Patent US4839273A successfully refreshed from Google Patents.
US4839273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the development of silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1987-10-02
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Granted: 1989-06-13
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Expires: 2007-10-02
Abstract
Abstract In a process for development, fixing, and washing or stabilization of a silver halide photographic light-sensitive material by means of an automatic developing machine, is provided, which process comprises supplying to a developing bath and/or a fixing bath a concentrated developing solution and/or a concentrated solution having a fixing capacity, respectively, and water which has been treated by at least one antifungal means selected from the group consisting of irradiation with ultraviolet rays, irradiation with magnetic fields, processing with ion exchange resins, and incorporation of at least one compound selected from the group consisting of aminopolycarboxylic acids and phosphonic acids. In a preferred embodiment, the amount of wash water or stabilizing sollution to be refilled is 3 l or less (including 0 l) per 1 m 2 of light-sensitive material, and the water processed by antifungal means contained in the stock tank is also used as the wash water or stabilizing solution.
Inventors
- 👤 Minoru Yamada
- 👤 Takashi Toyoda
- 👤 Kunio Seto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:40
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
174 words
A process for development, fixing, and washing or stabilization of a silver halide photographic light-sensitive material by means of an automatic developing machine, which process comprises: (1) developing and/or fixing said photographic light sensitive material in a developing bath and/or a fixing bath supplied with: (a) a concentrated developing solution and/or a concentrated solution having a fixing capacity, respectively, and (b) water which has been treated by at least one antifungal means selected from the group consisting of irradiation with ultraviolet rays, irradiation with magnetic fields, processing with ion exchange resins, and incorporation of at least one compound selected from the group consisting of aminopolycarboxylic acids and phosphonic acids, and (2) washing or stabilizing said silver halide photographic light-sensitive material with said water treated with antifungal means or with a combination of said water treated with antifungal means and/or wash water or a stabilizing solution, wherein the amount of washing water or stabilizing solution used is 3 1 or less (including 0 1) per 1 m 2 of said silver halide photographic light-sensitive material.
Claim 2
Dependent Claim
174 words
A process for development, fixing, and washing or stabilization of a silver halide photographic light-sensitive material by means of an automatic developing machine, which process comprises: (1) developing and/or fixing said photographic light sensitive material in a developing bath and/or a fixing bath supplied with: (a) a concentrated developing solution and/or a concentrated solution having a fixing capacity, respectively, and (b) water which has been treated by at least one antifungal means selected from the group consisting of irradiation with ultraviolet rays, irradiation with magnetic fields, processing with ion exchange resins, and incorporation of at least one compound selected from the group consisting of aminopolycarboxylic acids and phosphonic acids, and (2) washing or stabilizing said silver halide photographic light-sensitive material with said water treated with antifungal means or with a combination of said water treated with antifungal means and/or wash water or a stabilizing solution, wherein the amount of washing water or stabilizing solution used is 3 1 or less (including 0 1) per 1 m 2 of said silver halide photographic light-sensitive material.
Claim 3
Dependent Claim
30 words
A process as claimed in claim 1, wherein said antifungal means is the incorporation of at least one compound selected from the group consisting of aminopolycarboxylic acids and phosphonic acids.
Claim 4
Dependent Claim
17 words
A process as claimed in claim 1, wherein said antifungal means is the irradiation with ultraviolet rays.
Claim 5
Dependent Claim
17 words
A process as claimed in claim 1, wherein said antifungal means is the irradiation with magnetic fields.
Claim 6
Dependent Claim
18 words
A process as claimed in claim 1, wherein said antifungal means is the processing with ion exchange resins.
Claim 7
Dependent Claim
29 words
A process as claimed in claim 2, wherein said aminopolycarboxylic acid or phosphoric acid is used in an amount of 0.02 to 20 g per liter of diluting water.
Claim 8
Dependent Claim
56 words
A process as claimed in claim 3, wherein said aminopolycarobxylic acid is selected from the group consisting of ethylenediamine tetraacetic acid (EDTA) diethylenetriamine pentaacetic acid, ethylenediamine-N-hydroxyethyl-N,N',N'-triacetic acid, propylenediamine tetraacetic acid, and triethylenetetramine hexaacetic acid and said phosphonic acid is selected from the group consisting of ethylenediaminetetramethylenephosphonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, and sodium, potassium, and ammonium salts thereof.
Claim 9
Dependent Claim
18 words
A process as claimed in claim 1, wherein said concentrated developing solution consists of a single agent solution.
Claim 10
Dependent Claim
15 words
A process as claimed in claim 1, wherein said concentrated developing solution contains a 3-pyrazolidone.
Claim 11
Dependent Claim
14 words
A process as claimed in claim 9, wherein said 3-pyrazolidone is a 4-substituted 3-pyrazolidone.
Claim 12
Dependent Claim
21 words
A process as claimed in claim 1, wherein said concentrated solution having a fixing capacity consists of a single agent solution.
Claim 13
Dependent Claim
17 words
A process as claimed in claim 11, wherein the fixing solution does not contain an aluminium hardener.
Claim 14
Dependent Claim
32 words
A process as claimed in claim 1, wherein the amount of washing water or stabilizing solution used is 0 to 2 l per m 2 of said silver halide photographic light-sensitive material.
Claim 15
Dependent Claim
18 words
A process as claimed in claim 1, wherein said concentrated developing solution does not contain a film hardener.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-12 | 1992-12-12 | 1993-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-12 | 1996-12-12 | 1997-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-12 | 2000-12-12 | 2001-06-13 | $7700.00 | Window Closed / Lapsed |