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Fluorescent Whitening Agent ER
Fluorescent Whitening Agent KOB
Fluorescent Whitening Agent FP
Fluorescent Whitening Agent OB
Fluorescent Whitening Agent OB-1
Fluorescent Whitening Agent KCB
Fluorescent Whitening Agent KSN
Fluorescent Whitening Agent PF
Fluorescent Whitening Agent EBF...
Fluorescent Whitening Agent NT-1
Fluorescent Whitening Agent NT-5
Fluorescent Whitening Agent DT...
Fluorescent Whitening Agent NT-3
Fluorescent Whitening Agent VBL
Fluorescent Whitening Agent RSB
Fluorescent Whitening Agent VBA
Fluorescent Whitening Agent NT-8...
Fluorescent Whitening Agent VBU
  Today is:
Fluorescent Whitening Agent VBA(FBA210)
Properties:
Fluorescent Whitening Agent VBA has very good water solubility.Its water solution is anionic and has a blue fluorescence.This whitening agent can be used in a bath together with almost all auxiliaries other than cationic surfactant and cationic dyes,and has very good whitening effect on cotton fabric even under strong alkalic or acidic conditions.
Bath formulate(for reference):
Recipe A(one-bath process)
Scouring agent 2g/l Penetrant 2g/l
Stabilizer 2g/l Caustic soda(100%) 6g/l
H2O2 12g/l Whitening agent VBA 0.3% O.W.F
(Bath ratio:1:15; boil out the goods being whitened at 95-98°C for 60 minutes, then rinse and dry it.)
Recipe B(used together with resin in padding bath)
Resin 2D 64g/l Whitening agent VBA 3g/l
Citric acid(10%) 5ml/l Penetrant and softener some
Catalyst 6g/l - -
(Exhaust twice and pad twice;adjust the PH value to 5-6; dry the whitened goods at 80-100°C,cure it at 140-180°C,then open-wash it for 20-30 seconds and dry it again.)
Specifications:
Item Indices
Appearance light yellow even-sized powder
E Value 100% of the standard agent
Hue slightly different from the standard agent
WCIE (whiteness different between VBA and the standard agent) ≥-3.0
Moisture content ≤5%
Content of insoluble impurities ≤0.5%
Fineness(quantity of residue on sieve having 180um meshes) ≤10%
Packaging and storing:

Packaged in cardboard barrels,25kg or 50kg each.Stored in cool and dry place.

 
 
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