GB283777A - Manufacture of black copying colours - Google Patents
Manufacture of black copying coloursInfo
- Publication number
- GB283777A GB283777A GB1396527A GB1396527A GB283777A GB 283777 A GB283777 A GB 283777A GB 1396527 A GB1396527 A GB 1396527A GB 1396527 A GB1396527 A GB 1396527A GB 283777 A GB283777 A GB 283777A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colours
- manufacture
- black copying
- cresol
- copying
- 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
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Coloring (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
283,777. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). May 24, 1927. Azo dyes.-A good black copying colour is obtained by coupling a diazotized dialkylated phenosafranine with a cresol. Diethylphenosafranine and p-cresol are mentioned as suitable components. Specification 14687/95 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1396527A GB283777A (en) | 1927-05-24 | 1927-05-24 | Manufacture of black copying colours |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1396527A GB283777A (en) | 1927-05-24 | 1927-05-24 | Manufacture of black copying colours |
Publications (1)
Publication Number | Publication Date |
---|---|
GB283777A true GB283777A (en) | 1928-01-19 |
Family
ID=10032583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1396527A Expired GB283777A (en) | 1927-05-24 | 1927-05-24 | Manufacture of black copying colours |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB283777A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3068056A (en) * | 1960-06-02 | 1962-12-11 | Du Pont | Dyeing of polyester fiber and the products so obtained |
US4285859A (en) * | 1978-02-28 | 1981-08-25 | Ciba-Geigy Ag | Azo compounds useful in a photographic dye diffusion transfer process |
-
1927
- 1927-05-24 GB GB1396527A patent/GB283777A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3068056A (en) * | 1960-06-02 | 1962-12-11 | Du Pont | Dyeing of polyester fiber and the products so obtained |
US4285859A (en) * | 1978-02-28 | 1981-08-25 | Ciba-Geigy Ag | Azo compounds useful in a photographic dye diffusion transfer process |
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