Preparation
N-(4-aminophenyl)acetamide diazo, and 4-Hydroxy-5-(phenylsulfonamido)naphthalene-2,7-disulfonic acid?coupling.
Properties and Applications
red light purple. Soluble in water and ethanol for product red. The strong sulfuric acid for brick red; For product red after diluted. In water solution to join strong hydrochloric acid for product red, add thick sodium hydroxide solution for product red.
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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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3-4
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4-5
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4
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1
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3
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3-4
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3
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AATCC
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3-4
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4-5
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4-5
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3-4
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2
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2
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