black to green light blue black. Black powder. Soluble in water, solubility for 150 ~ 200 g/L. In the cold concentrated sulfuric acid in indissolvable, after heating for black and Sulfur dioxide release, after dilution precipitate; In the Sodium hydroxide solution for blue black solution; In the Sodium sulfide solution for green black. The dye absorption of moisture resistance. Used for cotton, hemp, vinylon and viscose or wool top dyeing. Also used in viscose of protoplasm coloring, artificial leather dyeing.
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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
|
Persperation Fastness
|
Soaping
|
|
Moderate
|
Severe
|
|
ISO
|
4-5
|
4-5
|
6-7
|
4-5
|
5
|
5
|
4-5
|
|
AATCC
|
5
|
5
|
6-7
|
4
|
|
|
4-5
|