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Optical brightener CHROME OXIDE

Country/Region china
Company Tianjin Ji Guang Import and Export co., ltd
Categories Optical Brightener
Telephone +86-022-58510105
ICP License Issued by the Chinese Ministry
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    Optical brightener CHROME OXIDE

    Optical brightener VBL

    Molecular formula:C36H34N12O8S2NA2
    Molecular weight:872.84
    Molecular Structure:
    1.Main Ingredients:stilbene derivates
    Appearancelight yellow powder
    Fluorescent colorblue-green and micro-purple
    Strengthequal to 100 of the standard
    WhitenessWCIE: -3
    Moisture content5%
    inpurity content insoluble in water0.5%
    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 i
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