| abstract |
Formula (I) wherein R 1 and R 2 each independently from each other are a residue of an organic dye: Y 1 and Y 2 each independently from each other are unsubstituted or substituted, straightchain or branched, interrupted or uninterrupted —C 1 -C 10 alkylene-; —C 5 -C 10 cycloalkylene-; C 5 -C 10 arylene; or —C 5 -C 10 arylene-(C 1 C 10 alkylene)-; Z 1 and Z 2 independently from each other are Formula (II) are each independently from each other hydrogen; or unsubstituted or substituted, straight-chain or branched, monocyclic or polycyclic, interrupted or uninterrupted C 1 -C 14 alkyl; C 2 -C 14 alkenyl; C 6 -C 10 aryl; C 6 -C 10 aryl-C 1 -C 10 alkyl; or C 5 -C 10 alkyl(C 5 -C 10 aryl); r, q and n independently from each other are 0 or 1, if n is 0, Z 3 is hydrogen; and if n is 1, Z 3 is —S—; with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1). Further, the present invention relates to novel disulfide compounds, compositions thereof, especially comprising other dyes, and to processes for their preparation. |