Mercerization is a treatment of cotton fabric with a concentrated solution of sodium hydroxide (NaOH). This process results in swelling and structural modification of the cotton fibers. Specifically, mercerization breaks hydrogen bonds in cellulose and allows molecular chains to rearrange, forming new bonds. This leads to increased luster, tensile strength, dye uptake, and dimensional stability of the cotton fabric. Conventionally, mercerization uses 18-24% NaOH solution at 15-18°C for 55 seconds while applying tension to the fabric. The process involves impregnation in the alkaline solution, stabilization, rinsing, and drying stages.