2-Amino-4-nitrophenol diazo, and N-(2-hydroxy-5-methylphenyl)acetamide?coupling, and then turn it into 1:2 chromium complex.
red light brown. Black brown powder, soluble in water for black brown solution. Used for wool, silk, polyamide, PVA and their blended fabric dyeing and printing, also can be used for leather dyeing.
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
7
|
5
|
5
|
4-5
|
4
|
4-5
|
5
|
|