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    Optical Brighteners Current Position: home > Optical Brighteners

    Introduction:

    ER-II is a bisdiphenylethylene class optical brightener mainly used in polyester fiber.

    Structural Formula:

    Details  :
    CAS:13001-38-2

    Molecular Formula: C24H16N2
    Molecular Weight : 332

    Appearance: Pale yellow powder
    MP: 184-186
    Purity: ≥99%
    Properties:

    ER-II is a whitening agent for polyester. It is non-toxic, odorless, non-ionic and soluble in most of organic solvents. Product Whitened by ER has a natural pure white appearance. Being stable in chemical properties and characterized by strong high-temperature resistance and light stability, ER-II has a
    higher whitening performance than ER-I. It is one of the most ideal whitening agents generally accepted internationally for polyester fiber
    Applications:

    It is widely used in polyester, acetate and nylon fibers and has good whitening effect on plastics such as PE,PP and PVC. With strong fluorescence, high whitening performance and excellent fastness to sublimation. Lower luminance temperature than ER-1, higher whitening performance than ER-I

    Method of usage:

    1pad-dyeing hot melt process: The recommended loading concentrations 14g/L

    technological processpadding----precure(100)----postcure185--200,20-30seconds, impregnation liquid pH is 4~5.
    2
    high temperature dyeing. The recommended loading concentrations 0.10.4%(o.w.f), bath ratio11030; dyeing temperature120130,pH: 510depending on substrate, processing conditions, and long-term stability requirements.

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

    determined by compositions of the specific polymer system

    Packing: 25kg complex paper bag or fiber drum.

     
     
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        Heat transfer fluid
    -RFCTHERM-400
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        Intermediates
    -Biphenyl
    -Diphenyl ether
    -BCMB
    -p-Toluic acid
    -2-Chlorothioxanthone
    -Terephthalaldehyde
    -Cyclohezane Carboxylic Acid
    -2-aminophenol
    -m-Toluic acid
    -o-Toluic acid
    -4,4'-Biphenyldicarboxaldehyde
    -4,4'-Dimethylbiphenyl
    -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
    -Fluorobenzene
    -o-Fluorotoluene
    -p-Fluorotoluene
    -m-Fluorotoluene
    -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
    -N4-Acetylcytosine
    -Diacetylacyclovir
    -5'-Cytidylate Monophosphate
    -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
    -FWA OB(C.I.184)
    -FWA OB-1 (C.I.393)
    -FWA FP-127(C.I. 378)
    -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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