GB1378577A - Photographic materials - Google Patents

Photographic materials

Info

Publication number
GB1378577A
GB1378577A GB1510072A GB1510072A GB1378577A GB 1378577 A GB1378577 A GB 1378577A GB 1510072 A GB1510072 A GB 1510072A GB 1510072 A GB1510072 A GB 1510072A GB 1378577 A GB1378577 A GB 1378577A
Authority
GB
United Kingdom
Prior art keywords
silver
layer
emulsion
haloiodide
fine
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
GB1510072A
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 GB1378577A publication Critical patent/GB1378577A/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
    • G03C1/46—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein having more than one photosensitive layer
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers

Abstract

1378577 Photographic silver halide materials EASTMAN KODAK CO 30 March 1972 [12 April 1971] 15100/72 Heading G2C A light-sensitive photographic material comprises a support carrying at least one silver haloiodide emulsion layer and over this emulsion layer a silver precipitating layer and a low sensitivity fine-grain silver halide layer in which the halide is chloride and/or bromide, the grain size is less than 0À1 micron and the speed at least 50 times less than that of the silver haloiodide layer. The silver precipitating layer may comprise metal sulphides, polysulphides, selenides or polyselenides, thiourea, stannous halides, heavy metals, particularly Carey Lea silver, or their salts and fogged silver halide. As the fine-grain silver halide layer a Lippmann silver bromide emulsion having a grain size of 0À01 to 0À05 micron and a speed at least 100 times slower than the silver haloiodide layer is preferred. In one embodiment the fine-grain emulsion is adjacent the silver haloiodide layer and the silver precipitating layer is coated thereover. The fine-grain emulsion prevents iodide ions migrating from the haloiodide layer into the developer solution and inhibiting development while the silver precipitating layer prevents silver plating out from the fine-grain emulsion on to rollers used to transport the material through the developer solutions. In an alternative embodiment the silver precipitating layer is between the fine-grain emulsion and silver haloiodide layer and prevents complexed silver halide migrating from the finegrain emulsion into the silver haloiodide layer when the material is developed in a solution containing a silver halide solvent.
GB1510072A 1971-04-12 1972-03-30 Photographic materials Expired GB1378577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13344471A 1971-04-12 1971-04-12

Publications (1)

Publication Number Publication Date
GB1378577A true GB1378577A (en) 1974-12-27

Family

ID=22458655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1510072A Expired GB1378577A (en) 1971-04-12 1972-03-30 Photographic materials

Country Status (3)

Country Link
US (1) US3737317A (en)
FR (1) FR2132675B1 (en)
GB (1) GB1378577A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166559A (en) * 1984-09-14 1986-05-08 Fuji Photo Film Co Ltd Photosensitive element for use in the silver salt diffusion transfer process
EP0202616A2 (en) 1985-05-16 1986-11-26 Konica Corporation Method for color-developing a silver halide photographic light-sensitive material
EP0204530A2 (en) 1985-05-31 1986-12-10 Konica Corporation Method for forming direct positive color image

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593737B2 (en) * 1973-06-29 1984-01-25 富士写真フイルム株式会社 Multilayer color photosensitive material
CA1057109A (en) * 1975-04-10 1979-06-26 Nicholas H. Groet Enhancement of interimage effects
US4047956A (en) * 1975-11-17 1977-09-13 E. I. Du Pont De Nemours And Company Low coating weight silver halide element and process
US4029509A (en) * 1975-11-17 1977-06-14 E. I. Du Pont De Nemours And Company Positive process using a low coating weight silver halide
DE2704797C2 (en) * 1977-02-05 1982-05-27 Agfa-Gevaert Ag, 5090 Leverkusen Color photographic recording material
JPS6014334B2 (en) * 1979-04-13 1985-04-12 コニカ株式会社 Shadow image forming method
JPS6135559Y2 (en) * 1980-12-25 1986-10-16
JPS57112751A (en) * 1980-12-29 1982-07-13 Fuji Photo Film Co Ltd Multilayered photosnsitive color reversal material
JPS6052416B2 (en) * 1982-07-16 1985-11-19 コニカ株式会社 Negative silver halide photographic material
JPS59149361A (en) * 1983-02-16 1984-08-27 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS59160135A (en) * 1983-03-02 1984-09-10 Fuji Photo Film Co Ltd Silver halide photosensitive material
JPS60128442A (en) * 1983-12-15 1985-07-09 Fuji Photo Film Co Ltd Formation of color image
EP0547983B1 (en) * 1991-12-19 1995-10-04 Eastman Kodak Company Reversal photographic element and processing thereof
FR2703479B1 (en) * 1993-04-02 1995-06-02 Kodak Pathe Photographic product comprising a mixture of emulsions of different sensitivities.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166559A (en) * 1984-09-14 1986-05-08 Fuji Photo Film Co Ltd Photosensitive element for use in the silver salt diffusion transfer process
EP0202616A2 (en) 1985-05-16 1986-11-26 Konica Corporation Method for color-developing a silver halide photographic light-sensitive material
EP0204530A2 (en) 1985-05-31 1986-12-10 Konica Corporation Method for forming direct positive color image

Also Published As

Publication number Publication date
FR2132675B1 (en) 1976-03-05
US3737317A (en) 1973-06-05
FR2132675A1 (en) 1972-11-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee