National Dyechem manufactures Optical Brightening Cum Boosting Agent. National Dyechem also manufactures variety of Speciality Chemicals and Dyeing and Finishing Products. The Optical Brightening Cum Boosting Agent, under the brand name Teriwhite, is an optical brightening agent which increases the brilliancy and fluorescence of conventional polyester whiteners to produce exceptionally brilliant whiteness. The Optical Brightening Cum Boosting Agent, is most effective when applied by the pad-dry thermofix process and is suitable at temperature of 170-220 degree C hence it can be used with almost any polyester whitening agent. The brilliancy and tone obtained by it is very fast to washing and sublimation and has a light fastness of 6-7. The Optical Brightening Cum Boosting Agent is available in reddish tone, bluish tone and extra concentrated blue tone.
