FASHION INDUSTRY DICTIONARY

Define Mercerization.

Mercerization is one of the most important chemical finishes for cotton. This finish imparts luster to the cotton, increases its strength by nearly 25 percent, and improves dye affinity, producing brighter shades than are possible with unmercerized cotton. It also enhances fabric hand and drapability. The finish consists of treating the material while under tension with cold, concentrated sodium hydroxide solution (lye). Fabrics and yarns can be mercerized, but fibers cannot. Mercerization is a permanent finish, and it is one of the few finishes applied prior to dyeing.