GB1336361A - Photographic silver halide products and diffusion transfer processes - Google Patents
Photographic silver halide products and diffusion transfer processesInfo
- Publication number
- GB1336361A GB1336361A GB212471A GB212471A GB1336361A GB 1336361 A GB1336361 A GB 1336361A GB 212471 A GB212471 A GB 212471A GB 212471 A GB212471 A GB 212471A GB 1336361 A GB1336361 A GB 1336361A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- silver halide
- image
- support
- halide emulsion
- 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
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/42—Structural details
- G03C8/44—Integral units, i.e. the image-forming section not being separated from the image-receiving section
- G03C8/48—Integral units, i.e. the image-forming section not being separated from the image-receiving section characterised by substances used for masking the image-forming section
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1336361 Photographic diffusion transfer film unit POLAROID CORP 15 Jan 1971 [19 Jan 1970] 2124/71 Heading G2C A photographic film unit, for forming by diffusion transfer a composite print in which a positive image is formed over a negative image the composite print being viewable without separation of the two images as a positive reflection print, comprises a photo-sensitive laminate comprising a support, a photo-sensitive silver halide emulsion layer, a polymeric image-receiving layer and, between the silver halide emulsion and image-receiving layer, a layer comprising a dispersion of reflecting inorganic pigment having a first mean particle size, which layer transmits incident actinic radiation to expose the photosensitive silver halide emulsion layer and which dispersion upon contact with alkaline processing composition provides a dispersion of the pigment having a second, larger, mean particle size such that the dispersion is effective to mask imageforming material in the silver halide emulsion layer. The pigment may be titanium dioxide. The first particle size may be less than 0À2 microns and the second particle size greater than 0À2 microns. The support may be opaque and the image-receiving layer may be distant from the opaque support and a transparent cover sheet may cover the image-receiving layer or maybe connected to the opaque support and be capable of covering the image-receiving layer. Alternatively the support may be transparent, the silver halide layer may be distant from the transparent support and a second sheet may cover the silver halide layer or may be connected to the transparent support and be capable of covering the silver halide layer. The film unit may contain a rupturable container that contains alkaline processing composition positioned to discharge the composition between the laminate and the second sheet. The processing composition may contain an opacifying agent. Each silver halide emulsion layer may have associated therewith a compound providing a dye image forming material e. g. a dye-developer. The film unit may contain an acidic layer. The film units and processes of Specification 1326035 are disclaimed. Film units and processes in which the present invention is usable are described and claimed in Specification 1336362.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US369170A | 1970-01-19 | 1970-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336361A true GB1336361A (en) | 1973-11-07 |
Family
ID=21707105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB212471A Expired GB1336361A (en) | 1970-01-19 | 1971-01-15 | Photographic silver halide products and diffusion transfer processes |
Country Status (6)
Country | Link |
---|---|
AU (1) | AU2441771A (en) |
BE (1) | BE761709A (en) |
CA (1) | CA951166A (en) |
DE (1) | DE2102427C2 (en) |
GB (1) | GB1336361A (en) |
NL (1) | NL7100696A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778271A (en) * | 1971-10-22 | 1973-12-11 | Polaroid Corp | Photographic products comprising an opacifying agent in association with a reflecting agent |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1220474A (en) * | 1967-03-10 | 1971-01-27 | Polaroid Corp | Photographic colour transfer materials and process |
-
1971
- 1971-01-15 GB GB212471A patent/GB1336361A/en not_active Expired
- 1971-01-18 AU AU24417/71A patent/AU2441771A/en not_active Expired
- 1971-01-18 BE BE761709A patent/BE761709A/en not_active IP Right Cessation
- 1971-01-19 CA CA103,113,A patent/CA951166A/en not_active Expired
- 1971-01-19 DE DE19712102427 patent/DE2102427C2/en not_active Expired
- 1971-01-19 NL NL7100696A patent/NL7100696A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA951166A (en) | 1974-07-16 |
DE2102427C2 (en) | 1982-12-02 |
NL7100696A (en) | 1971-07-21 |
BE761709A (en) | 1971-07-19 |
AU2441771A (en) | 1972-07-20 |
DE2102427A1 (en) | 1971-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |