Preparation
Vat Blue 4??in the presence of sulfuric acid and manganese dioxide, a chlorine chloride, to give a, II and trichloro derivative (amount of 1 to 3 chlorine atoms, an average of 2).
Properties and Applications
brilliant blue. In concentrated sulfuric acid for olive brown; In the basic insurance powder solution for green light blue; In the acidic insurance powder solution for blue.
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Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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4
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3
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7-8
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5
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5
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4-5
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4-5
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