Preparation
4,4′-Diamino-3,3′-Biphenyldisulfonic acid double nitriding, and 2-Amino-4-methylanisole (2 Moore) coupled, product to double nitriding, in alkaline conditions and 3-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?(1 Moore) and 4-(8-Hydroxy-6-sulfonaphthalen-2-ylamino)benzoic acid??(1 Moore) coupled.
Properties and Applications
red light black. Soluble in water for violet black, not soluble in alcohol. The strong sulfuric acid for blue, blue for red after diluted. The dye solution to join strong hydrochloric acid for dark; Add thick sodium hydroxide solution for blue-ray black.
Standard
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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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4
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2-3
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2
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|
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1-2
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