OPTICAL BRIGHTNERS
Optical brighteners are chemical compounds that absorb light in the ultraviolet and violet region of the electromagnetic spectrum, and re-emit light in the blue region.
They give “whitening” effect to the textile. They are used to make the fabric look cleaner and brighter than it would otherwise appear to the naked eye
OPRICAL BRIGHTNERS
Cottobright NC
Optical brightener for cellulose & woven.
Cottobright ACR
Optical brightener for cellulosic fibers.
Cottobright MS-5
Gives very good brightness and optical effect
Cottobright ESR
Optical brightener for Polyester & blended fibers.