As the textile industry increasingly prioritizes environmental responsibility, the demand for sustainable chemical solutions has never been higher. NINGBO INNO PHARMCHEM CO.,LTD. is at the forefront of this shift, offering OBA 4BK, an Optical Brightening Agent that aligns with eco-friendly manufacturing practices. Our commitment to sustainability is underscored by the fact that OBA 4BK holds the prestigious OEKO-TEX ECO PASSPORT Certification, affirming its safety and environmental compatibility.


OBA 4BK, a high-performance Fluorescent Whitening Agent, delivers brilliant whiteness and vivid shades to cellulosic fibers, polyamide, and their blends, all while adhering to stringent environmental standards. When you choose to buy OEKO-TEX certified OBA 4BK from us, you are opting for a product that contributes to a safer production environment and reduces ecological impact. This gray-greenish powder is not just about superior brightening; it's about responsible chemistry.


Our eco-friendly textile brighteners exhibit excellent washfastness, ensuring long-lasting brightness, which also contributes to sustainability by extending product life. With good stability to alkalis, peroxide, and electrolytes, OBA 4BK is a versatile and robust solution for various textile applications. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to being a leading environmentally safe textile chemicals manufacturer, providing products like OBA 4BK that enable our partners to achieve their sustainability goals without compromising on quality. Contact us to learn more about our sustainable fluorescent whitening agent options and how we can support your green textile initiatives. We are your reliable green textile additives supplier.