Optical Brightener Agent

For lower temperature with different shade

For higher temperature with different shade

Lower temperature below 100℃

Resist to sunlight, higher fastness 

Highest fastness to sun can reach to 3 and good whiteness in cotton OBA

Best optical brightener for towel 

Good affinity, have excellent acid and alkalis stability, and good stability to peroxide beach 

Powder and liquid, good washing whiteness