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.
