JPS63241546A - Formation of image by silver salt diffusion transfer - Google Patents

Abstract

PURPOSE:To make a composition to be proceeded and/or a photosensitive element to unmixed black tone, without depressing the max. density by incorporating a specified compd. in said composition and/or said element. CONSTITUTION:The composition to be processed and/or the photosensitive element contains the compd. shown by formula I. In formula I, R0 is hydrogen or halogen atom, alkyl, a substd. alkyl, a substd. or an unsubstd. cycloalkyl, alkoxy, a substd. alkoxy, a substd. or an unsubstd. alkylsulfonyl, a substd. or an unsubstd. arylsulfonyl or a sulfamoyl group, etc., R1 and R2 are each hydrogen atom, alkyl or a substd. alkyl or aryl group, (m) is an integer of 1-4. Thus, said composition and/or the element are improved the sensitivity, and are made the unmixed black tone, and the toe gradient of an image makes hard gradation without depressing the max. density.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an image forming method by silver salt diffusion transfer and a film unit used therein.

(Prior Art) Image forming methods by diffusion transfer using silver salts such as silver halides are well known. Specifically, various methods include, for example, treating a photosensitive silver halide emulsion layer that has been imagewise exposed with an alkaline aqueous solution containing a developer, a silver halide bath agent, and a film forming agent (thickener), and then exposing it to light. The unexposed silver halide grains are reduced to silver using a developer, while the unexposed silver halide grains are converted into a transferable silver complex salt (using a silver halide bath agent), and this silver complex salt is superimposed on the emulsion layer. The method consists of diffusing and transferring imbibition to a silver precipitant-containing layer (image-receiving layer), and then reducing the silver complex salt with a developer with the help of a silver precipitant to obtain silver W.

When carrying out this method, for example, a photosensitive element having a photosensitive silver halide emulsion layer on a support, a receiving IM5 element having an image receiving layer containing a silver precipitant on a support, a developer, a halogen A film unit is used which incorporates a processing element consisting of a breakable container containing an aqueous activated alkaline solution containing an ammonizing agent and a film-forming agent. First, the emulsion layer of the photosensitive element is imagewise exposed, and then the photosensitive element and the image receiving element are placed one on top of the other so that the emulsion layer and the image receiving layer of the image receiving element face each other. The desired image is formed on the image-receiving layer by passing the JA element between a pair of rollers so that the viscous alkaline water bath solution is spread and left for a predetermined period of time, and then peeling off the image-receiving element from the photosensitive element. You can get nine prints.

(Problems to be Solved by the Invention) The difficulty of this method lies in making the tone of the obtained image pure black. There are many toning agents that lower the maximum density, but there are few that make the color tone pure black without lowering the maximum density.

(Object of the present invention) An object of the present invention is to provide a novel image forming method using silver salt diffusion transfer.

Another object of the present invention is to provide a method of increasing sensitivity and obtaining pure black images without lowering the maximum density.

Means for Solving the Problems The object is to develop an image-exposed light-sensitive element comprising a subsensitive silver halide emulsion layer with an alkaline processing composition in the presence of a silver halide solvent. and converting at least a portion of the unexposed silver halide in the emulsion layer into a transferable silver complex salt, and transferring at least a portion of the complex salt to an image-receiving layer containing a silver precipitant to form an image on the image-receiving layer. This can be achieved by an image forming method using silver salt diffusion transfer, characterized in that the processing composition and/or the photosensitive element contains a compound represented by the following general formula (I). .

In the formula, R may be the same or different, and may be a hydrogen atom, a halogen atom (for example, 2% Br), an alkyl group, preferably an alkyl group having 7 to ≠ carbon atoms (for example, a methyl group, an ethyl group), a substituted An alkyl group, preferably a substituted alkyl group in which the number of carbon atoms in the alkyl moiety is /~/Hiro, a substituted or unsubstituted cycloalkyl group, preferably one having 3 to 1≠ carbon atoms, and an alkoxy group, preferably one having 1 to 1≠ carbon atoms. , a substituted alkoxy group, preferably one having a carbon number of /-/hiro (for example, a methoxy group, an ethoxy group), a substituted '1. + represents an unsubstituted alkylsulfonyl group, preferably a carbon number 1~/≠nomo, a substituted or unsubstituted arylsulfonyl group, preferably one having a carbon number of 6~/μ, a sulfamoyl group (however, the nitrogen atom of the sulfamoyl group an alkyl group having less than 100 carbon atoms;
Substituted alkyl group, cycloalkyl group, substituted cycloalkyl group, aryl group, substituted aryl group,! The substitution 1fc containing at least /a1 of ~7-membered nitrogen, oxygen, and sulfur atoms may be substituted with an unsubstituted heterocyclic group, and the λ substituents on the nitrogen atom are mutually They may be connected to form a ring. ), alkyl is replaced by an arylsulfonamide group (nine, alkyl moiety or fc is aryl moiety Fi, and may have a substituent.

The nitrogen atom of the sulfonamide group can be an argyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aryl group, a substituted aryl group, etc. having at most 1 carbon atoms. ~7
It may be substituted with a substituted or unsubstituted heterocyclic group containing one or more of at least seven types of member nitrogen atoms, oxygen atoms, and sulfur atoms. ), a carbamoyl group (7′c and the nitrogen atom of the carbamoyl group is an alkyl group having a carbon number of /・Hiro or less,
Substituted alkyl group, cycloalkyl group, [substituted cycloalkyl group, aryl group, substituted aryl group, substituted or unsubstituted heterocycle containing at least one i@ of 5- to 7-membered nitrogen atom, oxygen atom, and sulfur atom It may be substituted with a γ group, or the λ positions on the nitrogen atom may be connected to each other to form a ring. ), a carboxamide group (however, the nitrogen atom of the carbonamide group is an alkyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aryl group, a substituted aryl group, ! to 7jj nitrogen atoms.

Substituted or unsubstituted compound containing at least i species f: i or more of oxygen atoms and sulfur atoms. It may be substituted with an R group. ), a heterocyclic group, preferably a substituted or unsubstituted heterocyclic group containing at least one nitrogen atom, oxygen atom, or sulfur atom of j to 7jj, an IIt-substituted or unsubstituted aryl group, preferably a carbon number /V or less, acyl group preferably carbon number l≠ or less, substituted or unsubstituted alkoxycarbonyl group preferably carbon number λ~
Substituted or 'ft- is an unsubstituted acyloxy group, preferably one with a carbon number of λ~/4t, a substituted or unsubstituted alkylthio group, preferably one with a carbon number of 7~/≠, ti
t-substituted or unsubstituted arylthio group, preferably having 6 carbon atoms
～/4t, 7th class amino group or its salt, number of carbon atoms/
The alkyl group of ~7μ is preferably an aryl group of 6 to 1≠ carbon atoms or a salt thereof, provided that the alkyl group or aryl group may have a substituent. % represents a nitro group, hydroxy group, carbamoyl group, sulfonic acid group, or cyan group
RI R2 each has a hydrogen atom, an alkyl group, preferably a carbon number /~/4L (e.g. methyl group, ethyl group)
, a substituted alkyl group, preferably the number of carbon atoms in the alkyl portion is 1
-/μ (eg, methoxyethyl group, ethoxyethyl group, chloroether group, benzyl group) and aryl groups (eg, phenyl group, naphthyl group) are excluded.

m represents an integer from / to μ.

The compound represented by general formula (I) may be represented by the following structural formula as a ketoenol tautomer.

The use of the compound represented by the general formula (I) used in the present invention is from rXio' to /X per treatment composition/ky.
/(7 mol is preferable, 1xlQ-5~jXIO"m
ol is preferable, and further koXl0-5 to jX10
is particularly preferred.

For photosensitive material elements, /X/0' ~ /X/0
'mo7/TrL2 is preferred, 1xlO-7
~/×70-5 mol/kun 2 is particularly good.

Examples of effective compounds in general formula (I) are shown below, but the present invention is not limited to only the compounds of Hokon et al.

(2(-tJLJM The present invention will be explained in more detail below.

In the imaging methods and film units of the present invention, the developer may be present in the photosensitive element or the processing composition element. Preferably, a developer is included in the processing composition. Developers include, for example, hydroquinone, tertiary-buterhydroginone, hydroxyl group f, in the para or ortho position,! Benzene or naphthalene-based organic compounds are used.

Furthermore, reductase/acids such as those described in U.S. Pat. I get irritated. Additionally, U.S. Patent J, 217. Particularly preferred are the hydroxylamine developers described in No. 2 and No. 3,03 of the same.

The amount of developer used is 1002 equivalents of the processing composition (#) O0/V-
It is preferable to contain ≠Or, and /~λoy is particularly preferable.

Further, as a developer, a /-aryl-3-pyrazolidinone compound or an alkyl-substituted p-amine phenol described in No. 1)8≠T133110 may be used in combination with the above developer.

Silver halide bath agents may be present in processing elements, light-sensitive elements and/or image-receiving elements. Among these, the processing element is the most preferred. U.S. Court of Appeals, No. 117.27μ, 137
．． The cyclic compounds described in No. 271 and No. 274 are suitable, and among them, uracil, urazol, 6-methyluracil and the like are preferred.

Further preference is given to alkali metal thiosulfates, especially the sodium or potassium salts, and also as described in U.S. Pat.
No. J, ? 71a, jμ No. 7, II-, 0
0F, /67 issue, same tt, o3a, s3r issue, fwJu
, OuA, No. 361, 4<, 01fi7, 9J
'1, l151≠, Oμ71ri No.51, same μ, 107
．． Disulfonylmethane compound of No. /7 and JP-A No. 7-330, U.S. Pat. Dihydroxypyrimidine compounds with thioether foundation of No. J and μ, 2//, and No. zi 2, etc. Takehiro Nakabei, 211, 6
No. 17, same≠,, 2, 47. λ! ≠ issue and same≠, λ Otsu 7. You can choose from aminothioethers of λ-6. These compounds can be used alone or in combination, and if two or more types of cyclic imidized adducts or dihydroxypyrimidine compounds with a thioether foundation are used together, white crystals will remain on the surface of the print even if it is stored for a long time. This has the advantage of eliminating precipitation.

The amount of silver halide bath agent added is 1 o of alkaline processing composition.
It is preferable to contain 0.7 to 309 per ot, and 0.
．． 21-iot is most preferred.

The treatment composition may further contain other adjuvants known in the silver salt diffusion transfer process, such as anti-fog agents and two-tone toning agents.
agents), stabilizers, etc. may be included. In particular, the inclusion of oxyethylamino compounds, such as triethanolamine, is useful in U.S. Pat.
No. 1, it is useful for increasing the shelf life of processing liquids.

When applying the process used in this invention by distributing it as a thin layer between a photosensitive element and an image receiving element, the processing liquid is a polymeric film former, a concentrated Hydroxyethylcellulose and sodium carboxymethylcellulose are particularly useful for this purpose and are suitable for providing suitable viscosities according to known principles of diffusion transfer photography. Contain in the processing solution at an effective concentration.

The processing solution may further contain other auxiliaries known in the silver diffusion transfer process, such as antifoggants, toning agents, etc.
ents), stabilizers, etc. may be included. In particular, the inclusion of oxyethylamino compounds, such as triethanolamine, is described in US Pat. It is useful for increasing the shelf life of processing liquids, as described in No.

The processing liquid as described above is preferably stored in a breakable container and used as a processing element. Any known breakable container and its material can be used, and these are described, for example, in U.S. Pat. No. 3, Oj &
, ≠ri No. 1, same 3. OjJ, II-12, same 3
．． /73,110・, 3゜710.907, 3
, 133, 311-jig, μ, 303.7jO,
It is described in detail in the same μ, No. 303.71/etc.

The image-receiving element in the present invention is coated on a support carrying an image-receiving layer containing a silver precipitant, such as baryta paper, 3N cellulose or polyester. Such image receiving elements are preferably prepared by coating an optionally subbed support with a coating solution of a suitable cellulose ester, such as cellulose diacetate, in which a silver precipitant is dispersed. The gill n+ cellulose ester layer is subjected to alkaline hydrolysis to convert at least a portion of the cellulose ester in the depth direction to cellulose. In particularly useful embodiments, silver is added to the unhydrolyzed portions of the silver precipitation layer and/or the underlying cellulose ester layer containing cellulose esters, such as cellulose diacetate. Contain 7WA or higher mercapto compounds suitable for improving the tone, stability or other photographic properties of the transferred image. Such mercapto compounds are utilized during imbibition by diffusing from the position where they were initially placed. This type of receiver element is disclosed in U.S. Patent No. 3,607,262.
It is stated in the issue.

Examples of silver precipitants include heavy metals such as iron, lead, zinc, nickel, cadmium, tin, chromium, copper, cobalt, and especially noble metals such as gold, silver, platinum and palladium. Other useful silver precipitating agents are sulfides and selenides of precious metals, especially sulfides of mercury, copper, aluminum, zinc, cadmium, cobalt, nickel, silver, lead, antimony, bismuth, cerium, magnesium, gold, platinum and palladium. and selenides of lead, zinc, antimony and nickel.

Particularly preferred are sulfides of gold, platinum, and noradium.

Further, it is preferable that the image receiving sheet has a ninth image stabilizing layer 1 which improves the storage stability, and a cationic polymer electrolyte is preferable as the stabilizer, and in particular, JP-A-Sho! Tar/AA Rihiro 01 American Painting Patent 3 Riyor P P % Japanese Patent Publication Show 1
1-/4A2JJ! , same Ju-/24027, same 14<
-/j113! , same j3-3o321r1 same j4'-#
Water-dispersed latex described in 2274c, U.S. Patent 23 μr j 444, U.S. Pat.
! Preferred are the polyvinylpyridinium salts described in US Pat. No. 3,705, the water-soluble quaternary ammonium salt polymers described in US Pat.

As the binder for the image stabilizing layer, cellulose acetate is preferred, and cellulose acetate having a degree of acetylation of 0-μ94 is particularly preferred.

Furthermore, it is preferable to provide an intermediate layer between the image-receiving layer and the layer containing a toning agent or stabilizer. Preferred materials for the intermediate layer include gum arabic, polyvinyl alcohol, and polyacrylamide.

Further, it is preferable to provide a peeling layer on the surface of the image-receiving layer in order to prevent the treatment liquid from adhering to the surface of the image-receiving layer during peeling after spreading the treatment liquid. Preferred release layers include gum arabic, hydroxyethyl cellulose, methyl cellulose, polyvinyl alcohol, polyacrylamide, and sodium alginate, as well as US Pat.
No. 72, 02≠, same J, 120. Mention may be made of those described in No. Tatata and British Patent No. t, 36o, 6jJ.

Further, it is preferable to provide one layer of a dispersible polymer for neutralization between the image-receiving layer and the support. Preferred acidic polymers include copolymers of unsaturated carboxylic acids such as acrylic acid, maleic acid, methacrylic acid, itaconic acid, crotonic acid;
Contains acidic cellulose enzyme conductors. Specific examples include butyl acrylate/acrylic acid copolymer, cellulose acetate hydrogen phthalate, ethyl methacrylate/methacrylic acid copolymer, and methyl methacrylate/methacrylic acid copolymer. In addition, polymers containing sulfonic acid groups such as polystyrene sulfonic acid and acetalized products of benzaltehyde sulfonic acid and polyvinyl alcohol are also useful.

In particular embodiments of the invention, image-receiving layers can be incorporated into the photosensitive elements described below. For example, on a polyethylene terephthalate sheet, an image-receiving layer containing a silver precipitant, a light-reflecting layer containing a white pigment such as titanium dioxide, a light-shielding layer containing a light-absorbing substance such as carbon black, a photosensitive halogenated layer, etc. A preferred example is one provided with a silver emulsion layer. In such an embodiment, even if the photosensitive silver halide emulsion layer is not completely peeled off after the diffusion transfer process,
Since the layer behind υ is shielded by the light-reflecting layer, the image f' formed on the image-receiving layer can be observed through the entire polyethylene terephthalate sheet.

Furthermore, in the present invention, a photosensitive element obtained by coating a photosensitive silver halide emulsion on a support is preferably used.

In the photosensitive silver halide emulsion used in the present invention, any of silver bromide, silver iodobromide, silver iodochlorobromide, silver chloride, and silver chloride may be used as the silver halide.

Preferred silver halide is silver iodobromide or silver iodochlorobromide containing less than 10 moles of silver iodide. Particularly preferable is 3
It is silver iodobromide containing silver iodide from molar to 10 molar.

The average grain size of silver halide grains in a light-sensitive emulsion (the grain size is the grain diameter for spherical or nearly spherical grains, the ridge length for cubic grains, and is expressed as an average based on the projected area) is particularly important. Although it does not matter, it is preferably 3 μ or less, and further preferably /, jA or less, but particularly preferably O1
l~/, 2μ.

The particle size distribution may be narrow, wide, or even.

The silver halide grains in the light-sensitive emulsion may have an equiaxed heavy crystal shape such as a cube or an octahedron, or may have an irregular crystal shape such as a spherical shape or a plate shape. It may also have a composite crystalline form. It may also consist of a mixture of particles of different crystalline forms.

The interior and surface layers of the silver halide grains may be composed of different phases, or may be composed of a uniform phase. Further, the particles may be such that the latent image is mainly formed on the surface, or may be such that the latent image is mainly formed inside the particle. Particles in which latent images are mainly formed on the surface are preferred.

The thickness of the photosensitive emulsion layer is θ,! ~r, oμ, especially o, t~
t, oμ and υ, coating of silver halide grains @uO0/~
Jf/fi2, preferably f@0.2-1.517m2.

Usually used as a silver halide photographic emulsion in a light-sensitive emulsion.
The emulsion may be prepared by a method of chemical sensitization or spectral sensitization, if necessary, and may contain an antifoggant, a stabilizer, a hardening agent, a coating aid, an antistatic agent, and the like. Also, a vehicle such as gelatin is used in the emulsion.

Exposure to obtain a photographic image may be carried out using a conventional method. i.e. natural light (sunlight), tungsten electric light,
Any of a variety of known light sources can be used, such as fluorescent lamps, mercury lamps, xenon arc lamps, carbon arc lamps, xenon flash lamps, and cathode ray tube flying spots. Exposure time is 7 to 171,000 seconds, which is normally used in cameras.
Exposure times shorter than 171,000 seconds, such as xenon flash lamps or cathode ray tubes, as well as ///θ
Exposures of 4 to //10 seconds can be used, or exposures longer than 1 second can be used.

The spectral composition of the light used for exposure can be adjusted using a color filter depending on the heart wall. Laser light can also be used for exposure. Alternatively, exposure may be performed using light emitted from a t″L-order phosphor excited by electron beams, X-rays, γ-rays, α-rays, or the like.

The arrangement and connection method of each element for combining a photosensitive element, an image receiving element, and a processing element to form a film unit, such as fC, as described above, is described in, for example, NebleLtes, Handbook of Photography and Librography (HAND). B
OOK OE PH0TOGRAPHHYAND R
EPROGRAPHHY), 7th edition, @ pages 212-216, and a particularly preferred embodiment is described in U.S. Patent 3.3.
! It is thoroughly explained in No. 0,221, so you can refer to it.

The present invention is applicable not only to a type in which the image-receiving element and the photosensitive element are separated after the processing composition is developed, but also to a type in which the film unit is integrally molded.

(Effects of the Invention) According to the present invention, when the compound represented by the general formula (I) is contained in the processing composition and/or the photosensitive element, high sensitivity can be achieved without lowering the overall density, and furthermore, pure black tone can be achieved. It is possible to increase the color tone of the image, and as a secondary effect, it is possible to harden the foot gradation of the image.

(Examples) Hereinafter, the present invention will be explained in more detail based on Examples, but the present invention is not limited to these Examples.

Example 1 Silver halide grains are formed by a photosensitive sheet single jet method, physically ripened by a conventional method, desalted, and further chemically ripened to form a silver iodobromide emulsion (containing iodide!).

1 mol 4) 1-obtained. The average diameter of the silver halide grains contained in this emulsion was O.tamicron.

This emulsion contained 0.12 moles of silver halide. 17% of this emulsion was collected in a Yuzu pot.
Dissolve in a constant temperature bath at 0C.

The orn sensitizing dye 3-(j-chloro-co[
λ-Ethyl-3-(3-ether-λ-penzothiazolinylidene)pro-3-benzoxazolio)propane-sulfonate, Hankro m color sensitive i(μ-[λ-[
(3-Etherbenzotheazoline-(λ-ylidene)-2
-methyl-7-propenyl]-3-benzothiazolio)
phthanesulfonate) and Hiro-hydroxy-6-methyl-/, 3. ja, 1 Ovt 1% aqueous solution by weight of 7-thitrazaindene, 10 ml 7 wt% aqueous solution of sodium dichlorotriazine salt, and 0rst aqueous solution of sodium dodecylbenzenesulfonate, ribo wo, i weight% methanol? i
! 10 tons of liquid were added and mixed and stirred at 30°C.

This completed emulsion was coated on a polyethylene terephthalate film base containing titanium dioxide which had been primed to a dry film thickness of 3 microns, and dried to obtain a sample. at the same time,
Polymethyl methacrylate latex (average size 3.jμ) was added to an aqueous gelatin solution and coated so that the dry film thickness was 1 micron. The amount of silver applied is 0, jtt
/rn2.

Image-receiving sheet A solution of cellulose acetate (acetate degree RA4)/If and styrene-maleic anhydride copolymer i, zt dissolved in 270 ml of acetone and 30 d of methanol was placed on a polyethylene laminate paper with a thickness of 100 ml/r IL2. It was coated and dried. On top of this, the following compounds were mixed with cellulose acetate with a degree of acetylation of 11 to give 29/@2 and ≠W/m, respectively.
It was coated and dried so that it had a thickness of 2.

X: y: Z'' j: Hiro7. A 10% cellulose acetate acetone bath solution (o, ojf/m2) was applied so that the dry film thickness was 109/m2.Furthermore, on top of this, an aqueous solution of polyacrylamide, an aqueous solution of dimethylol urea (!俤), and acetic acid were applied. (I0 Yu)
Add and mix at a concentration of 1.2J, and λ!
The coating thickness was rnl/m2. Furthermore, on top of this, 3t
s Cellulose acetate acetone/methanol (li/
/) The following solution containing a finely dispersed silver precipitant was applied to the solution. This coating solution contains /, λJX10'mol/m
So that the coating amount is 2/-Phenyl-! - Fully containing mercaptoimidazole. The dry film thickness was O0jμm. To this applied material, the following alkaline solution 'i/rRt/,
Coat it in the ratio of 2, wash it with water and dry it to make an image-receiving sheet.

Alkaline potassium hydroxide (purity t6%) μ≠, 31 water
λoowl methanol rooml treatment liquid potassium hydroxide (, rt section) - Otsu0 no titanium dioxide 3v uracil
1Ajf/6-methyluracil ≠jthydroxyethylcellulose 70f zinc oxide
10? N,N-bismethoxy7etherhydroxylamine jOftriethanolamine 7vtetrahydropyrimidinenaone O0≠Vyo-mercaptotetrazoylbenzenesulfonate sodium θ, /? λ, 4C-
dimercaptopyrimidine 7 0
．． 31ft The next monster JX10'r is added to this treatment liquid.
The above processing solution was spread between the photosensitive sheet and the image-receiving sheet, and then peeled off after 30 seconds (t'c).

The color v4 at that time is the maximum density and relative density (D-0,6
) are shown in Table-7. The minimum concentration is 0. IO
showed the value of The foot gradation in the table is the value of r at the foot portion of the characteristic curve, and is expressed as a relative value when compared to -/'1f100.

Example - A photosensitive sheet 7 was prepared by adding the following compound jX/0-7 mol/m2 to the silver iodobromide emulsion 11 of a photosensitive sheet shown in %Im Example/, and the processing liquid did not contain this compound. I used the one prepared according to the recipe. Then, the same development process as in Example 1 was carried out, and the results are shown in Table 2.

Note that in the table, "-" indicates that the maximum concentration is too low to make a comparison.

Patent Applicant: Fuji Photo Film Co., Ltd. Procedural Amendment Document, Showa Exit, January 2f, 1, Case Indication: 1986 Patent Application No. 76j17
No. 2, Title of the invention: Image forming method by silver salt diffusion transfer 3, Relationship with the case of the person making the amendment Patent applicant: 210-4 Nakanuma, Minamiashigara City, Kanagawa Prefecture, Subject of amendment: Akira
Column 5 of ``Detailed Description of the Invention'' of the book, ``Detailed Description of the Invention'' of the Statement of Contents of the Amendment is for 1M in the itth line from ``Treatment Composition'' below. ” to be deleted.

2) After "Tojittewa" in the 10th line of the first page, "Polymer acids described in Tokko Sho≠r-336 7/ are used. For example, maleic anhydride is used. ” is inserted.

3) Insert "styrene-maleic anhydride copolymer, ethylene-maleic anhydride copolymer," after "for example," on the first page/third line.

4) Page 27, line 7 "o, tr-1, 2μ" "o, 3~1. Hiromu" and correct it.

5) 22nd midday row """of "γ" and correct it.

Procedural amendment ■, Small case indication Showa Buko year long-awaited application No. 74j17 2, Title of invention One-hoe formation method by silver salt diffusion transfer 3
, Person making the amendment 4, Subject of the amendment 19862, filed on January 2nd, 2017 - ≠ date 5, Contents of the amendment Paragraph 2) of the procedural amendment submitted on January 2, 1989 ≠ date is as follows. Correct as expected.

2) After "Tojittewa" on the 70th line of the first page, the polymer acids described in Japanese Patent Publication No. Sho≠I-Jj4-7 are used. For example, insert ``maleic anhydride'' as them.

Claims (1)

Claims: A light-sensitive element containing an imagewise exposed light-sensitive silver halide emulsion layer is developed with an alkaline processing composition in the presence of a silver halide solvent to remove the unexposed halogenation of the emulsion layer. In an image forming method by silver salt diffusion transfer, the method includes forming at least a part of silver as a transferable silver complex salt, and transferring at least a part of the complex salt to an image receiving layer containing a silver precipitant to form an image on the image receiving layer. An image forming method by silver salt diffusion transfer, characterized in that the processing composition and/or the photosensitive element contains a compound represented by the following general formula (I). (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the formula, R_0 may be the same or different, and is a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, a substituted or unsubstituted cycloalkyl group, an alkoxy group, a substituted Alkoxy group, substituted or unsubstituted alkylsulfonyl group, substituted or unsubstituted arylsulfonyl group, sulfamoyl group, alkyl or arylsulfonamide group, carbamoyl group, carbonamide group, heterocyclic group, substituted or unsubstituted aryl group, Acyl group, substituted or unsubstituted alkoxycarbonyl group, substituted or unsubstituted acyloxy group, substituted or unsubstituted alkylthio group, substituted or unsubstituted arylthio group, primary amino group or its salt, alkyl group or aryl group. Represents a substituted secondary or tertiary amino group or a salt thereof, nitro group, hydroxy group, carboxyl group, sulfonic acid group, or cyano group. R_1 and R_2 each represent a hydrogen atom, an alkyl group, a substituted alkyl group, or an aryl group. m represents an integer from 1 to 4.