Optical Brightener ER-II

Purity 99%: Optical Brightener ER-II with purity 99% is used in polyester fiber processing, where it delivers superior whitening effect and color brightness uniformity. Melting point 230°C: Optical Brightener ER-II with melting point 230°C is used in high-temperature textile extrusion, where it ensures thermal stability and consistent performance. Particle size ≤10 μm: Optical Brightener ER-II with particle size ≤10 μm is used in plastic masterbatch production, where it promotes homogeneous dispersion and enhanced optical clarity. Viscosity grade low: Optical Brightener ER-II of low viscosity grade is used in paper coating applications, where it enables smooth mixing and uniform surface gloss. Stability temperature 220°C: Optical Brightener ER-II with stability temperature 220°C is used in polypropylene molding, where it maintains fluorescent intensity after thermal processing. Molecular weight 600 g/mol: Optical Brightener ER-II with molecular weight 600 g/mol is used in detergent formulation, where it increases washing efficiency by improving fabric luminance. Solubility in water moderate: Optical Brightener ER-II with moderate water solubility is used in aqueous ink production, where it enhances print brightness and sharpness. Light fastness grade 7: Optical Brightener ER-II with light fastness grade 7 is used in outdoor plastic goods manufacturing, where it preserves whiteness under prolonged UV exposure. pH stability 4–10: Optical Brightener ER-II with pH stability 4–10 is used in textile dyeing processes, where it remains effective across a wide pH range for reliable performance. Thermal decomposition point 260°C: Optical Brightener ER-II with thermal decomposition point 260°C is used in PET resin compounding, where it avoids yellowing during high-temperature extrusion.