GB744930A - A new copper-containing disazo dyestuff - Google Patents
A new copper-containing disazo dyestuffInfo
- Publication number
- GB744930A GB744930A GB1749453A GB1749453A GB744930A GB 744930 A GB744930 A GB 744930A GB 1749453 A GB1749453 A GB 1749453A GB 1749453 A GB1749453 A GB 1749453A GB 744930 A GB744930 A GB 744930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyestuff
- coupling
- effected
- sodium carbonate
- new copper
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/24—Disazo or polyazo compounds
- C09B45/28—Disazo or polyazo compounds containing copper
-
- 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
- C09B35/20—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling compounds of different types
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises a dyestuff of formula <FORM:0744930/IV(c)/1> made by coupling tetrazotised 3, 31-dimethoxy-4, 41-diphenyl with one molecular proportion of each of the appropriate naphthol sulphonic acids and treating the disazo dyestuff thus obtained with copperyielding agents. The coupling should be alkaline and advantageously the first coupling is effected in the presence of sodium carbonate and the second in a medium containing sodium carbonate or ammonium hydroxide and pyridine. Coppering may be effected with a hot ammonical solution of a copper salt. The dyestuff dyes celluosic fibres in blue shades. An example of the preparation is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1749453A GB744930A (en) | 1953-06-24 | 1953-06-24 | A new copper-containing disazo dyestuff |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1749453A GB744930A (en) | 1953-06-24 | 1953-06-24 | A new copper-containing disazo dyestuff |
Publications (1)
Publication Number | Publication Date |
---|---|
GB744930A true GB744930A (en) | 1956-02-15 |
Family
ID=10096149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1749453A Expired GB744930A (en) | 1953-06-24 | 1953-06-24 | A new copper-containing disazo dyestuff |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB744930A (en) |
-
1953
- 1953-06-24 GB GB1749453A patent/GB744930A/en not_active Expired
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