GB999166A - Improvements in or relating to light scattering photographic materials - Google Patents
Improvements in or relating to light scattering photographic materialsInfo
- Publication number
- GB999166A GB999166A GB3897/64A GB389764A GB999166A GB 999166 A GB999166 A GB 999166A GB 3897/64 A GB3897/64 A GB 3897/64A GB 389764 A GB389764 A GB 389764A GB 999166 A GB999166 A GB 999166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light scattering
- photographic materials
- jan
- treatment
- relating
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
999,166. Treating light scattering photographic materials. KALVAR CORPORATION. Jan. 29,1964 [Jan. 29,1963], No. 3897/64. Addition to 874,698. Heading G2C. Light scattering elements are treated prior to exposure and development, with steam or water vapour at a temperature sufficiently high and for a period sufficiently long that the gamma value of the material is reduced, the temperature and duration of the treatment being not so high and not so long, that the element is damaged by the treatment. Preferably dry saturated steam at 212‹F. is employed. The light scattering material may contain p-diazodimethylaniline zinc chloride as photolytic agent and a copolymer of vinylidene chloride or ethyl acrylate with acrylonitrile or a homopolymer of methacrylonitrile as vehicle therefor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0038943 | 1959-10-19 | ||
US254560A US3149971A (en) | 1959-10-19 | 1963-01-29 | Method for improving gradation of light scattering photographic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB999166A true GB999166A (en) | 1965-07-21 |
Family
ID=25983201
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34827/59A Expired GB874698A (en) | 1959-10-19 | 1959-10-14 | Improvements in and relating to light scattering photographic materials |
GB3897/64A Expired GB999166A (en) | 1959-10-19 | 1964-01-29 | Improvements in or relating to light scattering photographic materials |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34827/59A Expired GB874698A (en) | 1959-10-19 | 1959-10-14 | Improvements in and relating to light scattering photographic materials |
Country Status (3)
Country | Link |
---|---|
US (1) | US3149971A (en) |
DE (2) | DE1422445A1 (en) |
GB (2) | GB874698A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3386826A (en) * | 1964-05-08 | 1968-06-04 | Ibm | Process for producing improved diazotype elements |
US3841874A (en) * | 1971-03-15 | 1974-10-15 | Xidex Corp | Method for improving the photographic characteristics of vesicular photographic materials |
DE2805680C2 (en) * | 1977-03-01 | 1982-05-27 | Bexford Ltd., London | Recording materials for the vesicular process and processes for increasing the photosensitivity of such recording materials |
EP0033200B1 (en) * | 1980-01-24 | 1984-02-29 | Bexford Limited | Process for the production of vesicular recording materials |
US4508808A (en) * | 1982-11-12 | 1985-04-02 | Xidex Corporation | Method of using diazotype photographic materials with preexposure treatment to form uniform sites of refractive index change |
-
1959
- 1959-10-14 GB GB34827/59A patent/GB874698A/en not_active Expired
- 1959-10-19 DE DE19591422445 patent/DE1422445A1/en active Pending
-
1963
- 1963-01-29 US US254560A patent/US3149971A/en not_active Expired - Lifetime
-
1964
- 1964-01-28 DE DE1447734A patent/DE1447734C3/en not_active Expired
- 1964-01-29 GB GB3897/64A patent/GB999166A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1447734A1 (en) | 1969-01-02 |
DE1447734B2 (en) | 1974-10-10 |
GB874698A (en) | 1961-08-10 |
US3149971A (en) | 1964-09-22 |
DE1447734C3 (en) | 1975-06-05 |
DE1422445A1 (en) | 1969-01-16 |
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