Preparation
4-Aminobenzenesulfonic acid diazo, and?2,5-Dimethylbenzenamine coupling, its product to diazo, coupled with N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea.
Properties and Applications
red. Soluble in water for purplish red color, soluble in ethanol and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for green light blue and dark red light blue after diluted precipitation. The dye solution to join 10% sulfuric acid as shallow dark red light blue; Add 10% sodium hydroxide solution for shallow purplish red color.
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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AATCC
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3
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5
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5
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2
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3
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