Cotton fabric damage due to metal ion catalysis of hydrogen peroxide decomposition during bleaching
Articles > Article · 2008
Authors: Ayşegül KÖRLÜ, E. Bılgın
AATCC REVIEW, Journal Indexed in SCI Expanded, International, 2008, vol 8, pp 44-48
Summary
Cellulose fibers are quite sensitive to the effects of alkaline and oxidative agents-damage occurs mostly during the bleaching process. The presence of some metal ions such as iron, copper, chromium, nickel, and manganese, and their oxides and salts during the peroxide-bleaching process can damage the fabric. In this work, the catalytic metal decomposition of hydrogen peroxide and the effects of any damage that occurs during the bleaching process were investigated, As the decomposition rate of hydrogen peroxide caused by metal ions increases, the amount of oxycellulose/hydrocellulose and fabric damage increases. Manganese (Mn+2) and copper (Cu+2) ions cause more catalytic decomposition than iron (Fe+2 and Fe+3) and other metal ions studied.