FR878823A - Procédé permettant d'accentuer les blancs et le pouvoir lumineux de la couleur de la surface des images photographiques - Google Patents

Procédé permettant d'accentuer les blancs et le pouvoir lumineux de la couleur de la surface des images photographiques

Info

Publication number
FR878823A
FR878823A FR878823DA FR878823A FR 878823 A FR878823 A FR 878823A FR 878823D A FR878823D A FR 878823DA FR 878823 A FR878823 A FR 878823A
Authority
FR
France
Prior art keywords
whites
emphasizing
photographic images
luminous power
surface color
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
Other languages
English (en)
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR878823A publication Critical patent/FR878823A/fr
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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR878823D 1941-02-18 1942-01-28 Procédé permettant d'accentuer les blancs et le pouvoir lumineux de la couleur de la surface des images photographiques Expired FR878823A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE878823X 1941-02-18

Publications (1)

Publication Number Publication Date
FR878823A true FR878823A (fr) 1943-02-04

Family

ID=6818712

Family Applications (1)

Application Number Title Priority Date Filing Date
FR878823D Expired FR878823A (fr) 1941-02-18 1942-01-28 Procédé permettant d'accentuer les blancs et le pouvoir lumineux de la couleur de la surface des images photographiques

Country Status (1)

Country Link
FR (1) FR878823A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657140A (en) * 1951-06-16 1953-10-27 Grinten Chem L V D Developer for diazotype materials
US2723197A (en) * 1951-03-23 1955-11-08 Gen Aniline & Film Corp Silver halide emulsions for black and white prints containing brightening agents
US2740793A (en) * 1956-04-03 Pyrazolines
DE946587C (de) * 1950-10-26 1956-08-02 Eastman Kodak Co Photographisches Material und Verfahren zu seiner Herstellung
DE966411C (de) * 1949-06-03 1957-08-01 Ilford Ltd Verfahren zum Verbessern der optischen Eigenschaften von Fasern und Filmen
US2815284A (en) * 1952-04-10 1957-12-03 Photographica G M B H Developers for photographic silver halide papers
US2945762A (en) * 1955-10-12 1960-07-19 Eastman Kodak Co Supersensitization of photographic emulsions using triazines
US3047390A (en) * 1957-06-06 1962-07-31 Gevaert Photo Prod Nv Method for optical bleaching coated papers
US3130046A (en) * 1959-01-07 1964-04-21 Azoplate Corp Electrophotographic reproduction material
US3181948A (en) * 1958-06-02 1965-05-04 Gevaert Photo Prod Nv Method for optical bleaching of coated papers and resultant product
US3181949A (en) * 1958-06-02 1965-05-04 Gevaert Photo Prod Nv Light sensitive elements having optical bleaching compositions coated thereon

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740793A (en) * 1956-04-03 Pyrazolines
DE966411C (de) * 1949-06-03 1957-08-01 Ilford Ltd Verfahren zum Verbessern der optischen Eigenschaften von Fasern und Filmen
DE946587C (de) * 1950-10-26 1956-08-02 Eastman Kodak Co Photographisches Material und Verfahren zu seiner Herstellung
US2723197A (en) * 1951-03-23 1955-11-08 Gen Aniline & Film Corp Silver halide emulsions for black and white prints containing brightening agents
US2657140A (en) * 1951-06-16 1953-10-27 Grinten Chem L V D Developer for diazotype materials
US2815284A (en) * 1952-04-10 1957-12-03 Photographica G M B H Developers for photographic silver halide papers
DE971467C (de) * 1952-04-10 1959-01-29 Photographica Entwickler fuer photographische Halogensilberpapiere
US2945762A (en) * 1955-10-12 1960-07-19 Eastman Kodak Co Supersensitization of photographic emulsions using triazines
US3047390A (en) * 1957-06-06 1962-07-31 Gevaert Photo Prod Nv Method for optical bleaching coated papers
US3181948A (en) * 1958-06-02 1965-05-04 Gevaert Photo Prod Nv Method for optical bleaching of coated papers and resultant product
US3181949A (en) * 1958-06-02 1965-05-04 Gevaert Photo Prod Nv Light sensitive elements having optical bleaching compositions coated thereon
US3130046A (en) * 1959-01-07 1964-04-21 Azoplate Corp Electrophotographic reproduction material

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