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Product Description
Reactive Dye Black B is a type of dye commonly used in textile and fabric dyeing processes Reactive dyes are known for their excellent colorfastness and ability to form covalent bonds with the fibers of the fabric particularly with cellulose fibers like cotton
Here are some key characteristics of Reactive Dye Black B
1 Chemical Structure Reactive dyes contain reactive groups that form covalent bonds with the hydroxyl groups in cellulose fibers under alkaline conditions
2 Color Reactive Dye Black B specifically produces a black color The shade and intensity can vary depending on the concentration of the dye used and the specific dyeing conditions
3 Application It is used primarily for dyeing natural fibers such as cotton linen and viscose rayon These dyes are less suitable for synthetic fibers like polyester
4 Properties Reactive dyes are known for their excellent wash fastness light fastness and overall color retention This makes them highly suitable for textiles that require durability and longlasting color vibrancy
5 Process The dyeing process typically involves preparing a dye bath with Reactive Dye Black B adding the fabric and then adjusting pH and temperature conditions to ensure optimal dye uptake and fixation
6 Environmental Impact While reactive dyes offer good colorfastness and brightness the dyeing process often requires large amounts of water and chemicals which can impact the environment if not managed properly
Overall Reactive Dye Black B is favored in textile industries where vibrant longlasting black colors are desired particularly on natural cellulosebased fibers