Processing agent for silver halide color photosensitive material and processing method thereof
AssigneeChugai Photo Chemical Co. Ltd.
InventorHiroyuki Habu
Life of this patent
Estimating the term…
Abstract
Processing with adding either of the following compounds (a), (b) and (c) to a bleaching and fixing processing solution is performed. (a) at least one selected from a group having a structure represented by a general formula [I] as described below; 1 (b) at least one of an aminopyridine-type compound with acid dissociation constant (pKa) thereof is in the range of 5.5 to 8.5; (c) at least one of a polyethyleneimines having a structure represented by the following general formula [II]. 2
Claims16
A processing agent for silver halide color photosensitive material comprising at least one of following compounds (a),(b) and (c):
- (a) at least one selected from a group having a structure represented by a following general formula [I],
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- wherein, in the formula [I], each of R.sup.1 and R.sup.2,represents at least one of a normal chain and a branching alkylene group which is substituted for an amino group, and n is an integer of 0 to 2, R.sup.11, R.sup.12, R.sup.13, R.sup.14 and R.sup.15 each represents at least one of a hydrogen atom, an alkyl group of a normal chain having 1 to 4 carbon atomes and a branching alkyl group having 1 to 4 carbon atoms, the normal alkyl group and the branching alkyl group are substituted for at least one of the amino group, a sulfone group and a hydroxyl group and acid dissociation constant (pKa) is in a range of 5.5 to 8.5;
- (b) at least one of aminopyridine-type compounds with acid dissociation constant (pKa) thereof being in a range of 5.5 to 8.5;
- (c) at least one of polyethyleneimines having a structure represented by a following general formula [II],
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- wherein, in the formula [II], A represents at least one of the hydrogen atom and the hydroxyl group, and m is an integer of 4 to 360.
A method of processing silver halide photosensitive material comprising steps of;
- performing color development process of the silver halide photosensitive material,
- fixing process of the silver halide photosensitive material using a fixing solution having a fixing ability, comprising at least one of following compounds (a), (b) and (c):
- (a) at least one selected from a group having a structure represented by a general formula [I] as described below,
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- wherein, in the formula [I], each of R.sup.1 and R.sup.2, represents at least one of a normal chain and a branching alkylene group which is substituted for at least one of an amino group, and n is an integer of 0 to 2, R.sup.11, R.sup.12, R.sup.13, R.sup.14 and R.sup.15 each represents at least one a hydrogen atom, an alkyl group of a normal chain and a branching alkyl group having 1 to 4 carbon atoms, the alkyl group is substituted for at least one of the amino group, a sulfone group and a hydroxyl group and acid dissociation constant (pKa) is in a range of 5.5 to 8.5;
- (b) at least one of an aminopyridine-type compounds with acid dissociation constant (pKa) thereof being in a range of 5.5 to 8.5;
- (c) at least one of a polyethyleneimines having a structure represented by a following general formula [II]
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- wherein, in the formula [II], A represents at least one of the hydrogen atom and the hydroxyl group, and m is an integer of 4 to 360.
Dependencies are inferred from the claim text.