REACTIVE YELLOW 25

Подготовка

2,4-Diaminobenzenesulfonic acid diazo, and 1-(2-methyl-4-sulfophenyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid?coupling, again with 2,3-Dichloroquinoxaline-6-carbonyl chloride?condensation.

Свойства и приложения

brilliant yellow. Light yellow evenly powder, 25 ℃ in when more than 100 g/L solubility. After dyeing for bright yellow, dye bath containing iron ion make a turn red light and turn a little shallow; Meet copper ions turned dark. The neutral and alkaline white are A level. Apply to the cellulose fiber dyeing and printing, especially suitable to discharge printing.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	7	3-4	5	5	5	5	5