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Opitcal brightener BA

Opitcal brightener BA

MOLECULAR FORMULA: C40H42N12O10S2Na2
MOLECULAR WEIGHT: 960.95 (As International relative Atom Mass 1991)
MAX UV ABSORPTION SPECTRUM: 348 nm
Specs: appearance: light yellow uniform powder
       Fluorescent Strenghth (equivalent to the standard sample): 100
      
Color Shade: Similar to Slightly Different
      
Moisture content: 5% max
      
Content of water-insoluble impurities: 0.5% max
      
Fineness (residual content passed through 180μm-pore sieve ): 10% max

PROPERTY:
    The product is readily soluble in water, acid-resistant, alkali-resistant, and has much better whitening effect than VBL at pH 4.5-7. Belonging to anionic type, it can be used in the one bath with anionic or nonionic surfactants.
APPLICATION:
    Mainly applied to whiten paper pulp, surface sizing, coating, and also applied to whiten cotton, linen and cellulose fiber as well as cellulose fabrics, and to brighten light-colored cellulose fabrics.
USAGE:
    1. Being used in paper-making industry, add them into the paper pulp, coating solvent and surface gluing solvent after dissolving with the 20 times water.usual dosage: 0.1-0.3% on dry pulp or dry dope.
    2. When whitening of the cotton, hemp or cellulose, directly adding the fluorescent brightener dissolved with water into the dye vat, the dosage:0.08-0.3%, bath ratio:1:20-40, the dying temperature:60-100

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