Reactive red 7 (C.I. 17912)

Preparation

3-Amino-4-hydroxybenzenesulfonic aciddiazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, and then and 2,4,6-Trichloro-1,3,5-triazine and 3-Aminobenzenesulfonic acid condensation, eventually forming copper complex.

Properties and Applications

dark blue light red.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	6-7	5				5