1326-51-8

1 parts of?4-Methylbenzene-1,3-diamine??and 2 parts of? mixture of sulfur of 210 ~ 250 ℃ calcination 15 hours, product dissolved in Sodium sulfide and Sodium hydroxide solution, then add salt, in six hours heated to 240 ℃, again in the 250 ℃ heating for more than 4 hours, make the moisture evaporation (BIOS 1155, – 39).

brown. Red brown powder. Insoluble in water, soluble in Sodium sulfide solution for brown, slightly soluble in concentrated sulfuric acid. Dyeing content in alkaline insurance powder solution slightly change; In Sodium hypochlorite solution shallow, yellowing, join concentrated sulfuric acid turn yellow. Mainly used for cotton, hemp, viscose and vinylon/cotton blended fabric dyeing, and sometimes also used in leather and paper dyeing.

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