Bleach-fixing of colour photographic materials

Claim 3

The method according to Claim 1, wherein the pH value ranges from 5 to 9.

Claim 4

The method according to Claim 2, wherein the pH value ranges from 6 to 8.5.

Claim 5

The method according to Claim 31 wherein said diethylenetriamine pentaacetic acid iron (III) complex salt is used at 0.01 mol or more per one liter of the bleach-fixing solution.

Claim 6

The method according to Claim 1, wherein said bleach-fixing solution has a silver ion concentration ranging from 5 to 50 g/liter when calculated in terms of metallic silver.

Claim 7

The method according to Claim 1, wherein the cyan coupler is at least one of cyan couplers represented by the formula [I] or the formula [II] shown below: wherein X is -CONHCOR 2 or -CONHSO 2 R 2 (R 2 represents an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a heterocyclic ring; R 3 represents a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a heterocyclic group; or R 2 and R 3 may be bonded to each other to form a 5- to 6- membered ring), R 1 is a ballast group, Z is a hydrogen atom or an eliminable group through coupling with the oxidized product of an aromatic primary amine color developing agent.

Claim 8

The method according to Claim 6, wherein the group represented by R2 is an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a cycloalkyl group of a 5- to 7-membered ring, a phenyl group, a tolyl group, a naphthyl group, or a heterocyclic group of a 5- to 6-membered ring containing 1 to 4 nitrogen atom, oxygen atom or sulfur atom; and the group represented by R 3 is a hydrogen atom or the group represented by R 2 .

Claim 9

The method according to Claim 6, wherein the ballast group represented by R 1 is a ballast group necessary for imparting diffusion resistance to the cyan coupler represented by the formulae [I] and [II] and the cyan dye formed from said cyan coupler.

Claim 10

The method according to Claim 6, wherein the eliminable group represented by Z is a halogen atom; or an aryloxy group, a carbamoyloxy group, a carbamoylmethoxy group, an acyloxy group, a sulfonamide group or a succinimide group, of which oxygen atom or nitrogen atom is bonded directly to the coupling position.

Claim 11

The method according to Claim 6, wherein the cyan coupler is selected from the group consisting of the cyan couplers represented by the formula [III], the formula [IV] and the formula [V] shown below: wherein R 4 in the formula [III] is an unsubstituted aryl group or an aryl group substituted with at least one of substituents selected from the group consisting of -SO 2 R 2 , halogen atoms, -CF 3 , -NO 2 , -CN, -COR 6' -COOR 6 , -SO 2 OR 6 , (wherein R 6 represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a cycloalkyl group of a 5- to 7-membered ring, or an aryl group selected from phenyl group, tolyl group, naphthyl group), and R 7 represents a hydrogen atom or a group represented by the R 6 ); R5 in the formulae [IV] and [V] is an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a cycloalkyl group of a 5- to 7-membered ring, an aryl group selected from phenyl group, tolyl group, naphthyl group, or a heterocyclic group of a 5- to 6-membered heterocyclic ring containing 1 to 4 nitrogen atom, oxygen atom or sulfur atom; and Z and R 1 in the formulae [III], [IV] and [V] are the same as defined above.

Claim 12

The method according to Claim 10, wherein the group represented by R 4 in the Formula [III] is a substituted or unsubstituted phenyl group.

Claim 13

The method according to Claim 10, wherein the groups represented by R 6 and R 7 in the formula [III] and the group represented by R5 in the formulae [IV] and [V] include as a substituent a halogen atom introduced therin.

Claim 14

The method according to Claim 10, wherein the ballast gruoup represented by R is a group represented by the formula [VI] shown below: wherein J represents an oxygen atom or a sulfur atom or a sulfonyl group; k is an integer of 0 to 4; i is 0 or 1; when k is 2 or more, R8 exsiting in number of two or more may be either the same or different; R7 is an alkylene group having 1 to 20 carbon atoms which may be straight, branched or substituted with aryl group; R 8 represents a monovalent group selected from the group consisting of hydrogen atom, halogen atoms, straight or branched alkyl groups having 1 to 20 carbon atoms, heterocyclic groups, straight or branched alkoxy groups having 1 to 20 carbon atoms, aryloxy groups, hydroxy, acyloxy groups, carboxy, straight or branched alkyloxycarbonyl groups having 1 to 20 carbon atoms, aryloxycarbonyl groups, alkylthio groups having 1 to 20 carbon atoms, acyl groups, acylamino groups, sulfonamide groups, carbamoyl groups and sulfamoyl groups.

Claim 15

The method according to Claim 6, wherein pH value of the bleach-fixing solution ranges from 5 to 9.

Claim 16

The method according to Claim 14, wherein pH value of the bleach-fixing solution ranges from 6 to 8.5.

Claim 17

A bleach-fixing solution for light-sensitive silver halide color photographic material, comprising a diethylenetriamine pentaacetic acid iron (III) complex salt and having a pH value of 4 or higher.

Claim 18

A bleach-fixing solution for light-sensitive silver halide color photographic material, comprising a diethylenetriamine pentaacetic acid iron (III) complex salt and having a pH value of 4 or higher.

Claim 19

The bleach-fixing solution according to Claim 16, wherein the pH value ranges from 5 to 9.

Claim 20

The bleach-fixing solution according to Claim 17, wherein the pH value ranges from 6 to 8.5.

Claim 21

The bleach-fixing solution according to Claim 16, wherein said solution has a silver ion concentration ranging from 5 to 50 g/liter when calculated in terms of metalic silver.