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FR429390A - Use of quinones and their sulfonic derivatives to strengthen silver images and to turn them into different colors - Google Patents

Use of quinones and their sulfonic derivatives to strengthen silver images and to turn them into different colors

Info

Publication number
FR429390A
FR429390A FR429390A FR429390DA FR429390A FR 429390 A FR429390 A FR 429390A FR 429390 A FR429390 A FR 429390A FR 429390D A FR429390D A FR 429390DA FR 429390 A FR429390 A FR 429390A
Authority
FR
France
Prior art keywords
quinones
turn
different colors
silver images
sulfonic derivatives
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
FR429390A
Other languages
French (fr)
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.)
DES PLAQUES ET PAPIERS PHOTOGRAPHIQUES A LUMIERE E
Original Assignee
DES PLAQUES ET PAPIERS PHOTOGRAPHIQUES A LUMIERE E
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 DES PLAQUES ET PAPIERS PHOTOGRAPHIQUES A LUMIERE E filed Critical DES PLAQUES ET PAPIERS PHOTOGRAPHIQUES A LUMIERE E
Application granted granted Critical
Publication of FR429390A publication Critical patent/FR429390A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/40—Chemically transforming developed images
    • G03C5/42—Reducing; Intensifying

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
FR429390A 1910-07-16 1910-07-16 Use of quinones and their sulfonic derivatives to strengthen silver images and to turn them into different colors Expired FR429390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191025751X 1910-07-16

Publications (1)

Publication Number Publication Date
FR429390A true FR429390A (en) 1911-09-21

Family

ID=32480814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR429390A Expired FR429390A (en) 1910-07-16 1910-07-16 Use of quinones and their sulfonic derivatives to strengthen silver images and to turn them into different colors

Country Status (3)

Country Link
DE (1) DE239268C (en)
FR (1) FR429390A (en)
GB (1) GB191025751A (en)

Also Published As

Publication number Publication date
GB191025751A (en) 1911-04-27
DE239268C (en)

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