Anhui I-Sourcing International Co., Ltd.
Main products:Resin,Glitter Powder,Tube,Nail Polish,Shaving Foam
Contact Us
  • Contact Person : Ms. DENG SUNNY
  • Company Name : Anhui I-Sourcing International Co., Ltd.
  • Tel : 0086-551-2376776
  • Fax : 0086-551-2376779
  • Address : Anhui,Hefei,A1906, 1907 King Tower, Tuoji City Plaza, 687 West Changjiang Road, High Tech Development Zone
  • Country/Region : China
  • Zip : 230088

Cas No1533-45-5 ob normal best price OB normal

Cas No1533-45-5 ob normal best price OB normal
Product Detailed
Product: Optical Brightener OB-1 CAS No. 1533-45-5 C.I. No. 393 Molecular formular:C28H18N2O2 MW:414

Optical brightener OB

Product: Optical Brightener OB


The optical brighteners significantly improve the whiteness in both textile fibers and plastics. In polyester and nylon fibers, the optical brighteners impart a pleasing whiter-than-white appearance and give more intensity to some colors as well. Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers, OB-1 is an effective brightener for many plastics. OB-1 provides an excellent white, permanent color since the brightener is dissolved in the polymer or fiber during polymer manufacture. This permanence gives much better brightness retention over time versus other methods such as bleaching or surface treatment with optical brighteners. Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light. The emitted blue light will reduce the yellow color of a polymer and provide the whiter-than-white appearance. OB-1 is available in two different particle sizes, 5 and 75 microns and has approved for a variety of food-contact applications.




Specific Gravity @ 20C/20C

Melting Point 


Crystalline solid 

Greenish powder



99 wt % min


•     Coatings

•     Man-made fibers       

•      Plastics

•     Polyester

•   Polymers

•     Recycled polymers

Key Attributes:

•     Colors appear more brilliant

•     Environmentally friendly

•     Excellent brightening ability

•     Produce a bluish tinge, masking yellowness

•     Whiter-than-white appearance

Packing : 25kgs fibre drum

Storage: Keep in cool and dry place, far away from high temperature and sunshine.


Cas No1533-45-5 ob normal best price OB normal

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