In the realm of advanced material science, achieving pristine whiteness and vibrant brightness is paramount for numerous industrial applications. Among the most effective solutions is Fluorescent Brightener Optical Brightener OB-1, a high-performance chemical compound widely utilized for its exceptional ability to enhance the visual appeal of a vast array of materials. NINGBO INNO PHARMCHEM CO.,LTD. is proud to be a premier provider of this essential additive, offering a product that meets the most stringent quality standards.

Optical Brightener OB-1, also known as a Fluorescent Whitening Agent (FWA), operates on a sophisticated principle of light transformation. It efficiently absorbs invisible ultraviolet (UV) light, typically in the 370-375 nm range, and re-emits it as visible blue-violet light, commonly at 434-435 nm. This re-emitted blue light effectively neutralizes any inherent yellowish tones in the material, making it appear significantly whiter, brighter, and more luminous than it would naturally. Unlike traditional bleaching, which chemically removes color, OB-1 creates a powerful and appealing optical effect, enhancing the perceived cleanliness and vibrancy of the treated substrate.

The versatility and superior performance of Optical Brightener OB-1 make it indispensable across diverse industries. Its primary applications include the brightening and whitening of plastics such as PVC, polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, polycarbonate (PC), PMMA, and POM. This brightener is particularly valued in high-temperature processing environments, as its remarkable thermal stability, with a melting point typically ranging from 350-360°C, ensures consistent performance without degradation. Furthermore, its excellent chemical stability contributes to the longevity and enduring visual quality of the final products.

Beyond plastics, OB-1 is extensively used in synthetic fibers, including polyester, nylon, and polypropylene fibers, significantly improving their whiteness and overall aesthetic. In the textile industry, it is crucial for achieving the desired "whiter-than-white" effect. Its applications also extend to coatings, paints, and inks, where it boosts color intensity and provides a clearer, brighter finish. Even in specialized fields like the cosmetic industry, certain derivatives of optical brighteners are employed for color-correcting effects in products like shampoos and eye makeup, though the specific OB-1 grade is primarily industrial.

Technical specifications underscore the product's high quality:
CAS No.: 1533-45-5
Molecular Formula: C28H18N2O2
Appearance: Pale green to yellowish-green powder
Purity: Typically ≥ 98.5%
Melting Point: 350-360°C
Maximum Absorption Wavelength: 370-375 nm
Maximum Emission Wavelength: 434-435 nm

The minimal required dosage of Optical Brightener OB-1 offers significant economic advantages while delivering powerful brightening effects. Its superb dispersibility ensures uniform distribution within the material, leading to consistent and impressive results. For instance, in various plastic applications, a small addition amount, often ranging from 0.01% to 0.05% by weight, is sufficient to achieve desired optical enhancement.

NINGBO INNO PHARMCHEM CO.,LTD. is a trusted manufacturer and supplier dedicated to providing premium chemical solutions. Our Fluorescent Brightener Optical Brightener OB-1 is produced under strict quality control protocols, ensuring consistent purity and performance for all industrial needs. We understand the critical role of reliable supply chains and are committed to offering competitive price options and efficient logistics to our global clientele. To buy or purchase high-quality Optical Brightener OB-1, we invite you to connect with our sales team. We are ready to provide detailed product specifications, safety data sheets, and tailored solutions to meet your specific application requirements, ensuring your products achieve an unparalleled level of brilliance and visual appeal in the market.