Optical brightener OB-1 is the most cost-effective and most popular product among the optical brighteners.

 Due to the high melting point of the brightener, it has good heat resistance and light resistance, and the chlorine bleaching resistance is particularly excellent.

Most people knew BASF and Eastman produced optical brighteners,but now China is the only production original.Optical brightener is not only has high technical content, but also has serious environmental pollution. The configuration of environmental protection equipment consumes a lot of money.Now optical brighteners are popular and expprt to more than 40 countries,such as Germany/Italy/Poland/Russia/Ukraine/Turkey/UAE/Iran/Israel/Korea/Vietnam/Thailand/Indonesia/Mexico/Peru/Egypt/Argentina/Brazil/Algeria etc

Product information:

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% 

Performance:

①Appearance: bright yellow crystalline powder.

②Melting point: 357-359°C.

③Solubility: insoluble in water, soluble in high-boiling organic solvents such as trichlorobenzene.

④Structural type: It belongs to stilbene bisbenzoxazole brightener.

⑤Other characteristics: Due to the high melting point of the brightener, it has good heat resistance and light resistance, and the chlorine bleaching resistance is particularly excellent.

Use:

Optical brightener OB-1 is especially suitable for the molding and processing of various plastics and plastic products under high temperature. Because of its good heat resistance, light resistance and chlorine bleaching resistance, it can brighten polyester fibers and blend polyester with cotton and other fibers. The whitening effect of the fabric is also particularly ideal, and it can be used as the whitening of polyester stock solution. Similar foreign products include: Whitex SNK, Uvitex ERT, Eastobrite OB-1.

Instructions:

Optical brightener OB-1 is 0.01-0.05% of the plastic or polyester pellets, and it is fully mixed with the materials before the molding and processing of various plastic products or before the spinning of polyester fibers.