Vat Green 3

Подготовка

in Sodium carbonate and Cupric oxide under the existence of, in the boiling of naphthalene, 3-Bromo-6aH-benzo[de]anthracen-7(8H)-one and 1-Aminoanthracene-9,10-dione condensation,Then isobutanol cyclization with potassium hydroxide.

Свойства и приложения

deep green. Dark gray green powder. Etanol and insoluble in water, soluble in Pyridine . In concentrated sulfuric acid for brilliant yellow green, diluted into olive green. Alkaline reduction leuco as dark blue; Acid reduction leuco for dark brown.?Mainly used for dyeing and printing of cotton fiber, can also be used vinylon and cotton blend dyeing, color yield on the PVA slightly deeper, and direct printing. Its leuco or yarn can be dyed cotton knit. Can be dyed with disperse dyes in one bath polyester / cotton blended fabric, polyester component Put a slight color.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
						Fading	Stain
ISO	4-5	4-5	8	4-5	4-5	4	4-5
AATCC	5	4-5	8	4-5