GB736123A - Developers for photographic papers - Google Patents

Developers for photographic papers

Info

Publication number
GB736123A
GB736123A GB9637/53A GB963753A GB736123A GB 736123 A GB736123 A GB 736123A GB 9637/53 A GB9637/53 A GB 9637/53A GB 963753 A GB963753 A GB 963753A GB 736123 A GB736123 A GB 736123A
Authority
GB
United Kingdom
Prior art keywords
stilbene
photographic
stilbenes
amino
developers
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
GB9637/53A
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.)
Photographica Gesellschaft fuer Photographische Industrie mbH
Original Assignee
Photographica Gesellschaft fuer Photographische Industrie mbH
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 Photographica Gesellschaft fuer Photographische Industrie mbH filed Critical Photographica Gesellschaft fuer Photographische Industrie mbH
Publication of GB736123A publication Critical patent/GB736123A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29Development processes or agents therefor
    • G03C5/305Additives other than developers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/134Brightener containing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Color Printing (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

736,123. Photographic developers. TAUSCH, E., and PHOTOGRAPHICA GES. FUR PHOTOGRAPHISCHE INDUSTRIE. April 9,1953 [April 10, 1952], No. 9637/53. Class 98(2). A photographic developer for the processing of exposed photographic papers contains a substantially colourless fluorescent organic substance which will absorb ultra-violet radiation of between about 3000 to 4000 angstrom units and emit light of between about 4000 to 5500 anstrom units, and which will attach itself in substantive manner to the paper or its coatings. Numerous compounds are specified, including 4 : 41 - di - (acylamino) - stilbenes, 4 : 41 - di - (ureido) - stilbenes, 4: 4<SP>1</SP> - di- [triazin - (1<SP>11</SP> : 3<SP>11</SP> : 5<SP>11</SP>) - yl - (2<SP>1</SP>) - amino)]- stilbenes, unsymmetrical stilbene derivatives such as 4-ureido-4<SP>1</SP>-acylaminostilbenes and 4- [triazin - (1<SP>11</SP> : 3<SP>11</SP> : 511) - yl - (2<SP>11</SP>) - amino]- 41 - acylaminostilbenes, α : # - di - [benzimidazolyl - (2)] - ethylenes, and 4 : 5 - diarylimidazolones-(2), which are substantive to the emulsion and its support. In examples 1 to 3, a : # - di - [(x) - sulphobenzimidazolyl - (2)]- ethylene, sodium 4 : 41 - di - (phenylureido), stilbene - 2 :2<SP>1</SP> - disulphonate, and sodium 4 : 41 - di - [4<SP>11</SP> - hydroxy - 611 - anilinotriazin- (1<SP>11</SP> : 3<SP>11</SP> : 5<SP>11</SP>) - yl - (2) - amino] - stilbene- 2 :2<SP>1</SP>-disulphonate respectively are added to p - methylaminophenol sulphate - hydroquinone developers for photographic prints. In example 4, the stilbene derivative of example 3 is added to a colour developer. Specifications 624,052 and 645,413, [both in Group IV (c)], are referred to. ______
GB9637/53A 1952-04-10 1953-04-09 Developers for photographic papers Expired GB736123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP7453A DE971467C (en) 1952-04-10 1952-04-10 Developer for photographic silver halide papers

Publications (1)

Publication Number Publication Date
GB736123A true GB736123A (en) 1955-08-31

Family

ID=7361193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9637/53A Expired GB736123A (en) 1952-04-10 1953-04-09 Developers for photographic papers

Country Status (3)

Country Link
US (1) US2815284A (en)
DE (1) DE971467C (en)
GB (1) GB736123A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949537A (en) * 1982-09-14 1984-03-22 Konishiroku Photo Ind Co Ltd Method for processing silver halide photosensitive material
JPH07117740B2 (en) * 1987-12-11 1995-12-18 富士写真フイルム株式会社 Processing method of silver halide color photographic light-sensitive material

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE498125A (en) *
GB442530A (en) * 1934-08-08 1936-02-10 Ici Ltd Improvements in the preparation of safety paper
US2316595A (en) * 1938-03-23 1943-04-13 Kallmann Hartmut Israel Photographic plate or film for the investigation of bodies or substances by means of neutrons
GB522672A (en) * 1939-06-02 1940-06-24 Meyer Hans Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance
FR878823A (en) * 1941-02-18 1943-02-04 Ig Farbenindustrie Ag Process for emphasizing whites and the luminous power of the surface color of photographic images
NL58372C (en) * 1941-02-18
US2303917A (en) * 1942-04-01 1942-12-01 Eastman Kodak Co Luminescent material
US2639900A (en) * 1948-12-11 1953-05-26 Henry G Schaefer Simplified space heating radiator mounted on pipe
GB672803A (en) * 1949-09-16 1952-05-28 Kodak Ltd Improvements in sensitive photographic papers
FR1000735A (en) * 1949-11-16 1952-02-15 Lumiere Soc Improvements to papers and other photographic surfaces
BE502230A (en) * 1950-04-06

Also Published As

Publication number Publication date
US2815284A (en) 1957-12-03
DE971467C (en) 1959-01-29

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