Description
Reactive dyes are a class of highly water-soluble dyes that chemically react with the substrate (usually cellulose fibers) to form a covalent bond. This unique feature allows the dye to become part of the fiber, resulting in excellent wash and light fastness. They are mainly used for dyeing natural fibers such as cotton, linen, and viscose, although they can also be used on wool and silk under certain conditions.
Color Characteristics
Key Characteristics
- Covalent Bond Formation: Reactive dyes form strong chemical bonds with fibers, making the color durable and wash-resistant.
- Bright and Vibrant Colors:These dyes offer a wide range of bright, intense, and vivid shades.
- High Wash Fastness: Colors do not easily fade or wash out due to the chemical bonding.
- Eco-Friendly Options: Many reactive dyes are available in low-salt or salt-free formulations, reducing environmental impact.
- Variety of Reactive Groups: Includes types like mono-functional (e.g., chlorotriazine), bi-functional (e.g., combination of vinyl sulfone and triazine), offering different dyeing properties.
- Good Leveling PropertiesSuitable for both continuous and batch dyeing processes.
