Fluorescent brightener VBL

Quality index:
1, Appearance: light yellow even powder
2, Intensity: 100%±2 of standard
3, Moisture: ≤5%
4, Fineness: (residue on 150 sieve)≤5%
5, Water insoluble impurities: ≤0 .5%

Uses:
1, for the whitening of cotton, polyester fabric . 
2, whitening of cellulose fiber fabric in discharge printing. 
3, brightening of light-colored cellulose fiber fabric. 
4, whitening of paper and detergent .

Method: 
1, whitening of dip dyeing 
VBL: 0.05 ~ 0.3% (owf); anhydrous sodium sulfate: 0-1 0g/L. 
Bath ratio: 1: 5-30, pH value 7-9, temperature: 40-100 °C, time: 20-40 minutes, pre-bake, setting. 
2, whitening of of padding dye 
VBL: 0.5-3g/L, pH value 7-9, vehicle speed is generally 30-40 m/min.

Packing, storage and transportation:
25kg , 50kg cardboard drum. Kept in cool and dry place, avoid light.

Cautions:
1, reference only.
2, please contact us for more details.