Patent US4524129A successfully refreshed from Google Patents.
US4524129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for processing color photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
•
Filing: 1984-09-17
•
Granted: 1985-06-18
•
Expires: 2004-09-17
Abstract
Abstract A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to color development processing then to bleaching processing and fixing processing or to bleach-fixing processing, which process comprises using a ferric ion complex salt or a persulfate as a bleaching agent in the bleaching processing or bleach-fixing processing and incorporating a compound represented by the general formula (I) described below or a salt thereof in a bath of the bleaching processing or bleach-fixing processing or in a pre-bath thereof. ##STR1## wherein R 1 and R 2 , which may be the same or different, each represents a hydrogen atom or a lower alkyl group; X represents a --NH 3 R 4 group, a --COOM group, a --SO 3 M group or a hydroxy group; R 3 and R 4 , which may be the same or different, each represents a hydrogen atom or a substituted or unsubstituted alkyl group or R 3 and R 4 are bonded to each other to form a ring; M represents a cation; and n represents an integer of 1 to 5. The method of the present invention does not produce poisonous materials which are harmful to the environment and provides an excellent high speed bleaching process without harming other photographic properties.
Inventors
- 👤 Shinzo Kishimoto
- 👤 Shigeru Ohno
- 👤 Teruaki Tsujikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:36
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/42; G03C7/421
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
186 words
A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to color development processing then to bleaching processing and fixing processing or to bleach-fixing processing, which process comprises using a ferric ion complex salt or a persulfate as a bleaching agent in the bleaching processing or bleach-fixing processing and incorporating a compound represented by the general formula (I) described below or a salt thereof in a bath of the bleaching processing or bleach-fixing processing or in a pre-bath thereof. ##STR11## wherein R 1 and R 2 , which may be the same or different, each represents a hydrogen atom or a lower alkyl group; X represents a NR 3 R 4 group, a --COOM group, a --SO 3 M group or a hydroxy group; R 3 and R 4 , which may be the same or different, each represents a hydrogen atom or a substituted or unsubstituted alkyl group or R 3 and R 4 are bonded to each other to form a ring; M represents a cation; and n represents an integer of 1 to 5.
Claim 2
Independent Claim
186 words
A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to color development processing then to bleaching processing and fixing processing or to bleach-fixing processing, which process comprises using a ferric ion complex salt or a persulfate as a bleaching agent in the bleaching processing or bleach-fixing processing and incorporating a compound represented by the general formula (I) described below or a salt thereof in a bath of the bleaching processing or bleach-fixing processing or in a pre-bath thereof. ##STR11## wherein R 1 and R 2 , which may be the same or different, each represents a hydrogen atom or a lower alkyl group; X represents a NR 3 R 4 group, a --COOM group, a --SO 3 M group or a hydroxy group; R 3 and R 4 , which may be the same or different, each represents a hydrogen atom or a substituted or unsubstituted alkyl group or R 3 and R 4 are bonded to each other to form a ring; M represents a cation; and n represents an integer of 1 to 5.
Claim 3
Dependent Claim
37 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the lower alkyl group represented by R 1 or R 2 is an alkyl group having from 1 to 5 carbon atoms.
Claim 4
Dependent Claim
36 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the alkyl group represented by R 3 or R 4 is an alkyl group having from 1 to 5 carbon atoms.
Claim 5
Dependent Claim
23 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein X represents a --NR 3 R 4 group.
Claim 6
Dependent Claim
53 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein a substituent for the substituted alkyl group represented by R 3 or R 4 is an amino group, a --COOM group, a --SO 3 M group, a hydroxy group or an alkylsulfonyl group, wherein M represents a cation.
Claim 7
Dependent Claim
50 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the amount of the compound represented by the general formula (I) in a bleaching bath, a bleach-fixing bath or a pre-bath thereof is from 1×10 -5 to 1 mol per liter of a processing solution.
Claim 8
Dependent Claim
36 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the compound represented by the general formula (I) is incorporated into a pre-bath of a bleaching bath or a bleach-fixing bath.
Claim 9
Dependent Claim
38 words
A method for processing a color photographic light-sensitive material as claimed in claim 6, wherein the pre-bath is an aqueous solution containing the compound represented by the general formula (I) and having a pH of 9 or less.
Claim 10
Dependent Claim
32 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein a bleaching agent used in a bleaching bath or bleach-fixing bath is a ferric ion complex salt.
Claim 11
Dependent Claim
30 words
A method for processing a color photographic light-sensitive material as claimed in claim 9, wherein the ferric ion complex salt is a complex of ferric ion and a chelating agent.
Claim 12
Dependent Claim
29 words
A method for processing a color photographic light-sensitive material as claimed in claim 10, wherein the chelating agent is an aminopolycarboxylic acid, an aminopolyphosphonic acid or a salt thereof.
Claim 13
Dependent Claim
29 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein a bleaching agent used in a bleaching bath or bleach-fixing bath is a persulfate.
Claim 14
Dependent Claim
22 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the bleaching solution contains a re-halogenating agent.
Claim 15
Dependent Claim
29 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the compound represented by the general formula (I) is incorporated into a bleaching solution.
Claim 16
Dependent Claim
29 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the compound represented by the general formula (I) is incorporated into a bleach-fixing solution.
Claim 17
Dependent Claim
28 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the bleach-fixing solution contains a ferric ion complex salt and a fixing agent.
Claim 18
Dependent Claim
48 words
A method for processing a color photographic light-sensitive material as claimed in claim 1, wherein the amount of the ferric ion complex salt is from 0.1 to 2 mols and the amount of the fixing agent is from 0.2 to 4 mols, per liter of the bleach-fixing solution.
Claim 19
Dependent Claim
132 words
A bleaching solution or a bleach-fixing solution comprises a ferric ion complex salt or a persulfate as a bleaching agent and a compound represented by the general formula (I) below or a salt thereof. ##STR12## wherein R 1 and R 2 , which may be the same or different, each represents a hydrogen atom or a lower alkyl group; X represents a --NR 3 R 4 group, a --COOM group, a --SO 3 M group or a hydroxy group; R 3 and R 4 , which may be the same or different, each represents a hydrogen atom or a substituted or unsubstituted alkyl group or R 3 and R 4 are bonded to each other to form a ring; M represents a cation; and n represents an integer of 1 to 5.
Claim 20
Dependent Claim
132 words
A bleaching solution or a bleach-fixing solution comprises a ferric ion complex salt or a persulfate as a bleaching agent and a compound represented by the general formula (I) below or a salt thereof. ##STR12## wherein R 1 and R 2 , which may be the same or different, each represents a hydrogen atom or a lower alkyl group; X represents a --NR 3 R 4 group, a --COOM group, a --SO 3 M group or a hydroxy group; R 3 and R 4 , which may be the same or different, each represents a hydrogen atom or a substituted or unsubstituted alkyl group or R 3 and R 4 are bonded to each other to form a ring; M represents a cation; and n represents an integer of 1 to 5.
Claim 21
Dependent Claim
103 words
A bleaching solution or a bleach-fixing solution as claimed in claim 18, wherein the lower alkyl group represented by R 1 or R 2 is an alkyl group having from 1 to 5 carbon atoms; the alkyl group represented by R 3 or R 4 is an alkyl group having from 1 to 5 carbon atoms; X represents a --NR 3 R 4 group; and a substituent for the substituted alkyl group represented by R 3 or R 4 is an amino group, a --COOM group, a --SO 3 M group, a hydroxy group or an alkylsulfonyl group, wherein M represents a cation.
Claim 22
Dependent Claim
45 words
A bleaching solution or a bleach-fixing solution as claimed in claim 18, wherein the amount of the compound represented by the general formula (I) is a bleaching solution or a bleach-fixing solution is from 1×10 -5 to 1 mol per liter of a processing solution.
References Cited (Backward Citations)
US2432506A
Cited
GB1138842A
Cited
US4163669A
Cited
US4322493A
Cited
US4301236A
Cited
US4292401A
Cited
US4293639A
Cited
US4458010A
Cited
US4481290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |