Acid Blue 113

Application Features

Green light black powder. Purple soluble in water, soluble in ethanol is violet blue, also soluble in soluble fiber element, slightly soluble in acetone, insoluble in other organic solvents. Meet sulfuric acid as dark green light blue, it will be diluted in deep green light blue to grey purple; Nitric acid in a orange brown solution. Its water solution and strong hydrochloric acid is purple; Add thick sodium hydroxide solution is purplish red color. In dyeing copper and iron ion, the former slightly darker, the latter slightly becomes shallow. Discharge the gender is poorer.

Appearance is green light black powder. It is soluble in water and purple. It is soluble in ethanol and purple blue. It is also soluble in cellosolve. It is slightly soluble in acetone and insoluble in other organic solvents. It is dark green blue in sulfuric acid. After dark green light to grayish purple; in concentrated nitric acid, it is orange-brown solution. The aqueous solution is concentrated with hydrochloric acid, which is purple-red; the concentrated sodium hydroxide solution is reddish.

Used for wool, polyamide fiber and fabric dyeing of silk, also can with the direct dyes with bath dyed wool/stick blended fabric, can also be used in leather, paper and biological shading.

Use condition:

1. It is used for dyeing and printing wool, silk and nylon. It can also be used for coloring leather, paper and biological materials.

2. Wool dyeing: It should be carried out in a weak acid bath and a neutral bath. The pH value of the dyeing solution is adjusted to 5~7. When dyeing with acetic acid bath, the effect of retarding dyeing with Yuanming powder is not obvious. The highest dyeing temperature is 85~95°C, and the dyeing temperature should not exceed 95°C. If the temperature is too high or the time is too long, the color of the dyed product is easy to turn dark and dark. The weak acid dark blue 5R has high reduction sensitivity. Adding a suitable weak oxidizing agent to the dyeing solution can prevent the influence of the reducing substance generated during the dyeing process on the color light.

3. Silk dyeing: in weak acid or neutral bath, dyeing in neutral bath should be added to Yuanming powder for dyeing. It is often used for dyeing cyan. It is dyed on the dyeing machine, which is easy to produce shallow head and shallow side disease.疵. The dyeing fastness on silk is worse than wool dyeing.

4. Nylon dyeing: carried out in a weakly acidic or neutral bath.

5. Blending of blended fabrics: When the wool is dyed in the same bath with various fibers, the apparent color depth of the nylon is close to that of the wool, the silk is lighter, the polyester and acrylic fibers are stained, and the cellulose fibers are stained. It can also be dyed with the direct dye. The wool-blend blend fabric, after dyeing, is fixed with a fixing agent to improve the wet processing fastness.

6. When dyeing, the color of copper ions is slightly darker, and the iron ions are slightly lighter. The discharge is poor.