GB1297653A - - Google Patents

Info

Publication number
GB1297653A
GB1297653A GB6268069A GB1297653DA GB1297653A GB 1297653 A GB1297653 A GB 1297653A GB 6268069 A GB6268069 A GB 6268069A GB 1297653D A GB1297653D A GB 1297653DA GB 1297653 A GB1297653 A GB 1297653A
Authority
GB
United Kingdom
Prior art keywords
alkyl
bleach
water
soluble
fix
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
GB6268069A
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 filed Critical
Publication of GB1297653A publication Critical patent/GB1297653A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D249/00Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/081,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • C07D249/101,2,4-Triazoles; Hydrogenated 1,2,4-triazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/38Fixing; Developing-fixing; Hardening-fixing
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/28Silver dye bleach processes; Materials therefor; Preparing or processing such materials
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/42Bleach-fixing or agents therefor ; Desilvering processes
    • G03C7/421Additives other than bleaching or fixing agents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1297653 Bleach-fixing photographic silver halide materials ILFORD Ltd 22 Dec 1970 [23 Dec 1969] 62680/69 Heading G2C A stable photographic silver halide bleach-fix bath comprises an aqueous solution of an oxidizing agent which is strong enough to bleach the silver but is not strong enough to oxidize the silver halide solvent to any deleterious extent under normal processing conditions, a silver halide solvent which is either a water-soluble thiosulphate or a water-soluble thiocyanate and a water-soluble bleach-fix accelerator (a), (b), (c) or (d) as defined below. A photographic silver halide stop-fix bath comprises an aqueous acid solution of a silver halide solvent which is a water-soluble thiosulphate or a water-soluble thiocyanate and a watersoluble bleach-fix accelerator which has the formula (a):- R 1 R 2 N-N(R 3 )-C(Se)-NR 4 R 5 wherein one of R 1 and R 2 is H, alkyl, aralkyl, aryl or R 6 CO- wherein R 6 is H, alkyl, alkoxy or a heterocyclic group, or a group NR 7 R 8 -C(Se)- wherein R 7 and R 8 are each H or alkyl and the other of R 1 and R 2 is H or alkyl; R 3 is H, alkyl, aralkyl or aryl; one of R 4 and R 5 is H, alkyl, aralkyl or aryl and the other of R 4 and R 5 is H or alkyl, at least one of R 3 , R 4 or R 5 being H and there being not more than one aryl, aralkyl or hetercyclic group present in the compound or (b):- R 9 R 10 N-C(Se)-N(R 11 )-N(R 12 )-CO-X-CO-N(R 13 )- N(R 14 )-C(Se)-NR 15 R 16 wherein each of R 9 -R 16 is H or alkyl there being not more than 4 alkyl substituent groups in the compound and at least one of R 9 , R 10 , R 11 , R 14 , R 15 and R 16 being H and X is -(CH 2 ) m wherein m is 0-4 or (c) a 1,2,4-triazole- 3-selenol wherein the 5-carbon atom carries H, alkyl, OH, amino, alkylamino, arylamino or aralkylamino and one of the N atoms carries H, alkyl, aralkyl or aryl or (d) a 5,5-bis-1,2,4- triazole-3-selenol wherein the triazole rings are linked directly or via a link - (CH 2 ) n wherein n is 1-4 and wherein one N atom in each of the triazole rings carries H, alkyl, aryl or aralkyl. When the water-soluble bleach-fix accelerator has the formula:- R 41 NHNHC (Se)-NH 2 wherein R 41 is H, alkyl, aralkyl or aryl or R 42 CO- wherein R 42 is H, alkyl or a heterocyclic group or is a 1, 2,4-triazole-3-selenol wherein the 5-carbon atom carries H or alkyl it may be applied as an aqeous solution to an exposed and developed photographic silver halide material containing colour couplers which material may be simultaneously or subsequently treated with a stable bleach-fix bath (as defined above) comprising an aqueous solution of an oxidizing agent and a silver halide solvent which is a water-soluble thiosulphate or a water-soluble thiocyanate. The oxidizing agent may be a ferric chelate complex i.e. a coordination compound of the ferric ion and a compound comprising N and/or O-containing coordinating groups e.g. amino, heterocyclic N, carboxyl or carbonyl, such as ferric ethylenediaminetetraacetric acid complex. Many examples of the bleach-fix accelerators are given and they may be present in any treatment or wash bath between development and bleach fixing, e.g. the stop bath or stop-fix bath. They should not be present in the developer since they interfere with development, and for the same reason they should not be present initially in the photographic material before development. The water-soluble bleach-fix accelerators may be present in a wash bath which succeeds dye-bleaching and preceeds bleach-fixing in the silver dye-bleach process.
GB6268069A 1969-12-23 1969-12-23 Expired GB1297653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6268069 1969-12-23

Publications (1)

Publication Number Publication Date
GB1297653A true GB1297653A (en) 1972-11-29

Family

ID=10488378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6268069A Expired GB1297653A (en) 1969-12-23 1969-12-23

Country Status (10)

Country Link
US (1) US3702248A (en)
JP (1) JPS4834767B1 (en)
CA (1) CA968611A (en)
CH (1) CH557045A (en)
DE (1) DE2063576C3 (en)
FR (1) FR2074216A5 (en)
GB (1) GB1297653A (en)
NL (1) NL166554C (en)
SU (1) SU383337A3 (en)
ZA (1) ZA708653B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312696A (en) * 1970-10-01 1973-04-04 Ilford Ltd Production of d-selenides
GB1351464A (en) * 1971-04-14 1974-05-01 Minnesota Mining & Mfg Bleaching of silver developed from silver halide emulsions
JPS5128227B2 (en) * 1972-10-05 1976-08-18
JPS5440289U (en) * 1977-08-24 1979-03-16

Also Published As

Publication number Publication date
SU383337A3 (en) 1973-05-25
DE2063576C3 (en) 1980-08-07
NL166554C (en) 1981-08-17
NL166554B (en) 1981-03-16
JPS4834767B1 (en) 1973-10-23
US3702248A (en) 1972-11-07
ZA708653B (en) 1971-10-27
FR2074216A5 (en) 1971-10-01
CH557045A (en) 1974-12-13
DE2063576B2 (en) 1979-10-11
DE2063576A1 (en) 1971-07-01
CA968611A (en) 1975-06-03
NL7018729A (en) 1971-06-25

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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