GB548806A - Manufacture of a vat dyestuff - Google Patents
Manufacture of a vat dyestuffInfo
- Publication number
- GB548806A GB548806A GB511141A GB511141A GB548806A GB 548806 A GB548806 A GB 548806A GB 511141 A GB511141 A GB 511141A GB 511141 A GB511141 A GB 511141A GB 548806 A GB548806 A GB 548806A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methylthionaphthene
- methyl
- quinone
- hydroxythionaphthene
- chlor
- 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
- C09B7/00—Indigoid dyes
- C09B7/10—Bis-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
548,806. Thioindigoid dyes. WILKINSON, D. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 21, 1941, No. 5111. [Class 2 (iii) and 15 (ii)] A dyestuff suitable for dyeing cotton and printing viscose is obtained by condensing 6- chlor - 4 - methyl - 3 - hydroxythionaphthene with 7-methyl 3- hydroxythionapththene, one of the components being in the form of the reactive 2-derivative of the corresponding quinone. In examples, p-dimethylaminoanil of 6 - chlor - 4 - methylthionaphthene - 2:3 - quinone is condensed with 7-methyl-3-hydroxythionaphthene and p-hydroxyanil of 7-methylthionaphthene-2:3-quinone with 6-chlor-4- methyl-3-hydroxythionaphthene. In a further example, the leuco ester salt of the dyestuff is prepared by treating it with copper powder and sodium-pyrosulphate in pyridine and adding caustic soda. p - Hydroxyanil of 7 -methylthionaphthene - 2:3-quinone is prepared from p-nitrosophenol and 3-hydroxy-7-methylthionaphthene.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB511141A GB548806A (en) | 1941-04-21 | 1941-04-21 | Manufacture of a vat dyestuff |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB511141A GB548806A (en) | 1941-04-21 | 1941-04-21 | Manufacture of a vat dyestuff |
Publications (1)
Publication Number | Publication Date |
---|---|
GB548806A true GB548806A (en) | 1942-10-26 |
Family
ID=9789914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB511141A Expired GB548806A (en) | 1941-04-21 | 1941-04-21 | Manufacture of a vat dyestuff |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB548806A (en) |
-
1941
- 1941-04-21 GB GB511141A patent/GB548806A/en not_active Expired
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