GB1494141A - Process for the production of a photographic image - Google Patents
Process for the production of a photographic imageInfo
- Publication number
- GB1494141A GB1494141A GB1700175A GB1700175A GB1494141A GB 1494141 A GB1494141 A GB 1494141A GB 1700175 A GB1700175 A GB 1700175A GB 1700175 A GB1700175 A GB 1700175A GB 1494141 A GB1494141 A GB 1494141A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen peroxide
- layer
- catalase
- april
- exposure
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/60—Processes for obtaining vesicular images
-
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/40—Chemically transforming developed images
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
1494141 Treatment of an image with hydrogen peroxide AGFA-GEVAERT AG 24 April 1975 [27 April 1974] 17001/75 Heading G2C A bubble or colour image is produced by bring- ing a layer containing free hydrogen peroxide into contact with an exposed photo-sensitive layer containing an imagewise distribution of catalyst for the decomposition of hydrogen peroxide, and heating at 80-150‹C. The photo-sensitive layer may be exposed to water vapour at 50-90‹C for 1-5 secs during or after the heat-treatment. The hydrogen peroxide-containing layer may be formed from polyvinyl alcohol, carboxymethyl cellulose, or cellulose acetate. The hydrogen peroxide may be incorporated into the layer-forming material before or after layer formation, e.g. as an aqueous solution (followed by drying). The concentration of hydrogen peroxide may be 1-15 gm/m<SP>2</SP>. The photosensitive layer may be formed from a silver halide emulsion of low silver halide content (e.g. 0À2 gm of Ag per m<SP>2</SP>), a material which forms a catalase or peroxidase active enzyme on exposure, or a catalase or peroxidase active enzyme which is inactivated by exposure to light. The Examples relate to superimposed silver and bubble images.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742420521 DE2420521C2 (en) | 1974-04-27 | 1974-04-27 | Process for making photographic images and cellulose acetate film |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1494141A true GB1494141A (en) | 1977-12-07 |
Family
ID=5914168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1700175A Expired GB1494141A (en) | 1974-04-27 | 1975-04-24 | Process for the production of a photographic image |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS50155227A (en) |
BE (1) | BE827821A (en) |
CA (1) | CA1059811A (en) |
CH (1) | CH599573A5 (en) |
DE (1) | DE2420521C2 (en) |
FR (1) | FR2269110B1 (en) |
GB (1) | GB1494141A (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2056359A1 (en) * | 1970-11-17 | 1972-05-18 | Agfa-Gevaert Ag, 5090 Leverkusen | Process for making photographic images |
-
1974
- 1974-04-27 DE DE19742420521 patent/DE2420521C2/en not_active Expired
-
1975
- 1975-04-11 BE BE1006588A patent/BE827821A/en unknown
- 1975-04-24 GB GB1700175A patent/GB1494141A/en not_active Expired
- 1975-04-25 FR FR7513108A patent/FR2269110B1/fr not_active Expired
- 1975-04-25 CA CA225,504A patent/CA1059811A/en not_active Expired
- 1975-04-26 JP JP5026075A patent/JPS50155227A/ja active Pending
- 1975-04-28 CH CH539775A patent/CH599573A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH599573A5 (en) | 1978-05-31 |
DE2420521A1 (en) | 1975-11-13 |
JPS50155227A (en) | 1975-12-15 |
BE827821A (en) | 1975-10-13 |
FR2269110A1 (en) | 1975-11-21 |
FR2269110B1 (en) | 1978-10-13 |
DE2420521C2 (en) | 1983-12-08 |
CA1059811A (en) | 1979-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |