GB1151363A - A Method of Producing Photographic Images - Google Patents

A Method of Producing Photographic Images

Info

Publication number
GB1151363A
GB1151363A GB1931166A GB1931166A GB1151363A GB 1151363 A GB1151363 A GB 1151363A GB 1931166 A GB1931166 A GB 1931166A GB 1931166 A GB1931166 A GB 1931166A GB 1151363 A GB1151363 A GB 1151363A
Authority
GB
United Kingdom
Prior art keywords
layer
compound
silver halide
emulsion
positive
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
Application number
GB1931166A
Inventor
Gerard Laurens Vanreusel
Paul Desire Van Pee
Jules Maria De Laet
Jozef Frans Willems
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to GB1931166A priority Critical patent/GB1151363A/en
Publication of GB1151363A publication Critical patent/GB1151363A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485Direct positive emulsions
    • G03C1/48538Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1,151,363. Photographic silver halide positive image process. GEVAERT-AGFA N.V. May 2, 1966 [April 30, 1965], No.19311/66. Heading G2C. Positive photographic images are produced by imagewise exposing a photographic element containing a layer of a silver halide emulsion which forms mainly internal latent image, at least one compound which releases iodide ion and/ or at least one which releases bromide ion in an aq. medium being present in the emulsion or another layer of the element and developing in a surface developer while overall exposing to light. The compounds may be iodides and/or bromides of Ca, NH 4 , Li, Mg, K, Na, Ba, Cd and Zn, organic onium (including phosphonium and iodonium) iodides and bromides, and organic compounds with labile iodine and bromine atoms e.g. monoiodo- and monobromoacetic acid and potassium 4-iodobutane sulphonate. The compound may be incorporated into the material by soaking the material in an aq. soln. of the compound, or by adding the compound directly to the binder of any layer. The material may also contain an antifoggant, preferably in greater than fog-inhibiting amounts, in effective contact with silver halide emulsion layer, and those specified include tetrazoline-thiones and 2-mercapto-ethyl-carbanilate. The binder for the emulsion may include polyvinylpyrrolidone. The process may be used in conjunction with colour couplers and developers to give multi-layer positive colour materials.
GB1931166A 1965-04-30 1965-04-30 A Method of Producing Photographic Images Expired GB1151363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1931166A GB1151363A (en) 1965-04-30 1965-04-30 A Method of Producing Photographic Images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1931166A GB1151363A (en) 1965-04-30 1965-04-30 A Method of Producing Photographic Images

Publications (1)

Publication Number Publication Date
GB1151363A true GB1151363A (en) 1969-05-07

Family

ID=10127274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1931166A Expired GB1151363A (en) 1965-04-30 1965-04-30 A Method of Producing Photographic Images

Country Status (1)

Country Link
GB (1) GB1151363A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211728A1 (en) * 1971-03-10 1972-09-21 Eastman Kodak Co , Rochester, N Y (V St A ) Process for making positive photographic images
FR2172253A1 (en) * 1972-02-18 1973-09-28 Agfa Gevaert
US4268621A (en) * 1978-07-29 1981-05-19 Konishiroku Photo Industry Co., Ltd. Direct positive photographic material
US4279987A (en) * 1978-11-14 1981-07-21 Konishiroku Photo Industry Co., Ltd. Light-sensitive, direct positive silver halide photographic material
EP0204530A2 (en) 1985-05-31 1986-12-10 Konica Corporation Method for forming direct positive color image
US4801520A (en) * 1986-07-18 1989-01-31 Fuji Photo Film Co., Ltd. Direct positive color light-sensitive material comprising a DIR coupler and a pyrazoloazole coupler, and a process for forming a direct positive image
EP0318987A1 (en) 1987-12-02 1989-06-07 Fuji Photo Film Co., Ltd. Direct positive photographic lightsensitive material
US4910130A (en) * 1986-11-25 1990-03-20 Konica Corporation Direct positive light-sensitive silver halide photographic material
EP0782042A2 (en) 1995-12-27 1997-07-02 Fuji Photo Film Co., Ltd. Hydrazine compound and silver halide photographic photosensitive material comprising the same
EP0782041A2 (en) 1995-12-27 1997-07-02 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211728A1 (en) * 1971-03-10 1972-09-21 Eastman Kodak Co , Rochester, N Y (V St A ) Process for making positive photographic images
FR2172253A1 (en) * 1972-02-18 1973-09-28 Agfa Gevaert
US4268621A (en) * 1978-07-29 1981-05-19 Konishiroku Photo Industry Co., Ltd. Direct positive photographic material
US4279987A (en) * 1978-11-14 1981-07-21 Konishiroku Photo Industry Co., Ltd. Light-sensitive, direct positive silver halide photographic material
EP0204530A2 (en) 1985-05-31 1986-12-10 Konica Corporation Method for forming direct positive color image
EP0204530A3 (en) * 1985-05-31 1988-06-01 Konishiroku Photo Industry Co. Ltd. Method for forming direct positive color image
US4898807A (en) * 1985-05-31 1990-02-06 Konishiroku Photo Industry Co., Ltd. Method for forming direct positive color image using an N-hydroxy alkyl-substituted-P-phenyldiamine derivative at elevated temperatures for a short period of time
US4801520A (en) * 1986-07-18 1989-01-31 Fuji Photo Film Co., Ltd. Direct positive color light-sensitive material comprising a DIR coupler and a pyrazoloazole coupler, and a process for forming a direct positive image
US4910130A (en) * 1986-11-25 1990-03-20 Konica Corporation Direct positive light-sensitive silver halide photographic material
EP0318987A1 (en) 1987-12-02 1989-06-07 Fuji Photo Film Co., Ltd. Direct positive photographic lightsensitive material
EP0782042A2 (en) 1995-12-27 1997-07-02 Fuji Photo Film Co., Ltd. Hydrazine compound and silver halide photographic photosensitive material comprising the same
EP0782041A2 (en) 1995-12-27 1997-07-02 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material

Similar Documents

Publication Publication Date Title
JPS5269613A (en) Direct positive silver halide light sensitive material
GB1151363A (en) A Method of Producing Photographic Images
JPS561041A (en) Manufacture of silver halide photographic emulsion
GB1342522A (en) Photosensitive heat-processable photographic materials
GB746186A (en) Improvements in processes of photographic reproduction and in light-sensitive materials therefor
JPS55138742A (en) Silver halide emulsion developing method
DE2964976D1 (en) Photographic image enhancement method employing luminescence
GB1131238A (en) Radiation sensitive silver-dye compounds
GB920277A (en) A process for the production of photographic silver images
GB1441612A (en) Method of making photographic silver halide materials
JPS5331133A (en) Color photographic developing agent
US3615529A (en) Rapid developing photographic materials containing arginine
US4045227A (en) Method for stabilizing silver halide photographic material
GB1257257A (en)
GB1386313A (en) Dry process of producing positive images
JPS5789749A (en) Silver halide photographic sensitive material
GB1390960A (en) Process for obtaining a high contrast photographic image
DE1153247B (en) Process for the accelerated production of direct positives using the silver salt diffusion process
GB1298082A (en) Photographic products and diffusion transfer processes
GB1146719A (en) Improvements in or relating to photographic emulsions
GB1536341A (en) Photographic silver halide material containing development inhibitor releasing couplers
GB1195837A (en) Method of Producing Photographic Images
GB1160956A (en) Improved Light-Developable Photographic Material and Recording Process
JPS52115226A (en) Toner replenishing for developing electrostatic latent image
JPS6432257A (en) Silver complex salt diffusion transfer treatment

Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee