Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid coupling, and then and 4-Aminonaphthalene-1-sulfonic acid matches.
Properties and Applications
blue-ray red. Soluble in water for wine red, and adequate soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted as a light red light blue.. The dye solution to join strong hydrochloric acid for blue precipitation; Add thick sodium hydroxide solution for Red sauce, precipitation.
|
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
1-2
|
5
|
1-2
|
1-2
|
|
1-2
|
|
|
AATCC
|
1
|
3
|
1-2
|
1
|
|
1
|
|
