Preparation
5-Amino-2-chlorobenzenesulfonic acid diazo, with Diphenylamine coupling, then treated with sodium nitrite to form N-nitroso derivative, then nitrated, and finally with sodium bisulfite to off nitroso.
Properties and Applications
yellow. Used for wool, silk, vinegar and cotton fiber dyeing. Also used in leather dyeing.
Standard
|
Light Fastness
|
Soaping
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Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
2
|
3
|
3
|
2
|
1-2
|
|
2-3
|
|