OB-KSN
Optical Brightener KSN has strong light fastness and migration resistance. It is widely used for polyester fiber, polyamide, polypropylene fine polymer fibers, high-quality engineering plastics. KSN is chemically stable and has a good affinity with common plastics.
Key Features
Technical Specifications
| C.I. NO. | C.I. 368 |
| Appearance | Yellowish green crystal powder |
| Purity | ≥99% |
| Melting Point | 269-271°C |
| Volatility | ≤0.5% |
Physical Data & Fastness Properties
| Shade/Tone | Reddish |
| Ash | ≤0.5% |
| Max Absorption Wavelength | 370nm (in ethanol) |
| Max Emission Wavelength | 437nm (in ethanol) |
| Heat Resistance | Strong |
| Light Fastness | Strong |
| Weather Fastness | Good |
Applications
- Polyester fiber
- Polyamide (PA/Nylon)
- Polypropylene fine fibers
- High-quality engineering plastics
- Plastic films
- Injection molding
- Extrusion products
Usage Instructions
Dosage in plastics: 0.01-0.03%, or adjust according to user's need. Due to the dosage amount being small, please mix thoroughly for the best effect. When using any UV absorb additive, the dosage of KSN should be adjusted.
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