作者: Peter Margolin
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摘要: A process for treating fabric and particularly indigo dyed to change its color a desired shade or cast contacts the with an aqueous solution containing chlorine-providing compound amount of bromide salt and/or iodide salt. The bleached can be controlled by adjusting ratio in relation concentration chlorine providing pH solution. In one embodiment, is sodium hypochlorite bromide, potassium iodide, mixtures thereof. combination produces gray denim compared blue conventional bleaching reduces bleach normally required attain shade.