Direct Orange 18

Подготовка

2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, Coupled with resorcinol; aniline diazo, and get the single accidentally nitrogen compounds coupling (20215). C.I. Direct Yellow 59 (C.I. 49000) diazo, Coupled with resorcinol;aniline diazo, and get the single accidentally nitrogen compounds coupling (20216). C.I. Direct Yellow 59?(C.I. 49000) (2 Moore) diazo, Coupled with resorcinol (20230).

Свойства и приложения

orange to dark orange. Soluble in water for yellow brown, slightly soluble in alcohol. The strong sulfuric acid for orange red to brown, after dilute for orange brown. The dye solution to join strong hydrochloric acid have orange brown precipitation; Sodium hydroxide solution to a wine red precipitate. Used for cellulose fiber dyeing and printing, also can be used for leather and paper color. Copper ions in dyeing reddish dark colored.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	5	3	2	2		2
AATCC	5	2	1-2	3		1-2