Abstract: New, highly multifunctional reactive dye compounds are provided. The number of leaving groups in the non-chromophoric part of the molecule added to the number of chromophore moieties is at least equal to 5, preferably in the range of from 5 to 12, more preferably from 5 to 6. The new reactive dye compounds preferably have at least two asymmetric bridges.

Abstract: New, highly multifunctional reactive dye compounds are provided. The number of leaving groups in the non-chromophoric part of the molecule added to the number of chromophore moieties is at least equal to 5, preferably in the range of from 5 to 12, more preferably from 5 to 6. The new reactive dye compounds preferably have at least two asymmetric bridges.

Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one SO2C2H4 group which is attached to the chromophore moiety either directly via the sulphur atom of the SO2C2H4 group or via a linking group L; characterized in that at least one SO2C2H4 group is substituted on its terminal carbon atom with at least one Y group wherein Y is derived from a hydrated aldehyde, a hydrated ketone, a hydrated alpha-hydroxy ketone or the hydrated form of formic acid, and linked via one of its oxygen atoms to the terminal carbon of the SO2C2H4 group thereby forming a hemiacetal.

Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety (b) at last one SO2C2H4 group which is attached to the chromophore moiety either direcly via the sulphur atom of the SO2C2H4 group or a linking group L; characterized in that at least one SO2C2H4 group is substituted on its terminal carbon atom with at least one Y group wherein Y is —A(CO)R* wherein A is selected from O or S and wherin R′ contains at least one terminal nucleophilic group, such as OH, NH2, SH, COOH, N, NHR1 and NR1R2 wherein R1 and R2 may be the same of different and may be selected from C1-C4 alkyl; and salts therof. Also claimed is a process of manufacture of the compounds herein and products obtainable by the process.

Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety (b) at least one nitrogen-containing heterocycle (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one oxy- or thio-carbonyl derivative wherein the oxy- or thio-carbonyl derivative is selected from Y wherein Y is —A(CO)R* wherein A is selected from O or S and wherein R* is an organic residue which comprises at least one nucleophilic group, and salts thereof.