GB613134A - Improvements in photographic materials - Google Patents
Improvements in photographic materialsInfo
- Publication number
- GB613134A GB613134A GB313046A GB313046A GB613134A GB 613134 A GB613134 A GB 613134A GB 313046 A GB313046 A GB 313046A GB 313046 A GB313046 A GB 313046A GB 613134 A GB613134 A GB 613134A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- matt
- smooth
- wick
- support
- 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
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
-
- 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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/765—Photosensitive materials characterised by the base or auxiliary layers characterised by the shape of the base, e.g. arrangement of perforations, jags
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
613,134. Photographic materials. KODAK, Ltd., JANUS, J. W., RAY, A. A., and HANCE, G. Jan. 31, 1946, No. 3130. [Class 98 (ii)] To facilitate recognition of the non-emulsion bearing side of a sensitive photographic material, the rear surface of the support is provided with a layer having smooth and matt areas so arranged that the matt areas can be readily recognized by touch, e.g. in alternate strips. This touch-recognizable layer may be produced on the rear of the support, i.e. a film support or a glass plate, by (1) first coating the support with a smooth layer and then either coating parts of it with a matt layer to form a pattern or spreading over selected areas a powder, which may be of the same composition as the binder of the smooth layer, whilst the smooth layer is still tacky; or (2) using a wick type spreader consisting of a cloth wick fed by a perforated or slotted pipe on each side of the wick so that each tube feeds alternate sections of the wick, and thereby coating the base with alternate strips of matt and smooth layers. Preferably, the smooth layer is an anti-halation layer which will dissolve in alkaline developers, e.g. a layer as described in Specification 565,125, and the matt layer is similar but contains a small amount of boric acid. If applied by dusting on in powdered form, the matt layer may be polyvinyl phthalate, a rosin maleic anhydride condensation product prepared as described in Specification 355,281, [Group IV], or a glyptal resin such as that sold under the Registered Trade Mark " Abralac P."
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE476294D BE476294A (en) | 1946-01-31 | ||
| GB313046A GB613134A (en) | 1946-01-31 | 1946-01-31 | Improvements in photographic materials |
| FR953645D FR953645A (en) | 1946-01-31 | 1947-09-30 | Improvements to photosensitive products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB313046A GB613134A (en) | 1946-01-31 | 1946-01-31 | Improvements in photographic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB613134A true GB613134A (en) | 1948-11-23 |
Family
ID=9752489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB313046A Expired GB613134A (en) | 1946-01-31 | 1946-01-31 | Improvements in photographic materials |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE476294A (en) |
| FR (1) | FR953645A (en) |
| GB (1) | GB613134A (en) |
-
0
- BE BE476294D patent/BE476294A/xx unknown
-
1946
- 1946-01-31 GB GB313046A patent/GB613134A/en not_active Expired
-
1947
- 1947-09-30 FR FR953645D patent/FR953645A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR953645A (en) | 1949-12-09 |
| BE476294A (en) |
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