Optical brightener
Chemical name
.'(,'
Distyryl
)
Bisbenzoxazole
Structural formula
Molecular weight
Properties
This product is yellow crystalline powder
Melting point
℃
Performance Insoluble in water, odorless, stable performance
Maximum absorption wavelength
Strong fluorescence
,
The fluorescence emission wavelength is
,
bright blue and bright white light
(
similar to the standard
)
Purity
.%
Fineness
Passed
Purpose
Usage
Mainly used for whitening polyester stock solution, especially suitable for polyester fiber , polypropylene fiber whitening, and can also be used to whiten plastic products.
How to use: Generally, the dosage for white products
%
(ratio to the weight of raw materials) and add or subtract the appropriate amount according to the whiteness requirements
Supply of optical brightener OB-1 for plastics