The term coloration means ‘to add color’. There are two ways of adding color to a textile substrate dyeing and printing. Dyeing completely covers the textile with color, whereas printing adds color to the fabric surface in discrete or distinct places. In 2013, polyester and cotton are consumed mostly for the apparel industry. It is important to know about the dyeing of cotton and polyester, this book is dealing with dyeing of cotton and polyester with various dyes.