4-(4-Aminophenyl)benzenamine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid coupling, and then and 4-Aminonaphthalene-1-sulfonic acid matches.
blue-ray red. Soluble in water for wine red, and adequate soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted as a light red light blue.. The dye solution to join strong hydrochloric acid for blue precipitation; Add thick sodium hydroxide solution for Red sauce, precipitation.
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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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1-2
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5
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1-2
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1-2
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1-2
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|
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AATCC
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1
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3
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1-2
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1
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1
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