Synthetic fibers, including polyester, nylon, and acetate, are cornerstones of modern textile manufacturing due to their durability and versatility. However, achieving and maintaining optimal whiteness in these materials often requires specialized solutions. NINGBO INNO PHARMCHEM CO.,LTD. is proud to offer Fluorescent Whitening Agent 199 Optical Brightener ER-I, a high-performance FWA for synthetic fibers engineered to deliver unparalleled brightness and color stability.


This advanced stilbene-type brightener, presenting as a yellow-green crystalline powder, ensures excellent light and heat resistance, crucial for the rigorous processing of synthetic fibers. Its unique ability to absorb UV light and re-emit it as a brilliant blue-violet fluorescence effectively masks any inherent yellowness, yielding a clean, bright appearance that stands out. For manufacturers seeking a reliable nylon optical brightener supplier, ER-I offers superior compatibility and non-reactivity with common processing agents, ensuring seamless integration into your production lines.


NINGBO INNO PHARMCHEM CO.,LTD. understands the critical need for consistent quality. Our Fluorescent Whitening Agent 199 is produced with over 98% purity, guaranteeing high stability and good weatherability. This means the exceptional whiteness achieved in polyester, nylon, or acetate fibers remains vibrant and true, resisting degradation over time. Furthermore, its low addition rate makes it a cost-effective choice for large-scale operations.


Whether you're looking for a polyester optical brightener to buy or require a comprehensive solution for diverse synthetic fibers, NINGBO INNO PHARMCHEM CO.,LTD. is your trusted partner. With ER-I, enhance the aesthetic appeal and market value of your synthetic fiber products, ensuring they meet the highest standards of brilliance and durability.