Longtai’s optical brighteners can significantly enhance product whiteness and fluorescence effects, delivering results that are both long-lasting and stable.
Longtai’s optical brighteners can significantly enhance product whiteness and fluorescence effects, delivering results that are both long-lasting and stable.
Optical brightener is a high-efficiency functional additive that works by absorbing ultraviolet light and re-emitting visible blue light, effectively offsetting yellow tones and enhancing overall whiteness and brightness. With low dosage requirements, strong whitening performance, and excellent stability, it is widely used in plastics, textiles, coatings, inks, and paper. When properly formulated and dispersed, it significantly improves visual appearance and strengthens product competitiveness in the market.
| Optical brightener OB(FBA 184) |
| Appearance: light yellow or milk white powder |
| Purity: 99.0％Min |
| Melting point: 201-205℃ |
| Solubility: hardly soluble in water, but soluble in paraffin, mineral oils and ordinary organic solvents. |
| Packaging: 25KGS fiber drums within double PE bags. |
| Usage: A good whitening agent for PVC,PS,PE,PP,ABS, ther-moplastic plastics, Acetate fiber, paint, coating and printing ink, etc. |
| Optical brightener OB-1(FBA 393) |
| Appearance: bright yellowish green crystals powder |
| Purity: 98.5％Min |
| Melting point: 355-360℃ |
| Solubility: insoluble in water, but soluble in high boiling point organic solvent such as phenyl-chloride. |
| Packaging: 25KGS fiber drums within double PE bags. |
| Usage: A good whitening agent for polyester-cotton blend fabric or various kinds of plastics and their products under high temperature |
| Optical brightener FP127(FBA 378) |
| Appearance: light yellow powder |
| Purity: 99.0％Min |
| Melting point: 219-221℃ |
| Particle size: 300 meshes Min |
| Packaging: 25KGS fiber drums within double PE bags. |
| Usage: A good whitening agent for various kinds of plastics and their products, especially on the products of plastics such as PVC and PS. |
| Optical brightener KCB(FBA 367) |
| Appearance: yellowish green crystal powder |
| Purity: 99.0％Min |
| Melting point: 210-212℃ |
| Solubility: insoluble in water, but soluble in ordinary organic solvents. |
| Packaging: 25KGS fiber drums within double PE bags. |
| Usage: A good whitening agent for plastic films, injection-molded materials EVA foamed plastics and rubber products. |
| Optical brightener KSN(FBA 368) |
| Appearance: yellowish green crystal powder |
| Purity: 99.0％Min |
| Melting point: 335-345℃ |
| Packaging: 25KGS fiber drums within double PE bags. |
| Usage: A good whitening agent for polyester fibers and plastics, polyamide and polycarylonitrile fibres, film, plastic pressing & injection process. |
| Product | FBA No. | Purity | Melting Point | Key Feature | Primary Applications |
|---|---|---|---|---|---|
| OB | FBA 184 | ≥99.0% | 201-205°C | Versatile, general-purpose | PVC, PS, PE, PP, ABS, coatings, inks |
| OB-1 | FBA 393 | ≥98.5% | 355-360°C | Highest thermal stability | Polyester-cotton blends, high-temp plastics |
| FP127 | FBA 378 | ≥99.0% | 219-221°C | Fine particle (300 meshes) | PVC, PS (excellent dispersion) |
| KCB | FBA 367 | ≥99.0% | 210-212°C | Versatile for films/foams | Plastic films, injection molding, EVA foam, rubber |
| KSN | FBA 368 | ≥99.0% | 335-345°C | High-temp fiber specialist | Polyester, polyamide, acrylic fibers, films |
Over the years, we’ve built strong and lasting partnerships with clients across the globe. Their positive feedback is the greatest motivation for us to continuously pursue quality and excellence.
We have worked with Longtai New Materials for many years. Their titanium dioxide stands out for its whiteness, opacity, and consistent batch quality. The stable performance has ensured the reliability of our coatings products and strengthened our competitiveness in the market.
We look forward to partnering with you to deliver high-quality titanium dioxide solutions worldwide and explore broader market opportunities together.
