Product Introduction
Acid blue 92 CAS# 3861-73-2 is a diazo dye with the appearance of dark brown powder. It dissolves in water. Slightly soluble in ethanol and cellosolve. The water solution shows reddish blue color.
Mainly used in the dyeing of wool, silk and nylon/polyamide. And can also be used in the dyeing of leather, viscose, paper and soaps.
pH 4.5-5.5 recommended for the dyeing of wool; pH 4.5-5.5 recommended for the dyeing of nylon/polyamide.
Physical and Chemical Parameters
|
Appearance |
Dark Brown Powder |
|
pH Value (1% Water Solution) |
6.50-8.50 |
|
Strength |
98%-101% |
|
Color Difference CMC (2:1) |
≤0.50 |
|
Moisture |
≤8.00% |
|
Insoluble |
≤0.200% |
|
Solubility (90℃) |
≥30g/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 |
|
3% |
1/1 |
CH PA CO |
CH PA CO |
(DRY) (WET) |
CH PA CO |
|
5 |
3-4 4-5 4 |
4 2-3 1 |
4-5 4 |
4 2 2-3 |
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