residual dye comes out in the wastewater. Significantly more costly than using conventional direct dyes but the quality and ecological benefits are far superior. See fixation, Oxidation