Abstract:
Reactive dyes of formula (1) wherein R 1 is hydrogen or unsubstituted or substituted C 1 -C 4 alkyl, R 2 is hydrogen; C 1 -C 4 alkyl; C 1 -C 4 alkoxy unsubstituted or substituted by sulfato, hydroxy or by C 1 -C 4 alkoxy; halogen; carboxy or sulfo, R 3 is hydrogen; C 1 -C 4 alkyl; C 1 -C 4 alkoxy unsubstituted or substituted by sulfato, hydroxy or by C 1 -C 4 alkoxy; halogen; nitro; C 2 -C 4 alkanoylamino; ureido; carboxy or sulfo, (R 4 ) k denotes k identical or different substituents selected from the group halogen, C 1 -C 4 -alkyl, C 1 -C 4 alkoxy, carboxy and sulfo, X is halogen and V is a radical of formula (2a), 2(b) wherein R 5 is unsubstituted or substituted C 1 -C 4 alkyl, (R 6 ) ι denotes I identical or different substituents from the group C1-C 4 alkyl, C 1 -C 4 alkoxy and sulfo, and I is the number O, 1 or 2, Y is vinyl or a -CH 2 -CH 2 -U radical and U is a group that is removable under alkaline conditions, Q is a -CH(HaI)-CH 2 -HaI or -C(HaI)=CH 2 group, Hal is halogen and k is the number O, 1 , 2 or 3, are suitable especially for dyeing cotton and yield dyeings having good allround fastness properties.
Abstract:
The invention relates to colorants of formula (1), wherein R and R independently represent hydrogen or C1-C4-alkyl and D and D independently represent a radical of formula (2), wherein (R3)0-3 represents 0 to 3 identical or different substituents selected from the group consisting of halogen, C1-C4-alkyl, C1-C4-alkoxy, carboxy, nitro or sulfo and X1 stands for a radical of formula (3a) -SO2-Z, (3b) -NH-CO-(CH2)m-SO2-Z, (3c) -CONH-(CH2)n-SO2-Z, (3d) -NH-CO-CH(Hal)-CH2-Hal, (3e) -NH-CO-C(Hal)=CH2 or (3f), wherein Y represents halogen, T independently has the meaning of Y and represents non-fiber reactive substituents or a fiber-reactive radical of formula (4a) -NH-(CH2)2-3-SO2-Z, (4b) -NH-(CH2)2-3-O-(CH2)2-3-SO2-Z, (4c), (4d) or (4e), wherein Z represents vinyl or a -CH2-CH2-U radical and U is an alkaline separable group, Z' represents a -CH(Hal)-CH2-Hal or -(Hal)=CH2 group, m and n independently represent 2, 3 or 4 and Hal is halogen. Said colorants are suitable for dying different fibrous materials, especially fibrous material containing cellulose and provide colorings exhibiting good overall fastness.
Abstract:
Dye mixtures comprising a reactive dye having at least one structural unit of formula (1) together with a reactive dye of formula (2), wherein (Q 1 ) 0-3 and (Q 2 ) 0-3 each independently of the other denote from 0 to 3 identical or different substituents selected from the group halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, carboxy and sulfo, Z 1 and Z 2 are each independently of the other a fibre-reactive radical, at least one fibre-reactive radical being contained in the dye of formula (1) and the dye of formula (2) containing at least one fibre-reactive radical Z 1 or Z 2 , are suitable for dyeing cellulosic or nitrogen-containing fibre materials.
Abstract:
Reactive dyes of the formula (1) wherein B is an aliphatic bridging member, G is a sulfo naphthalene group or a sulfo benzene group of the formula (2a) or a pyridone radical of the formula (2b), R 1 , R 2 , R 3 and R 4 are each independently of the others hydrogen or unsubstituted or substituted C 1 -C 4 alkyl, (R 5 ) h denotes h identical or different substituents selected from the group sulfo, C 1 -C 4 alkyl and C 1 -C 4 alkoxy, R 6 is hydrogen, sulfo, halogen, carboxy, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a fibre-reactive group Z 1 of the formula -SO 2 -Y (3a), -NH-CO-(CH 2 ) l -SO 2 -Y (3b), -CONH-(CH 2 ) m -SO 2 -Y (3c), -NH-CO-CH(Hal)-CH 2 -Hal (3d) or -NH-CO-C(Hal)=CH 2 (3e), R 7 is amino, C 1 -C 4 alkyl or a fibre-reactive group Z 2 of the formula -NH-(CH 2 ) n -SO 2 -Y (3a), (R 8 ) j denotes j identical or different substituents selected from the group sulfo, C 2 -C 4 alkanoylamino, ureido, C 1 -C 4 alkyl and C 1 -C 4 alkoxy, R 9 is hydrogen, C 1 -C 4 alkyl or C 1 -C 4 alkoxy, R 10 is hydrogen or C 1 -C 4 alkyl, R 11 is hydrogen, cyano, carbamoyl or sulfomethyl, and R 12 is hydrogen, C 1 -C 4 alkyl, or phenyl which is unsubstituted or substituted by C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 2 -C 4 alkanoylamino, ureido, halogen or sulfo, X 1 and X 2 are halogen, Hal is chlorine or bromine, h and j are each independently of the other a number 0, 1 or 2; k is a number 1, 2 or 3; I, m and n are each independently of the other a number 2, 3 or 4, and Y is vinyl or a radical -CH 2 -CH 2 -U and U is a group removable under alkaline conditions, with the proviso that the dye of formula (1) contains at least one fibre-reactive group Z 1 or Z 2 are suitable for dyeing cellulosic or amide-group-containing fibre materials.