N Acid black 172 CAS# 61847-77-6 is an azo and chromium complex dye with the appearance of black powder or particles. It dissolves in water readily. The water solution shows black color.
Mainly used in the dyeing and direct printing of wool, silk and nylon/polyamide. And can also be used in the dyeing of leather.
Physical and Chemical Parameters
|
Appearance |
Black Powder or Particles |
|
pH Value (1% Water Solution) |
3.80-5.80 |
|
Strength |
98%-101% |
|
Color Difference CMC (2:1) |
≤0.50 |
|
Moisture |
≤8.00% |
|
Insoluble |
≤0.200% |
|
Solubility (90℃) |
≥50g/l |
|
Degree of Fineness (200um) |
≤8 |
|
Dust-Proof Performance |
≥2 |
Fastness Properties (Polyamide)
|
DYEING DEPTH (O.W.F) |
LIGHT (XENON) |
WASHING (50℃) |
PERSPIRATION (ALKALI) |
RUBBING |
WATER |
|
4% |
1/1 |
CH PA CO |
CH PA CO |
(DRY) (WET) |
CH PA CO |
|
6 |
4 3 4 |
4-5 4-5 4-5 |
4-5 4-5 |
4-5 4-5 4-5 |
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