GB791498A - Manufacture of a vat dyestuff containing sulphur - Google Patents
Manufacture of a vat dyestuff containing sulphurInfo
- Publication number
- GB791498A GB791498A GB31603/56A GB3160356A GB791498A GB 791498 A GB791498 A GB 791498A GB 31603/56 A GB31603/56 A GB 31603/56A GB 3160356 A GB3160356 A GB 3160356A GB 791498 A GB791498 A GB 791498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur
- manufacture
- containing sulphur
- dyestuff containing
- vat dyestuff
- 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
- C09B49/00—Sulfur dyes
- C09B49/04—Sulfur dyes from amino compounds of the benzene, naphthalene or anthracene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
A vat dye containing sulphur is obtained by heating 2-aminoanthraquinone with alkali metal sulphide and sulphur to temperatures above 250 DEG C. The product gives brown-black shades. In an example, an aqueous suspension of 2-aminoanthraquinone and sulphur is evaporated to dryness with a sodium tetrasulphide solution and the residue baked at 280 DEG C. for twelve hours.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE791498X | 1955-11-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB791498A true GB791498A (en) | 1958-03-05 |
Family
ID=6704287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31603/56A Expired GB791498A (en) | 1955-11-03 | 1956-10-17 | Manufacture of a vat dyestuff containing sulphur |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB791498A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106221277A (en) * | 2016-07-26 | 2016-12-14 | 萧县凯奇化工科技有限公司 | A kind of black vat dye and preparation method thereof |
-
1956
- 1956-10-17 GB GB31603/56A patent/GB791498A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106221277A (en) * | 2016-07-26 | 2016-12-14 | 萧县凯奇化工科技有限公司 | A kind of black vat dye and preparation method thereof |
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