Fluorescent Whitening Agent OB 

I. Physical and Chemical Properties: 
This product is light yellow uniform powder, light tone for the clearance janthinellum can dissolve more than 80 times the volume of soft water in the case of anions, and acid degree of PH6 ~ 11, PH8 ~ 9 appropriate amount of dye dissolved. Hard water-resistant to 300PPM, resistant to 0.75% ionic travel insurance powder stable, but intolerant of copper, iron heavy metal ions, with anionic and nonionic surfactants, anionic dyes such as direct acid mix, but not with the cationic dye and the active agent , equivalent to dissolving the use of synthetic resin. 
2. Product use: 
Mainly used in whitening of cotton plant fiber, Zengliang, at the same time for the paper-making, synthetic detergent, paint, such as whitening industry. 
3. Product performance standards: GB10661-96 GB
    1, Appearance: light yellow powder evenly:
    2, intensity points: 100 points
    3, close to light ---- Micro:
    4, brightness value and the standard deviation of brightness values ≥ -2:
    5, water insoluble matter ≤ 0.5%:
    6, water content ≤ 5%:
    7, the fineness of 100 mesh sieve residue ≤ 10%: 
4. Product applications: 
Paper in the process of whitening ingredients: 

Process in the production of fluorescent whitening agent VBL demand for its water directly or after dissolution, into the slurry in a row, but it should be in the use of alum or cationic agent is added before, with a whitening agent to the fiber medium to high affinity , whiteness was the time to keep up with the dye and the consistency of the pulp, paper pulp production systems of the highest consistency, by adding the best whitening results available Brightener. 
5.Products, and the amount of: 
Fluorescent Brightener VBL pulp dry weight ratio for the general as follows: 0.15 ~ 0.4%, the largest amount of <0.6%. 
The use of whitening agent, as well as the value of whiteness Protoplasmic increases puree should be in terms of the level of brightness, the user can in accordance with process requirements and quality requirements of paper the use of ingredients. 
6. Packaging and storage: 
This product is packed with drum or drums, the conventional amount of 25kg / barrel, it can be packaged in accordance with user requirements. Storage should be placed in a cool dry place to prevent damp. Storage period of three years.

7.Image of products:

Fluorescent Whitening Agent OB