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    Optical Brighteners Current Position: home > Optical Brighteners

    Introduction:

    4BK is a stilbene triazin disulfonic sodium class optical brightener suitable polyester, polyest-cotton blends especially for

    high temperature impregnation process.

    Details:

    Appearance: yellow-green powder.

    Ionicity: anionic

    Fluorescent intensity:100±1equivalent to standard sample

    Properties

    4BK has goo resistance to acid and alkali, resistance to hydrogen peroxide. Anionic type Brightener, it can be used along with anionic surfactant or nonionic surfactant in one bath.

    Application: 4BK is widely used in polyester, polyest-cotton blends especially for high temperature impregnation process.

    Method of usage:

    Exhausting Whitening Process: 4BK: 0.05-0.3% (o.w.f),     Bath Ratio: 1:5-30,

    Dyeing Temperature: 40°C-100°C;

    Padding Process: 4BK: 0.5-3g/l,  Residue Liquor Ratio: 100%,

    Please Noted: above recommended loading can be a reference. Exact loading must be

    determined by compositions of the specific requirement.

    Packing: 50kg fiber drum or as customers’ requirement.

     
     
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    -PXE
        Intermediates
    -Biphenyl
    -Diphenyl ether
    -BCMB
    -p-Toluic acid
    -2-Chlorothioxanthone
    -Terephthalaldehyde
    -Cyclohezane Carboxylic Acid
    -2-aminophenol
    -m-Toluic acid
    -o-Toluic acid
    -4-tert-Butylbenzoic acid
    -4-methylbenzene methanol
    -3-Chloro-2-methylaniline
    -2-Trifluoromethylthioxanthone
    -Decahydronaphthalene
    -p-Toluoyl Chloride
    -Benzaldehyde-2-sulfonic acid sodium
    -p-Tolunitrile
    -m-Tolunitrile
    -o-Tolunitrile
    -1,2,3,4-Tetrahydronaphthalene
    -4-Formyl Benzoic Acid
    -1,4-Bis(chloromethyl)benzene
    -4-Benzyloxycinnamic acid
    -4-tert-Butylbenzoic acid
    -1,2,3,5-Tetraacetyl-B-D-Ribofuranose
    -m-Phthalaldehyde
    -3,4-Dihydroxybenzoic acid
    -4,4'-Dihydroxy benzophenone
    -P-Terphenyl
    -Salicylaldehyde
    -4-ADPA
    -o-Phthalaldehyde
    -Sulfolane
    -1-Methylpyrrolidine
    -4-Fluorocinnamic acid
    -Sulfobutyl Ether-β-cyclodextrin
    -2-Iodobenzoic acid
    -4,4'-Oxydianiline
    -Isophthaloyl dichloride
    -Terephthaloyl Dichloride
    -o-Toluoyl Chloride
    -m-Toluoyl Chloride
    -2,4-Dihydroxy benzophenone
    -2,5-Dihydroxy toluene
    -2,6-Difluoroaniline
    -2,6-Difluorobenzamide
    -2,6-Difluorobenzonitrile
    -Nitrogen trifluoride
    -1,3-cyclohexanedione
    -2-Bromo-6-Cyanopyridine
    -2-Bromophenyl Methyl Sulfide
    -2-Bromophenyl Methyl Sulfone
    -2-Bromophenyl methyl sulfoxide
    -2-Chloro-5-nitro benzoic acid
    -2-Chloro-6-nitrotoluene
    -2-Methylamino-5-chlorobenzophenone
    -5-chloro-2-methyl aniline
    -2-chlorobenzaldehyde
    -4,4'-Dibromobiphenyl
    -4,4'-Diiodobiphenyl
    -4,4'-Bis(methoxymethyl)- 1,1'-Biphenyl
    -4,4'-Bis(hydroxymethyl)biphenyl
    -Biphenyl-4,4'-dicarboxylic Acid
    -p-Terphenyl
    -4,4'-Dimethylbiphenyl
    -4,4'-Biphenyldicarboxaldehyde
    -4-Biphenyl acetic Acid
    -4-Hydroxy-(1,1'-biphenyl)-4'-carboxylic acid
    -2-Cyano-4'-methyl biphenyl
    -4-Cyanobiphenyl
    -4-Biphenylcarboxaldehyde
    -4-Phenylbenzoic acid
    -4-Bromophenyl methyl sulfone
    -4-Bromophenyl methyl sulfoxide
    -4-Chloro benzophenone
    -4-Hydroxy benzophenone
    -4-Hydroxycinnamic acid
    -4-Hydroxycoumarin
    -4-(methylamino)benzoic acid
    -4-Nitroaniline
    -4,4'-Stilbene dicarboxylic acid
    -2- Methylnaphthalene
    -BIS(pinacolato)diboron
    -Coumarin
    -2-Cyanobenzyl chloride
    -Ethyl-(s)-4-chloro-3-hydroxybutyrate
    -Fluorobenzene
    -Trifluoromethanesulfonic anhydride
    -Trifluoromethanesulfonic acid
    -2,6-Dichlorotoluene
    -o-tert-Butylphenol
    -O-Methyl benzoquinone
    -4-Acetylbiphenyl
    -p-tert-Butylphenol
    -2,6-DI-TERT-BUTYLPHENOL
    -2,4-Di-tert-butylphenol
    -7-APRA
      Products 
        Optical Brighteners
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    -FWA KSN(C.I. 368)
    -FWA EBF(C.I.185)
    -FWA KCB(C.I. 367)
    -FWA PF(C.I. 135)
    -FWA ER-I(C.I. 199)
    -FWA ER-II(C.I. 199:1)
    -FWA ER-III(C.I. 199:2)
    -FWA CBS-X(C.I. 351)
    -FWA DMS(C.I.71)
    -FWA CXT(C.I.71)
    -FWA BA (C.I. 113)
    -FWA 4BK(C.I. 113)
    -FWA BBU(C.I.220)
    -FWA APC(C.I. 220)
    -FWA VBL(C.I. 85)
    -FWA MST(C.I. 353)
    -FWA BAC(C.I. 363)
     

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