Fluorescent whitener for polyester fiber
optical brightener SWN (optical brightener 140) is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. optical brightener SWN (optical brightener 140) also can be used in cotton, plastic and chromatically press paint, and optical brightener SWN added into resin to whiten the fiber cellulose.
Product Details
optical brightener SWN (optical brightener 140)
other name:,fluorescent brightenerSWN,fluorescent whitenerSWN
CAS:91-44-1
Chemical name:7-diethylamino-4-methylcoumarin, 7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one, Methyl-7-(diethylamino)coumarin, Coumarin 1, MDACMolecular formula:C14H17NO2Molecular weight:231.3EINECS:202-068-9The same name:Uvitex SWN; SWR (Uvitex); FBO (Blankophor); VPA (Rylux); LS (Delft Weiss); WNS(Blancol); WN(Kayaphor). Optical Brightener SWN, , Fluorescent Brightener SWN, C. I. 140, Optical Brightening Agent SWN, UVITEX SWN, SWR(Uvitex)Properties:optical brightener SWN(optical brightener 140)is soluble in ethanol, acidic liquor, resin and varnish. In water, the solubility of optical brightener SWN(optical brightener 140)is only 0.006 percent. optical brightener SWN(optical brightener 140)functions by emitting red light and present purple tincture.Specifications:Appearance:White crystal powderSolubility:Dissolve in acid water, ethanol and other organic solventMelting Point:72-74° CAssay:99% min (HPLC)Volatile Content:0.3%maxAsh Content:0.1%maxApplication:optical brightener SWN(optical brightener 140)is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. optical brightener SWN(optical brightener 140)also can be used in cotton, plastic and chromatically press paint, and optical brightener SWN(optical brightener 140)added into resin to whiten the fiber cellulosePackage:Packing in 25kg fiber drum or according to the requirement of the customers.
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