GB1442470A

GB1442470A – Processing of silver halide photographic materials
– Google Patents

GB1442470A – Processing of silver halide photographic materials
– Google Patents
Processing of silver halide photographic materials

Info

Publication number
GB1442470A

GB1442470A
GB30025/74A
GB3002574A
GB1442470A
GB 1442470 A
GB1442470 A
GB 1442470A
GB 30025/74 A
GB30025/74 A
GB 30025/74A
GB 3002574 A
GB3002574 A
GB 3002574A
GB 1442470 A
GB1442470 A
GB 1442470A
Authority
GB
United Kingdom
Prior art keywords
group
cation
hydrogen atom
alkyl
silver halide
Prior art date
1973-07-07
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
GB30025/74A
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.)

Fujifilm Holdings Corp

Original Assignee
Fuji Photo Film Co Ltd
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.)
1973-07-07
Filing date
1974-07-05
Publication date
1976-07-14

1974-07-05
Application filed by Fuji Photo Film Co Ltd
filed
Critical
Fuji Photo Film Co Ltd

1976-07-14
Publication of GB1442470A
publication
Critical
patent/GB1442470A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

G03C5/44—Bleaching; Bleach-fixing

Abstract

1442470 Bleaching photographic materials FUJI PHOTO FILM CO Ltd 5 July 1974 [7 July 1973] 30025/74 Heading G2C A developed, imagewise exposed silver halide photographic material is bleached with a bleaching solution containing (a) as the bleaching agent a complex formed from a polyvalent ferric iron, cobalt, nickel or cupric copper cation and an organic phosphonic acid and (b) a re-halogenating agent and treating the bleached material with a fixing solution. Suitably an amino-poly(methylene phosphonic acid, e.g. of the Formula R1N (CH 2 PO 3 M 2 ) 2 where M represents a hydrogen atom or a cation that imparts water-solubility; and R1 represents an alkyl group, an optionally substituted aryl group, an optionally substituted aralkyl group, an alicyclic group or a heterocyclic group, is used. Alternatively, the phosphonic acid may be of the Formula R2R3C (PO 3 M 2 ) 2 where R2 represents a hydrogen atom or an alkyl, aralkyl, alicyclic or heterocyclic group and R3 represents a hydrogen atom, a hydroxyl group, an alkyl, an alkyl group or – PO 3 M where M is a hydrogen atom or a cation which imparts water-solubility or R2 is an alkyl group substituted with a hydroxyl group, an alkoxy group, a halogen atom, -PO 3 M 2 , -CH 2 PO 3 M 2 or -N (CH 2 PO 3 M 2 ) 2 wherein M is an alkali metal or other cation which imparts watersolubility. Alkali metal and ammonium halides are specified rehalogenating agents. The bleaching solution may also contain a pH buffer, a nitrate, sulphite, mercapto compound, stain-inhibiting agent, polyamine, alkylamine, polyethylene oxide, or nitrogen-containing heterocyclic compound. The photographic material suitably comprises a silver halide emulsion layer containing a colourforming coupler.

GB30025/74A
1973-07-07
1974-07-05
Processing of silver halide photographic materials

Expired

GB1442470A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

JP48076842A

JPS5026543A
(en)

1973-07-07
1973-07-07

Publications (1)

Publication Number
Publication Date

GB1442470A
true

GB1442470A
(en)

1976-07-14

Family
ID=13616907
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB30025/74A
Expired

GB1442470A
(en)

1973-07-07
1974-07-05
Processing of silver halide photographic materials

Country Status (4)

Country
Link

US
(1)

US3928040A
(en)

JP
(1)

JPS5026543A
(en)

DE
(1)

DE2432721A1
(en)

GB
(1)

GB1442470A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US5508151A
(en)

*

1994-12-22
1996-04-16
Eastman Kodak Company
Processing of photographic elements using copper ligand complexes to catalyze peracid bleaching agents

Families Citing this family (7)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2545756A1
(en)

*

1975-10-11
1977-04-21
Agfa Gevaert Ag

METHOD OF MANUFACTURING 2-AEQUIVAL YELLOW COUPLERS

US4277556A
(en)

1976-08-18
1981-07-07
Konishiroku Photo Industry Co., Ltd.
Process for treating light-sensitive silver halide color photographic materials

JPS5326124A
(en)

*

1976-08-24
1978-03-10
Fuji Photo Film Co Ltd
Photographic image formation

US4609616A
(en)

*

1984-03-15
1986-09-02
Agfa Gevaert Aktiengesellschaft
Bath composition for bleaching photographic recording materials and bleaching process

EP0461670B1
(en)

*

1990-06-15
1998-04-01
Fuji Photo Film Co., Ltd.
Composition and process for the processing of silver halide color photographic material

US6518002B1
(en)

*

1997-02-06
2003-02-11
Eastman Kodak Company
Photographic bleaching solution containing organic phosphorus acid anti-rust agent and method of use

US6261747B1
(en)

*

2000-05-23
2001-07-17
Eastman Kodak Company
Black-and-white sepia toning kit and method for its use

Family Cites Families (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

BE758333A
(en)

*

1969-11-03
1971-04-01
Eastman Kodak Co

NEW PHOTOGRAPHIC COMPOSITION OF

US3706561A
(en)

*

1970-03-23
1972-12-19
Eastman Kodak Co
Compositions for making blixes

1973

1973-07-07
JP
JP48076842A
patent/JPS5026543A/ja
active
Pending

1974

1974-07-05
GB
GB30025/74A
patent/GB1442470A/en
not_active
Expired

1974-07-08
US
US486737A
patent/US3928040A/en
not_active
Expired – Lifetime

1974-07-08
DE
DE2432721A
patent/DE2432721A1/en
active
Pending

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US5508151A
(en)

*

1994-12-22
1996-04-16
Eastman Kodak Company
Processing of photographic elements using copper ligand complexes to catalyze peracid bleaching agents

Also Published As

Publication number
Publication date

US3928040A
(en)

1975-12-23

JPS5026543A
(en)

1975-03-19

DE2432721A1
(en)

1975-01-23

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(en)

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(en)

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(en)

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(en)

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Legal Events

Date
Code
Title
Description

1976-11-24
PS
Patent sealed [section 19, patents act 1949]

1981-02-18
PCNP
Patent ceased through non-payment of renewal fee

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