Product Details

Optical brighteners have many seriers,amoung them,optical brightener for plastcs is a big market.At the same time,Optical brightener OB-1 393 is the most famouse whitener.

Optical Brightener OB-1 393 is a kind of plastics auxiliary,powder form,it likes other optical brighteners,to 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.It can be added directly into the raw material,mix it evenly and to make the end user products.

Appearance: It has two appearances,Bright green and yellow crystal powder

CAS NO.:1533-45-5

C.I. NO.:393

molecular weight is 414

Molecular formula is C28H18N2O2

Melting point is from 350 to 360℃

Maximum absorption wavelength is 374nm

Maximum emission wavelength is 434nm

 Optical brightener OB-1 393 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.

1. With high temperature resistance, it is the most widely used and most popular optical brightener for plastics. Popular Industries such as building materials,  polyester staple fibers are especially consumption large.

2. Excessive use has poor weather resistance and easily seperate out, and the addition amount cannot exceed the peak value.

3. High fluorescence intensity, suitable for use in combination with other models to produce synergistic effects.

10kg/20kg/25kg per fiber drum

450kg/500kg/675kg per pallet

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

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.

The reason why the fluorescent whitening agent can improve the appearance of the plastic because of its whitening principle. The fluorescent whitening agent is a substance that can emit blue light. The three primary colors of light, blue light and yellow light, are used to complement each other to form White light, that is, using the blue light of the brightener to eliminate the yellow light of the recycled material.

http://www.raytopchemical.com/