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BDS GROUP has made aap prominent mark for itself in the chemical industry since it's in corporation in the year 1995.
OPTICAL BRIGHTNERS
Optical brighteners, optical brightening agents (OBAs), are chemical compounds that absorb light in the ultraviolet and violet region of the electromagnetic spectrum, and re-emit light in the blue region through the phenomenon of fluorescence. These additives are often used to enhance the appearance of colour of fabric and paper, causing a “whitening” effect; they make intrinsically yellow/orange materials look less so, by compensating the deficit in blue and purple light reflected by the material, with the blue and purple optical emission of the fluorophore.
APPLICATIONS/ USES
1. Brighteners are commonly added to laundry detergents to make the clothes appear cleaner. Normally cleaned laundry appears yellowish, which consumers do not like. Optical brighteners have replaced bluing which was formerly used to produce the same effect.
2. Brighteners are used in many papers, especially high brightness papers, resulting in their strongly fluorescent appearance under UV illumination.
Optical brighteners have also found use in cosmetics. One application is to formulas for washing and conditioning grey or blonde hair, where the brightener can not only increase the luminance and sparkle of the hair, but can also correct dull, yellowish discoloration without darkening the hair.
3. Some advanced face and eye powders contain optical brightener microspheres that brighten shadowed or dark areas of the skin, such as “tired eyes”.
