Polyester Optical Brightener ERN250

Chemical Name:1.2 di(5-mythyl-benziazolyl)ethylene C.I. NO.:135 Specification Appearance:gray lightly liquid Ion:Non-ionic PH value:6.0-8.0 Activeness content(%):7.0-8.0 Applications: It has excellent fastness to sublimation,good purity white shade and good whiteness in polyester fiber or fabric. It is suitable in the polyester fiber ,as well the raw material of making paste form brightening agent in textile dyeing. Usage Padding process Dosage: PF 3～7g/l for pad dyeing process, procedure: one dip one pad( or two dips two pads, pick-up: 70%)  →drying→ stentering(170～190℃30～60seconds). Dipping process PF:0.3～0.7%(o.w.f) liquor ratio:1:10-30 optimum temperature: 100 or 120℃ optimum time :30-60min PH value:5-11(opt acidity) For getting the optimum effect for application,please try on suitable condition with your equipments and choose the suitable technique. Please try for compatibility,if using with other auxiliaries. Package and Storage 1. 25KG drum 2. Store the product in a cool, dry, well-ventilated area away from incompatible materials.