Preparation
4-(4-Aminophenyl)benzenamine double nitriding, respectively with the 8-Hydroxynaphthalene-1,3,6-trisulfonic acid?and Naphthalen-2-ol coupling.
Properties and Applications
blue purple. Soluble in water for purple, slightly soluble in alcohol. The strong sulfuric acid for colourful blue, purple for colourful after diluted; In nitric acid for yellow in red. The dye solution to join 10% sodium hydroxide solution for strong red light purple.
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
|
Soaping
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Water
|
Fading
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Stain
|
Fading
|
Stain
|
ISO
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4-5
|
4
|
1
|
2-3
|
|
1
|
|
AATCC
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4-5
|
4
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1-2
|
2
|
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1-2
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