Wet processing is the process used to convert grey fabric into finished fabric. It involves several key steps: pre-treatment processes like singeing, desizing, scouring, and bleaching are used to clean and prepare the fabric. Then dyeing or printing is used to impart color. Finally, finishing processes are applied to provide specific characteristics. The wet processing of cotton fabric typically involves singeing to remove fuzz, desizing to remove size, scouring to remove natural and added impurities, bleaching to remove natural color, and optional mercerization to improve luster before dyeing and finishing.