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GB615880A - Improvements in or relating to silver halide photographic emulsions - Google Patents

Improvements in or relating to silver halide photographic emulsions

Info

Publication number
GB615880A
GB615880A GB24736/46A GB2473646A GB615880A GB 615880 A GB615880 A GB 615880A GB 24736/46 A GB24736/46 A GB 24736/46A GB 2473646 A GB2473646 A GB 2473646A GB 615880 A GB615880 A GB 615880A
Authority
GB
United Kingdom
Prior art keywords
silver chloride
silver halide
emulsion
relating
isoquinoline
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
GB24736/46A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB24736/46A priority Critical patent/GB615880A/en
Priority to US768498A priority patent/US2512721A/en
Publication of GB615880A publication Critical patent/GB615880A/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
    • G03C1/35—Antiplumming agents, i.e. antibronzing agents; Toners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/166—Toner containing

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

615,880. Photographic silver chloride emulsions. KENDALL, J. D., and FRY, D. J. Aug. 20, 1946, No. 24736. [Class 98 (ii)] A 3-alkyl-isoquinoline such as the 3-methyl, -ethyl, -propyl, -isopropyl or -isobutyl derivative, or a mineral acid salt of the same is included in a silver chloride photographic emulsion, during its manufacture, as a blueblack agent. An example describes addition of an alcoholic solution of 3-methyl-isoquinoline to a gelatine silver chloride emulsion of the gaslight type, the coating of this on paper, exposure and development with a metolhydroquinone developer. The silver chloride emulsion may contain a small proportion of other silver halide.
GB24736/46A 1946-08-20 1946-08-20 Improvements in or relating to silver halide photographic emulsions Expired GB615880A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB24736/46A GB615880A (en) 1946-08-20 1946-08-20 Improvements in or relating to silver halide photographic emulsions
US768498A US2512721A (en) 1946-08-20 1947-08-13 Silver halide photographic emulsions containing a blue black toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24736/46A GB615880A (en) 1946-08-20 1946-08-20 Improvements in or relating to silver halide photographic emulsions

Publications (1)

Publication Number Publication Date
GB615880A true GB615880A (en) 1949-01-12

Family

ID=10216443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24736/46A Expired GB615880A (en) 1946-08-20 1946-08-20 Improvements in or relating to silver halide photographic emulsions

Country Status (2)

Country Link
US (1) US2512721A (en)
GB (1) GB615880A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE403307A (en) * 1933-05-24
BE467068A (en) * 1942-02-02
US2398778A (en) * 1942-11-24 1946-04-23 Eastman Kodak Co Sensitized photographic emulsion

Also Published As

Publication number Publication date
US2512721A (en) 1950-06-27

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