Optik B2
It is an optical brightener with tetra sulphonic stilbene derivatives based on optical brighteners for cotton and its various blends. Optik B2 is a cold water soluble optical brightener for a bluish-white tone for cellulosic fibres and its blends. Optik B2 is suitable for exhaust and padding applications. It has a wide range pH stability of 4 to 12. 
Optik RL
An optical brightener with tetra sulphonic stilbene derivatives based on a liquid optical brightener for cotton and its blends. Optik RL liquid is an optical brightener that gives a milky to bluish tone to cellulosic material and its blends. Optik RL liquid is suitable for exhaust and padding application as well as a wide range pH from 4 to 12.
Optik Indigo
An optical brightener with disulphonic stilbene derivatives based on an optical brightener for cotton and its blends. Optik Indigo is a cold water-soluble optical brightener that gives a bluish-violet white tone to cellulosic fibre and its blends. Optik Indigo is suitable for exhaust applications as well as a wide range pH from 7 to 12.