GB973228A - New copper complex reactive disazo dyestuffs - Google Patents
New copper complex reactive disazo dyestuffsInfo
- Publication number
- GB973228A GB973228A GB135662A GB135662A GB973228A GB 973228 A GB973228 A GB 973228A GB 135662 A GB135662 A GB 135662A GB 135662 A GB135662 A GB 135662A GB 973228 A GB973228 A GB 973228A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- dyes
- acid
- groups
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
- C09B62/002—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the linkage of the reactive group being alternatively specified
- C09B62/006—Azodyes
- C09B62/012—Metal complex azo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises copper complexes of disazo compounds of formula A1-N=N-B-N=N-A2 wherein B is a radical of the resorcinol or 1,3-dihydroxynaphthalene series having the azo groups in ortho position to the hydroxy-groups. A1 and A2 are aromatic radicals each having a metallizable group in ortho position to the azo group at least one of A1 and A2 having a reactive acylamino group (i.e. a group of formula -N(R)-Z wherein R is a H atom or a C1-C6 alkyl group and Z is an acyl radical which contains a group capable of reaction with the hydroxyl groups of cellulose with formation of a covalent bond between the dye molecule and the fibre molecule. The dyes are prepared by treating the copper complexes of the corresponding amino-disazo dyes with the halide or anhydride of an acid containing a reactive group as defined above. Specified acids include acrylic, chloroacrylic, propiolic, maleic, chloromaleic, chloroacetic, b -chloro- or -bromopropionic and a :b - dichloropropionic acids and in particular halo-triazines and -pyrimidines. The dyes may be used to colour wool and leather from an acid to weakly alkaline bath or cellulose fibres in the presence of an acid-binding agent in brown shades. Examples are given.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB135662A GB973228A (en) | 1962-01-15 | 1962-01-15 | New copper complex reactive disazo dyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB135662A GB973228A (en) | 1962-01-15 | 1962-01-15 | New copper complex reactive disazo dyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB973228A true GB973228A (en) | 1964-10-21 |
Family
ID=9720597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB135662A Expired GB973228A (en) | 1962-01-15 | 1962-01-15 | New copper complex reactive disazo dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB973228A (en) |
-
1962
- 1962-01-15 GB GB135662A patent/GB973228A/en not_active Expired
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