What is optical brightener OB-1 393?

Optical Brightener OB-1 393 is a kind of plastics additive,it absorbs UV light which our eyes can not see and emits blue light which our eye can see.From this way,it makes people see the final products more white.

Optical brightener OB-1 393 is crystallized substance, has strong fluorescence. It is odorless,can not dissolve in water.

Product Specification:

Appearance: Bright yellowish green crystal powder

molecular weight: 414

Molecular formula: C28H18N2O2

Melting point: 350-360℃

Maximum absorption wavelength: 374nm

Maximum emission wavelength: 434nm

Product Application:

Optical Brightener OB-1 393 is suitable for many plastics, such as PP, PVC,PET, ABS,PA,PS,PC,PBT,HLPS,HDPE,LDPE, EVA and so on.Especially,used in masterbatch,PVC products and polyester stable fiber big quantity.

Package:

10kg/20kg/25kg per fiber drum

450kg/500kg/675kg per pallet

We can also customize the package according to our customers’ requirements.

FAQ

1.What's the difference between Optical Brightener OB-1 Greenish and Yellowish?

The greenish OB-1 has the blue tone, while the yellowing OB-1 has the red purple tone. Except this, they have the same performance of whiteness and brightness.

2.Are you a factory or trader?

We are factory with 6 workshops,2 are for optical brightener OB-1,an annual production capacity is 240 mt.

http://www.raytopchemical.com/