USH1508HExpiredUtilityPatentIndex 62
Image-forming process
Est. expiryJun 18, 2013(expired)· nominal 20-yr term from priority
Inventors:HIRANO MASATO
G03C 5/30G03C 1/061G03C 2001/108
62
PatentIndex Score
2
Cited by
8
References
10
Claims
Abstract
An image-forming process for silver halide photographic material is disclosed, in which the photosensitive material have at least one silver halide emulsion layer on a support and contains a hydrzaine compound in the emulsion layer or other constitutional layers. The image-forming process comprises developing the photographic material containing the hydrozine compound of formula (I) with the developing agent of formula (II). ##STR1##
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. An image-forming process for a silver halide photographic material having at least one silver halide emulsion layer on a support and containing a hydrazine compound in the emulsion layer or in another layer which comprise development processing in a developing solution after exposing, wherein the above hydrazine compound is represented by the following formula (I) and the developing solution contains a developing agent represented by the following formula (II) and substantially no dihydroxybenzene developing agent: ##STR15## wherein R 1 represents an aliphatic group or an aromatic group; R 2 represents a hydrogen atom, an alkyl group, an aryl group, an unsaturated heterocyclic group, an alkoxy group, an aryloxy group, an amino group, a hydrazino group, a carbamoyl group, or an oxycarbonyl group; G 1 represents --CO--, --SO 2 -, --SO--, ##STR16## --CO--CO--, a thiocarbonyl group, or an iminomethylene group; both A 1 and A 2 represent a hydrogen atom, or one represents a hydrogen atom and the other represents an alkylsulfonyl group, an arylsulfonyl group, or an acyl group; R 3 is the same as those groups defined for R 2 or may be different from R 2 ; provided that at least one of R 1 and R 2 has a ballast group, at least one of R 1 and R 2 has a group enhancing adsorption to a silver halide grain surface, R 1 has a trialkylammonium group, or R 1 has an alkylthio group including a cycloalkylthio group or an arylthio group, except that R 1 is not ##STR17## wherein R 7 represents a group containing three or more units of --CH 2 CH 2 O-- in sequence or a group containing a pyridinum group; and n is 1 or 2; ##STR18## wherein R 21 and R 22 each represent a hydroxy group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonylamino group, a mercapto group, or an alkylthio group; P and Q each represent a hydroxy group, a carboxyl group, an alkoxy group, a hydroxalkyl group, a carboxylalkyl group, a sulfo group, a sulfoalkyl group, an amino group, an aminoalkyl group, an alkyl group, or an aryl group, or P and Q represent an atomic group forming a 5- or 7-membered ring together with two vinyl carbon atoms on which R 21 and R 22 are substituted and a carbon atom on which Y is substituted; Y represents ═O or ═N--R 23 ; and R 23 represents a hydrogen atom, a hydroxyl group, an alkyl group, an acyl group, a hydroxyalkyl group, a sulfoalkyl group, or a carboxyalkyl group.
2. The image-forming process as claimed in claim 1, wherein the silver halide emulsion layer or hydrophilic colloid layers contain at least one of an amine derivative, an onium salt, a disulfide derivative, and a hydroxymethyl derivative as a nucleation accelerator.
3. The image-forming process as claimed in claim 1, wherein the pH of the developing solution is from 10.0 to 12.0.
4. The image-forming process as claimed in claim 1, wherein a 1-phenyl-3-pyrazolidone compound and/or a p-aminophenol compound are further present as an auxiliary developing agent.
5. The image-forming process as in claim 1, wherein the hydrazine compound represented by formula (I) is represented by formula (X); (R.sub.11).sub.3 N.sup.+ -R.sub.12 -L.sub.11 -(R.sub.13 -L.sub.11).sub.m -R.sub.14 -NHNH-G.sub.11 -R.sub.15 X.sup.- (X) wherein L 11 represents a single bond, --O--, --S--, --NR 16 --, --CO, --SO 12 --, --P(O)(G 12 R 16 )--, or the combination thereof; L 12 represents --SO 2 NR 16 --, --NR 16 SO 2 NR 16 --, --CONR 16 --, --NR 16 CONR 16 --, or -G 12 P(O)(G 12 R 16 )NR 16 --, in which G 12 represents a single bond, --O--, or --NR 16 --, wherein R 16 represents a hydrogen atom, an aliphatic group, or an aromatic group; G 11 is the same as G in formula (I), and R 15 is the same as R 2 in formula (I); R 11 represents an aliphatic group or an aromatic group (three R 11 's may be the same or different), and R 12 , R 13 and R 14 each represents a divalent aliphatic group or aromatic group; m is 0 or 1, and X - represents a paired anion portion in the case where X - forms a paired anion or an intermolecular salt.
6. The image-forming process as in claim 1, wherein the hydrazine compound represented by formula (I) is present in an amount of 1×10 -6 to 5×10 -2 mole per mole of Ag.
7. The image-forming process as in claim 1, wherein the nuclaration accelerator is present in an amount of 1.0×10 -2 to 1.0×10 2 mole per mole of the hydrazing compound.
8. The image-forming process as in claim 1, wherein the developing agent represented by formula (II) is ascorbic acid or erysorbic acid.
9. The image-forming process as in claim 1, wherein a developing time is from 5 second to 3 minutes.
10. The image-forming process as in claim 1, wherein one of A 1 and A 2 in formula (I) represents a hydrogen atom and the other represents an alkylsulfonyl group substituted with a halogen atom, an ether group, a sulfonamide group, a carbonamide group, a hydroxyl group, a carboxy group or a sulfonic acid group; an arylsulfonyl group substituted with a halogen atom, an ether group, a sulfonamide group, a carbonamide group, a hydroxyl group, a carboxy group or a sulfonic acid group; or an acyl group substituted with a halogen atom, an ether group, a sulfonamide group, a carbonamide group, a hydroxyl group, a carboxy group or a sulfonic acid group.Cited by (0)
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