| 摘要 |
The presently disclosed subject matter relates to heterobifunctional reactive dyes comprising nitrogen-containing heterocycles substituted by both halogen and vinyl sulfone moieties. In particular, the presently disclosed subject matter relates to reactive dye compounds comprising two or more halo-substituted, nitrogen-containing heterocycles and an asymmetric bridging group, wherein at least one of the two or more halo-substituted, nitrogen-containing heterocycles further comprises a vinyl sulfone substituent. In some embodiments, the bridging group has a structure based on cysteamine or cysteine. The heterobifunctional reactive dyes have high substrate affinity and can be applied to substrates, such as cotton fibers, under low salt conditions and with reduced dye material waste.
|
