Optical Brightener 4BK by Afine Chemicals is stilbene bistriazine derivative based whitening agent. It possesses strong fluorescence, excellent whitening performance and slight bluish shade.
- It offers high light stability, chemical stability and good acid stability.
- It is stable in perborate and hydrogen peroxide.
- Optical Brightener 4BK is used in polyester/cotton blend.
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Optical Brightener 4BK properties
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| Properties | Value & unit | Test condition | Test method |
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