Optical brightener is likewise called Fluorescent Whitening agents. These Masterbatches work through a fluorescent system that retains light in the UV range and emanates light in the blue region of visible range to yield a more brilliant and brighter appearance. These agents are used to hide the natural yellowing of the plastics and give a better initial Color. We have developed our Optical Brightener Masterbatch specifically for a multitude of polymer and resin systems to ensure you the best possible performance.