Direct Yellow 20 化学特性,用途語,生産方法
製造方法
4-(4-Aminophenyl)benzenamine double nitriding, and 2-Hydroxy-3-methylbenzoic acid (2 Moore) coupled.
Properties and Applications
yellow. Soluble in water for yellow, slightly soluble in benzene, carbon tetrachloride, soluble fiber element and ethanol. The strong sulfuric acid to red light purple, diluted purple for blue-ray, and then a green light yellow precipitation produce; In nitric acid partly dissolved for red light purple, and then into a brown. The dye solution to join strong hydrochloric acid for yellow brown, have precipitation; Add thick sodium hydroxide solution for red light yellow, precipitation. Used for cellulose fiber, silk, wool, polyamide fiber dyeing, leather color. Exhaust dyeing good, good levelness.
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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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3
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2
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3
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3
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3
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AATCC
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2
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2
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3
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2
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4
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Direct Yellow 20 上流と下流の製品情報
原材料
準備製品