P
USH1508HExpiredUtilityPatentIndex 62

Image-forming process

Assignee: FUJI PHOTO FILM CO LTDPriority: Jun 18, 1993Filed: Jun 20, 1994Granted: Dec 5, 1995
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-modified
What 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.

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