Leuco Sulphur Blue 2 化学特性,用途語,生産方法
製造方法
N-[p-(p-hydroxyanilino)phenyl]anthranilic acid?in Sodium polysulfide solution in return 105 ~ 106 ° C heating 65 hours, then add salt from Sodium sulfide solution precipitation dye crude products, in the cold dilute Sodium hydroxide solution air oxidation. This Indophenol?is by N-Phenylanthranilic acid?and?4-Nitrosophenol?condensation, product with Sodium hydrosulfide and reduction.
Properties and Applications
blue.
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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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Fulling
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Persperation Fastness
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Soaping
|
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Moderate
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Severe
|
|
ISO
|
3
|
4
|
4-5
|
3
|
|
3
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2-3
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Leuco Sulphur Blue 2 上流と下流の製品情報
原材料
準備製品