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US5364746A
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Developer for silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1994-03-23
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Granted: 1994-11-15
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Expires: 2014-03-23
Abstract
Abstract A developer for developing a silver halide photographic material is disclosed. The developer comprises a compound represented by Formula 1 or Formula 2; ##STR1## wherein R 1 , R 2 , R 3 , and R 4 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms provided that both of R 1 and R 2 are not hydrogen atoms at the same time; R 5 is a hydroxy group, an amino group or an alkyl group having 1 to 3 carbon atoms; R 6 and R 7 are each a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an acyl group having 1 to 18 carbon atoms or a --COOM 2 group, provided that both of R 1 and R 2 are not hydrogen atoms at the same time, in the above M 1 is a hydrogen atom, an alkali metal atom or an ammonium group; m is an integer 0, 1 or 2; and M 2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkali metal atom, an aryl group or an aralkyl group having not more than 15 carbon atoms. Formation of silver sludge in the developer is prevented.
Inventors
- 👤 Kenichi Inoue
- 👤 Tsuyoshi Mitsuhashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:47
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
232 words
The developer for developing a silver halide photographic light-sensitive material comprising a 1,4-dihydroxybenzene, a sulfite, and 1×10 -5 to 3×10 -2 mol per liter of a compound of Formula 1 or Formula 2, based on said developer, said developer having a pH of 9.0 to 12; ##STR22## wherein R 1 and R.sub. 2 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms provided that both of R 1 and R2 are not hydrogen atoms at the same time; R 3 and R 4 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R 5 is a hydroxy group, an amino group or an alkyl group having 1 to 3 carbon atoms; R 6 and R 7 are each a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an acyl group having 1 to 18 carbon atoms or a --COOM 2 group, provided that both of R 6 and R7 are not hydrogen atoms at the same time, in the above M 1 is a hydrogen atom, an alkali metal atom or an ammonium group; m is an integer of 0, 1 or 2; and M 2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkali metal atom, an aryl group or an aralkyl group having not more than 15 carbon atoms.
Claim 2
Dependent Claim
232 words
The developer for developing a silver halide photographic light-sensitive material comprising a 1,4-dihydroxybenzene, a sulfite, and 1×10 -5 to 3×10 -2 mol per liter of a compound of Formula 1 or Formula 2, based on said developer, said developer having a pH of 9.0 to 12; ##STR22## wherein R 1 and R.sub. 2 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms provided that both of R 1 and R2 are not hydrogen atoms at the same time; R 3 and R 4 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R 5 is a hydroxy group, an amino group or an alkyl group having 1 to 3 carbon atoms; R 6 and R 7 are each a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an acyl group having 1 to 18 carbon atoms or a --COOM 2 group, provided that both of R 6 and R7 are not hydrogen atoms at the same time, in the above M 1 is a hydrogen atom, an alkali metal atom or an ammonium group; m is an integer of 0, 1 or 2; and M 2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkali metal atom, an aryl group or an aralkyl group having not more than 15 carbon atoms.
Claim 3
Dependent Claim
23 words
The developer of claim 1 wherein said developer contains said compound in an amount of 1×10 -4 to 3×10 -2 mol per liter.
Claim 4
Dependent Claim
22 words
The developer of claim 1 wherein said developer contains said 1,4-dihydroxybenzene in an amount of 0.01 mol to 0.7 mol per liter.
Claim 5
Dependent Claim
22 words
The developer of claim 3 wherein said developer contains said 1,4-dihydroxybenzene in an amount of 0.1 mol to 0.5 mol per liter.
Claim 6
Dependent Claim
14 words
The developer of claim 1 wherein said developer contains a p-aminophenol or a pyrazolidone.
Claim 7
Dependent Claim
25 words
The developer of claim 5 wherein said developer contains said p-aminophenol or said pyrazolidone in an amount of 0.0005 mol to 0.2 mol per liter.
Claim 8
Dependent Claim
25 words
The developer of claim 6 wherein said developer contains said p-aminophenol or said pyrazolidone in an amount of 0.001 mol to 0.1 mol per liter.
Claim 9
Dependent Claim
24 words
The developer of claim 1 wherein said sulfite is selected from the group consisting of sodium sulfite, potassium sulfite, lithium sulfite, and ammonium sulfite.
Claim 10
Dependent Claim
24 words
The developer of claim 1 wherein said developer contains said sulfite in an amount of 0.1 to 2.0 mol per liter of said developer.
Claim 11
Dependent Claim
19 words
The developer of claim 1 further containing a chelating agent having an iron ion chelating stability of over 8.
Claim 12
Dependent Claim
16 words
The developer of claim 1 further containing a development inhibitor, a mercapto compound, or an antifoggant.
Claim 13
Dependent Claim
50 words
The developer of claim 1 wherein R 6 or R 7 is an acetyl group or a benzoyl group; the aralkyl group represented by M 2 is a benzyl group or a phenethyl group; and the aryl group represented by M 2 is a phenyl group or a naphthyl group.
Claim 14
Dependent Claim
257 words
A developer for developing a silver halide photographic light-sensitive material comprising a compound represented by Formula 1 or Formula 2 in an amount of from 1×10 -4 to 3×10 -2 mol per liter, a 1,4-dihydroxybenzene in an amount of from 0.1 mol to 0.5 mol per liter, and a p-aminophenol or a pyrazolidone in an amount of from 0.001 mol to 0.1 mol per liter, all based on said developer; ##STR23## wherein R 1 and R 2 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms provided that both of R 1 and R 2 are not hydrogen atoms at the same time; R 3 and R 4 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R 5 is a hydroxy group, an amino group or an alkyl group having 1 to 3 carbon atoms; R 6 and R 7 are each a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an acyl group having 1 to 18 carbon atoms or a --COOM 2 group, provided that both of R 6 and R 7 are not hydrogen atoms at the same time, in the above M 1 is a hydrogen atom, an alkali metal atom or an ammonium group; m is an integer 0, 1 or 2; and M 2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkali metal atom, an aryl group or an aralkyl group having not more than 15 carbon atoms.
Claim 15
Dependent Claim
257 words
A developer for developing a silver halide photographic light-sensitive material comprising a compound represented by Formula 1 or Formula 2 in an amount of from 1×10 -4 to 3×10 -2 mol per liter, a 1,4-dihydroxybenzene in an amount of from 0.1 mol to 0.5 mol per liter, and a p-aminophenol or a pyrazolidone in an amount of from 0.001 mol to 0.1 mol per liter, all based on said developer; ##STR23## wherein R 1 and R 2 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms provided that both of R 1 and R 2 are not hydrogen atoms at the same time; R 3 and R 4 are each a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R 5 is a hydroxy group, an amino group or an alkyl group having 1 to 3 carbon atoms; R 6 and R 7 are each a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an acyl group having 1 to 18 carbon atoms or a --COOM 2 group, provided that both of R 6 and R 7 are not hydrogen atoms at the same time, in the above M 1 is a hydrogen atom, an alkali metal atom or an ammonium group; m is an integer 0, 1 or 2; and M 2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkali metal atom, an aryl group or an aralkyl group having not more than 15 carbon atoms.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
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