brown light olive to yellow brown. Brown hydroscopicity powder. There are dark brown in hydrochloric acid precipitation; In concentrated Sodium hydroxide solution for blue light green. Used for cotton, hemp, viscose and vinylon/cotton blended fabric dyeing, and sometimes also used in 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
|
Fulling
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Persperation Fastness
|
Soaping
|
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Moderate
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Severe
|
|
ISO
|
4
|
3
|
3-4
|
4-5
|
|
4
|
3-4
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