Properties and Applications
brown. Red brown powder. Insoluble in water, soluble in Sodium sulfide solution for brown, slightly soluble in concentrated sulfuric acid. Dyeing content in alkaline insurance powder solution slightly change; In Sodium hypochlorite solution shallow, yellowing, join concentrated sulfuric acid turn yellow. Mainly used for cotton, hemp, viscose and vinylon/cotton blended fabric dyeing, and sometimes also used in leather and paper dyeing.
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Moderate
|
Severe
|
ISO
|
3
|
4
|
3-4
|
4
|
5
|
4
|
4
|
AATCC
|
3-4
|
5
|
4
|
4
|
|
4-5
|
|