Acid Black 234 is a high-performance acid dye widely used for coloring wool, silk, nylon, and other protein fibers. It offers excellent solubility, uniform dyeing, and vibrant dark shades. It is valued for its reliable fastness properties and versatility in textile applications.
TRADE NAME:Acid Black NBG,Acid Black 2NBG,Acid Black NR,Apollo Leather Black NGRL,Black GS,Chenitan Black FK2,Chenitan Carbon Black,Colocid Black NB,Coriamine Black NB-G,Dayglo Acid Black 234 200%,Acid Black 2BNG,Acid Black NE
fiber | saoaping | Perspiration | friction | Sun exposure | |||||
discolor | Hair stain | Cotton stain | discolor | Hair stain | Cotton stain | dry | wet | ||
wool | 4~5 | 5 | 3 | 3~4 | 4 | 4~5 | 5 | 4~5 | 5 |
Acid Black 234 Mainly used for wool, silk, cotton and glue dyeing, also can be used for leather dyeing.
Acid Black 234 delivers optimal performance on wool and silk due to their protein content. Nylon fibers also accept the dye well, producing deep black shades with consistent penetration.
Maintain dye bath pH between 4 and 5, control temperature ramp-up to avoid fiber damage, and use precise salt or acid concentrations. Consistent agitation ensures uniform absorption across fabric batches.
Yes. For continuous processes, regulate liquor ratio and dwell time carefully. Monitoring conductivity and pH throughout the line helps maintain shade consistency on large fabric volumes.
Recycle rinse waters and adjust dye concentration to minimize excess discharge. Using advanced effluent treatment can reduce environmental impact while maintaining color quality.
Check fiber pre-treatment and moisture content, ensure proper dye bath pH, and verify uniform heating. Adjusting mordant or salt levels can correct patchiness and improve wash and perspiration fastness.
