Optical Brightening Agent OB With Better Price 

        Our product- optical brightener ob, ob-1 is particularly suitable for PVC and polystyrene whitening products, but also for other thermoplastics and coatings, inks, synthetic fibers, such as brightening. We have exact inventory plans to guarantee stable supply. We have over 10 years` experience of chemical logistics and dangerous chemical managers with specially trained, which ensure the safety and right of chemicals, timely logistics.          Optical brightener OB (FBA 184) is a yellow-green crystalline substance that is insoluble in water and has stable performance. Its maximum absorption spectrum wavelength is 374nm, and it has strong fluorescence with an emission wavelength of 434nm. High whitening intensity with strong fluorescence. The use of a wide range of various plastic products can be used. Mostly used in the brightening the products of synthetic fiber and plastics, it is widely…