Ranbar KSN High-Performance Optical Brightening Agent
Ranbar Optical Brightening Agent KSN exhibits excellent weather resistance and outstanding stability. Its chemical structure is similar to that of Optical Brightener OB-1, but it demonstrates better compatibility with plastics and provides superior whitening effects on polyester fibers and plastic products compared to OB-1.
- CAS Registration Number: 5242-49-9
- EINECS No.: 226-044-2
- Molecular formula: C30H22N2O2
- Molecular weight: 442
- Chemical structure: 4,4′-Bis(5-methyl-2-benzoxazolyl)stilbene
| Appearance | Yellow powder |
| Melting Point | 269-271°C |
| Temperature Resistance | 275-280°C |
| Ash Content | ≤0.5% |
| Purity | ≥99% |
| Volatile Matter | ≤0.5% |
| Particle Size | Greater than 100 mesh |
| Storage | Sealed in a dry place |
Ranbar KSN optical brightening agents are primarily available in two models: KSN-A type and KSN-C type. Both exhibit excellent performance, while KSN-A exhibits better weather resistance.
Product Features:
- Low usage, high whitening intensity; a very small amount can achieve excellent whitening effects.
- Wide application range, extensively used for whitening and brightening in polyester, nylon, polypropylene, and other polymer fibers, as well as various plastic products.
- Outstanding heat resistance and weather resistance, excellent compatibility with plastics, enhancing the whiteness, brightness, and vividness of various plastic products.
Product Application：
Ranbar KSN Optical Brightening Agent is primarily utilized for whitening polymer fibers such as polyester, polyamide, and polyacrylonitrile. It can also be employed in films, injection molding, and extrusion molding materials. Adding KSN at any processing stage of synthetic polymers yields excellent whitening effects.
Ranbar KSN Optical Brightening Agent is primarily utilized for whitening polymer fibers such as polyester, polyamide, and polyacrylonitrile. It can also be employed in films, injection molding, and extrusion molding materials. Adding KSN at any processing stage of synthetic polymers yields excellent whitening effects.
Recommended Dosage: The amount of KSN fluorescent whitening agent added per 100kg of material.
For transparent plastics, the recommended dosage is 0.5 to 2g.
For polyester fibers, the recommended dosage is 10 to 20g.
Note: Add in accordance with your product formula and in conjunction with the recommended dosage provided by us. Due to the relatively small amount of fluorescent whitening agent added, it is imperative to ensure thorough and uniform dispersion of the fluorescent whitening agent throughout the entire polymer.
