Optical whitening agent
- Organic Optical Whitening Agents, otherwise called as Optical Brightening Agents are organic dyes that absorb ultraviolet light and re-emit that light in the blue part of the visible spectrum.
- The result is that whitening and brightening of the media into which they are incorporated.
- Application of Optical brightening agents (OBA) are it is commonly used in the pulp and paper industry, and they can be applied to different kinds of pulps, including high-yield pulp (HYP) and Kraft pulps.
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