GB1403018A - Photographic direct-positive process - Google Patents

Photographic direct-positive process

Info

Publication number
GB1403018A
GB1403018A GB3736572A GB3736572A GB1403018A GB 1403018 A GB1403018 A GB 1403018A GB 3736572 A GB3736572 A GB 3736572A GB 3736572 A GB3736572 A GB 3736572A GB 1403018 A GB1403018 A GB 1403018A
Authority
GB
United Kingdom
Prior art keywords
silver halide
image
alkyl
developer
direct
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
GB3736572A
Other languages
English (en)
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1403018A publication Critical patent/GB1403018A/en
Expired legal-status Critical Current

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
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/50—Reversal development; Contact processes
    • 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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
    • G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent
    • G03C1/48561—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent hydrazine compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
GB3736572A 1971-08-10 1971-08-10 Photographic direct-positive process Expired GB1403018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7129149A FR2148902A5 (https=) 1971-08-10 1971-08-10

Publications (1)

Publication Number Publication Date
GB1403018A true GB1403018A (en) 1975-08-13

Family

ID=9081649

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3736572A Expired GB1403018A (en) 1971-08-10 1971-08-10 Photographic direct-positive process

Country Status (2)

Country Link
FR (1) FR2148902A5 (https=)
GB (1) GB1403018A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186009A (en) * 1978-05-30 1980-01-29 Eastman Kodak Company Covering power photothermographic material and process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3788600T2 (de) * 1986-07-22 1994-04-28 Fuji Photo Film Co Ltd Verfahren zur Behandlung eines farbphotographischen Silberhalogenidmaterials.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186009A (en) * 1978-05-30 1980-01-29 Eastman Kodak Company Covering power photothermographic material and process

Also Published As

Publication number Publication date
FR2148902A5 (https=) 1973-03-23

Similar Documents

Publication Publication Date Title
GB655273A (en) Improved photographic materials
GB1019222A (en) Improvements in or relating to silver halide photographic materials
GB1413748A (en) Method of making a photographic silver halide emulsion
JPS569743A (en) Photographic image forming method
US3168400A (en) Rapid processing of photographic color materials
US3062651A (en) Unhardened, fogged emulsions and method of processing to positive images
GB1308492A (en) Photographic products and processes
GB861985A (en) Improvements in or relating to the preparation of photographic emulsions
GB1027053A (en) Photographic light-sensitive materials
GB1403018A (en) Photographic direct-positive process
GB691715A (en) Improvements in or relating to photographic emulsions
US3740221A (en) Development of photographic material
GB1458764A (en) Photographic emulsions
JPS5689738A (en) Forming method for photographic image
GB1394592A (en) Method of forming image dyes in photographic materials
US3307944A (en) Mercapto-dihydrocarbyl-triazoles in diffusion transfer process
GB1053067A (https=)
GB1444463A (en) Photographic silver halide colour development process
GB1013823A (en) Viscous surface layer photographic processing compositions
GB1455831A (en) Development composition for use in colour contrast photography
GB1016369A (en) Processing colour film
GB1145144A (en) Photographic products and processes
JPS561936A (en) Photographic image forming method
GB705842A (en) Photosensitive material
GB1070301A (en) Sensitive photographic silver halide and materials

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee