Preparation
4-(4-Dimethylaminoanilino)phenolin ethanol Sodium polysulfide solution in the heating, and in 84 ℃ next return 165 ~ 170 hours, then blowing air to precipitation, garnish with hydrochloric acid part neutralization. This indophenolis by N1,N1-dimethylbenzene-1,4-diamine and phenol and condensation.
Properties and Applications
brilliant blue. Blue powder. Soluble in Sodium sulfide solution, the solubility of medium. Used for cotton, hemp, viscose fiber dyeing. Also can be used for paper and leather dyeing.
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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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Fulling
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Persperation Fastness
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Soaping
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Moderate
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Severe
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ISO
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4-5
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5
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4-5
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3-4
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4-5
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3
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AATCC
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5
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4-5
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4-5
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4
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4
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2-3
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