1. Optical Brightener OB-1 is suitable for whitening polyester fiber, nylon fiber, polypropylene fiber and other chemical fibers.
2. Suitable for whitening and brightening of polypropylene plastic, rigid PVC, ABS, EVA, polystyrene, polycarbonate, etc.
3. Optical Brightener OB-1 is suitable for adding in the conventional polymerization of polyester and nylon.
4. Especially suitable for whitening of plastic products molded at high temperature.