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Reactive Black B is a type of reactive dye commonly used in the textile industry for dyeing cellulose fibers such as cotton and viscose. It is known for its excellent color fastness and ability to form covalent bonds with the fiber, resulting in vibrant and durable colors. This dye is typically used in various dyeing processes, including batch dyeing and continuous dyeing methods.
| Chemical structure | Azo compound |
| Color fastness | Good to excellent |
| Solubility | Water-soluble |
| Application method | Batch dyeing, continuous dyeing |
| pH range for dyeing | 6 to 11 |
When selecting Reactive Black B, buyers should consider the specific fiber content of the textiles to be dyed, as this dye is most effective on cellulose fibers. It's important to specify the desired shade, application method, and any necessary certifications for environmental compliance. Quantities will depend on the scale of production, so buyers should provide estimated usage to receive accurate quotes.
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It is primarily used on cellulose fibers like cotton and viscose.
It forms covalent bonds with the fibers during the dyeing process.
The typical pH range is between 6 and 11.
Environmental impact depends on the specific formulation and usage; check for certifications.
It should be stored in a cool, dry place away from direct sunlight.
It is primarily designed for dyeing, but some formulations may be suitable for printing.