Direct Brown 190

Direct Brown 190 化学特性,用途語,生産方法

• 製造方法

  4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid , and then in alkaline conditions 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling, product diazo again, and Resorcinol coupling.

• Properties and Applications

  red light brown. Soluble in water, ethanol and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in the dark for the light blue, diluted red brown for solution, accompanied by precipitation. The dye solution to join 10% sulfuric acid as pale blue light red jujube; Add thick sodium hydroxide solution for blue-ray purplish red color.
  

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

Direct Brown 190 上流と下流の製品情報

, Direct Brown 190 キーワード