Product Introduction
Acid yellow 235 CAS# 90585-54-9 is an azo and 1:2 cobalt complex dye with the appearance of yellow powder. It dissolves in water. The water solution shows yellowish color.
Mainly used in the dyeing and printing of wool, silk and nylon/polyamide.
pH 5.0-6.0 recommended for the dyeing of wool; pH 4.0-5.0 recommended for the dyeing of nylon/polyamide.
Physical and Chemical Parameters
|
Appearance |
Yellow Powder |
|
pH Value ( 1% Water Solution) |
6.20-8.20 |
|
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 |
|
1% |
1/1 |
CH PA CO |
CH PA CO |
(DRY) (WET) |
CH PA CO |
|
5-6 |
4-5 5 5 |
4-5 5 5 |
4-5 5 |
4-5 5 5 |
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