Optical Brightener 4BK

C.I.113     CAS NO.12768-91-1

Appearance: Light yellow uniform powder

Color light: Blue purple light

Performance and characteristics

1. Has good fluorescent whitening effect, strong whiteness enhancement ability, and bright color light.  
2. Not sensitive to light, with relatively stable chemical properties.  
3. Capable of withstanding weak acids, alkalis, hydrogen peroxide, and perborates, suitable for alkaline oxygen bath processing technology, and also suitable for pad dyeing process.  
4. Has good washing resistance.

purpose

Suitable for whitening cotton, polyester cotton blended fabrics, and cotton blended fabrics.