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We are based in Hebei, China, start from 2020,sell to North America(50.00%),South America(50.00%). There are total about 11-50 people in our office.
Description
Optical brightener VBL
| Code: | ||
| Molecular formula: | C36H34N12O8S2NA2 | |
| Molecular weight: | 872.84 | |
| Molecular Structure: | ||
| CAS#: | 12224-16-7 | |
| EINECS#: | NO | |
| Specifications: |
1.Main Ingredients:stilbene derivates
2.Specifications
Appearance light yellow powder
Fluorescent color blue-green and micro-purple
Strength equal to 100 of the standard
Whiteness WCIE: -3
Fineness 5%
Moisture content 5%
inpurity content insoluble in water 0.5%
3.Usage
whiten and brighten fibrin products
1.Dip-dye Whitening
The conditions of VBL’S dip-dye whitening are similar to the direct dye.
For example: cotton cloth dip-dye Whitening
VBL 0.1-0.3% (fabric weight)
anhydrous sodium sulfate:0-20% (plant weight)
Processing conditions, bath ratio 1:20-1: 40,PH 7-9,Temperature:
20 - 40Deg,Time: 20-30 minutes
Drying condition: drying temperature is usually the 70 - 80 Deg
2.Pad dying Whitening
Pad dying fabric whitening usually needs refining bleaching, dechlorination,
drying, speed is generally
rolling liquid rate: 70-100%, temperature: 40 -50 Deg, PH = 7-9
For example: cotton cloth whitening
VBL 0.5-3 g / l,Opened powder 0.25-0.5 g / l,Use:
VBL is mainly used to whiten and brighten white cellulose fabric, paper,
light-colored cellulose fabrics, dial dye printing etc..
4.Package
packed in 25kg cardboard inside double-layer plastic | |
packing & Delivery
Product packaging
We have cooperated with experienced shipping forwarders for many years, they arrange the shipment. No matter by express, by air or by sea, we will track the course of the goods all the way, to make sure goods arrive at you on time and in good condition.
