GB821506A - The production of positive photographic images by heat development - Google Patents
The production of positive photographic images by heat developmentInfo
- Publication number
- GB821506A GB821506A GB4246/57A GB424657A GB821506A GB 821506 A GB821506 A GB 821506A GB 4246/57 A GB4246/57 A GB 4246/57A GB 424657 A GB424657 A GB 424657A GB 821506 A GB821506 A GB 821506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- emulsion
- exposed
- transfer layer
- transfer
- 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
- 239000000839 emulsion Substances 0.000 abstract 8
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 4
- 229910052709 silver Inorganic materials 0.000 abstract 3
- 239000004332 silver Substances 0.000 abstract 3
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 abstract 1
- 241001479434 Agfa Species 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 abstract 1
- 229940081735 acetylcellulose Drugs 0.000 abstract 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- -1 silver halide Chemical class 0.000 abstract 1
- 235000017281 sodium acetate Nutrition 0.000 abstract 1
- 239000001632 sodium acetate Substances 0.000 abstract 1
- ZEIFRGRWSNOFSJ-UHFFFAOYSA-N sulfurous acid terephthalaldehyde Chemical compound OS(O)=O.O=Cc1ccc(C=O)cc1 ZEIFRGRWSNOFSJ-UHFFFAOYSA-N 0.000 abstract 1
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
- G03C8/40—Development by heat ; Photo-thermographic processes
- G03C8/4006—Development by heat ; Photo-thermographic processes using materials covered by the groups G03C8/04 - G03C8/06
-
- 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
- G03C5/29—Development processes or agents therefor
- G03C5/315—Tanning development
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/166—Toner containing
Abstract
821,506. Photographic processes. AGFA A. G. Feb. 7, 1957 [Feb. 18, 1956], No. 4246/57. Class 98(2) Positive images are made by exposing a silver halide emulsion layer containing a tanning developing agent, heating the layer to a temperature of 80-150C. to reduce and harden the emulsion at the exposed areas, keeping the layer in contact with a transfer layer at 80-150C. to transfer unexposed emulsion thereto, separating the two layers, and subjecting the transfer layer to reducing conditions to form a silver image therein. The reducing conditions may be provided by exposing the transfer layer and heating it to 80- 150C. The separate heating of the emulsion layer may be omitted and in this case the reducing conditions may be attained by providing reducing substances in the transfer layer. Several copies may be taken from one emulsion layer but the latter should not be exposed to light during this procedure. In ten examples the separate heating of the emulsion layer is always omitted, thus in Example 1 a gelatine-silver halide emulsion containing pyrocatechol, terephthalaldehyde bisulphite, sodium acetate and benztriazole as on a paper support is exposed, heated as at 110-120C. for 5 to 30 seconds whilst in contact with an acetyl cellulose acetobutyrate coated paper constituting the transfer layer and the latter is separated, exposed to dull light and reheated to show a deep black positive image of the original. In Example 2 a somewhat similar emulsion but containing also a proportion of metol is exposed and processed as in Example 1 using piperazine in the transfer layer but with omission of the after-treatment of the latter since blackening is effected by the piperazine. The remaining examples mostly follow the procedure of Example 1 and numerous further substances and supports for use in the process are referred to in these examples and in the body of the description. Specifications 655,273 [Group XXX], 790,811 and 801,053 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA24337A DE1015313B (en) | 1956-02-18 | 1956-02-18 | Process for the direct production of positives with the help of tanning development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB821506A true GB821506A (en) | 1959-10-07 |
Family
ID=6925640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4246/57A Expired GB821506A (en) | 1956-02-18 | 1957-02-07 | The production of positive photographic images by heat development |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3080230A (en) |
| BE (1) | BE555103A (en) |
| CH (1) | CH361193A (en) |
| DE (1) | DE1015313B (en) |
| FR (1) | FR1172609A (en) |
| GB (1) | GB821506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306747A (en) * | 1962-12-26 | 1967-02-28 | Polaroid Corp | Diffusion transfer product with microcapsules containing glycerin-water solutions |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1080854B (en) * | 1957-12-10 | 1960-04-28 | Zindler Lumoprint Kg | Process for the production of correct-sided positive images under the influence of heat and positive material for the implementation of this process |
| US3248219A (en) * | 1960-09-06 | 1966-04-26 | Cons Electrodynamics Corp | Photographic element for dry processing |
| US3212895A (en) * | 1960-12-20 | 1965-10-19 | Eastman Kodak Co | Stability of rapid-processed photographic materials |
| US3278307A (en) * | 1961-11-21 | 1966-10-11 | Eastman Kodak Co | Photographic process for producing prints stabilized against print-out |
| FR89467E (en) * | 1961-12-08 | |||
| BE612311A (en) * | 1962-01-05 | |||
| FR1333745A (en) * | 1962-03-14 | 1963-08-02 | Kodak Pathe | New photothermographic product and method of photographic reproduction using such product |
| BE631556A (en) * | 1962-04-26 | |||
| BE636329A (en) * | 1962-08-20 | |||
| US3157500A (en) * | 1962-09-11 | 1964-11-17 | Eastman Kodak Co | Photographic products containing magnetic particles and processes therefor |
| US3203797A (en) * | 1962-10-16 | 1965-08-31 | Andrews Paper & Chem Co Inc | Thermal diazotype method and developer sheet for use therein |
| DE1298415B (en) * | 1962-10-29 | 1969-06-26 | Eastman Kodak Co | Method for the transmission of images |
| US3155517A (en) * | 1962-11-08 | 1964-11-03 | Du Pont | Photographic compositions and elements |
| NL301026A (en) * | 1962-11-28 | |||
| US3379532A (en) * | 1963-07-05 | 1968-04-23 | Zindler Lumoprint Kg | Image receiving sheet with a double pvahygroscopic salt layer coating |
| DE1189383B (en) * | 1963-09-30 | 1965-03-18 | Agfa Ag | Process for the production of photographic relief images, which are also suitable as printing form, by heat development |
| GB1086279A (en) * | 1964-12-25 | 1967-10-04 | Fuji Photo Film Co Ltd | Heat developable photographic copying material |
| US4418139A (en) * | 1980-12-31 | 1983-11-29 | Polaroid Corporation | Film units containing thermally induced water-releasing benzotriazole complex |
| US4359397A (en) * | 1980-12-31 | 1982-11-16 | Polaroid Corporation | Benzotriazole complexes and film units employing same |
| JPS6332536A (en) * | 1986-07-25 | 1988-02-12 | Fuji Photo Film Co Ltd | Photosensitive material |
| JP2739261B2 (en) * | 1991-05-07 | 1998-04-15 | 富士写真フイルム株式会社 | Image forming method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US742405A (en) * | 1901-12-17 | 1903-10-27 | Farbenfabriken Elberfeld Co | Photographic plate and process of making same. |
| US1944293A (en) * | 1930-11-17 | 1934-01-23 | Martinez Michele | Photographically sensitive element |
| BE384853A (en) * | 1930-12-11 | |||
| GB399269A (en) * | 1932-05-31 | 1933-10-05 | Michele Martinez | Improvements in or relating to the formation of relief images for photographic and other purposes |
| GB427962A (en) * | 1933-10-27 | 1935-04-29 | Werner Paul Leuch | Improvements in or relating to the production of photographic diazotype prints |
| BE485609A (en) * | 1947-11-04 | 1942-11-12 | ||
| BE517065A (en) * | 1952-01-21 | |||
| US2747999A (en) * | 1953-03-16 | 1956-05-29 | Eastman Kodak Co | Photographic reproduction process |
| BE546664A (en) * | 1955-04-05 | |||
| US2865745A (en) * | 1955-08-25 | 1958-12-23 | Eastman Kodak Co | Photographic reproduction process |
-
0
- BE BE555103D patent/BE555103A/xx unknown
-
1956
- 1956-02-18 DE DEA24337A patent/DE1015313B/en active Pending
-
1957
- 1957-01-29 US US636863A patent/US3080230A/en not_active Expired - Lifetime
- 1957-01-30 CH CH361193D patent/CH361193A/en unknown
- 1957-02-07 GB GB4246/57A patent/GB821506A/en not_active Expired
- 1957-02-15 FR FR1172609D patent/FR1172609A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306747A (en) * | 1962-12-26 | 1967-02-28 | Polaroid Corp | Diffusion transfer product with microcapsules containing glycerin-water solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1015313B (en) | 1957-09-05 |
| FR1172609A (en) | 1959-02-12 |
| US3080230A (en) | 1963-03-05 |
| BE555103A (en) | |
| CH361193A (en) | 1962-03-31 |
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