Leuco Sulphur Blue 2

Подготовка

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.

Свойства и приложения

blue.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
						Moderate	Severe
ISO	3	4	4-5	3		3	2-3