Hydrogen peroxide and potassium per-oxo-disulphate combined room temperature bleaching of jute, cotton and jute-cotton union fabrics - An energy-efficient ecofriendly process

摘要

A method for room temperature bleaching of jute, cotton and jute-cotton union fabrics using a combination of H_2O_2 and K_2S_2O_8 has been optimized. The measurement of physical properties, such as breaking tenacity, weight loss and surface appearance, including SEM study indicates that the proposed room temperature bleaching process is less damaging to the three types of fabrics studied as compared to conventional hot (85℃) H_2O_2 bleaching. The whiteness index is within the acceptable range. The suggested reaction mechanism indicates that K_2S_2O_8 acts as a peroxide booster showing a synergistic action. This room temperature bleaching process is energy efficient, ecofriendly and economical, which can be easily adopted by both small scale and large scale sectors.