US3738846A - Fogged direct positive silver halide emulsion containing a sulfonatedtriphenylmethane dye - Google Patents

Fogged direct positive silver halide emulsion containing a sulfonatedtriphenylmethane dye Download PDF

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Publication number
US3738846A
US3738846A US00134046A US3738846DA US3738846A US 3738846 A US3738846 A US 3738846A US 00134046 A US00134046 A US 00134046A US 3738846D A US3738846D A US 3738846DA US 3738846 A US3738846 A US 3738846A
Authority
US
United States
Prior art keywords
silver halide
direct positive
silver
group
dye
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 - Lifetime
Application number
US00134046A
Other languages
English (en)
Inventor
H Kamano
H Kato
T Kobayashi
K Inoue
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of US3738846A publication Critical patent/US3738846A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
    • G03C1/4853—Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes

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  • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US00134046A 1970-04-14 1971-04-14 Fogged direct positive silver halide emulsion containing a sulfonatedtriphenylmethane dye Expired - Lifetime US3738846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45031854A JPS4912653B1 (enrdf_load_stackoverflow) 1970-04-14 1970-04-14

Publications (1)

Publication Number Publication Date
US3738846A true US3738846A (en) 1973-06-12

Family

ID=12342622

Family Applications (1)

Application Number Title Priority Date Filing Date
US00134046A Expired - Lifetime US3738846A (en) 1970-04-14 1971-04-14 Fogged direct positive silver halide emulsion containing a sulfonatedtriphenylmethane dye

Country Status (7)

Country Link
US (1) US3738846A (enrdf_load_stackoverflow)
JP (1) JPS4912653B1 (enrdf_load_stackoverflow)
BE (1) BE765715A (enrdf_load_stackoverflow)
CA (1) CA980162A (enrdf_load_stackoverflow)
DE (1) DE2118115C3 (enrdf_load_stackoverflow)
FR (1) FR2089635A5 (enrdf_load_stackoverflow)
GB (1) GB1335422A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867149A (en) * 1972-05-04 1975-02-18 Konishiroku Photo Ind Fogged, direct-positive silver halide photographic material containing a rhodium salt desensitizer and a bispyrazolone dye stabilizer
US4497894A (en) * 1982-09-22 1985-02-05 Mitsubishi Paper Mills, Ltd. Colored silver halide photographic photosensitive materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867149A (en) * 1972-05-04 1975-02-18 Konishiroku Photo Ind Fogged, direct-positive silver halide photographic material containing a rhodium salt desensitizer and a bispyrazolone dye stabilizer
US4497894A (en) * 1982-09-22 1985-02-05 Mitsubishi Paper Mills, Ltd. Colored silver halide photographic photosensitive materials

Also Published As

Publication number Publication date
CA980162A (en) 1975-12-23
DE2118115B2 (enrdf_load_stackoverflow) 1974-10-17
JPS4912653B1 (enrdf_load_stackoverflow) 1974-03-26
BE765715A (fr) 1971-08-30
DE2118115A1 (de) 1971-10-28
FR2089635A5 (enrdf_load_stackoverflow) 1972-01-07
GB1335422A (en) 1973-10-31
DE2118115C3 (de) 1975-06-05

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