Patent US4797353A successfully refreshed from Google Patents.
US4797353A
Expired / Lapsed
US
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Method for developing of silver halide photographic materials utilizing reduced amounts of organic substances
Assignee: Fujifilm Corp
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Filing: 1987-09-10
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Granted: 1989-01-10
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Expires: 2007-09-10
Abstract
Abstract A method for processing a silver halide light-sensitive material is disclosed, comprising a support having thereon at least one silver halide emulsion layer with an automatic developing machine which comprises developing an imagewise exposed silver halide light-sensitive material, wherein an amount of organic substances remaining in at least one of the emulsion layer or other hydrophilic colloid layers comprising a surface protective layer after said processing with said automatic developing machine, is not more than about 90 wt % of the weight of said organic substances prior to said processing.
Inventors
- 👤 Sumito Yamada
- 👤 Hiroshi Kawasaki
- 👤 Masaki Satake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:59
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C1/00; G03C1/76; G03C1/7614; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107; Y10S430/11; Y10S430/112; Y10S430/151; Y10S430/162; Y10S430/167
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
119 words
A method for processing a silver halide light-sensitive material comprising a support having thereon at least one silver halide emulsion layer with an automatic developing machine which comprises developing an imagewise exposed silver halide light-sensitive material, wherein an amount of organic substances remaining in at least one of the emulsion layer or other hydrophilic colloid layers comprising a surface protective layer after said processing with said automatic developing machine, is not more than about 90 wt% of the weight of said organic substances prior to said processing, said organic substances being selected from the group consisting essentially of polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, Dextran and gelatin of the type which is free from cross-linking upon reaction with a hardener.
Claim 2
Independent Claim
119 words
A method for processing a silver halide light-sensitive material comprising a support having thereon at least one silver halide emulsion layer with an automatic developing machine which comprises developing an imagewise exposed silver halide light-sensitive material, wherein an amount of organic substances remaining in at least one of the emulsion layer or other hydrophilic colloid layers comprising a surface protective layer after said processing with said automatic developing machine, is not more than about 90 wt% of the weight of said organic substances prior to said processing, said organic substances being selected from the group consisting essentially of polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, Dextran and gelatin of the type which is free from cross-linking upon reaction with a hardener.
Claim 3
Dependent Claim
45 words
The method as claimed in claim 1, wherein said processing comprises the step of developing the imagewise exposed silver halide light-sensitive material with a developing solution, fixing said material with a fixing solution, rinsing said material and drying said material, in said automatic developing machine.
Claim 4
Dependent Claim
40 words
The method as claimed in claim 1, wherein the silver halide light-sensitive material is a light-sensitive material suitable as an X-ray film which comprises a support having at least one silver halide emulsion layer on both sides of the support.
Claim 5
Dependent Claim
38 words
The method as claimed in claim 1, wherein said organic substances which are selected from the group consisting essentially of pullulan, and saccharose is present in at least one of the emulsion layer or the surface protective layer.
Claim 6
Dependent Claim
23 words
The method as claimed in claim 1, wherein said organic substance is polyacrylamide having an average molecular weight of not more than 20,000.
Claim 7
Dependent Claim
22 words
The method as claimed in claim 5, wherein said organic substance is polyacrylamide having an average molecular weight of 5,000 to 15,000.
Claim 8
Dependent Claim
20 words
The method as claimed in claim 1, wherein said automatic developing machine is a roller conveyer type automatic developing machine.
Claim 9
Dependent Claim
30 words
The method as claimed in claim 1, wherein said organic substance is polyacrylamide having a molecular weight of not more than 20,000, and is present in the surface protective layer.
Claim 10
Dependent Claim
48 words
The method as claimed in claim 1, wherein said silver halide light-sensitive material comprises a support having at least two silver halide emulsion layers on both sides of the support, said emulsion layer farther from the support containing polyacrylamide as the organic substance capable of being washed away.
Claim 11
Dependent Claim
25 words
The method as claimed in claim 1, wherein said silver halide emulsion layer contains a tabular grain having an aspect ratio of 5 or more.
Claim 12
Dependent Claim
36 words
The method as claimed in claim 1, wherein 50% or more of the total projected area of grains in said silver halide emulsion layer has a tabular grain having an aspect ratio of 5 or more.
Claim 13
Dependent Claim
47 words
The method as claimed in claim 1, wherein an amount of said organic substances remaining in at least one of the emulsion layer or another hydrophilic colloid layer is from about 90 to about 50 wt% of the weight of said organic substances prior to said processing.
Claim 14
Dependent Claim
23 words
The method as claimed in claim 1, wherein said organic substance is dextran having an average molecular weight of not more than 20,000.
Claim 15
Dependent Claim
50 words
The method as claimed in claim 1, wherein an amount of said organic substance which are selected from the group consisting essentially of polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, dextran, pullulan and saccharose in the surface protective layer is 30 wt% or more based on a total binder of said layer.
Claim 16
Dependent Claim
19 words
The method as claimed in claim 1, wherein said organic substances is low molecular weight gelatin free from cross-linking.
Claim 17
Dependent Claim
22 words
The method as claimed in claim 1, wherein said organic substances have an average molecular weight of not more than about 50,000.
Claim 18
Dependent Claim
47 words
The method as claimed in claim 1, wherein an amount of said organic substance remaining in at least one of the emulsion layer or another hydrophilic colloid layer is from about 85 to about 70 wt% of the weight of said organic substances prior to said processing.
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) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |