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| 4BK |
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| stilbene bistriazine derivative |
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| 27344-41-8 |
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| Mainly used in whitening of cotton fabric and polyester/cotton blends, T/C whitening in one bath. |
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With strong fluorescence, excellent whitening performance and slight bluish shade
With high light stability and chemical stability
Good acid stability, stable in perborate and hydrogen peroxide
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