Optical Brightener OB-1

Optical Brightener OB-1 is a diphenylethylene bisbenzoxazole type compound, It insoluted in water and has stable capablity, also it has well heat resistence, sun shine resistence, chlore bleaching resistence and move resistence capablity. It is especially high temperature tolrence, suitable for shaping various kinds of plastics and their products under high temperature. It has an extra ideal whitening effect on polyester fibers as well as pclyester fiber-containing fabricsincluding polyester-cotton blend fabric It can be used for whitening polyester melt, be used in ABS,PS,HIPS,PA,PC,PP,EVA and hard PVC, it also can be used in the whitiening of polyester short fiber and filament, polypropylene fiber, polyamidefiber and Nylon. Mixed with this product, polyester, bottle material and cuttlng flake will have better bleaching effect than before. also different recyceled materials will have better similar color.
USEAGE:
Thoroughly dispered the optical brightener OB-1 in all the polymers. if any ultralviolet absorption agent is added, the dosage of optical brightener OB-1 will be adjusted corresponding.
DOSAGE:
For transparent 0.0025-0.005% opaque 0.01-0.03% max
PACKAGING: Packaged in iron bucket or cardboard barrels lined with two double plastic bags, 25kg or 50kg each.