GB1434233A - Method for developing two-component diazo-type sheets - Google Patents
Method for developing two-component diazo-type sheetsInfo
- Publication number
- GB1434233A GB1434233A GB3209673A GB3209673A GB1434233A GB 1434233 A GB1434233 A GB 1434233A GB 3209673 A GB3209673 A GB 3209673A GB 3209673 A GB3209673 A GB 3209673A GB 1434233 A GB1434233 A GB 1434233A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vapour
- roller
- ammonia
- flow
- developing
- 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
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D7/00—Gas processing apparatus
-
- 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
- G03C5/18—Diazo-type processes, e.g. thermal development, or agents therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Photographic Developing Apparatuses (AREA)
Abstract
1434233 Developing diazotype materials N A ZAUSMER and A S MICHLIN 5 July 1973 [20 July 1972] 32096/73 Heading G2X Diazotype sheets are developed in a development chamber by ammonia vapour in the presence of water vapour (introduced as a flow of vapour or liquid), there being conducted to the chamber (a) a flow of NH 3 vapour sufficient to effect the development and (b) a flow of CO 2 vapour sufficient to substantially reduce the ammonia odour. The development chamber 2 may contain a rotatable hollow perforated metal roller 4 and a driven rubber roller 6 between which the sheet to be developed is fed. Ammonia, carbon dioxide and water vapours may be supplied from tanks (12), (14) and (22) Fig. 1 (not shown). Alternatively, Fig. 2, they may be supplied by bubbling gas from inside roller 4 through a container 40 of NH 3 + CO 2 solution 42 (e.g. as ammonium carbonate or carbamate) and returning it to the other end of the roller; the ammonia used may be replenished from tank 56. Heaters 10 and 54 for roller 10 and container 40, and thermostats 50, 52 may be provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27356772A | 1972-07-20 | 1972-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1434233A true GB1434233A (en) | 1976-05-05 |
Family
ID=23044479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3209673A Expired GB1434233A (en) | 1972-07-20 | 1973-07-05 | Method for developing two-component diazo-type sheets |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4981032A (en) |
| DE (1) | DE2335622A1 (en) |
| FR (1) | FR2193995B3 (en) |
| GB (1) | GB1434233A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4241989A (en) * | 1979-01-15 | 1980-12-30 | Am International, Inc. | Diazo developing apparatus |
| FR2615092A1 (en) * | 1987-05-14 | 1988-11-18 | Colleter Jacques | Method and device for dynamic recording of footprints of a person |
-
1973
- 1973-07-05 GB GB3209673A patent/GB1434233A/en not_active Expired
- 1973-07-13 DE DE19732335622 patent/DE2335622A1/en not_active Ceased
- 1973-07-19 FR FR7326609A patent/FR2193995B3/fr not_active Expired
- 1973-07-19 JP JP8250873A patent/JPS4981032A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4981032A (en) | 1974-08-05 |
| DE2335622A1 (en) | 1974-01-31 |
| FR2193995B3 (en) | 1976-07-02 |
| FR2193995A1 (en) | 1974-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |