Two special uses of optical brightener OB

Fluorescent whitening agent OB is widely used in TPR erasers, PVC blinds, PE films and other fields. In addition, it also has two special uses. Today, the editor of Hongyi will reveal to you:

1. After the fluorescent whitening agent OB is dissolved in an organic solvent, it can be miscible in its own inherently light yellow industrial liquid. For example, paraffin, mineral oil, etc., which have a light yellow appearance, can effectively conceal their yellowish color by using a very small amount of optical brightener OB solution. Since optical brightener OB has good light resistance and ultra-high transparency in organic solvents, it is suitable for improving the appearance of most industrial liquids.

2. Fluorescent whitening agent OB can be used to prevent counterfeiting of banknotes. Adding the fluorescent whitening agent OB to the banknote printing oil can make the banknote paper show a blue-purple fluorescent pattern under ultraviolet light. Because the ink formula technology is relatively complex, it effectively increases the anti-counterfeiting effect of banknotes.

For more questions about whitening agents, you can call 0578-7213888 and engineers will answer all your whitening questions one-on-one.