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Acid Black Dyes are known to be formulated by coupling diazotized p-nitroaniline in weak acid solution and resulting compound in alkaline solution. They are one of the commonly used commercial dyes for having good coloring properties and thermal stability. These dyes find application in textile, plastic processing, and pulp & paper industries. Acid Black Dyes offered by us are completely suitable for dyeing wool, blended fabrics, and non-cotton textiles.