Kier boiling:
Kier boiling is a scouring process
for cotton and linen in which the fibers are treated for removal of
impurities by boiling with a 1% solution of caustic soda. Its main
purpose is to remove most of the natural impurities such as wax, wood
fragments and oil stains. Kier boiling process of cotton is performed in
a kier boiler and the fabric is scoured in rope form by alkali