3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazotization, and 4-Hydroxynaphthalene-1-sulfonic acid coupling.
dark blue purple. Soluble in water for wine red, right amount soluble in ethanol to red. In concentrated sulfuric acid to purple, red orange after diluted. Dye aqueous solution to join concentrated hydrochloric acid for red orange; Add nano hydroxide to red.
Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
|
Water
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Alkali
|
Acid
|
ISO
|
5
|
6
|
5
|
4
|
4
|
5
|
4-5
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