D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
D06P 3/00 (2006.01) C01B 17/66 (2006.01) D06L 3/10 (2006.01) D21C 9/10 (2006.01)
Patent
CA 2130378
Phosphate-free reduction bleaching formulation Abstract A phosphate-free reduction bleach formulation comprising (a) a reduction bleaching agent and (b) a bleach stabiliser selected from (b1) a citric acid derivative, (b2) a homo- or copolymer of an ethylenically unsaturated mono- or dicarboxylic acid, (b3) a water-soluble magnesium salt and (b4) an alkali metal salt of tetraboric acid. The bleach formulation is suitable for the reduction bleaching of vegetable, animal or synthetic fibres as well as paper. High degrees of whiteness are obtained. The formulation is substantially ecologically compatible.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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