optical brightener VBU

Product Description

OPTICAL BRIGHTENERS VBU Chemical structure: ***** *4 Ionic character: anionic Main Physics Chemistry Indexes: 1. Appearance: slight yellow uniform fine granule or powder. 2. Solubility: Dissolves with ease in lukewarm water Giving a faintly bluish fluorescent solution 3. Fastness: The whiteness imparted by VBU on fiber is fast to light chlorine, acid-alkali, Perspiration and heat 4. PH of 1% solution: approx 8.0 5. Strength: **0%±3 Application: Textiles: In open vessels /tanks: the material is treated for *0 minutes at room temperature in bath containing 0.*5%*2% optical brightener VBU calculated on weight of the goods to be treat. An addition of ***0 gms/litre of glaubers salt help in better exhaustion On jiggers & winches:the material is treated for **6 ends on jigger or ****0 minutes on winches at room temperature in a bath containing 0.***0.3% brightener VBU. An addition of 5 gms/litre o f glaubers salt help in better exhaustion Padding: The material is padded with solution of 0.**0.4gms/litre of brightener VBU at room temperature. The concentration of solution depends on the nature of the fabric and degree of whiteness required. It is advisable to maintain the concentration of brightener VBU in padding mangle trough throughout the process. Packing: As customer requires