“Whiter than white:” How Does It Work? – Chemistry Blog
Aug 23, 2012·It also makes it possible for the clothing to emit more visible light than is being shined on it, making it appear brighter and whiter. One example of an optical brightener is 4,4’-bis(benzoxazol-2-yl)stilbene. Extended conjugation is a common theme in optical brighteners. Laundry detergent irradiated by UV light via: Wikipedia. And that’s it.