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Is there a fluorescent whitening agent in the laundry ...- laundry soap powder fluorescent powder fluorescent powder washing soap powder ,Must use efficient laundry detergent soaked in advance, rub!EVA dress dirty, when the mother really can not afford to lose that person! However, every time the clothes washed clean as new, and will be anxiousIs there a fluorescent whitening agent in the washing powder?Laundering Problems & Solutions | The American Cleaning ...Failure of a blue coloring in detergent, laundry aid or fabric softener to dissolve or disperse. If caused by a detergent or powdered laundry aid, add 1 cup (240 ml) of white vinegar to 1 quart (.95L) of water. Use a plastic container. Soak item for one hour; rinse. If caused by fabric softener, rub stains with bar soap, wash.