Er-III Optical Brightener/Fluorscent Brightener 199: 2

Er-III Optical Brightener/Fluorscent Brightener 199: 2. High Purity Grade: Purity reaches 99.31%, exceeding the minimum requirement of 99.0%. Strong Fluorescence: Provides excellent whitening performance and brightening effects. Excellent Fastness: Features superior fastness to sublimation for durable color. Versatile Application: Suitable for polyester, acetate, nylon fibers, and whitening plastics. Environmental Compliance: Product meets environmental protection standards. Consistent Quality: Impurities controlled at 0.35% and moisture at 0.48%. Flexible Payment: Accepts LC and T/T payment terms for international trade. Fast Delivery: Off-season lead time within 15 workdays.