Fluorescent Whitening agents are also called Optical brightener.
These additives are used in order to :
Brighten colors
Mask natural yellowing of plastics
Improve initial color
Get brilliancy of colored or black pigmented articles
These Fluorescent whitening agents work via a fluorescent mechanism which absorbs light in the UV spectrum
and emits light in the blue region of visible spectrum to yield a brighter and fresher
appearance.
