GB869190A - A process for the production of direct positives by the silver salt diffusion process - Google Patents
A process for the production of direct positives by the silver salt diffusion processInfo
- Publication number
- GB869190A GB869190A GB154159A GB154159A GB869190A GB 869190 A GB869190 A GB 869190A GB 154159 A GB154159 A GB 154159A GB 154159 A GB154159 A GB 154159A GB 869190 A GB869190 A GB 869190A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- gelatine
- silver halide
- starch
- salt diffusion
- 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
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/02—Photosensitive materials characterised by the image-forming section
- G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
- G03C8/06—Silver salt diffusion transfer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D15/00—Apparatus for treating processed material
- G03D15/02—Drying; Glazing
- G03D15/027—Drying of plates or prints
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D9/00—Diffusion development apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
869,190. Photographic silver-salt diffusion processes. AGFA A.G. Jan. 15, 1959 [Jan. 20, 1958], No. 1541/59. Class 98(2) The silver halide layer and/or the transfer layer for this process are coated with a protective layer comprising a starch derivative or a galactomannan to facilitate separation of the layers after image transfer, either while wet or after drying also. In examples the layers are, respectively (1) gelatino-silver halide, and gelatine with sodium carboxy methyl cellulose containing nuclei, also hypo if desired, overcoated with aqueous ethyl or propyl starch ether; which layers may be heated while in contact; and (2) gelatino-silver halide and gelatine, both overcoated with starch ether. Guar gum and carob bean gum, also numerous other starch derivatives, are referred to for use as protective layers and such may contain up to 20 % of gelatine, cellulose derivatives or synthetic polymers. Specifications 687,751 and 814,154 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA28714A DE1055953B (en) | 1958-01-20 | 1958-01-20 | Process for making direct positives using the silver salt diffusion process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB869190A true GB869190A (en) | 1961-05-31 |
Family
ID=6926720
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB154159A Expired GB869190A (en) | 1958-01-20 | 1959-01-15 | A process for the production of direct positives by the silver salt diffusion process |
GB153959A Expired GB864154A (en) | 1958-01-20 | 1959-01-15 | A process and apparatus for the production of direct positives by the silver salt diffusion process |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB153959A Expired GB864154A (en) | 1958-01-20 | 1959-01-15 | A process and apparatus for the production of direct positives by the silver salt diffusion process |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE574860A (en) |
CH (1) | CH376767A (en) |
DE (1) | DE1055953B (en) |
FR (1) | FR1221885A (en) |
GB (2) | GB869190A (en) |
NL (2) | NL235282A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3203796A (en) * | 1962-04-27 | 1965-08-31 | Gevaert Photo Prod Nv | Use of starch ether layers in diffusion transfer processes |
EP0306561A1 (en) * | 1987-09-08 | 1989-03-15 | Agfa-Gevaert N.V. | Image-receiving material |
EP0672943A1 (en) * | 1994-03-04 | 1995-09-20 | Agfa-Gevaert N.V. | A silver halide imaging material and a method for obtaining an image according to the silver salt diffusion transfer process |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE609394A (en) * | 1960-10-20 | |||
GB1054811A (en) * | 1963-01-17 | |||
JPS5035820B1 (en) * | 1965-01-07 | 1975-11-19 |
-
0
- NL NL235281D patent/NL235281A/xx unknown
- BE BE574860D patent/BE574860A/xx unknown
- NL NL235282D patent/NL235282A/xx unknown
-
1958
- 1958-01-20 DE DEA28714A patent/DE1055953B/en active Pending
-
1959
- 1959-01-15 GB GB154159A patent/GB869190A/en not_active Expired
- 1959-01-15 CH CH6837459A patent/CH376767A/en unknown
- 1959-01-15 GB GB153959A patent/GB864154A/en not_active Expired
- 1959-01-20 FR FR784499A patent/FR1221885A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3203796A (en) * | 1962-04-27 | 1965-08-31 | Gevaert Photo Prod Nv | Use of starch ether layers in diffusion transfer processes |
EP0306561A1 (en) * | 1987-09-08 | 1989-03-15 | Agfa-Gevaert N.V. | Image-receiving material |
EP0672943A1 (en) * | 1994-03-04 | 1995-09-20 | Agfa-Gevaert N.V. | A silver halide imaging material and a method for obtaining an image according to the silver salt diffusion transfer process |
Also Published As
Publication number | Publication date |
---|---|
BE574860A (en) | |
FR1221885A (en) | 1960-06-07 |
NL235282A (en) | |
DE1055953B (en) | 1959-04-23 |
GB864154A (en) | 1961-03-29 |
NL235281A (en) | |
CH376767A (en) | 1964-04-15 |
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