OPTICAL BRIGHTENER 4BK Powder
High Substantive OBA for Cellulosic fibres & its Blends
4BK Powder is a fluorescent brightener for Cellulosic fibres & its blends. It imparts an excellent bluish whiteness on the treated fabrics. It can be applied by exhaust application.
Chemical Nature : Stilbene Derivative.
Ionic Nature: Anionic
Appearance : Light Greenish Yellow Color free flowing Powder
Compatibility: Compatible with Anionic & Nonionic ProductsSolubility : Limited Solubility in cold water (Hot water &
addition of little quantity of Sodium Carbonate is recommended)
pH Stability during application: 6-10