Preparation
3-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, product to diazo, coupled with phenol, then will the phenol hydroxyl into b oxygen radicals.
Properties and Applications
red light orange. Red orange powder, soluble in water, in 90 ℃ water solubility of 100 g/L. This applies to goods polyamide fiber fabric dyeing, can make discharge printing to color but to pull white, the color fastness is better.
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Standard(Polyamide)
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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5
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5
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5
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