Treated cotton cleans itself when exposed to sunlight

For some time now, we’ve been hearing about the benefits of drying our laundry outside on the clothesline. We save money and energy by not running the dryer, the sunlight kills germs, and we don’t run the risk of generating harmful dryer emissions. In the future, however, we might also end up washing our clothes by hanging them outside – scientists in China have successfully used sunlight to remove orange dye stains from cotton fabric, that was treated with a special coating.

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