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Reactive Black Dyes
Reactive Black dyes are a class of synthetic dyes used to color textiles and other materials. They are called "reactive" dyes because they form a covalent bond with the fibers of the material being dyed, resulting in a more permanent and colorfast bond than other types of dyes.Reactive Black dyes are typically used to produce deep, dark shades of black or gray on cotton, wool, and other natural fibers. They are also used to dye synthetic fibers such as polyester, nylon, and acrylic.