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PE film Optical Brightener OB-1 393 china

Brand
Raytop
Appearance
Yellow Green Powder
Purity
98.5%
Color shade
Blue
Finess
400-800 mesh
Package
10kg/25kg per fiber drum
Shelf Life
2 years
Transport
by sea or by air
Molecular formula
C28H18N2O2
CAS
1533-45-5
Color light
blue
Solubility
solvent solubility
Wavelength
374nm
Call Us: +86-15854199366

Optical Brightener is actually a kind of optical reaction whitening,It is different from bleaching and titanium dioxide covering.

It absorbs ultraviolet light (about 340~380nm) invisible to the naked eye in sunlight,Then it is emitted in the form of 

blue-violet (about 410~460nm) fluorescence.The blue-violet fluorescence is mixed with the yellowish light on the substrate 

to obtain white light (yellow is the complementary color of blue-violet),So as to get the whitening effect.


The fluorescent whitening agent OB-1 can be said to be one of the most popular Optical Brightener products. Is it really as perfect 

as the legendary one?

No, it also has some flaws of its own.

For example, it is easily seperated from PE film .After precipitation, the product will soon lose the whitening effect.

In fact, most of the whitener products have this problem more or less.It is affected by sunlight, temperature, humidity and 

other environments factors,so the same product used on the same plastic, but the environment is different, the product life 

is different.

But we Raytop Chemical have a new formular that is a kind of advanced optical brightener OB-1 which is used for PE film with a very 

good performance.

OB-1 393.JPG


Product Name:Optical Brightener OB-1

Chemical Name:2.2’-(4.4’-diphenol vinyl) dibenzoxazol

CAS No.:1533-45-5

C.I. No.:393

Molecular Formula:C28H18N2O2

Molecular Weight:414 

Technical Index:Appearance:yellowish green powder 

Melting Point:357~359°C 

Purity:≥98.5% 

Recommend Dosage:200-500g per 1000kg material

Package:10KG/25kg per fiber drum with 450kg or 500 kg or 675kg/pallet


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