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

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
NL55621C (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

Similar Documents

Publication Publication Date Title
GB1031902A (en) Improvements in silver halide photography
GB1128840A (en) Supersensitised silver halide emulsions
US1962133A (en) Photographic emulsion containing certain disulphides as antifoggants
GB658575A (en) Phenoxyalkylamines as accelerators for photographic developers
GB984381A (en) Improvements in silver halide emulsions
GB615880A (en) Improvements in or relating to silver halide photographic emulsions
GB580497A (en) Improvements in sensitive silver salt emulsions and developing-out processes therefor
GB583648A (en) Improvements in photographic materials
GB974723A (en) Light sensitive gelatino-silver halide photographic emulsions
GB658826A (en) Improvements in or relating to photographic emulsions
GB904462A (en) Improved photographic processes
GB882632A (en) Sensitizers for photographic emulsions
GB1139098A (en) Improvements in or relating to photographic developers
GB1267731A (en) Improvements in or relating to photographic materials
GB614701A (en) Improvements in or relating to photographic materials and processing solutions therefor
GB1184138A (en) Improvements in or relating to Silver Halide Photographic Emulsions
GB1040394A (en) Improvements in and relating to the manufacture of photo-sensitive films
GB1298542A (en) Development of silver halide photographic materials
GB1195838A (en) A Method of Producing Photographic Images
GB722231A (en) Improvements in mixed grain photographic emulsions
GB580173A (en) Improvements in or relating to photographic processes
GB707704A (en) Improvements in or relating to direct positive photographic emulsions
GB1257983A (en)
GB795042A (en) High speed, print-out emulsions
GB928153A (en) Improved direct positive photographic emulsions