FR844866A - Photographic developers - Google Patents

Photographic developers

Info

Publication number
FR844866A
FR844866A FR844866DA FR844866A FR 844866 A FR844866 A FR 844866A FR 844866D A FR844866D A FR 844866DA FR 844866 A FR844866 A FR 844866A
Authority
FR
France
Prior art keywords
photographic developers
developers
photographic
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
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.)
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 FR844866A publication Critical patent/FR844866A/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
    • G03C5/305—Additives other than developers
    • G03C5/3053—Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
FR844866D 1937-10-29 1938-10-17 Photographic developers Expired FR844866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0059433 1937-10-29

Publications (1)

Publication Number Publication Date
FR844866A true FR844866A (en) 1939-08-03

Family

ID=7195009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844866D Expired FR844866A (en) 1937-10-29 1938-10-17 Photographic developers

Country Status (4)

Country Link
US (1) US2172216A (en)
BE (1) BE430669A (en)
FR (1) FR844866A (en)
GB (1) GB520753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666700A (en) * 1950-09-06 1954-01-19 Du Pont Process of preparing a light sensitive silver halide emulsion

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517111A (en) * 1946-11-14 1950-08-01 Jahoda Edward Light-sensitive blueprint layer and process of producing the same
US2541470A (en) * 1947-05-28 1951-02-13 Eastman Kodak Co Photographic silver halide developing solutions containing calcium precipitation inhibitors
US2657138A (en) * 1950-01-03 1953-10-27 Leonard A Robbins Photographic film developing composition containing beta, beta'-di-chloroethyl ether
US2860978A (en) * 1954-04-01 1958-11-18 Eastman Kodak Co Photographic washing accelerators
US2979406A (en) * 1956-04-11 1961-04-11 Gen Aniline & Film Corp Single powder photographic developers
US4340665A (en) * 1981-03-04 1982-07-20 E. I. Du Pont De Nemours And Company Silver halide film
US4816384A (en) * 1986-10-09 1989-03-28 E. I. Du Pont De Nemours And Company Powdered packaged developer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666700A (en) * 1950-09-06 1954-01-19 Du Pont Process of preparing a light sensitive silver halide emulsion

Also Published As

Publication number Publication date
GB520753A (en) 1940-05-02
US2172216A (en) 1939-09-05
BE430669A (en)

Similar Documents

Publication Publication Date Title
FR949230A (en) Improvements to photographic emulsions
FR949227A (en) advanced photographic emulsions
FR878099A (en) Improvements to photographic films
FR949228A (en) photographic emulsions
FR844866A (en) Photographic developers
FR846470A (en) Colored photographic layers
FR945149A (en) photographic emulsions
FR841631A (en) photographic emulsions
FR864298A (en) Photographic shutter
FR826397A (en) Improvements to photographic emulsions
FR807002A (en) Photographic developers
FR867410A (en) photographic emulsions
FR808377A (en) Photographic developer
FR804471A (en) Photographic developers
FR819754A (en) Photographic developers
FR950647A (en) Improvements to photographic developers
FR867327A (en) Advanced anti-static photographic films
FR851912A (en) Improvements to photographic emulsions
FR864776A (en) Improvements to photographic films
FR945135A (en) Photographic film
FR838236A (en) Photographic lenses
FR803568A (en) Improvements to photographic developers
FR838237A (en) Advanced photographic lenses
FR781877A (en) Photographic developer
FR836868A (en) Photographic light meter