# US 5,707,790 A · Developing composition for silver halide photographic light-sensitive material

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- Number: US 5,707,790 A
- Document ID: US5707790A
- Status: Granted
- Kind: A
- Application number: 08/811,824
- Filed: 1997-03-05
- Granted: 1998-01-13
- Earliest claimed: 1996-03-11
- Assignees: Konica Corporation
- Inventors: Hiroyuki Yanagisawa
- Web page: https://patentgrep.com/patent/US5707790A

## CPC

- G03C 5/3053: {Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents}
- G03C 5/265: {of powders, granulates, tablets (G03C5/267 takes precedence)}
- G03C 5/305: Additives other than developers {(G03C5/264 takes precedence)}
- G03C 5/31: Regeneration; Replenishers
- G03C: PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G)

## Abstract

A developing composition for a silver halide black-and-white photographic light sensitive material is disclosed, comprising a compound represented by formula (1) and a compound represented by formula (2) or (3): ##STR1##

## Claims

### Claim 1

A developing composition for a silver halide black-and-white photographic light sensitive material comprising a compound represented by formula (1) and a compound represented by formula (2) or (3): ##STR7## wherein R.sub.1 and R.sub.2 are each independently a hydroxy group, mercapto group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonylamino group, or an alkylthio group; Z is an atomic group necessary for forming a 5 or 6-membered ring; ##STR8## wherein, B is a hydrogen atom or OH; when B is a hydrogen atom, A.sub.1 through A.sub.9 is each independently a hydrogen atom, OH, C.sub.n H.sub.2n+1 or (CH.sub.2).sub.m X, in which n is an integer of 1 to 3, m is an integer of 0 to 3 and X is COOM.sub.1, NH.sub.2 or OH, n.sub.1 and n.sub.2 are each 1 and n.sub.3 plus n.sub.4 is an integer of 1 to 4, provided that all of A.sub.1 to A.sub.5 are not hydrogen atoms; when B is OH, n.sub.1 and n.sub.2 are an integer, provided that n.sub.1 plus n.sub.2 is 2, n.sub.3 is 0 and n.sub.4 is 1, A.sub.1, A.sub.8 and A.sub.9 are each a hydrogen atom, A.sub.2 through A.sub.5 are each independently a hydrogen atom, OH, COOM.sub.1, PO.sub.3 (M.sub.1).sub.2, CH.sub.2 COOM.sub.1, CH.sub.2 OH or an lower alkyl group, provided that at least one of A.sub.2 through A.sub.5 is COOM.sub.1, PO.sub.3 (M.sub.1).sub.2 or CH.sub.2 COOM.sub.1 ; M and M.sub.1 are each a hydrogen atom, an alkali metal atom or an ammonium group. ##STR9## wherein A.sub.10 through A.sub.13 are each COOM.sub.2 or OH; n.sub.5 through n.sub.8 are each an integer of 0 to 3; R.sub.3 through R.sub.6 are each independently a hydrogen atom, OH or a lower alkyl group; X is an alkylene group having 2 to 6 carbon atoms or .dbd.(B.sub.1 O).sub.m1 --B.sub.2 --, in which B.sub.1 and B.sub.2 are each an alkylene group having 1 to 5 carbon atoms and m.sub.1 is an integer of 1 to 5; M.sub.2 is a hydrogen atom, an alkali metal atom or an ammonium group.

### Claim 2 (depends on 1)

The developing composition of claim 1, wherein said composition is liquid or solid.

### Claim 3 (depends on 2)

The developing composition of claim 2, wherein said solid developing composition is in the form of a tablet.

### Claim 4 (depends on 1)

The developing composition of claim 1, wherein at least 70% of said compound represented by formula (2) or (3) is accounted for by its ›S,S! optical isomer.

### Claim 5

A developing solution for a silver halide black-and-white photographic light sensitive material comprising a compound represented by formula (1) and a compound represented by formula (2) or (3): ##STR10## wherein R.sub.1 and R.sub.2 are each independently a hydroxy group, mercapto group, an amino group, an acylamino group, an alkylsulfonylamino group, an arysulfonylamino group, an alkoxycarbonylamino group, or an alkylthio group; Z is an atomic group necessary for forming a 5 or 6-membered ring; ##STR11## wherein, B is a hydrogen atom or OH; when B is a hydrogen atom, A.sub.1 through A.sub.9 is each independently a hydrogen atom, OH, C.sub.n H.sub.2n-1 or (CH.sub.2).sub.m X, in which n is an integer of 1 to 3, m is an integer of 0 to 3 and X is COOM.sub.1, NH.sub.2 or OH, n.sub.1 and n.sub.2 are each 1 and n.sub.3 plus n.sub.4 is an integer of 1 to 4, provided that all of A.sub.1 to A.sub.5 are not hydrogen atoms; when B is OH, n.sub.1 and n.sub.2 are each an integer, provided that n.sub.1 plus n.sub.2 is 2, n.sub.3 is 0 and n.sub.4 is 1, A.sub.1, A.sub.8 and A.sub.9 are each a hydrogen atom, A.sub.2 through A.sub.5 are each independently a hydrogen atom, OH, COOM.sub.1, PO.sub.3 (M.sub.1).sub.2, CH.sub.2 COOM.sub.1, CH.sub.2 OH or an lower alkyl group, provided that at least one of A.sub.2 through A.sub.5 is COOM.sub.1, PO.sub.3 (M.sub.1).sub.2 or CH.sub.2 COOM.sub.1 ; M and M.sub.1 are each a hydrogen atom, an alkali metal atom or an ammonium group, ##STR12## wherein A.sub.10 through A.sub.13 are each COOM.sub.2 or OH; n.sub.5 through n.sub.8 are each an integer of 0 to 3; R.sub.3 through R.sub.6 are each independently a hydrogen atom, OH or a lower alkyl group; X is an alkylene group having 2 to 6 carbon atoms or .dbd.(B.sub.1 O).sub.m1 --B.sub.2 --, in which B.sub.1 and B.sub.2 are each an alkylene group having 1 to 5 carbon atoms and m.sub.1 is an integer of 1 to 5; M.sub.2 is a hydrogen atom, an alkali metal atom or an ammonium group.

### Claim 6 (depends on 5)

The developing solution of claim 5, wherein said developing solution has a pH of 9.5 to 10.5.