Optical Brightener are compound that fluoresce under UV light, reemitting in the blue region of the spectrum. OB are used to produced material that required "extra-whitness". It used in Blown Film Industries to enhance brightness also can use in Filaments, All extruded products, Jabhala, In few rotomoulding applications
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Features:-
Improves optical properties
Require Minimum doses
Smooth, Glossy surface
Imparts bluish – purple tint