Fluorescent brightener

 

Category
Stilbene derivatives
 
Chemical name
1.4-o-cyano-p-styrene 
 

Index
C.I. 199
 
Molecular formula
C24H16N2
 
Specifications
Appearance: yellow-green crystalline powder
Shade: consistent with the standard
Content: ≥ 99%
Melting point: 230 ± 1
Water-soluble material: ≤ 0.5%
 
Performance and characteristics
Was non-ionic and do not dissolve in water, can dissolve in most organic solvents, light red, chemical stability, excellent light performance and high temperature, strong fluorescence of the goods, 300 are not biodegradable, non-sublimation PF several times higher than white, natural light, the absorption wavelength of 365mm.
 
The scope
Widely used in the polyester, acetate fibers, nylon and plastic Zengyan whitening.
 
Usage
In general the amount of polyester fiber 0.02-0.08% (with the polyester weight ratio), and in accordance with requirements of brightness suitable addition and subtraction can also be added at the same time Matting Agent Purple and blue dye.
 
Packaging and storage
25kg cardboard drum lined with plastic bags loaded, take a cool, dark dry place preservation.