GB228377A - Improved manufacture of colloid layers containing chromate colloids sensitive to light - Google Patents
Improved manufacture of colloid layers containing chromate colloids sensitive to lightInfo
- Publication number
- GB228377A GB228377A GB659524A GB659524A GB228377A GB 228377 A GB228377 A GB 228377A GB 659524 A GB659524 A GB 659524A GB 659524 A GB659524 A GB 659524A GB 228377 A GB228377 A GB 228377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colloid
- layers containing
- sensitiveness
- colloids
- sensitive
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/66—Compositions containing chromates as photosensitive substances
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper (AREA)
Abstract
228,377. Wadhams, W. H., Ziehm, A., Sondermann, H. A., and Woithe, P. March 14, 1924. Bichromated colloid processes -The sensitiveness of colloid layers containing potassium bichromate is increased by adding thereto a base metal compound, such as magnesium or nickel chloride or manganese sulphate, and an acid salt, such as acid sodium phosphate. Less effective metal compounds are chlorides of iron and copper. The sensitiveness of such layers is further increased bv also adding aniline hydrochloride, which produces a marked increase evem withoat the inclusion of an acid salt. The colloid layer may be dipped into a solution of the sensitizing agents, or an emulsion of gelatin, gum, starch &c. with these agents may be coated on celluloid, paper or glass. Development of the exposed layer is effected in known manner at about 45‹ C. in pure water, or in watar containing ammonia and borax, and the image may be coloured in any manner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB659524A GB228377A (en) | 1924-03-14 | 1924-03-14 | Improved manufacture of colloid layers containing chromate colloids sensitive to light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB659524A GB228377A (en) | 1924-03-14 | 1924-03-14 | Improved manufacture of colloid layers containing chromate colloids sensitive to light |
Publications (1)
Publication Number | Publication Date |
---|---|
GB228377A true GB228377A (en) | 1925-02-05 |
Family
ID=9817327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB659524A Expired GB228377A (en) | 1924-03-14 | 1924-03-14 | Improved manufacture of colloid layers containing chromate colloids sensitive to light |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB228377A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2544877A (en) * | 1947-05-03 | 1951-03-13 | Eastman Kodak Co | Bichromate sensitized photographic materials |
US2574258A (en) * | 1948-04-26 | 1951-11-06 | Warren S D Co | Light-sensitive compositions and plates for photolithography |
US2624672A (en) * | 1948-03-01 | 1953-01-06 | Warren S D Co | Photosensitive printing plate having a light-sensitive coating consisting of a colloid, a phosphate, and a chromium compound |
US2624673A (en) * | 1948-03-01 | 1953-01-06 | Warren S D Co | Photosensitive printing plate having a light-sensitive coating consisting of a nonprotein colloid, a phosphate, and a chromium compound |
US2858214A (en) * | 1955-09-30 | 1958-10-28 | Lawrence L Pries | Light sensitive plate coating |
-
1924
- 1924-03-14 GB GB659524A patent/GB228377A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2544877A (en) * | 1947-05-03 | 1951-03-13 | Eastman Kodak Co | Bichromate sensitized photographic materials |
US2624672A (en) * | 1948-03-01 | 1953-01-06 | Warren S D Co | Photosensitive printing plate having a light-sensitive coating consisting of a colloid, a phosphate, and a chromium compound |
US2624673A (en) * | 1948-03-01 | 1953-01-06 | Warren S D Co | Photosensitive printing plate having a light-sensitive coating consisting of a nonprotein colloid, a phosphate, and a chromium compound |
US2574258A (en) * | 1948-04-26 | 1951-11-06 | Warren S D Co | Light-sensitive compositions and plates for photolithography |
US2858214A (en) * | 1955-09-30 | 1958-10-28 | Lawrence L Pries | Light sensitive plate coating |
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