C.I.Leuco Sulphur Red 6

Подготовка

8-Amino-7-methylphenazin-2-ol?and sodium polysulphide?aqueous solution in return in 115 ~ 116 ℃ heating 30 hours, then dilution, through the air and add salt to the precipitation. This is Pyridine by 4-Methylbenzene-1,3-diamine?and 4-Aminophenol or 4-Nitrosophenol generated Indophenol?oxidation and become.

Свойства и приложения

bordeaux. Puce powder. Part of the soluble in water. In the sodium sulfide solution solubility is good, for the red light brown to brown; In concentrated sulfuric acid for dark blue purple, dilution after brown precipitation. Mainly used for cotton, hemp, viscose and vinylon/cotton blended fabric dyeing, suitable for dye corduroy, also used in leather dyeing.

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