OB-1Y
Optical Brightener OB-1Y is a yellowish shade variant of the OB-1 series. It has excellent thermal stability and high-temperature resistance, suitable for applications requiring warmer white tones.
Key Features
Technical Specifications
| C.I. NO. | C.I. 393 |
| Appearance | Yellowish green crystal powder |
| Purity | ≥98% |
| Melting Point | 355-360°C |
| Volatility | ≤0.5% |
Physical Data & Fastness Properties
| Shade/Tone | Yellowish |
| Ash | ≤0.03% |
| Max Absorption Wavelength | 374nm (in ethanol) |
| Max Emission Wavelength | 434nm (in ethanol) |
| Heat Resistance | 300°C |
| Light Fastness | Excellent |
| Weather Fastness | Excellent |
Application Fields
This product is widely used in the following application fields, providing excellent coloring performance and durability:
- Polyester resin and fiber
- Nylon (PA)
- Polypropylene (PP)
- ABS plastics
- Polystyrene (PS)
- Engineering plastics
Usage Instructions
Transparent: 0.0025-0.005%. Commonly used: 0.01-0.05%. Due to the dosage amount being small, please mix thoroughly for the best effect.
Frequently Asked Questions
What is OB-1Y used for?
OB-1Y is mainly used for transparent coloring of Polyester resin and fiber, Nylon (PA), Polypropylene (PP), ABS plastics and other polymers, and can also be used for masterbatch production.
What are the key properties of OB-1Y?
OB-1Y offers a heat resistance of 300°C, and has light fastness rated Excellent.
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