Neutral Brown Rl

Preparation

2-Amino-4-nitrophenol diazo, and N-(2-hydroxy-5-methylphenyl)acetamide?coupling, and then turn it into 1:2 chromium complex.

Properties and Applications

red light brown. Black brown powder, soluble in water for black brown solution. Used for wool, silk, polyamide, PVA and their blended fabric dyeing and printing, also can be used for leather dyeing.

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