Acid Green 16

Appearance is dark green powder, soluble in water, blue-green, soluble in ethanol, green, yellow-brown in concentrated sulfuric acid, yellow after dilution.

1. It is mainly used for dyeing and printing wool and silk. It is suitable for dyeing dark fabrics. It can also be used for coloring inks, feathers, straw, soap, paper and leather.

2. Wool dyeing is carried out in a strong acid bath. The pH of the dyeing bath is adjusted to 2~4, and the highest dyeing temperature is 95~100°C. Silk and nylon dyeing should be carried out in acetic acid bath or formic acid bath. Wool is the same as various fibers. When the bath is dyed, the color of nylon, silk and wool is close, and the cellulose fiber is not stained.

3. Acidic green V is bright in color, but its color fastness is poor. It is generally only suitable for the dyeing of wool products with high color vividness, or only for color matching. It is not suitable for products with high fastness requirements.