Bleach composition.

摘要

A low temperature bleach system comprises a peracid precursor system and bromide ions. The bromide ions may be supplied by sodium bromide. A theoretical peracid to bromide equivalent ratio between 2 : 1 and 1 : 2 is preferred, but dye transfer and hygiene benefits are possible with a ratio up to 1 : 32. The precursor system is typically diphthaloyl peroxide or sodium perborate plus tetraacetyl ethylenediamine (TAED). If the perborate is in excess, a scavenger such as catalase should be included. The system may be used as such or incorporated in a conventional detergent base.