GB191401795A - Improvements in Photographic Developers. - Google Patents

Improvements in Photographic Developers.

Info

Publication number
GB191401795A
GB191401795A GB191401795DA GB191401795A GB 191401795 A GB191401795 A GB 191401795A GB 191401795D A GB191401795D A GB 191401795DA GB 191401795 A GB191401795 A GB 191401795A
Authority
GB
United Kingdom
Prior art keywords
metol
hydroquinone
combination
developer
photographic 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
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.)
UNION PHOTOGRAPHIQUE IND ETABL
Original Assignee
UNION PHOTOGRAPHIQUE IND ETABL
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 UNION PHOTOGRAPHIQUE IND ETABL filed Critical UNION PHOTOGRAPHIQUE IND ETABL
Application granted granted Critical
Publication of GB191401795A publication Critical patent/GB191401795A/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
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB191401795D 1913-04-19 1914-01-22 Improvements in Photographic Developers. Expired GB191401795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191401795X 1913-04-19

Publications (1)

Publication Number Publication Date
GB191401795A true GB191401795A (en) 1914-08-20

Family

ID=32606961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191401795D Expired GB191401795A (en) 1913-04-19 1914-01-22 Improvements in Photographic Developers.

Country Status (3)

Country Link
DE (1) DE345471C (enrdf_load_stackoverflow)
FR (1) FR468338A (enrdf_load_stackoverflow)
GB (1) GB191401795A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR468338A (fr) 1914-07-03
DE345471C (enrdf_load_stackoverflow)

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