Comparitive Study on Application of Homo - Bifunctional Reactive Dye on Different Cellulosic Fibres and its Colour Characterization

Present research aims at the comparative study of the colour characterization of different cellulosic fibres dyed with homo - bifunctional reactive dye. Bifunctional dyes have enhanced fastness, faster washing off, and application across a larger temperature range. In addition to that, these dyes gave considerably good substantivity and exhaustion values. This strategy reduced the amount of colour in the effluent by improving colour use. Bright and deep hues are produced by bi - functional reactive dyes because they tend to be highly soluble and have good levelling capabilities. Both the cellulosic fibres namely, cotton and viscose rayon were dyed under similar processing conditions and then evaluated for their colour strength and fastness properties. Better exhaustion results were obtained for viscose rayon as compared to cotton fabric.