Optical Brightener Agent

Synonym name:  Optical brighteners are sometimes called optical brightening agents (OBAs), fluorescent brightening agents (FBAs) or fluorescent whitening agents (FWAs).

Mechanism: Optical brighteners are colorless to weakly colored organic compounds. When present on a substrate, optical brighteners absorb primarily invisible ultraviolet light in the 300-400 nanometer (nm) range and re-emit in the visible violet-to-blue fluorescent light to yield a brighter, fresher appearance. They are designed to brighten colors or mask yellowing in plastics, lacquers, paints, inks, photo-processing solutions, and fibers.   What to know more? Click to view the Overall Introduction Of Optical Brightener including mechanism, testing and market information, and how to choose an optical brightener for different applications.