CA995961A - Silver halide photographic emulsions - Google Patents

Silver halide photographic emulsions

Info

Publication number
CA995961A
CA995961A CA128,505A CA128505A CA995961A CA 995961 A CA995961 A CA 995961A CA 128505 A CA128505 A CA 128505A CA 995961 A CA995961 A CA 995961A
Authority
CA
Canada
Prior art keywords
silver halide
halide photographic
photographic emulsions
emulsions
silver
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
CA128,505A
Other versions
CA128505S (en
Inventor
Yoshihide Hayakawa
Masaji Yoshida
Yoshiyuki Nakazawa
Yashuharu Nakamura
Akira Sato
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 CA995961A publication Critical patent/CA995961A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • C09B23/102—The polymethine chain containing an even number of >CH- groups two heterocyclic rings linked carbon-to-carbon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • 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
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • G03C1/22—Methine and polymethine dyes with an even number of CH groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (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)
CA128,505A 1970-11-25 1971-11-25 Silver halide photographic emulsions Expired CA995961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10395570A JPS4842968B1 (en) 1970-11-25 1970-11-25

Publications (1)

Publication Number Publication Date
CA995961A true CA995961A (en) 1976-08-31

Family

ID=14367815

Family Applications (1)

Application Number Title Priority Date Filing Date
CA128,505A Expired CA995961A (en) 1970-11-25 1971-11-25 Silver halide photographic emulsions

Country Status (6)

Country Link
JP (1) JPS4842968B1 (en)
BE (1) BE775796A (en)
CA (1) CA995961A (en)
DE (1) DE2158553A1 (en)
FR (1) FR2115981A5 (en)
GB (1) GB1343719A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303934B (en) * 1995-07-31 1998-10-28 Agfa Gevaert Ag Black and white paper with variable gradation
GB2316754B (en) * 1996-08-30 2000-09-27 Ilford Ltd Variable contrast photographic material
DE19960108A1 (en) * 1999-12-14 2001-07-12 Agfa Gevaert Ag Black-and-white photographic paper with silver halide emulsion for alternating analog and digital laser exposures is sensitized over the 430-525 nm range, especially by blue and green sensitizers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE588862A (en) * 1959-03-23
BE598522A (en) * 1959-12-24
JPS4838408A (en) * 1971-09-17 1973-06-06

Also Published As

Publication number Publication date
BE775796A (en) 1972-03-16
FR2115981A5 (en) 1972-07-07
DE2158553A1 (en) 1972-05-31
JPS4842968B1 (en) 1973-12-15
GB1343719A (en) 1974-01-16

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