Optical Whitener (OB1) is a high-performance fluorescent optical whitening additive developed to achieve high whiteness and gloss in the plastics industry. It absorbs ultraviolet (UV) rays and emits visible light in the blue spectrum, making plastic products appear whiter, more vibrant, and more aesthetically pleasing. Thanks to its high-temperature resistant structure, it offers superior performance, especially in engineering plastics, masterbatch, and polymers processed at high temperatures. Its powder form ensures homogeneous dispersion, facilitating production processes, while its use with Titanium Dioxide (TiO₂) further enhances whiteness and optical performance. Providing high efficiency at low usage rates, Optical Whitener (OB1) is a reliable choice in industrial plastics production. Product Features Product Name: Optical Whitener (OB1) Fluorescent optical whitener developed for the plastics industry. In powder form. Provides superior whiteness and high gloss to products. Creates an optical whitening effect by absorbing UV rays. Shows high performance in plastics processed at high temperatures. Can be used with Titanium Dioxide (TiO₂). Provides homogeneous dispersion. Offers high efficiency at low dosages. Suitable for masterbatch production. Compatible with engineering plastics. Origin: China. Applications Optical Whitener (OB1) is widely used in polyethylene (PE), polypropylene (PP), PET, ABS, PS, PVC, PC and other engineering plastics, masterbatch production, injection molding, extrusion, film, sheet, profile and plastic packaging applications. It is also preferred in paint, coating and various industrial production processes to provide superior whiteness and brightness. When used together with Titanium Dioxide, it enhances the optical whiteness effect, contributing to a cleaner, more vibrant and higher quality appearance. Thanks to its high heat resistance, efficiency at low usage rates and wide application area, it is a professional and reliable solution for manufacturers looking for optical whitener, OB1, fluorescent whitener, plastic whitener, masterbatch additive, plastic additive and paint whitener.