Preparation
2,4-Diaminobenzenesulfonic acid and 2,4,6-Trichloro-1,3,5-triazinecondensation, and then diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acidcoupling, and salting.
Properties and Applications
colourful green light yellow. Yellow powder. In the water solubility of 100 g/L (50 ℃), can be in low temperature solid color, suitable for cold dye. But in 20 to 40 ℃ in. Alkali medium solid color, solid color rate is 60%. Alkaline hydrolysis, not resistant to acid hydrolysis. Mainly used for cotton, silk, polyamide fiber and viscose, wool fiber dyeing and can be white. Can render cloth dyed ice dye printing.
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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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6-7
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2
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2(5*100℃)
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