Optical Brightener OB-1, identified by its CAS number 1533-45-5, is a highly versatile and effective fluorescent whitening agent that plays a critical role in enhancing the visual appeal of numerous industrial products. Its unique ability to absorb UV light and re-emit blue light provides a brilliant whitening effect, making it indispensable in sectors ranging from plastics and textiles to coatings and inks. As a leading supplier of specialty chemicals, we are dedicated to providing manufacturers with high-performance solutions like OB-1, backed by expert technical knowledge and competitive pricing.

In the plastics industry, OB-1 is a cornerstone additive. It is widely incorporated into polymers such as PVC, ABS, PS, HIPS, PA, PC, PP, and EVA to achieve superior whiteness and brightness. Its excellent thermal stability allows it to withstand the high processing temperatures involved in molding and extrusion, ensuring consistent results in products like films, profiles, and molded parts. Manufacturers seeking to buy this high-performance plastic additive will find OB-1 to be a reliable choice for elevating product aesthetics and masking inherent yellowness.

The textile sector also heavily relies on OB-1, particularly for synthetic fibers like polyester and nylon, as well as blended fabrics. It provides a vibrant, neutral white shade that is resistant to light and washing, significantly improving the overall appearance of apparel and home textiles. Its effectiveness in polyester stock solutions further solidifies its position as a preferred brightener for synthetic fiber production. The ability to consistently achieve excellent whitening results makes it an attractive option for textile mills looking for quality and performance.

Beyond plastics and textiles, Optical Brightener OB-1 finds applications in coatings, paints, inks, and paper industries. When added to these formulations, it helps to mask yellowing and impart a cleaner, brighter appearance, thereby enhancing the perceived quality of the finished goods. For businesses looking to procure OB-1 in bulk, partnering with a reputable manufacturer and supplier like NINGBO INNO PHARMCHEM CO.,LTD. guarantees access to a high-purity product, competitive pricing, and dependable service. Investing in OB-1 means investing in the visual appeal and marketability of your products.