GB1213809A - Photographic processing materials - Google Patents

Photographic processing materials

Info

Publication number
GB1213809A
GB1213809A GB58063/67A GB5806367A GB1213809A GB 1213809 A GB1213809 A GB 1213809A GB 58063/67 A GB58063/67 A GB 58063/67A GB 5806367 A GB5806367 A GB 5806367A GB 1213809 A GB1213809 A GB 1213809A
Authority
GB
United Kingdom
Prior art keywords
photographic processing
compositions
dec
black
contain
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
GB58063/67A
Inventor
Charleton Cordery Bard
Howard Walter Vogt
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1213809A publication Critical patent/GB1213809A/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
    • G03C5/50—Reversal development; Contact processes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1,213,809. Photographic processing. EASTMAN KODAK CO. Dec. 21, 1967 [Dec.28, 1966], No. 58063/67. Heading G2C. Aqueous photographic processing compositions, and dry compositions for the preparation thereof, contain (i) an ionic boron compound having an anion containing at least 2 boron atoms, and (ii) a water-soluble "photographically acceptable substance" (as defined). The composition preferably contains (i) (CH 3 ) 4 N<SP>+</SP>B 3 H 8 <SP>-</SP> which renders unexposed silver halide developable (e.g. in reversal processes), (ii) phosphoric, phosphorous, acetic or maleic acid or an alkali-metal carbonate, and (iii) a colour or black-and-white developer. The aqueous compositions may also contain other processing agents and/or be used as black-andwhite developers using the boron compound as sole developing agent.
GB58063/67A 1966-12-28 1967-12-21 Photographic processing materials Expired GB1213809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60522066A 1966-12-28 1966-12-28

Publications (1)

Publication Number Publication Date
GB1213809A true GB1213809A (en) 1970-11-25

Family

ID=24422723

Family Applications (2)

Application Number Title Priority Date Filing Date
GB58063/67A Expired GB1213809A (en) 1966-12-28 1967-12-21 Photographic processing materials
GB58064/67A Expired GB1213810A (en) 1966-12-28 1967-12-21 Photographic processes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB58064/67A Expired GB1213810A (en) 1966-12-28 1967-12-21 Photographic processes

Country Status (6)

Country Link
US (1) US3554748A (en)
BE (1) BE708563A (en)
CH (2) CH479091A (en)
DE (1) DE1597570A1 (en)
FR (1) FR1548122A (en)
GB (2) GB1213809A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055422A (en) * 1975-07-28 1977-10-25 Minnesota Mining And Manufacturing Company Additive for inhibitor removing bath

Also Published As

Publication number Publication date
US3554748A (en) 1971-01-12
GB1213810A (en) 1970-11-25
DE1597570A1 (en) 1970-09-24
DE1597569A1 (en) 1970-08-13
BE708563A (en) 1968-05-02
FR1548122A (en) 1968-11-29
CH479091A (en) 1969-09-30
CH484455A (en) 1970-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee