Optical brightener VBL

Product Details

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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 generally30-40 m / min or so, two Baptist 2 rolling, 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