The textile industry is well aware of the different bleaching conditions for cotton and wool. For the bleaching of cotton/wool blends, techniques that are efficient for both fibre components and cause minimum fibre damage, are essential. In order to minimise the damage to the wool component, industrial jig bleaching procedures for cotton/wool blends are based predominantly on the conventional wool bleaching process with hydrogen peroxide under mildly alkaline conditions, followed by a reductive bleaching treatment. Under these bleaching conditions, the cotton component in the blend cannot be adequately bleached, leading to an overall unsatisfactory bleaching performance and product quality of the blend. In addition, due to the relatively tight structures of woven substrates, a longer treatment time and/or more severe conditions are often required for wovens to achieve an equivalent white to the corresponding knitted goods. Although slight modifications of the peroxide bleaching conditions have been attempted in industry to improve the bleaching effectiveness, they often compromise the product quality.