Leuco Sulphur Blue 2 Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
N-[p-(p-hydroxyanilino)phenyl]anthranilic acid?in Sodium polysulfide solution in return 105 ~ 106 ° C heating 65 hours, then add salt from Sodium sulfide solution precipitation dye crude products, in the cold dilute Sodium hydroxide solution air oxidation. This Indophenol?is by N-Phenylanthranilic acid?and?4-Nitrosophenol?condensation, product with Sodium hydrosulfide and reduction.
Properties and Applications
blue.
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Moderate
|
Severe
|
ISO
|
3
|
4
|
4-5
|
3
|
|
3
|
2-3
|
Leuco Sulphur Blue 2 Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte