Preparation
4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and 2,4,6-Trichloro-1,3,5-triazine condensation, 2-Aminobenzenesulfonic acid diazo, and condensation products coupled, then salting-out.
Properties and Applications
colourful red blue light. Sauce red powder. The strong sulfuric acid for purple, diluted into colourful red; In nitric acid for red, diluted is still red. The dye solution for red, with 1 Moore sodium hydroxide solution into orange red, continue to join insurance powder and warm, into a light yellow, plus people had boric acid sodium is still light yellow. Mainly used for cotton, viscose, wool, silk dyeing, suitable for contaminated and roll dye.
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Standard
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Light Fastness
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Oxygen bleaching
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Persperation Fastness
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Soaping
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Fading
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Stain
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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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5
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2 (Light blue)
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4-5
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4(blue)
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4
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3 (Light blue)(5*100℃)
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4-5
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