Optical Brightener OB-1
Optical Brightener
CAS 1533-45-5
Technical Information
Optical Brightener OB-1 — C.I. 393
Optical Brightener OB-1 is a high-performance bis(benzoxazolyl) stilbene derivative, providing excellent whitening effects for polyester fiber and synthetic fibers. It offers high whitening force and strong fluorescence with exceptional thermal stability (MP >= 359C), making it the preferred choice for high-temperature processing applications.
Key Features
- High whitening force and strong fluorescence
- Exceptional thermal stability (MP >= 359C)
- Fine particle size over 300 mesh for uniform dispersion
- Wide compatibility with polyester, nylon, and polypropylene
- Excellent light fastness for outdoor applications
Recommended Applications
Suitable for polyester fiber, nylon fiber, polypropylene fiber, and whitening of plastics like PET, PC, ABS.
Technical Data
| Product Information | ||||
| Chemical Type | Optical Brightener | CAS NO. | 1533-45-5 | |
| C.I. Name | C.I. 393 | Physical Appearance | Powder | |
| Packaging & Storage | ||||
| Packed in carton or fiber drum with inner plastic bag. Store in cool, dry and ventilated place. Shelf life: 24 months in sealed original packaging. | ||||
Disclaimer: Specifications are for reference only. Always verify with our team and review TDS/SDS before product use.
Disclaimer: Specifications are for reference only. Always verify with our team and review TDS/SDS before product use. Full legal disclaimer.