Preparation
4-(4-Aminonaphthalen-1-ylamino)phenol Copper sulfate monohydrate in the presence of Sodium polysulfide solution with heating, in 120 ℃ under reflux 30 hours, then in 60 ℃ blowing air, settling the dye. This is determined by indophenol Naphthalen-1-amine, and 4-Aminophenol was oxidized with sodium hypochlorite, and sodium hydride reduction with sulfur derived?(BIOS 983, 91 -92).
Properties and Applications
dark blue light green. Variegated dark green powder. Used for cotton, hemp, viscose fabric dyeing, also used in 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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3
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4
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4-5
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5
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3-4
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2-3
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