For textile manufacturers striving for the pinnacle of fabric whiteness and vibrancy, NINGBO INNO PHARMCHEM CO.,LTD. introduces OBA 4BK, recognized as the definitive solution for advanced fabric whitening. As a leading manufacturer of high-performance chemical auxiliaries, we understand the critical demand for products that not only meet but exceed industry standards.


OBA 4BK, an Optical Brightening Agent, is a powerful Fluorescent Whitening Agent designed to impart a brilliant white maximum to cellulosic fibers, polyamide, and their blends. Its gray-greenish powder form and stilbene derivative chemical structure ensure superior performance in enhancing fabric aesthetics. When manufacturers look to buy OBA 4BK, they are investing in a product known for its exceptional washfastness. This characteristic guarantees that the fabric maintains its radiant whiteness even after numerous washes, crucial for consumer satisfaction and product longevity.


Our OBA 4BK is engineered for high-efficiency, featuring very high bath exhaustion and excellent solubility in water, optimizing the dyeing and finishing processes. This efficiency translates into cost savings and increased productivity for manufacturers. It also boasts good stability to alkalis, peroxide, and electrolytes, making it incredibly versatile for various textile treatments. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing industrial fabric brightener purchase options that offer both quality and value. We are proud to be among the top manufacturers of OBA 4BK, ensuring you receive a superior product at a competitive superior fluorescent whitening price. Partner with us to achieve unmatched brilliance in your textile products.