Finishing auxiliary series
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Fluorescent brightener VBL

Use: This product is used in the cellulosic fabric to brighten, the brightening of paper.
Nature: Appearance: light yellow powder
Fluorogenic tone: blue and green light is a little purple
Ionization: anion
PH of dyeing liquor:  PH 8-9 is the most suitable
Stability: Acid proof to PH =6, Alkali proof to PH =10
Brighten the intensity:  ≥standard product 100%
The content of moisture: ≤5%
The content of the insoluble matter: ≤0.5%
Quality guarantee period: sale and keep in shade for 24 months
Use the method:  general consumption is 0.1% - 0.3% or 0.3-3g/l
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