In a single-stage preparatory process, hydrogen peroxide decomposes at a faster rate in the presence of pH buffers, whereby the activation energy is lowered. A relatively slower rate of peroxide decomposition is achieved in fabrics containing acrylic size. The damage to cellulose assessed in terms of the copper number and carboxyl content is slightly higher for acrylic-sized fabrics than starch-sized fabrics.
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References
1.
Anon, A bleacher's handbook - Part II, Colourage28 (24), 6-12 (1981).
2.
Cates, D.M., and Cranor, W.H., TheStabilizer in Hydrogen Peroxide Bleaching, Textile Res. J.30, 848-855( 1960).
3.
Cegarra, J., Ribe, J., and Gacen, J., Bleaching of Wool with Hydrogen Peroxide in the Presence of Different Stabilisers , J. Soc. Dyers Colour. 80, 123-129 (1964).
4.
Chester, L., and Woodford, G.C., Some Aspects of Bleaching with Hydrogen Peroxide and with Peracetic Acid, J. Soc. Dyers Colour.74, 531-541 (1958).
5.
Gulrajani, M.L. , and Sukumar, N., Development. Optimisation and Economics of a Single-Stage Preparatory Process, J. Soc. Dyers Colour.100, 21-27 ( 1984).
6.
Indian Standard 200-1969, Method for Determination of Copper Number of Cotton Textile Materials, "ISI Handbook of Textile Testing by Indian Standards Institution," Section E, New Delhi, India. 1982, pp. 336-337.
7.
Indian Standard 1560-1974, Method for Estimation of Carboxylic Acid Groups in Cellulosic Textile Materials (by lodometric Method), "ISI Handbook of Textile Testing by Indian Standards Institution" Section E, New Delhi, India, 1982, pp. 315-317.
Shenai, V.A. , Nighojkar, P.D., and Nanda, A.K., Use of a Nonionic Detergent in Peroxide Bleaching of Cotton, Textile Dyer Printer12 (1), 29-32 (1978).