Optical Brightening Agent 4bk 28 For Textile

Basic Info.Model NO.:4BK 28Certification:SGSColor:Light YellowKind:Textile BrightenerAppearance:PowderApplication:Dying Auxiliary, Textile AuxiliaryIonicity:AnionicTrademark:linebonPackage:Drum/Plastic BagSpecification:SGSOrigin:ChinaProduct Descriptionoptical brightener 4BK for textile C.I.87  cas 12768-91-1Main Ingredients: stilbene triazine typeThe maximum UV absorption wavelength: 350 nmAppearanceLight yellow powderIonicityAnionicWater insoluble≤0.5%Water≤5%Fineness(180mesh)≤10%Characteristics:High whiteness and brightness. Shade can be shift to red, blue, violet according to clients' request. stable chemical properties.Excellent fastness to acid perborate and peroxide.Application:For whitening of cotton and cotton/polyester fabrics.Usage:Exhaust dyeing method Rate of use: 0.1-0.8%(o.w.f), bath ratio: 1:10-30Process: 90-100°C×30-40min→wash→bake.One-bath method Rate of use: 0.2-0.8%(o.w.f), hydrogen peroxide: 5-15g/LBleaching assistant: 0.5-2g/L, NaOH: 1-5g/LScouring agent:0.5-1g/L, bath ratio: 1:10-30Process: 90-100°C×30-40min→wash→bake.Packaging & Storage: 25kg or 50kg iron drum or paper drum lined in plastic bag, transport as non-hazardous.Why us :1. High quality under strict QC/QA system with GMP factory price and best service. 2. Fast and safe delivery with secure and discreet shipment.3. Double check before delivery to make sure correct.4. Third-party Inspection5. Providing complete services with our resource integration, we can thus create more competitive advantages for you!Thank you for ordering and hope you enjoy your purchase here. Your comments are always welcomed and very important in our long-term business corporation.FREE SAMPLES can be sent for your evaluation!Contact me now for further business :-)