GB489575A - Improvements in the dyeing of hardened casein - Google Patents
Improvements in the dyeing of hardened caseinInfo
- Publication number
- GB489575A GB489575A GB274037A GB274037A GB489575A GB 489575 A GB489575 A GB 489575A GB 274037 A GB274037 A GB 274037A GB 274037 A GB274037 A GB 274037A GB 489575 A GB489575 A GB 489575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casein
- dyestuff
- dyed
- treatment
- acid ester
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/041—Material containing basic nitrogen containing amide groups using basic dyes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
Hardened casein, especially such as has been polished by treatment with a hypochlorite solution followed by drying, is dyed by treatment in a solution of a dyestuff of the monoazo or anthraquinone series carrying an alkylsulphuric ester group attached to an aromatic nucleus through O or N but free from sulphonic or carboxylic acid groups attached directly to an aromatic nucleus. In examples, (1) casein buttons are dyed a deep, level scarlet by treatment for 10 minutes in an aqueous solution at 70 DEG C. containing formic acid and the dyestuff, 4-nitraniline --> the sulphuric acid ester of N-ethyl-N-b -hydroxyethylaniline; (2) casein buttons, treated with hypochlorite, are similarly dyed a bright, level yellow with the dyestuff, the sulphuric acid ester of p-aminophenyl-b -hydroxyethyl ether --> p-cresol; (3) thin casein slabs are dyed a deep level blue by treatment for 10 minutes in an p aqueous solution at 70 DEG C., containing formic acid and, as dyestuff, the sodium salt of the sulphuric acid ester of 1-methylamino - 4 - b - hydroxyethylaminoanthraquinone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB274037A GB489575A (en) | 1937-01-29 | 1937-01-29 | Improvements in the dyeing of hardened casein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB274037A GB489575A (en) | 1937-01-29 | 1937-01-29 | Improvements in the dyeing of hardened casein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB489575A true GB489575A (en) | 1938-07-29 |
Family
ID=9744979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB274037A Expired GB489575A (en) | 1937-01-29 | 1937-01-29 | Improvements in the dyeing of hardened casein |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB489575A (en) |
-
1937
- 1937-01-29 GB GB274037A patent/GB489575A/en not_active Expired
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