REACTIVE YELLOW 1

Preparation

2,4-Diaminobenzenesulfonic acid and 2,4,6-Trichloro-1,3,5-triazine?condensation, and then diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid?coupling, and salting.

Properties and Applications

colourful green light yellow. Yellow powder. In the water solubility of 100 g/L (50 ℃), can be in low temperature solid color, suitable for cold dye. But in 20 to 40 ℃ in. Alkali medium solid color, solid color rate is 60%. Alkaline hydrolysis, not resistant to acid hydrolysis. Mainly used for cotton, silk, polyamide fiber and viscose, wool fiber dyeing and can be white. Can render cloth dyed ice dye printing.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	6-7	2				2(5*100℃)