Dyeing
Dyeing is carried out to impart a solid all -
over shade to the fabric. The main purpose
of dyeing is to anchor dyestuff molecules
to the textile fibres. Dye shades are
obtained by treating the textile material
with a solutions containing dyestuff and
other auxiliary chemicals. Dyeing water
water is characterized by the presence of
unexhausted dyestuff and other chemicals.
The waste - water generally has high TDS,
colour and BOD concentrations (