OB-ER-I
Optical brightener ER-I has a high whitening brightening effect and excellent fastness to sublimation. It is used in whitening of polyester fiber and plastics such as PE, PP, PVC.
Key Features
Technical Specifications
| C.I. NO. | C.I. 199 |
| CAS Number | 13001-39-3 |
| Appearance | Green powder |
| Purity | 99.0% |
| Melting Point | 229-231°C |
| Volatility | ≤0.5% |
| Molecular Formula | C24H14N2 |
Physical Data & Fastness Properties
| Shade/Tone | Reddish |
| Ash | ≤0.03% |
| Heat Resistance | 300°C |
| Light Fastness | Good |
| Weather Fastness | Excellent |
Application Fields
This product is widely used in the following application fields, providing excellent coloring performance and durability:
- Polyester fiber
- Polyethylene (PE)
- Polypropylene (PP)
- PVC (polyvinyl chloride)
- Textile industry
Usage Instructions
Plastic industry dosage: 0.02-0.03%. Used in whitening of polyester fiber in emulsion form. Used in whitening of plastics such as PE, PP, PVC.
Frequently Asked Questions
What is OB-ER-I used for?
OB-ER-I is mainly used for transparent coloring of Polyester fiber, Polyethylene (PE), Polypropylene (PP), PVC (polyvinyl chloride) and other polymers, and can also be used for masterbatch production.
What are the key properties of OB-ER-I?
OB-ER-I offers a heat resistance of 300°C, and has light fastness rated Good.
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