Optical Brightener KSN
Optical Brightener KSN
Whitening Agent| KSN
Basic Specifications
| Product Name | Optical Brightener KSN |
| English Name | Optical Brightener KSN |
| CAS Registry Number | 5242-49-9 |
| C.I. Number | Fluorescent Brightener 368 / C.I. 368 |
| Molecular formula | C₃₀H₂₂N₂O₂ |
| Molecular Weight | 442 |
| Product Categories | Whitening Agent |
| Product Line | KSN |
| Hue | Blue-violet light |
| Appearance | Yellow crystalline powder |
| Density | Approx. 1.4 g/cm³ |
Product Features
- Premium Whitening Agent — The top-tier product in our plastic whitening series, delivering exceptional brightening effects.
- Heat-resistant — Melting point 270-295°C, ideal for high-temperature plastic molding
- Extremely low dosage — only 0.0005-0.002% of transparent plastic required for high whitening intensity.
- Vivid Fluorescence: Strong blue-violet glow that significantly enhances plastic clarity.
- Highly compatible — suitable for most polymer materials
- Fade-resistant — stays bright over time without yellowing or fading.
Application Areas
General Plastics — PP, PS, PE, ABS, Rigid PVC, EVA, PC, etc.Synthetic fibers — Brightening of polyester, nylon, and acrylic fibersPolyester Polymerization — Whitening Agents for Standard Polymerization Stages of Polyester and NylonFilm Injection Molding — Whitening Agents for Films, Injection Molding, and Extrusion CompoundsPaints & Coatings — Whitening and Brightening Agents for Paints and Printing Inks
App Data
| Applicable Systems | Recommendation | Behavior Description |
|---|---|---|
| PP | ✅ Recommended | Usage: 0.002-0.03%; whitening and brightening, heat resistant |
| PS | ✅ Recommended | Dosage: 0.002-0.03%; whitening effect on finished products |
| PE | ✅ Recommended | Usage: 0.002-0.03%; film brightening |
| ABS | ✅ Recommended | Dosage: 0.002-0.03%; whitening effect on finished products |
| Rigid PVC | ✅ Recommended | Usage: 0.002-0.03%; brightens extruded profiles |
| PC | ✅ Recommended | Usage: 0.002-0.03%; Whitening for engineering plastics |
| EVA | ✅ Recommended | Usage: 0.002-0.03%; Whitening agent for shoe materials |
| polyester fiber | ✅ Recommended | Use 0.01-0.02% fiber whitening |
| Transparent plastic | ✅ Recommended | Usage: 0.0005-0.002%; whitening for transparent products |
Notes
- Please test with a sample first to confirm the optimal dosage and heat resistance conditions.
- The powder color chart may differ from the final product color. Please refer to the actual colored result.
- Evaluate weather resistance for long-term outdoor exposure.
- Use in very small amounts; mix thoroughly to ensure uniformity.
Learn more?
Our technical team is ready to provide professional product consultation and application guidance.
Get in Touch