Blue Light Bleaches Yellow Stains: A Sustainable Solution

Researchers have developed an environmentally friendly method for removing yellow stains from clothing using high-intensity blue LED light. This method utilizes blue light and ambient oxygen, eliminating the need for harsh chemical oxidants. It effectively removes stains from sweat, orange juice, tomato juice, and more, even on delicate fabrics like silk. Tests showed blue light significantly outperformed hydrogen peroxide and UV light in stain removal without fabric damage. While promising, further testing is needed before commercialization to ensure safety and colorfastness.