FR1523626A - éléments photographiques positifs directs - Google Patents

éléments photographiques positifs directs

Info

Publication number
FR1523626A
FR1523626A FR106400A FR106400A FR1523626A FR 1523626 A FR1523626 A FR 1523626A FR 106400 A FR106400 A FR 106400A FR 106400 A FR106400 A FR 106400A FR 1523626 A FR1523626 A FR 1523626A
Authority
FR
France
Prior art keywords
photographic elements
direct positive
positive photographic
direct
elements
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
FR106400A
Other languages
English (en)
Inventor
Raymond Leopold Florens
Johannes Gotze
August Randolph
Theofiel Hubert Ghys
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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
Priority claimed from GB20343/66A external-priority patent/GB1155404A/en
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to FR106400A priority Critical patent/FR1523626A/fr
Application granted granted Critical
Publication of FR1523626A publication Critical patent/FR1523626A/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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
    • G03C1/4853—Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes
    • 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
    • C09B23/105—The polymethine chain containing an even number of >CH- groups two >CH- groups
    • 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
    • C09B23/14—Styryl dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR106400A 1966-05-09 1967-05-08 éléments photographiques positifs directs Expired FR1523626A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR106400A FR1523626A (fr) 1966-05-09 1967-05-08 éléments photographiques positifs directs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB20343/66A GB1155404A (en) 1966-05-09 1966-05-09 Improved Direct Positive Emulsions
FR106400A FR1523626A (fr) 1966-05-09 1967-05-08 éléments photographiques positifs directs

Publications (1)

Publication Number Publication Date
FR1523626A true FR1523626A (fr) 1968-05-03

Family

ID=26176444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR106400A Expired FR1523626A (fr) 1966-05-09 1967-05-08 éléments photographiques positifs directs

Country Status (1)

Country Link
FR (1) FR1523626A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2921379A1 (fr) * 2007-09-21 2009-03-27 Oreal Colorant derive d'indole styryle thiol/disulfure, composition tinctoriale comprenant ce colorant, procede d'eclaircissement des matieres keratiniques a partir de ce colorant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2921379A1 (fr) * 2007-09-21 2009-03-27 Oreal Colorant derive d'indole styryle thiol/disulfure, composition tinctoriale comprenant ce colorant, procede d'eclaircissement des matieres keratiniques a partir de ce colorant

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