FR2065875A5 - One-stage direct positive colour photo- - graphy by diffusion transfer - Google Patents

One-stage direct positive colour photo- - graphy by diffusion transfer

Info

Publication number
FR2065875A5
FR2065875A5 FR7031428A FR7031428A FR2065875A5 FR 2065875 A5 FR2065875 A5 FR 2065875A5 FR 7031428 A FR7031428 A FR 7031428A FR 7031428 A FR7031428 A FR 7031428A FR 2065875 A5 FR2065875 A5 FR 2065875A5
Authority
FR
France
Prior art keywords
layer
dye
transparent support
forming material
image receiving
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
FR7031428A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR2065875A5 publication Critical patent/FR2065875A5/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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/02—Photosensitive materials characterised by the image-forming section
    • G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
    • 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
    • G03C8/02—Photosensitive materials characterised by the image-forming section
    • G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
    • G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors
    • G03C8/12—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors characterised by the releasing mechanism
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photographic Developing Apparatuses (AREA)

Abstract

A photographic material for diffusion transfer process comprises a transparent support carrying an image receiving layer, an opaque, light reflecting layer permeable to alkaline solutions and one or more direct positive Ag halide emulsion layer(s) associated with a dye forming material. After exposure a liquid developer is discharged by pressure members from a rupturable capsule inside the camera to form a dye at the unexposed points with the dye forming material distributed as a function of the exposure. This dye diffuses through the opaque layer and forms a positive image on the image receiving sheet next to the transparent support layer. At the exposed parts the dye forming material does not react with the developer and is not diffusible. Accordingly the image receiving sheet does not have to be detached from the negative layer as in prior art and the positive image is protected after removal from the camera by the transparent support. Timing of the development is also eliminated.
FR7031428A 1969-10-24 1970-08-28 One-stage direct positive colour photo- - graphy by diffusion transfer Expired FR2065875A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86918969A 1969-10-24 1969-10-24
US2799170A 1970-04-13 1970-04-13

Publications (1)

Publication Number Publication Date
FR2065875A5 true FR2065875A5 (en) 1971-08-06

Family

ID=26703124

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7031428A Expired FR2065875A5 (en) 1969-10-24 1970-08-28 One-stage direct positive colour photo- - graphy by diffusion transfer

Country Status (5)

Country Link
JP (1) JPS4921661B1 (en)
BE (1) BE757960A (en)
CA (1) CA928560A (en)
DE (1) DE2052130B2 (en)
FR (1) FR2065875A5 (en)

Also Published As

Publication number Publication date
DE2052130C3 (en) 1974-10-31
DE2052130A1 (en) 1971-04-29
DE2052130B2 (en) 1974-03-28
JPS4921661B1 (en) 1974-06-03
BE757960A (en) 1971-04-23
CA928560A (en) 1973-06-19

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Legal Events

Date Code Title Description
ST Notification of lapse