Bleaching Plant

Preparation, also known as pre-treatment, is the critical series of treatment and rinsing steps that determine the quality of all subsequent dyeing, printing, and finishing. Our plant runs a continuous process: desizing removes the starch and sizing agents applied during weaving that add stiffness but block dye penetration. Scouring uses alkali-based agents to break down natural impurities, dirt, grease, wax, and residual spinning lubricants. Hydrogen peroxide bleaching then achieves uniform whiteness without the harshness of chlorine-based methods.

Mercerizing is the final optional but critical step, cotton fabric is treated with concentrated caustic soda under tension for approximately one minute, then washed under controlled conditions to prevent shrinkage. This process enhances fabric lustre, increases tensile strength by up to 25%, and dramatically improves dye uptake, producing a fabric base with superior whiteness, absorbency, and dimensional stability.