GB1316831A - Supersensitised silver halide photographic emulsions - Google Patents

Supersensitised silver halide photographic emulsions

Info

Publication number
GB1316831A
GB1316831A GB2969370A GB2969370A GB1316831A GB 1316831 A GB1316831 A GB 1316831A GB 2969370 A GB2969370 A GB 2969370A GB 2969370 A GB2969370 A GB 2969370A GB 1316831 A GB1316831 A GB 1316831A
Authority
GB
United Kingdom
Prior art keywords
alkyl
halogen
silver halide
substituted alkyl
unneutralised
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
GB2969370A
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
Publication of GB1316831A publication Critical patent/GB1316831A/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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

Landscapes

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

Abstract

1316831 Supersensitized silver halide photographic emulsions FUJI PHOTO FILM CO Ltd 18 June 1970 [19 June 1969] 29693/70 Heading G2C A photographic silver halide emulsion contains at least one sensitizing dye of the formula: wherein A is 1-4C alkyl; R<SP>3</SP> is halogen, OH, phenyl or tolyl; R<SP>4</SP> is H, halogen, phenyl, OH, aralkyl, alkyl or alkoxyl; R<SP>1</SP> and R<SP>2</SP> are each alkyl or neutralised or unneutralised sulphoalkyl; X<SP>1-</SP> is an acid anion; and n is 0 or 1, n being 0 when one of R<SP>1</SP> and R<SP>2</SP> is sulphoalkyl; and in supersensitizing combination therewith at least one sensitizing dye of the formula: - wherein R<SP>5</SP> and R<SP>6</SP> are each alkyl or substituted alkyl; R<SP>7</SP> and R<SP>8</SP> are each alkyl or substituted alkyl, at least one of R<SP>7</SP> and R<SP>8</SP> being neutralised or unneutralised sulphoalkyl or substituted alkyl having a neutralised or unneutralised sulpho group; R<SP>9</SP>, R<SP>10</SP>, R<SP>11</SP> and R<SP>12</SP> are each H, alkylsulphonyl, alkylsulphamoyl, N, N-disubstituted aminosulphonyl, alkylcarbamoyl, N, N-disubstituted carbamoyl, CN, CF 3 or halogen; X<SP>2-</SP> is an acid anion; and m is 0 or 1, m being 0 when one of R<SP>7</SP> and R<SP>8</SP> is a substituent having a sulpho group; at least one of R<SP>5</SP>, R<SP>6</SP>, R<SP>7</SP> and R<SP>8</SP> being an acetoxyalkyl, a hydroxyalkyl, a substituted alkyl having a sulpho group, or an allyl group when R<SP>9</SP>, R<SP>10</SP>, R<SP>11</SP>, and R<SP>12</SP> are all H and/or halogen; the cases (i) in which R<SP>3</SP> and R<SP>4</SP> are both phenyl and also R<SP>9</SP>, R<SP>10</SP>, R<SP>11</SP> and R<SP>12</SP> are H or Cl and (ii) in which R<SP>11</SP> and R<SP>12</SP> or R<SP>9</SP> and R<SP>10</SP> are both CN or CF 3 being excluded. Many examples of these dyes are given. In the examples the emulsion also contains as magenta coupler 1-(3-sulpho-4- phenoxyphenyl) -3-heptadecyl-pyrazol-5-one. Little colour stain is caused by these sensitizing dyes after development and the sensitivity of the emulsion in the region 500-530 mÁ is increased.
GB2969370A 1969-06-19 1970-06-18 Supersensitised silver halide photographic emulsions Expired GB1316831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4860669A JPS4825652B1 (en) 1969-06-19 1969-06-19

Publications (1)

Publication Number Publication Date
GB1316831A true GB1316831A (en) 1973-05-16

Family

ID=12808059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2969370A Expired GB1316831A (en) 1969-06-19 1970-06-18 Supersensitised silver halide photographic emulsions

Country Status (5)

Country Link
JP (1) JPS4825652B1 (en)
BE (1) BE752038A (en)
DE (1) DE2030326A1 (en)
FR (1) FR2046893B1 (en)
GB (1) GB1316831A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49141753U (en) * 1973-04-06 1974-12-06
JPS49144166U (en) * 1973-04-11 1974-12-12
JPS58152347A (en) * 1982-03-08 1983-09-09 Toshiba Corp Color picture tube
JPS59116647A (en) 1982-12-13 1984-07-05 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS61245151A (en) 1985-04-23 1986-10-31 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS61251852A (en) 1985-04-30 1986-11-08 Konishiroku Photo Ind Co Ltd Method for processing silver halide color photographic sensitive material
JPS61250643A (en) 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS61250645A (en) 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
DE3682128D1 (en) 1985-07-17 1991-11-28 Konishiroku Photo Ind PHOTOGRAPHIC SILVER HALOGENID MATERIAL.
AU591540B2 (en) 1985-12-28 1989-12-07 Konishiroku Photo Industry Co., Ltd. Method of processing light-sensitive silver halide color photographic material
DE69131785T2 (en) 1990-08-20 2000-05-11 Fuji Photo Film Co Ltd Data-preserving photographic film product and method for producing a color image

Also Published As

Publication number Publication date
FR2046893B1 (en) 1973-01-12
JPS4825652B1 (en) 1973-07-31
BE752038A (en) 1970-12-01
DE2030326A1 (en) 1971-01-07
FR2046893A1 (en) 1971-03-12

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years