Acid Black ATT appearance is brownish black powder, soluble in water and black solution. Acid Black ATT is red and dark in concentrated sulfuric acid; it is reddish brown in concentrated nitric acid, and it is blue-black in concentrated ammonia.
Leveling(grade) | Displacement | Whitening | Solubility(g/L) | Metal ion effect(grade) | ||
copper | iron | chromium | ||||
3 | C | can | — | 4~5 | 4~5 | 4 |
fiber | Alkali resistance | Carbonization | Chlorination discoloration | Alkali fluff | Acid fluff | potting | soaping(60℃) | soaping | Sun exposure | |||||
discolor | Staining | discolor | Staining | discolor | Staining | discolor | Staining | discolor | Staining | |||||
wool | 4 | 4~5 | 4~5 | 3 | 1~2 | 4~5 | 1 | 4 | 1 | 4 | 2~3 | 4 | 1 | 6~7 |
Used for silk, acrylic, tannin mordant dyeing cotton dyeing, also can be used for leather, paper, hemp and glue directly printing and dyeing, the discharge printing. Can also be used in oil and fat, paint color, also can be used in the preparation of color which used in ink.
Acid Black ATT is ideal for protein fibers such as wool, silk, and nylon. It can also be used on certain modified acrylic fibers, offering deep, consistent black shades.
Ensure the fibers are thoroughly wet and maintain uniform temperature and pH throughout the dye bath. Gradual addition of the dye and proper agitation will reduce streaks and uneven shades.
Acid Black ATT performs best in slightly acidic conditions, typically between pH 4 and 6, to ensure optimal fiber uptake and fastness.
To maximize wet and light fastness, consider pre-treating fibers with mordants if necessary and follow recommended fixation procedures. Proper washing and neutralization post-dyeing also help maintain color durability.
Yes, Acid Black ATT can be blended with other acid dyes to achieve customized shades. Compatibility tests are recommended to prevent precipitation or color inconsistencies.
