Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupling with?3-Aminonaphthalene-2,7-disulfonic acid, and then in acid conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid acid coupling.
Properties and Applications
red. Soluble in water for red, slightly soluble in alcohol for pink. The strong sulfuric acid in blue, diluted dark for. The dye solution to join strong hydrochloric acid for dark purple and dark, precipitation; With strong sodium hydroxide solution for red orange.
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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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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2
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4
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2
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1
|
|
1
|
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AATCC
|
2
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5
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4-5
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2
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2-3
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