Monthly Archives: May 2010

Optical Brighteners and Optical Brightener Uses

May 8, 2010 |

Optical Brighteners Optical brighteners are dyes that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm). A white surface treated with Optical brighteners can emit more visible light than that which shines on it, making it appear brighter. The […more]