GB423587A - The manufacture of diazoimino compounds and their application in dyeing and printing - Google Patents
The manufacture of diazoimino compounds and their application in dyeing and printingInfo
- Publication number
- GB423587A GB423587A GB1828633A GB1828633A GB423587A GB 423587 A GB423587 A GB 423587A GB 1828633 A GB1828633 A GB 1828633A GB 1828633 A GB1828633 A GB 1828633A GB 423587 A GB423587 A GB 423587A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- diazoimino
- piperazinoacetic
- dyeing
- compounds
- 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
Landscapes
- Coloring (AREA)
Abstract
Diazoimino compounds soluble in water are made by coupling an aromatic diazo-, diazoazo-, or tetrazo-compound with a piperazinoacetic acid. They may be mixed with suitable azo coupling components and, if desired, with textile assistants and/or solid diluents, to form dry azo preparations for use in dyeing and printing. In examples: (1)--(3) diazoimino compounds from the following diazotized bases and piperazinoacetic acid are described: 4- or 5-chlor-o-toluidine, dianisidine, 4-methoxy-3-benzoylaminoaniline, aniline, m- and p-chloraniline and 4-benzoylamino-2 : 5-dimethoxyaniline; 4-carbothoxypiperazinoacetic acid may also be used. Azo dyes are formed on the material by applying the above diazoimino compounds and a coupling component, preferably in the form of a mixture, the colour being developed by means of an acid treatment. Examples are given in which the diazoimino compound is used with the anilide or o-toluidide of 2 : 3-oxynaphthoic acid or diacetoacetyl-o-tolidine, the colour being developed in an ager containing steam mixed with the vapours of formic and acetic acids. Piperazinoacetic acid is made by condensing piperazine with chloracetic acid or by hydrolysing ethyl 4-carbothoxy-1-piperazinoacetate with caustic soda.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1828633A GB423587A (en) | 1933-06-27 | 1933-06-27 | The manufacture of diazoimino compounds and their application in dyeing and printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1828633A GB423587A (en) | 1933-06-27 | 1933-06-27 | The manufacture of diazoimino compounds and their application in dyeing and printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB423587A true GB423587A (en) | 1935-01-28 |
Family
ID=10109849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1828633A Expired GB423587A (en) | 1933-06-27 | 1933-06-27 | The manufacture of diazoimino compounds and their application in dyeing and printing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB423587A (en) |
-
1933
- 1933-06-27 GB GB1828633A patent/GB423587A/en not_active Expired
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