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P.W.:
Fluorescent Whitening Agent ER
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Fluorescent Whitening Agent FP
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Fluorescent Whitening Agent KCB
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Fluorescent Whitening Agent VBU
  Today is:
Fluorescent Whitening Agent WS(FBA52)
Properties:
Fluorescent Whitening Agent WS is a compound of coumarin type.The product has an appearance of white powder and similar to the foreign brands such as Uvitex SWN,Leucophor WS,Blankophor FBO.It is solubility:soluble in organic solvents such as ethanol,methanol and glycol,and soluble in acidic water bath.
Applications:
This whitening agent is mainly used for whitening wool,natural silk,Jinlun,acetate fiber and triacetate fiber.It can be also used for whitening cotton,acrylic fiber,and cellulose fiber of resin.
Directions for use and dosage:

Adjust the PH volume to 3-5 with vinegqr acid,30-50°C,bath ratio:1:20-40,dissolve WS with a dosage of 0.05-0.35%,then put into the wet wool product,make the temperature up to 60-70°C, with 30 min,Lower temperature,wash and dry.

Specifications:
Item Indices
Appearance white powder
Melting point 65-70°C
Purity ≥98%
Moisture content ≤5%
Packaging and storing:

Packaged in plastic barrels,25kg or 50kg each.Stored by sealing it airtight in cool place.

 
 
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