Specially designed for Brighten colors or mask yellowing in plastics. (Whiter than White) Principle – absorb ultraviolet light and re-emit most of the absorbed energy as blue fluorescent light between 400 and 500 nm Improve the handing qualities of polyolefin films. These additives migrate to the surface of the polyolefin film, forming a very thin molecular layer Whiteness in substrates can be improved by Increasing reflection (reflectance) & Compensate the blue defect
Additional Information:
- Form : Powder
- Product Code : Cbs X
- Color : Yellow
- Packaging Size : 25 kg
- Packaging Type : Loose
- Usage/Application : Plastic Industry
Optical brighteners are used to mask the inherent yellowness of plastics and are used to improve colors and make plastic look whiter and brighter. Optical brighteners are often used in conjunction with other colorants to achieve the specific shade as required by the application. Brighteners have high melting point and show good dissolution in molten plastics. Bis-benzoxazolyl-stilbene and bis-benzoxazolyl-thiophene are the two common optical brighteners used in plastics industry.
Additional Information:
- Formula C28H18N2O2
- C.I 393
- Cas no 1533-45-5
- Chemical Name 2,2'-(1,2-ethenediyl)bis(4,1-phenylene) bisbenzoxazole
- Appearance Yellowish green crystal powder
- Melting Point 357-361°C
- Content ≥98.5%
- Volatile Content ≦0.5%
- Molecular Weight 414.4
