US4596764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of processing image-wise exposed silver halide color photographic material
Assignee: Fujifilm Holdings Corp
•
Filing: 1985-07-03
•
Granted: 1986-06-24
•
Expires: 2005-07-03
Abstract
Abstract A method of processing an image-wise exposed silver halide color photographic material is described, having on a support at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer, the total amount of silver iodide contained in the light-senstive silver halides in said light-sensitive silver halide emulsion layers being higher than 4.0×10 -3 mole/m 2 , which comprises processing the color photographic material further containing in a protective layer thereof a super fine grain silver halide, having a mean grain size of less than 0.2 μm and having a silver iodide content of less than 3 mole %, in an amount of from 50 to 140 mole % of the total amount of silver iodide contained in the light-sensitive silver halides, by a color development process including a step subjecting the material to a compound represented by formula (I) ##STR1## wherein M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a quaternary ammonium group, a quaternary phosphonium group, an amidino group, or a group represented by ##STR2## wherein R 1 and R 2 each represents a hydrogen atom or an aliphatic residue; and m represents an integer of 2 to 4; or a strong acid salt thereof.
Inventors
- 👤 Shingo Ishimaru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:50
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/42; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
212 words
A method of processing an image-wise exposed silver halide color photographic material having on a support at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer, the total amount of silver iodide contained in the light-sensitive silver halides in said light-sensitive silver halide emulsion layers being higher than 4.0×10 -3 mole/m 2 , which comprises processing the color photographic material further containing in a protective layer thereof a super fine grain silver halide, having a mean grain size of less than 0.2 μm and having a silver iodide content of less than 3 mole%, in an amount of from 50 to 140 mole% of the total amount of silver iodide contained in the light-sensitive silver halides, by a color development process including a step subjecting the material to a compound represented by formula (I) ##STR11## wherein M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a quaternary ammonium group, a quaternary phosphonium group, an amidino group, or a group represented by ##STR12## wherein R 1 and R 2 each represents a hydrogen atom or an aliphatic residue; and m represents an integer of 2 to 4; or a strong acid salt thereof.
Claim 2
Independent Claim
212 words
A method of processing an image-wise exposed silver halide color photographic material having on a support at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer, the total amount of silver iodide contained in the light-sensitive silver halides in said light-sensitive silver halide emulsion layers being higher than 4.0×10 -3 mole/m 2 , which comprises processing the color photographic material further containing in a protective layer thereof a super fine grain silver halide, having a mean grain size of less than 0.2 μm and having a silver iodide content of less than 3 mole%, in an amount of from 50 to 140 mole% of the total amount of silver iodide contained in the light-sensitive silver halides, by a color development process including a step subjecting the material to a compound represented by formula (I) ##STR11## wherein M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a quaternary ammonium group, a quaternary phosphonium group, an amidino group, or a group represented by ##STR12## wherein R 1 and R 2 each represents a hydrogen atom or an aliphatic residue; and m represents an integer of 2 to 4; or a strong acid salt thereof.
Claim 3
Dependent Claim
36 words
The method of claim 1, wherein said color development process includes a bleach step using a bleaching solution or a blix step using a blixing solution wherein the material is subjected to a weak bleaching agent.
Claim 4
Dependent Claim
19 words
The method of claim 2, wherein the weak bleaching agent is a ferric ion complex salt or a persulfate.
Claim 5
Dependent Claim
13 words
The method of claim 2, wherein the weak bleaching agent is a persulfate.
Claim 6
Dependent Claim
21 words
The method of claim 2, wherein the compound of formula (I) is present in the bleaching solution or the blix solution.
Claim 7
Dependent Claim
24 words
The method of claim 2, wherein the compound of formula (I) is present in a pre-bath for the bleaching step or the blix step.
Claim 8
Dependent Claim
15 words
The method of claim 1, wherein the silver iodide content is less than 2 mole%.
Claim 9
Dependent Claim
15 words
The method of claim 2, wherein the silver iodide content is less than 2 mole%.
Claim 10
Dependent Claim
15 words
The method of claim 5, wherein the silver iodide content is less than 2 mole%.
Claim 11
Dependent Claim
37 words
The method of claim 1, wherein the protective layer contains super fine grain silver halide in an amount of from 75 to 140 mole% of the total amount of silver iodide contained in the light-sensitive silver halide.
Claim 12
Dependent Claim
37 words
The method of claim 2, wherein the protective layer contains super fine grain silver halide in an amount of from 75 to 140 mole% of the total amount of silver iodide contained in the light-sensitive silver halide.
Claim 13
Dependent Claim
37 words
The method of claim 5, wherein the protective layer contains super fine grain silver halide in an amount of from 75 to 140 mole% of the total amount of silver iodide contained in the light-sensitive silver halide.
Claim 14
Dependent Claim
37 words
The method of claim 7, wherein the protective layer contains super fine grain silver halide in an amount of from 75 to 140 mole% of the total amount of silver iodide contained in the light-sensitive silver halide.
Claim 15
Dependent Claim
34 words
The method of claim 1, wherein the compound represented by formula (I) is present in a processing solution in an amount of from 1×10 -5 to 1 mole per liter of the processing solution.
Claim 16
Dependent Claim
34 words
The method of claim 2, wherein the compound represented by formula (I) is present in a processing solution in an amount of from 1×10 -5 to 1 mole per liter of the processing solution.
Claim 17
Dependent Claim
38 words
The method of claim 5, wherein the compound represented by formula (I) is present in the bleaching or blix solution in an amount of from 1×10 -5 to 1 mole per liter of the bleaching or blix solution.
Claim 18
Dependent Claim
34 words
The method of claim 7, wherein the compound represented by formula (I) is present in a processing solution in an amount of from 1×10 -5 to 1 mole per liter of the processing solutions.
Claim 19
Dependent Claim
34 words
The method of claim 10, wherein the compound represented by formula (I) is present in a processing solution in an amount of from 1×10 -5 to 1 mole per liter of the processing solution.
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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |