GB656507A - Textile dyeing - Google Patents
Textile dyeingInfo
- Publication number
- GB656507A GB656507A GB30146/48A GB3014648A GB656507A GB 656507 A GB656507 A GB 656507A GB 30146/48 A GB30146/48 A GB 30146/48A GB 3014648 A GB3014648 A GB 3014648A GB 656507 A GB656507 A GB 656507A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyestuff
- nitroaniline
- sulphonic acid
- naphthol
- fibre
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/02—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes
- D06P1/12—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes prepared in situ
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
Textile fibres are treated with an aqueous solution of a water-soluble organic dyestuff containing a nitro group in an aromatic nucleus and the dyestuff is then reduced on the fibre to convert the nitro group into an azoxy group, e.g. by means of a hot alkaline solution of a reducing sugar or an arsenite. The original dyestuff may be an azo dyestuff or a dyestuff of the anthraquinone series containing a nitro group. If the azoxy dyestuff on the fibre contains an aromatic amino group, it may be diazotized and coupled with a suitable coupling component; similarly, if the azoxy dyestuff can act as a coupling component it may be coupled on the fibre with a diazotized aromatic amine. Other aftertreatments, e.g. treatment with an aldehyde or a metal salt, may also be applied. In example (1), cotton yarn is immersed in a solution containing the dyestuff 4-nitroaniline-2-sulphonic acid -->2 - amino - 8 - naphthol - 6 - sulphonic acid and also sodium carbonate, heated to 70 DEG C. and an aqueous solution of glucose then added. In other examples, the dyestuff is replaced by (2) p - nitroaniline-->2 - benzoylamido - 5-naphthol-7-sulphonic acid; (3) aniline-->2-p-nitrobenzoylamino - 5 - naphthol - 7 - sulphonic acid; (4) p-nitroaniline-->silicylic acid; (5) 4 - nitroaniline - 2 - sulphonic acid-->cresidine and (6) p-nitroaniline-->cresidine. The resulting dyestuff of (5) can be diazotized on the fibre and coupled with b -naphthol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US656507XA | 1947-12-06 | 1947-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB656507A true GB656507A (en) | 1951-08-22 |
Family
ID=22064186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30146/48A Expired GB656507A (en) | 1947-12-06 | 1948-11-19 | Textile dyeing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB656507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591634A (en) * | 1980-06-12 | 1986-05-27 | Bayer Aktiengesellschaft | Trisazo/azoxy dyestuff mixtures |
-
1948
- 1948-11-19 GB GB30146/48A patent/GB656507A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591634A (en) * | 1980-06-12 | 1986-05-27 | Bayer Aktiengesellschaft | Trisazo/azoxy dyestuff mixtures |
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