JPS5858662B2 - Photographic materials for diffusion transfer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographic material for diffusion transfer in which a diffusion transfer body of metallic silver or dye is formed by diffusion transfer, and more specifically, a novel diffusion transfer photographic material having improved film properties for the photographic material for diffusion transfer. The present invention relates to photographic materials for use in photography (hereinafter referred to as diffusion transfer materials).

Conventionally, silver salt diffusion transfer materials and dye diffusion transfer materials are known as diffusion transfer materials.

Silver salt diffusion transfer materials are made by exposing a photosensitive silver halide emulsion to light,
Developed with an alkaline processing composition, and the unexposed areas of silver halide e-silver halide solvent or the image-forming substance made into a silver complex salt with a complexing agent are diffused into the silver precipitate layer (or image-receiving layer) to obtain a positive image. .

Dye diffusion transfer materials are made by exposing a light-sensitive silver halide emulsion to light,
Development is carried out with an alkaline processing composition and at the same time an imagewise distribution image is obtained with a dye image-forming material.

At least a portion of this dye image-forming material is transferred to an overlapping image-receiving layer to obtain a positive image.

These silver salt and dye diffusion transfer materials are processed with alkaline processing compositions to obtain images.

If the Alka IJIIE processing composition is left in the system after transfer image formation, undesirable diffusion of imaging materials and contaminants into the image receiving layer will occur.

A layer containing a neutralizing agent (hereinafter referred to as a neutralizing layer) is used to obtain a good image, to stop development at a desired point, and to achieve a pH lower than that at which the image-forming substances will not diffuse. It is known.

The neutralizing agent used in this neutralizing layer is usually used in excess due to its mechanism of action.

This inevitably results in an increase in the film thickness, and as a result, the image obtained during storage is distorted, and when the diffusion transfer material is rolled up after application, the stickiness is severe and so-called blocking occurs, which is extremely difficult to do. Sometimes it even became impossible to apply.

As a result of studies, the present inventor has found that the so-called sila/coupling agent (hereinafter referred to as the compound of the present invention) represented by the above general formula
It has been found that the above-mentioned drawbacks can be overcome by using it as a neutralization layer and/or a timing layer.

General formula (wherein R1, R2, R3 are hydrogen atoms, halogen atoms,
hydroxyl group, an alkyl group which may have a substituent having 1 to 4 carbon atoms, -0R4 or 10COR4°R4 is an alkyl group which may have a substituent having 1 to 4 carbon atoms, A is a vinyl group Or it represents an alkyl group which may have a substituent having 1 to 4 carbon atoms.

) Since the compound of the present invention contains silicon in its low molecular weight, it is considered to have an appropriate level of stability and thus improve image storage properties and so-called blocking.

Furthermore, by using the compound of the present invention, sufficient film strength is provided even in the presence of an alkaline treatment agent for a long period of time, and so-called brushing, which causes streak-like clouding, is virtually eliminated.

Next, typical examples of the compounds of the present invention are listed below.

Exemplary compound (CI(8)2SiC12 2CH3(C6H5)StC123(CH3)3 SiC# 4 (C6H5)2CH3SIC1 5CH-CH8IC13 6(CH2=CH)CH3SiC12 7) (CH3) S 1NH8s (CHs )
R8) CHs Si(OCH3) R9) C
6H5S 1 (OCH3) 5 (10) CHa (
Ca H5) S t (OCH3) 2(11) (
C6H5)2 S j (OCH3)2(12) (C
H30) 3 S t (CH2) 3 N) (CH2
CH2NH2'ha(13)(CH30)3Si(CH2)30CH2CH
-CH2(14) (CH30)3St(CH2)s
5H(15) CH2=CH-8i (OCOCH3
) 3(16)(CH30)3Si(CH2)3Cl■
e (17) (HO)3 S i (CH2)a SC(
NH2)2 cl(18) (CH30CH2CH20)
3SICH-CH2(19) (CH3)a S 1C
H2CH(y0 CH3 (20) (CH30)3SiCH2CH2CH20C-
C-CH2(21)(CH30)2CH3Si(CH2
)3NHCH2CH2H2 (22) (CH30)3Si(CH2)3NHCH2C
H2NH2(23)(CH30)3SICH2CH2C
H2Cl(24)(CH30)3SiCH2CH2CH
2SH(25) (C2H50) 3 S t CH=
CH2 The compound of the present invention represented by the above general formula can be easily synthesized, for example, according to the method described in US Pat. No. 3,661,584.

The concentration of the compounds of the invention is usually 0.001-10% by weight, preferably 0.005% by weight of the binder used.
~5 weight section.

Furthermore, even when a layer is formed using a neutralizing agent alone without using a binder, the concentration of the compound of the present invention is the same as when using a binder.

As a binder, any binder that is compatible with the compound of the present invention can be used in combination to form a neutralization layer or a timing layer. Examples of the binder used include gelatin, modified with an acylating agent, etc. gelatin, natural polymer compounds such as casein, polyvinyl alcohol, hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, ethylcellulose, cellulose acetate, polyvinyl acetate, partial hydrolyzate of polyvinyl acetate, polyvinylpyrrolidone, polymethacrylic acid Methyl, polyethyl methacrylate,
Examples include synthetic polymer compounds such as polybutyl acrylate, polyethyl acrylate, polyacrylamide, polymethacrylamide, polydiacetone acrylamide, ethylene-vinyl acetate copolymer, vinyl chloride-vinyl acetate copolymer, and mixtures thereof. It will be done.

The neutralizing layer of the present invention can be placed anywhere as long as it does not have a neutralizing function and prevent the formation of transferred images, but it is preferably installed in U.S. Pat.
No. 3,415,646 and No. 3,473,
It may be provided between the image-receiving layer and the image-receiving layer support as described in US Pat. No. 925, etc., or as described in US Pat. It may be provided between the photosensitive layer and the photosensitive layer support, and is described in U.S. Pat. Nos. 3,594,164 and 3,594,165.
It may be provided between a processing sheet or an image-receiving layer and an image-receiving layer support as described in US Pat.
In the case of the layer structure described in No. 615,421, it may be provided between the photosensitive layer and the photosensitive layer support and/or between the image receiving layer and the image receiving layer support.

Further, in the case of the layer structure described in JP-A-47-3480 having a peeling means, it may be provided between the image-receiving layer and the image-receiving layer support.

The neutralizing layer of the present invention is preferably separated from the spreading treatment agent layer by an intermediate layer (so-called timing layer).

This timing layer prevents an undesirable decrease in the density of the transferred image due to a rapid decrease in the pH of the processing composition due to the neutralization layer before the required development of the silver halide emulsion layer and formation of the diffusion transferred image. It serves to prevent and delay the pH drop until after the required development and transfer have taken place.

The intermediate layer may include gelatin, polyvinyl alcohol as described in U.S. Pat. No. 3,362,819, partially acetalized polyvinyl alcohol, partially hydrolyzed polyvinyl acetate, as described in U.S. Pat. No. 3,419,389. Cyanoethylated polyvinyl alcohol, hydroxypropyl methyl cellulose, isopropyl cellulose as described in U.S. Pat. No. 3,433,633, polyvinylamide as described in Japanese Patent Publication No. 46-12676, polyvinylamide as described in Japanese Patent Publication No. 48-41214 Polyvinylamide graft copolymers such as those described above are useful, and combinations of latex liquids and penetrants as described in JP-A-49-22935 and JP-A-49-91642 are useful; Binders are also useful.

These polymers used in the neutralization layer or timing layer of the present invention can also be cured by a crosslinking reaction using an aldehyde compound such as formaldehyde, an N-methylol compound, an epoxy compound, or the like.

The object of the present invention can be achieved if the compound of the present invention is present in either the neutralization layer or the timing layer, but it is preferably present in the neutralization layer, and more preferably in both the neutralization layer and the timing layer. This is the case where it exists.

A photosensitive element (hereinafter referred to as the diffusion transfer material of the present invention) that can be used in a diffusion transfer material using the compound of the present invention (
The photosensitive element according to the present invention hereinafter contains a silver halide emulsion in the case of a silver salt diffusion transfer material, and a silver halide emulsion and a color image forming substance in the case of a dye diffusion transfer material.

Silver halide emulsions are hydrophilic colloids of silver bromide, silver iodide, silver chloride, silver iodobromide, silver chlorobromide, silver chloroiodide, silver chloroiodobromide, and mixed silver halides. It is a dispersion,
In addition to conventional emulsions, various manufacturing methods such as so-called double jet emulsions, conversion emulsions, Lippmann emulsions, U.S. Pat.
No. 2,541,472 No. 2,563,785,
No. 2,861,885, No. 2,563,785, No. 2,861,885, No. 3,367,778
No. 723,019, French Patent No. 1,520,821, etc., and may be manufactured using any of the direct positive emulsions that are pre-fogged, and The grain size, content, mixing ratio, etc. of silver halide differ depending on the type of diffusion transfer material.

As the hydrophilic protective colloid which is a dispersant for silver halide, various natural or synthetic colloidal substances such as gelatin, gelatin derivatives or polyvinyl alcohol are used alone or in combination.

In addition, this silver halide is active in gelatin, sulfur sensitizers such as allitylocarbamide, thiourea, cystine, etc.
Selenium sensitizers, noble metal sensitizers, such as metal sensitizers and sensitizers such as ruthenium, rhodium, iridium, etc., alone or in combination as appropriate, or in US Pat.
No. 23,499, No. 2,399,083, No. 3,
Chemical sensitization can be carried out by the methods described in Japanese Patent Nos. 297,446 and 3,297,447.

Additionally, silver halide emulsions can be optically sensitized, e.g., U.S. Pat. No. 2,526,632;
No. 6, No. 2.493,748 and No. 3,384
Diffusion transfer materials can be obtained by using three types of silver halide emulsions which are sensitized with cyanine dyes and merocyanine dyes, each of which has a different sensitivity wavelength range.

This emulsion is also disclosed in U.S. Patent Nos. 2,131,038, 2,403,927, and 2,566,263.
No. 2,597,915, No. 2,694,71
No. 6, No. 2,444,605, No. 2,728,6
No. 63, No. 2,839,405, No. 2,886,
No. 437, No. 3,220,839, No. 3,236
, No. 652, No. 3,266,897, No. 3,28
Triazoles, tetrazoles, imidazoles, azaindenes, quaternary benzothiazolium compounds, zinc as described in No. 7,135, No. 3,397,987 and British Patent No. 623.448, etc. Alternatively, it may be stabilized with a cadmium compound and may also contain a quaternary tempenium salt type, polyethylene glycol type or thioether type sensitizing compound.

Additionally, U.S. Patent Nos. 2,886.43 and 2,94
No. 4,900, No. 3,046,132 and No. 3
, 294,540, etc., may also be included.

and also suitable gelatin plasticizers such as glycerin, dihydroxyalkanes such as 1,5-pentadiol, esters of ethylene bisglycolic acid, bis-ethoxydiethylene glycol succinate, amides of acrylic acids, latex, etc. It can also contain formaldehyde, halogen-substituted fatty acids such as mucobromic acid, compounds with acid anhydride groups, dicarboxylic acid chlorides, vinylesters of methanesulfonic acid, and aldehyde groups separated by 2 to 3 atoms. Various gelatin hardening agents such as sodium bisulfite derivatives of dialdehydes, N-methylol compounds, methylol compounds, epoxy compounds, and aziridine compounds, spreading agents such as saponin, and coating aids such as sulfosuccinates. photographic additives.

Furthermore, various additives commonly used in photography, such as antifoggants and ultraviolet absorbers, can also be included, if necessary.

Furthermore, ascorbic acid derivatives, azaindene compounds, cadmium salts, and U.S. Pat. No. 2,933 that do not absorb visible light
Organic sulfonic acid compounds such as those described in , No. 390 and No. 2,937,089 can also be included as supersensitizing additives.

The silver salt diffusion transfer method used for the diffusion transfer material of the present invention is as follows:
When the Alka IJ I'lE treated braid is used, metallic silver is produced by reduction of silver halide in the exposed area.

On the other hand, the silver halide in the unexposed area is, for example, a thiosulfate such as sodium thiosulfate or ammonium thiosulfate; a thiocyanide such as sodium thiocyanide or potassium thiocyanide; or thiourea.

It becomes a diffusible silver complex salt and diffuses with a silver halide solvent such as ammonia or a silver complex salt forming agent.

Various methods can be used to form the dye image used in the diffusion transfer material of the present invention depending on the method by which the dye image-forming material releases the diffusible dye upon development of silver halide.

The dye image-forming material may already contain finished dye moieties, dye moieties may be formed during development and/or subsequent processing, and the components essential for dye formation may migrate to the image-receiving layer where they are formed. Pigment may form.

Among the systems in which dyes are formed during development and/or subsequent processes, the first typical system is the so-called dye developer system.

A dye developer is a compound that has both a dye part and a silver halide developer part in one molecule, and as a result of oxidation of the dye developer as a dye image forming substance by silver halide, it undergoes alkali injection treatment. It transforms into a diffusible dye in the composition.

The oxidized dye developer has lower solubility and less diffusivity in the processing composition compared to the original dye developer and is fixed near the reduced silver halide.

Preferably, the dye developer is substantially insoluble in the acid-free to neutral aqueous medium, but contains sufficient dissociable residues to render the dye developer soluble and diffusible in the alkaline semi-processing composition. Contains at least one.

Such dye developers can be incorporated into the light-sensitive element, particularly in or adjacent to the silver halide emulsion layer, and have a spectral absorption %ltE corresponding to the sensitive wavelength range of the silver halide emulsion. Used in negative elements in combination with dye developers.

If a negative element having at least one such combination of photosensitive units is diffusely transferred to an image receiving element, a monochrome or multicolor positive transferred image can be obtained in one development process.

This first type of diffusion transfer material is described in a number of patent specifications, such as British Patent No. 804.971.

As a typical dye developer, for example, U.S. Patent No. 2.9
No. 83,606, No. 3,135,605, No. 3.
No. 218,164 No. 3,255,001, No. 3
．． No. 345,163, No. 3,415,644, No. 3.42 +, No. 892, No. 3,453,107,
Same No. 3,482,972, Same No. 3,551,406, Same No. 3,563,739, Same No. 3,594,165
No. 3,597,200 and the like.

Further, in the present invention, a hydrolyzable dye developer into which a hydrolyzable acid group has been introduced and a short wavelength shift dye developer can also be used.

Representative examples of these include U.S. Patent No. 3,196,0
No. 14, No. 3,230,082, No. 3,230,
No. 083, No. 3.230084, No. 3,230,
No. 085, No. 3,295,973, No. 3,307
, No. 947, No. 3,312,682, No. 3,32
No. 9,670, No. 3,336,287, No. 3,5
No. 79,334, specification No. 3,826,801, Japanese Patent Publication No. 36-379, No. 36-12393, No. 372
Compounds described in JP-A No. 241 and the like can be mentioned.

Furthermore, in the present invention, it is also possible to effectively use a leuco dye developer whose dye portion has been reduced and temporarily converted into a colorless leuco form.

Representative examples of these include U.S. Patent No. 2,892,7
No. 10, No. 2,909,430, No. 2,992,
No. 105, Specification No. 3,320,063, JP-A No. 4
No. 8-66440 and No. 4866441, No. 50
Compounds described in JP-91324 and the like can be mentioned.

A typical second method is one in which a developing agent oxidized by silver halide reacts with a dye image-forming substance to release a diffusible dye. Type A uses active non-diffusible substances (so-called diffusible dye-releasing couplers) that can couple with the oxidized developing agent, and as a result of the coupling reaction alkali 'J I'lE Releases and releases soluble and diffusible pigments into the treated tissue.

Diffusible dye-releasing couplers of this type may also be so-called equivalent-type couplers in which the coupling reaction site in the coupler is replaced by a group that can be cleaved off by an oxidized developing agent.

The electronically conjugated system of the dye to be released may be pre-incorporated into the coupler or may be formed by a coupling reaction.

The former coupler exhibits a spectral absorption customization close to that of the emitted dye, whereas the latter coupler, in principle, exhibits a spectral absorption customization close to that of the emitted dye, whereas the latter coupler exhibits a spectral absorption customization similar to that of the emitted dye. There is no direct relationship with the spectral absorption of the dye.

Diffusible dye-releasing couplers used in type A above include US Pat. Nos. 3,227,550 and 3,765.
, No. 886, No. 3,880,658, British Patent No. 8
No. 40,731, No. 904,364, No. 904,
No. 365, Specification No. 1.038,331, Special Publication No. 4
It is described in Japanese Patent Application No. 50-133879 and Japanese Patent Application No. 50-118480.

In type B, the oxidized developing agent and the diffusion are formed by a condensation reaction Q with a dye-releasing coupler, followed by an intramolecular ring-closure reaction with a substituent adjacent to the reaction site of the coupler. The dye residues dissociate and a diffusible dye is released.

Aromatic 1, especially in the 4-position of the phenol or aniline nucleus
After the grade amino developer undergoes oxidative coupling, an azine ring is formed with the sulfonamide group containing the dye moiety located at the 3-position of the phenol nucleus or the aniline nucleus, and as a result, diffusion with the sulfinic acid group is inhibited. A dye is released.

Diffusible dye-releasing couplers used in Type B include US Pat. Nos. 3,443,940 and 3,73
It is described in the specification of No. 4,726 and Japanese Patent Publication No. 48-32129.

Type C, as a result of development, is oxidized by an oxidized auxiliary agent and undergoes ring closure or decomposes with an alkali to release a diffusible dye.

Compounds such as hydroquinones and 3-pyrazolidones can be used as auxiliary agents for ring closure by this oxidation.

This type of dye-imaging material is described in U.S. Pat. No. 3,245;
No. 789, No. 3,443,939, No. 3,443
, No. 940, No. 3,698,897, No. 3,72
No. 5,062, No. 3,728, 1.13, No. 3,
No. 880,658, Belgian Patent No. 796,041,
Specification No. 796.04/2, JP 4833826
No. 49-114424, etc.

A third method uses a dye image-forming material that is cleaved with alkali to release a diffusible dye, but cleavage does not substantially occur in the presence of an oxidized developer; For example, body-forming substances are disclosed in JP-A-49-11162.
It is described in Publication No. 8 (so-called τ○).

As the dye moiety in the above-mentioned various color image forming homogeneities, various dyes such as azo dyes, azomethine dyes, anthraquinone dyes, azine dyes, and indophenol dyes can be used, as well as precursors of these dyes.

For example, JP-A-48-66440, JP-A-49-11162
Leuco dye shown in Publication No. 8 etc., Japanese Patent Publication No. 36-123
No. 93, JP-A-49-111628, JP-A No. 50-115
．． Shift-type dyes obtained by acylating auxochromes as shown in Japanese Patent Publication No. 528, etc., diazonium compounds as described in Japanese Patent Application Laid-Open No. 10035/1983, or dyes that react with oxidation of color developing agents, etc. Formable couplers and the like may also be used.

In the first and second methods, a positive diffusion transfer image is obtained by performing a development process using a negative silver halide emulsion.

On the other hand, in the second method, a negative diffusion transfer image is obtained by performing a development process using a negative silver halide emulsion.

For this reason, the second method requires an inversion operation and is therefore used, for example, as a direct positive emulsion, i.e., U.S. Pat.
No. 8,982, No. 2,592,550 and No. 3
, 227,552, etc.; British Patent Nos. 443,245 and 46;
Emulsions containing couplers described in U.S. Pat. No. 2,730, U.S. Pat. No. 2,005,837, U.S. Pat.

Alternatively, a layer provided adjacent to a negative-working silver halide emulsion layer (also containing a diffusible dye-releasing coupler and physical development) may be treated with a developer solution containing a silver halide solvent.

Specific examples of this are described in U.S. Pat. No. 3,243,294 and U.S. Pat. No. 3,630,731.

Furthermore, it reacts with the oxidation product of the active ingredient to form 1-phenyl-
Adjacent to a negative-working silver halide emulsion layer containing a development inhibitor-releasing compound (so-called DIR material) such as 5-mercaptotetrazole, the diffusion contains a dye-releasing coupler and a spontaneously reducible metal salt. A layer may also be provided.

Specific examples of this include U.S. Patent Nos. 3,148,062, 3,227,551, and 3,227,554.
No. 3,364,022, No. 3,701,78
Specification No. 3, Japanese Patent Publication No. 43-21778 and No. 47-
It is described in Publication No. 49611 and the like.

In the present invention, any combination of negative-working silver halide emulsion and dye image-forming substance can be used, and the method for providing negative and positive dye images can be arbitrarily selected.

The dye image-forming substance used in the present invention can be contained in a hydrophilic protective colloid such as gelatin or polyvinyl alcohol, which is a carrier of the silver halide emulsion layer or its adjacent layer in the light-sensitive element, depending on the type of the dye image-forming substance. It can be distributed in the following manner.

For example, the color image-forming substance used in the present invention is dissolved in as little organic solvent as possible, and is dissolved in a hydrophilic protective colloid such as gelatin or polyvinyl alcohol, which is a carrier for the silver halide emulsion layer or its adjacent layer in the light-sensitive element. distributed.

As the organic solvent, a high boiling point solvent, a low boiling point solvent that can be removed from the dispersion by evaporation, or an organic solvent easily soluble in water can be used alone or in combination.

Particularly useful high-boiling solvents in the present invention include N-n
-butylacetanilide, diethyl laurylamide, dibutyl laurylamide, dibutyl phthalate, tricresyl phosphate, triphenyl phosphate and the like.

Ethyl acetate, methyl acetate, 4-methylcyclohexanone, and the like are useful as low-boiling solvents.

The low boiling point solvent can be removed by evaporation during drying after coating or can be removed by the method described in US Pat. No. 2,801,171 before coating.

As organic solvents that are easily soluble in water, 2-methoxyethanol, dimethylformamide, etc. can be used.
These solvents can be removed by the method described in US Pat. No. 3,396,027.

Also, instead of or in addition to the high boiling point solvent, various lipophilic polymers can be used.

Examples of this type of lipophilic polymer include polyvinyl acetate, polyacrylic ester, and polyester containing polyhydric alcohol and polybasic acid.

Japanese Patent Publication No. 43-13837, Japanese Patent Publication No. 48-32131, Japanese Unexamined Patent Application Publication No. 50-17637 or U.S. Patent No. 3,8
The methods described in US Pat. No. 32,173 and others are useful for dispersing the color imaging materials used in the method of the present invention.

Furthermore, color image-forming substances having water-soluble groups such as carboxyl groups or sulfonic groups can be used by dissolving them in water or alkaline aqueous solutions and then dispersing them in hydrophilic protective colloids. can be used after being neutralized.

Furthermore, the color image forming substance used in the present invention is
-32131 publication and U.S. Patent No. 3.832,17
The hydrophilic compound described in Specification No. 3 and the like may be directly dispersed in the protective colloid without using a high boiling point solvent or the like.

The amount of color imaging material that can be used in the present invention can vary widely depending on the compound used and the desired result, but for example, the water-soluble organic colloid coating width to be applied is from about 0.5 to about 10 Preferably, weight percentages are used.

Sulfites, such as those described in U.S. Pat. No. 3,287,133, may also be present to further stabilize the dispersed color imaging materials.

When performing three-color color photographic processes, it is advantageous to use an interlayer in the light-sensitive element.

The intermediate layer may be a hydrophilic polymer such as gelatin, derivative gelatin, polyacrylamide, partially hydrolyzed polyvinyl acetate, hydroxypropyl cellulose, or mixtures thereof, as well as those described in U.S. Pat. No. 3,625,685. Hydrophilic polymers are composed of polymers with pores formed from the latex of the hydrophobic polymer.

In order to prevent color mixing from occurring due to diffusion of the oxidized developer to other layers, a coupler, JP-A-48-15, is placed in the middle.
Amitracine compound described in Publication No. 532, West German Patent No. 2
．． It is also possible to add a hydrazone compound described in JP 123,268 or a so-called interlayer interaction inhibitor.

As the support for the photosensitive element of the present invention, various natural or synthetic polymers can be used, such as paper, glass, cellulose nitrate, cellulose acetate, polyvinyl acetal, polystyrene, polyethylene terephthalate, polypropylene, polyethylene, etc. Depending on the purpose, a variety of natural or synthetic polymers can be used. It may be opaque.

Water vapor permeable supports or oxygen barrier supports as described in US Pat. No. 3,573,044 may also be used advantageously.

Furthermore, when using a transparent support, it should be colored to the extent that it does not hinder exposure and observation of the formed image, but prevents the silver halide emulsion layer from fogging during processing due to light rays from the edges of the support. You can also do it.

After exposure, the photosensitive element described in detail above is superimposed on the image receiving element described below, and generally there is an Alka'J
It is processed by developing l'lE processing solution.

When a dye developer is used as a color image forming material in a dye diffusion transfer material, when the Alka IJ l'IE processing solution is applied, reduction of silver halide and oxidation of the dye developer occur in the exposed area, resulting in oxidation. The dye developer has low diffusion in the alkaline processing solution and is fixed near the reduced silver halide.

On the other hand, unoxidized dye developer is generally insoluble in a neutral aqueous solution, but soluble and diffusible in an alkaline processing solution, and the dye developer in the unexposed area acts on the alkaline semi-processing solution. It functions as a diffusible dye by itself.

(Thus, in the above and below descriptions, the term diffusion dye is defined as the diffusion emitted from the color image-forming material to include the dye as well as the diffusion in the alkali dye developer.

) When using a non-diffusing coupler capable of coupling reaction with the above-mentioned oxidized active ingredient as a dye image-forming substance, coupling of the oxidized product of the herbal drug with the oxidized product of the crystallized herbal drug using an alkaline injection processing solution is possible. The dye is released by reaction or by subsequent ring closure reaction into the alkali IJa treatment solution and diffusion.

Furthermore, when the compound is used as a dye image-forming material, reduction of silver halide and oxidation of the dye image-forming homogeneity occur in the exposed area, resulting in ring closure due to oxidation or decomposition with an alkali to release a diffusible dye. The oxidized dye imaging material further releases diffusible dye as a result of the ring closure reaction.

Alternatively, alkali IJ I in the presence of a silver halide developer
'lE processing solution is applied to oxidize the developer, the oxidized developer oxidizes the dye image-forming material, and the oxidized dye image-forming material decomposes and diffuses out the dye. discharge.

Furthermore, when using a dye image-forming homogeneous dye that releases a diffusible dye upon cleavage with an alkali, but substantially no cleavage occurs in the presence of an oxidized developer, the oxidized dye produced by the reduction of silver halide in the exposed area is Due to the presence of oxidized developer, no diffusible dye is produced, but since no oxidized developer is present in the unexposed areas, the dye image-forming homogeneous material is cleaved by alkali to produce a diffusible dye.

The image-receiving element that mordants the silver complex salt or diffusible dye that has been diffusely transferred from the photosensitive element can be appropriately selected depending on the purpose as described below.

As the support for the image-receiving element, various materials similar to those for the photosensitive element can be used depending on the purpose.

The support of the image receiving element may also be transparent or opaque.

It is essential that the image receiving element has an image receiving layer containing a silver precipitant or a mordant.

As the silver precipitant or mordant suitable for the image-receiving layer of the image-receiving element, any agent can be used as long as it has a preferable mordant effect on the silver complex salt or diffusible dye that is diffusely transferred.

Examples of silver precipitants that can be used in the photographic material for silver salt diffusion transfer of the present invention include sulfide, selenide,
such as polysulfides, polyselenides, thioureas, heavy metals, heavy metal salts, stannous halides, fogged silver halides, curly silver and complex salts of heavy metals with compounds such as thioacetamides, dithiooxamides and dithioburets. Known silver precipitants are included.

Examples of silver precipitants and image receiving elements containing such silver precipitants as described above include U.S. Pat. No. 2,698,237;
, 698,238, 2,698,245, 2,774,667, 2,823,122, 3,396,018 and 3,369,901
It is stated in the specification of the No.

In particular, colloids of noble metals such as silver, gold, platinum, and palladium are useful as silver precipitants.

A silver precipitant is made in the presence of a proteinaceous colloid such as gelatin and applied onto the image receiving sheet.

The silver precipitant can be formed in the image receiving layer or can be applied by precipitating or vapor depositing a suitable silver precipitant onto the surface of the image receiving layer or sheet.

Further, colloids and colloidal particles such as norica bentonite, diatomaceous earth, fine glass particles, metal oxides such as titanium dioxide, colloidal alumina fine particles aluminum oxide, and zirconium oxide can also be contained in the image-receiving layer together with a silver precipitant. .

Examples of the mordant that can be used in the dye diffusion transfer material of the present invention include acidic dyes or amines, and when the dye is mordanted, vinyl methyl ketone as described in U.S. Pat. No. 2,882,156. polymers of aminoguanidine derivatives, poly-4-vinylpyridine as described in U.S. Pat. No. 3,148,061, styrene/N as described in U.S. Pat. No. 3,709,690.
-(3-maleimidopropyl)-N,N-dimethyl-N
-(4Phenylbenzyl)ammonium chloride polymers Polymers containing N-substituted maleimide units as described in U.S. Pat. No. 3,639,357, U.S. Pat. No. 3,27
No. 1,147 and No. 3,271,148, non-polymeric organic cation mordants such as N-laurylpyridinium bromide, cetyltrimethylammonium bromide, methyl/l/-t') Compounds such as -n-lauryl ammonium para-toluene sulfonate, i-t, methyl-ethyl-cetylsulfonium iodide, benzyl-toluene-phenylphosphonium chloride, and the like are useful.

In addition to these mordant compounds, anions of compounds containing polyvalent metals such as thorium, aluminum, and zirconium also have a mordant effect on dye image-forming substances.

These mordant compounds include film-forming compounds such as gelatin, derivative gelatin such as acid-treated gelatin, polyvinyl alcohol, polyacrylamide, polyvinyl methyl ether, hydroxyethyl cellulose, N-methoxymethyl polyhexyl methylene adipamide, polyvinyl pyrrolidone, etc. It is preferable to form a film together with a chemical compound.

When the dye image-forming material is a dye-forming component such as a diffusion focus puller, the image-receiving layer contains other coupling components that react with this component to form a dye, such as P-phenylenediamine derivatives and oxidizing agents or diazonium. Contains compounds.

Image-receiving elements containing this type of image-receiving layer include U.S. Pat.
British Patent No. 2.802,735, British Patent No. 3,676,124, British Patent No. 1,158,440 and British Patent No. 1.15.
Those described in the specification of No. 7,507 etc. can be used.

Further, a toning agent can also be used to improve the color tone of the transferred image.

The toning agent is added to the alkaline processing composition, to the silver halide emulsion, to the image-receiving layer or to a layer above the image-receiving layer.

Examples of color toners used include 2-mercaptothiazonine, 2-amine-5-mercapto-13,4-thiadiazole, 2-thionimidazolidene, 2-mercapto-5-methyloxazoline and 2-thio Noimidacillin selenotetrazole, 5- as described in U.S. Pat.
Contains foam inside the sheets.

Furthermore, as described in JP-A-50-47626, which is a special example, a method in which a mordant and alkali are contained in the treatment solution can also be advantageously used in the method of the present invention.

If what is diffusely transferred to the image-receiving layer is not a dye but a leuco dye or a dye precursor, it is possible to contain, for example, an oxidizing agent, a color developing agent, or a diazonium compound to convert these into dyes. is necessary.

Image-receiving elements containing these oxidizing agents, color developing agents, diazonium compounds, etc. are disclosed in US Pat.
No. 47,049, No. 2,698,798, No. 3,
No. 676,124, French Patent No. 2.232,776
No. 2,232,777 JP-A-Sho, 50-8
No. 0131, etc., and compounds that convert leuco dyes or dye precursors into dyes, which are described in the above-mentioned patents, can also be used.

Also, French Patent No. 2,232,776, French Patent No. 2.23
The method described in Japanese Patent No. 2,777, Publication No. 10402/1996, etc., in which an oxidizing agent is present in the alkali treatment composition, can also be used in the diffusion transfer material of the present invention.

In addition, the image-receiving element may also contain various additives commonly used in photographic technology, such as ultraviolet absorbers and optical brighteners.

Furthermore, it is also possible to provide an intermediate layer between the silver halide emulsion layer, color image forming material layer, mordant layer, etc. constituting the light-sensitive element and the image-receiving element.

In addition to hydrophilic colloids such as gelatin, these intermediate layers can contain various additives used in ordinary diffusion transfer materials.

The alkaline processing composition used in the present invention contains components necessary for developing the silver halide emulsion and forming a diffusible dye,
It has a strong alkaline property and generally has a pH of 10 or higher.

Alka IJ I'lE treatment compositions contain compounds such as alkali metal, alkaline earth metal hydroxides such as sodium hydroxide, potassium hydroxide, calcium hydroxide, lithium hydroxide, or sodium carbonate, diethylamine, and the like.

Further, an antifoggant such as benzo t-IJ azole can be added to the alkaline treatment composition, and a compound such as hydroxyethylcellulose or carboxymethylcellulose sodium salt can also be added as a thickener.

It is also possible to contain a dissolution accelerator described in Japanese Patent Application No. 50124727.

The alkaline treatment composition may also contain viscosity increasing compounds such as high molecular weight viscosity increasing compounds which are inert to alkaline solutions such as hydroquinoethyl cellulose and sodium carboxymethyl cellulose.

The concentration of the viscosity increaser is preferably about 1 to 5 weight φ of the alkali-treated composition, which is about 100% by weight of the alkali-treated composition.
Provides a viscosity of ~200,000 centipoise, which not only facilitates uniform spread of the alkaline IJ a processing composition during processing, but also allows the aqueous solvent to migrate to the photosensitive and image receiving elements during processing. When something is concentrated,
A non-flowable membrane is formed to help unite the film units after processing.

This polymer film can also serve to prevent image change by inhibiting further migration of image forming components to the image receiving layer after formation of the diffusion transferred image is substantially completed.

In addition to this, the alkaline processing composition may contain a light-absorbing substance such as carbon black to prevent the silver halide emulsion from being fogged by external light during processing. It is desirable in the present invention to add onium compounds, such as quaternary ammonium, to the composition.

Particularly useful onium compounds include 1-benzidyl-
2-picolinium bromide, ■-(3-bromopropyl)-2-picolinium-p-toluenesulfonic acid, 1
-Phenethyl-2-picolinium bromide, 2.4-
Dimethyl-1-phenethylpyridinium furomite, α
-Hycoline-β-naphthoylmethyl bromide, N, N
-Diethylpiperidinium bromide, phenethyltrimethylphosphonium bromide, dodecyldimethylsulfonium-P-toluenesulfonium, etc. are typical preferred compounds, and U.S. Patent No. 3,173,786
Onium compounds such as those described in No. 3,411,904 can also be used in the present invention.

In the second system, in which the silver halide oxidized product described above reacts with a coupler, a dye image-forming substance, to release a diffusible dye, a dye image is formed in the presence of an aromatic primary amine. However, a developing agent such as an aromatic primary amine is included in the alkali processing composition.

In this method, Japanese Patent Publication No. 41-17184, No. 4
The additives for alkaline injection treatment compositions described in JP-A No. 3-21778, JP-A-47-325, etc. are useful in the present invention.

Furthermore, the treatment composition may contain titanium dioxide, barium sulfate, zinc oxide, barium alumina stearate, calcium carbonate, kaolin, magnesium oxide, etc. as a light reflecting agent.

In addition, as a light reflection method, JP-A-46-486 and JP-A-47
A method such as that described in Japanese Patent No. 447 may also be used.

Furthermore, optical brighteners such as stilbene, coumarin, triazine, oxazole, etc. may be used in combination with the light reflecting agent.

Carbon black, JP-A-4726, JP-A No. 47-27, JP-A-47
It is also possible to add an indicator dye as described in Japanese Patent Application No.-28.

It is also possible to include development inhibitors, such as 1-phenyl-5-mercaptotetrazole, benzylaminopurine, and the like, in the photosensitive element, image-receiving element, or alkali processing composition.

It is also advantageous in the present invention to include auxiliary developers such as hydroquinone derivatives such as P-1-lylhydroquinone, catechol derivatives, phenidone, either in the photosensitive element, image receiving element or in the alkaline processing composition. .

Japanese Patent Publication No. 35-17383, U.S. Patent No. 2,939
, No. 788, No. 3,192,044, No. 3,46
No. 2,266, British Patent No. 1,243,539, Japanese Patent Application Publication No. 49-40128, Japanese Patent Application Publication No. 49-83440,
Any of the auxiliary developers described in specifications such as Japanese Patent No. 49-84238 and Japanese Patent No. 50-6340 can be advantageously used in the present invention.

The auxiliary developer can be added to the photosensitive element or the image-receiving element by being dispersed in a manner similar to the dispersion of the dye image-forming substance described above.

Further, an auxiliary developer may be uniformly contained in the image receiving element as described in Japanese Patent Application Laid-Open No. 49-131134.

Desensitizing agents such as those described in U.S. Pat. No. 3,579,333 may also be used.

The Alka'J IIE treatment composition used in the present invention is
Preferably, it is housed in a breakable container.

Such containers contain the alkaline treatment composition in a cavity created by folding a sheet of liquid- and air-impermeable material and sealing each edge so that when the film unit is passed through a pressurizing device, Advantageously, the internal pressure applied to the alkaline treatment composition causes it to rupture at a defined point to release its contents.

Materials used to form the container include a laminate of polyethylene terephthalate/polyvinyl alcohol/polyethylene, a laminate of lead foil/vinyl chloride-vinyl acetate copolymer, and the like.

Preferably, these containers are secured along the leading edge of the film unit and are adapted to spread the contained liquid substantially in one direction onto the surface of the photosensitive element.

Preferred examples of containers include U.S. Pat. No. 2,543,181, U.S. Pat.
No. 2,723,051, No. 3,056,49
No. 1, No. 3.056,492, No. 3,152.5
No. 15 and Specification No. 3,173,580, etc.

In the present invention, it is sufficient to apply an alkaline processing liquid to the photosensitive element and the image receiving element, which have been imagewise exposed as described above, in a superimposed state. may exist separately before exposure, or may be a unit in which both are combined.

After processing, the photosensitive element and the image receiving element may be integrated, or they may be separated.

U.S. Patent No. 3,415,644, U.S. Patent No. 3.415,6
No. 45, No. 3,415,646, No. 3.473,
No. 925, No. 3,573,042, No. 3.573
, No. 043, No. 3,594,164, No. 3.59
Any of the film units described in Belgian Patent No. 4,165, Belgian Patent No. 3,615,421, Belgian Patent No. 757,959 or Belgian Patent No. 757,960 can be used in the present invention.

In the practice of the present invention, the surface layer of the image receiving element contains hydrophilic colloids such as gelatin, derivatized gelatin, starch, dextran, polyvinylpyrrolidone, gum arabic, carboxymethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, guar gum, gum acacia, etc. The hydrophilic layer may also have a binder layer.

When the photosensitive element and the image-receiving element are separated to obtain an image after the development process, a so-called release agent is used.

The stripping agent is contained on the surface of the silver halide emulsion layer, on the image-receiving layer containing the silver precipitant or mordant, or in the processing composition.

As a suitable release agent, one having a composition different from that of the binder used in the silver halide emulsion layer is generally used.

For example, alkali-permeable polysaccharide, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, 4.4' dihydroxyphenol glucose, sucrose, sorbitol, inositol, resorcinol, phytate sodium salt, zinc oxide, microparticle polyethylene, microparticle polyethylene fluoride. ethylene,
Polyvinylpyrrolidone/polyvinylhydrodiene phthalate as described in US Pat. No. 3,325,283, ethylene-maleic anhydride copolymer as described in US Pat. No. 3,376,137, and the like are useful.

Each layer constituting the diffusion transfer material of the present invention contains a surfactant, such as saponin, an anionic surfactant such as an alkylaryl sulfonic acid based surfactant as described in US Pat. 133,816 and British Patent No. 1,022,
The aqueous solution of glycidol and alkylphenol as described in No. 878 is prepared by applying a coating composition containing adducts and the like by the coating method described below.

Furthermore, to facilitate the above-mentioned application, the coating composition may contain various thickening agents, such as acrylic acid-based polymers such as high molecular weight polyacrylamide, and other bondable polymers in the coating composition. Anion-containing polymers that exhibit a thickening effect through interaction with the ester are effective.

The diffusion transfer material of the present invention can be applied by the dip coating method, the air knife method, the curtain coating method or the Yoneka Patent No. 2.681,29.
It is manufactured by applying various coating methods such as the extrusion coating method using a hopper as described in the specification of No. 4.

Optionally, two or more layers can be added to U.S. Pat.
They can also be applied simultaneously by the methods described in British Patent No. 61,791 and British Patent No. 837.095.

The present invention can also be effectively used for methods of obtaining a silver halide emulsion layer by vacuum deposition as described in British Patent No. 968.453 and US Pat. No. 3,219,451. .

Each of the curable layers constituting the diffusion transfer material of the present invention can be cured using an inorganic or organic curing agent alone or in an appropriate combination.

The curing agents used in the present invention include aldehydes such as formaldehyde and succinic aldehyde, blocked aldehydes, ketones, carboxylic acid derivatives, carbonic acid derivatives, sulfonate esters, sulfonyl halides, vinyl sulfones, and active halides. Examples include compounds, epoxy compounds, aziridines, active olefins, incyanates, carbodiimides, mixed functional curing agents, and the like.

The present invention will be explained in more detail with reference to Examples below.
This does not limit the embodiments of the present invention.

Example 1 The following various image receiving elements (4) to (Gl) were prepared on a transparent film made of polyethylene terephthalate and having a thickness of 100 μm.

Image-receiving element (4) (1) Neutralization layer 63 g of poly(ethylene-maleic anhydride), 129 g of n-butyl alcohol, and 0.2 r/Ll of 85% phosphoric acid were returned for 14 hours.

Next, add 200ml of acetone to 100M of the content.
In addition, a neutralization layer with a dry film thickness of 23 μm was prepared.

(2) 60/30/butyl acrylate/diacetone acrylamide/styrene/methacrylic acid on the neutralization layer of the timing layer (1)
1740 polyacrylamide for 4/6 copolymer
(weight ratio) The dry film thickness of the latex coating solution containing 5μ
A timing layer was prepared by applying the following coating to form a timing layer.

(3) A coating solution having the following composition was applied onto the timing layer of image-receiving layer (2) to form an image-receiving layer having a dry film thickness of 6 μm.

Polyvinyl alcohol 12.9 water
340ml poly-4-vinylpyridine 6g glacial acetic acid
3M emulgen 1082 ice water solution
5ml Image Receiving Element (B) (1) Neutralizing Layer A 5% aqueous solution of polyacrylic acid was coated to a dry film thickness of 25μ.

(2) On the neutralization layer of the timing layer (1), a 3-mixed solution of acetyl cellulose [methyl ethyl ketone/methylene chloride/butyl celerol 5/4/1 (volume ratio)] was applied to a dry film thickness of 5 μm. .

(3) Image receiving layer This is the same as the image receiving layer of the image receiving element (4).

Image-receiving element (q to (F)) Same as image-receiving element (4) except that the compound of the present invention was added to the neutralization layer f of image-receiving element (A), IJ mother and timing layer polymer as shown in Table 1 below. be.

Image-receiving element (G) In the image-receiving element (B), 0.8 of the exemplified compound (16) was added to the weight of the neutralization layer polymer, and 0.8 of the exemplified compound (4) was added to the weight of the timing layer polymer. It is the same as the image receiving element (B) except that No. 06 was added.

The image-receiving elements (C) to (G) containing the compounds of the present invention showed almost no sticking when the timing layer was applied on the neutralization layer or when rolled and rubbed, and had excellent transparency.

On the other hand, image-receiving elements (A) and (B) were so stuck together that it was difficult to coat them over a long length.

Further, similar effects were obtained even without adding the compound of the present invention to the timing layer of the image receiving elements (q to (G)).

Table 2 shows the transmittance when the image receiving element (4) (G) was left indoors for 7 days.

Image receiving elements (C) to (G) had excellent transparency with no film deformation observed.

Further, even when the compound of the present invention was removed from the timing layer in the image receiving element (Q~(q), no film deformation was observed, and the transparency was excellent as in the results shown in Table 2.

Example 2 A photosensitive element was prepared by sequentially applying the following layers to gelatin-subbed cellulose acetate butyrate overcoated baryta paper.

(1) A gelatin photosensitive layer containing 1.5 g/m'' of silver in a silver iodobromide emulsion and having a dry film thickness of 6 μm was coated.

(2) Gelatin 1.5,! i'/m''.

The image receiving element was prepared up to the timing layer of Example 1 (4)
, (C) , (D) , (On the El coating sample, mix A liquid and B liquid consisting of the following composition to make a coating liquid,
It was prepared by coating to a wet film thickness of 50 μm.

Solution A Snowtex 50ml 1N aqueous sodium sulfide solution 0.5ml Solution B N aqueous cadmium acetate solution 3rnl water
207721 Aerosol 01 Polyaqueous Solution 2TLl The following composition for alkaline treatment was prepared and used.

Water 100rrL
l Sodium sulfite 5.8g Carboxymethyl cellulose 5.1 Sodium hydroxide 2.7g Sodium thiosulfate 3.3!9 Hydroquinone
5.0g metol
1.8g Emassol 1130
A processing bag containing 5 ml of the above alkaline semi-processing composition was placed between the wedge-exposed light-sensitive element and the image-receiving element, and development processing was carried out using a roller presser.

After separating the photosensitive element and image receiving element after 60 seconds at room temperature, the maximum density (Dmax) and minimum density (Dmin) of the image after storing the image receiving element at 25° C. and 60% relative humidity for 7 days are determined.
) are shown in Table 3.

In (4), the glasses in the image were seen (C) and (D)
, not seen in (E).

Image-receiving element (C) containing the compound of the present invention, CD>
, (E) is Dm compared with the image receiving element (4) which does not contain
An increase in ax and a decrease in Dmin were observed.

Example 3 A photosensitive element was prepared by sequentially coating the following layers on a gelatin-subbed acetylcellulose film base.

(1) Cyan dye developer layer 1.4-bis(α-methyl-β-hydroquinonylethylamino)-5,8-dihydroxyanthraquinone with N-
It was dissolved in a mixed solvent of n-butylacetanilide and 4-methylcyclohexanone, emulsified and dispersed in an aqueous gelatin solution containing dispersant Alkanol B, and applied.

The coating amount was 4,29 gelatin/rrl cyan dye developer 2.0 fl/m''.

(2) Red-sensitive emulsion layer For red-sensitivity, silver iodobromide emulsion is mixed with silver 0.6 g/m and gelatin 2.
,4,! It was coated so that it was li'/m.

(3) Middle class Gelatin 2. og/m".

(4) Magenta dye developer layer 2-(P-(β-hydroquinonylethyl)phenylazo)-4-n-propoxy-1-naphthol is dissolved in a mixed solvent of N-n-butylacetanilide and 4-methylcyclohexanone. , emulsified and dispersed in an aqueous gelatin solution containing dispersant Alkanol B, and applied.

The coating amounts were 2.8 g/m" of gelatin and 1.3 f!/m" of agenta dye developer.

(5) For the green feel, the emulsion layer contains green-sensitive silver iodobromide of 1.2 g/m of silver and 1.2 g/m of gelatin.
It was applied at a concentration of 2 g/rrt.

(6) Middle class The gelatin was coated at a concentration of 1.5 & /rrl.

(7) Yellow dye developer layer 1-phenyl-3-N-n-hexylcarboxamide-4-[:'(P-2',5'-dihydroxyphenethyl)phenylazoyo 5-pyrasolone with N,N
- It was dissolved in a mixed solvent of diethyl laurylamide and ethyl acetate, emulsified and dispersed in an aqueous gelatin solution containing dispersant Alkanol B, and applied.

The coating amount is gelatin], ]J'/m2, yellow dye developer 0, 5 fl/rrl: bound.

(8) Blue-sensitive emulsion layer containing blue-sensitive silver iodobromide at 0.6 g/m'' of silver and 0.6 g of gelatin.
/m”.

(9) Protective layer 4'-Methylphenylhydroquinone was dissolved in N,N-diethyl laurylamide, emulsified and dispersed in gelatin aqueous solution, and 2-polymucochloric acid aqueous solution 5
After adding ml, it was applied.

The amount applied is 4'-methylphenylhydroquinone 0,5
g/rn” and gelatin 0.69/m”.

The alkaline injection treatment composition was prepared as follows.

Water 100m Potassium hydroxide 11.2.9 Carboxymethyl cellulose 5g Benzotriazole
7.0 g N-phenethyl-α-picolinium bromide 2.0 g Benzyl aminopurine 0.12 g titanium dioxide 50.9 A processing bag consisting of the above processing composition was used with the above photosensitive element and (
It was placed between image receiving elements made of A) to (Gl) and developed using a roller pressure tool.

After placing the resulting photographic elements at 25° C. and 60% relative humidity for 7 days, red, green, and blue filters were used to determine the maximum density of each dye image (cyan (C), magenta M, and yellow (7)). Table 4 shows the results obtained by measuring the minimum dust production (Dmin).

Image distortion was observed in image-receiving elements (A) and (B), but such distortion was not observed in image-receiving elements (C) to (Q), and Dmax was high and Dmin was low.

Example 4 A photosensitive element was prepared by sequentially coating the following layers on a gelatin-subbed acetylcellulose film base.

(1) Green-sensitive silver bromide, silver 1.0 g/m, gelatin 2
．． 69/m” and magenta dye diffusion as a coupler, ■-phenyl-3-(3,5-disulfobenzamide)-4-(6-hydroxy-4-bentate'silphenyrazo)-5-pyrazolone potassium neutral salt 0 .8 g/
m was applied.

(2) Gelatin 2, coated at Og/rn''.

Each neutralization layer (4), (C), (D, (
F), (Gl) was used to prepare an image receiving element by sequentially applying the following layers on top of this layer.

(1) Light reflective layer titanium dioxide 30 g/m", gelatin 3 g/r
It was applied so that it became rr'.

(2) Image-receiving layer gelatin 59/m% octadecyltributylammonium bromide 2 f! / rrr'.

(3) Protective layer The gelatin was coated at a thickness of 0.69/m''.

The following alkali treatment composition was prepared and placed in a treatment bag.

4-Amino-N-ethyl-N-β-hydroxyethylaniline hydrochloride 3g Hydroxyethylcellulose 3.29 Hyhelidinohexose reductone 0.08p Sodium hydroxide
A processing bag containing 3 g of the above acrylic processing composition was placed between the photosensitive element and the image receiving element, and after exposure with a wenge, development processing was carried out using a roller pressure tool.

After 3 minutes, the photosensitive element and image receiving element are separated, and the image receiving element is
Dmax and Dm i
n was measured and the results are shown in Table 5.

From the results in Table 5, the image receiving element containing the compound of the present invention (
It can be seen that (F) and (G) have high Dmax and low Dmin.

Furthermore, image glare was seen on the image receiving element (4);
Image receiving elements (C), (E), (
No image distortion was observed in F) and (■).

Example 5 Samples (4) and (C) coated up to the timing layer of Example 1
), (D), (F), and (■), the following layers were sequentially coated on this layer to prepare a photosensitive element.

(1) Image-receiving layer poly(vinylbenzyltrimethylammonium: chloride 3 g/m", polyvinyl alcohol (Nippon Gohsenol NH-26) 6 g/rn'
I applied it to make it look like this.

(2) Light reflective layer titanium dioxide 209! m, gelatin 21! /m”.

(3) Opaque layer gelatin 2 f! / m” and carbon black 2
It was applied so that it was g/d.

(4) Yellow dye image-forming substance-containing layer The following compound was coated at 1.0 g/ra'.

(5) Blue-sensitive emulsion layer Blue-sensitive silver iodobromide: silver 0.6 g/m, gelatin 0.6
It was applied so that it became g/m.

(6) Protective layer The gelatin was coated at 0.5 g/m''.

The treated sheet used a transparent polyethylene terephthalate film base.

The following Alka IJ 11 treatment composition was prepared.

Hydroxyethylcellulose 2.5g Sodium hydroxide 6.0g 4-Hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone o, sg Potassium diiodide
1■5-Methylbenzotriazole
80■-Butylhydroquinone 8
0 ■ Sodium sulfate 0.2.
! i? Carbon black 4I water
1001rll
A processing bag containing the Alka IJ l=1 processing composition was placed between the photosensitive element and the cover sheet, and after exposure with a wedge, development was carried out using a roller pressing tool.

The obtained photographic element was placed in a temperature chamber at 50 DEG C. and a relative humidity of 80° C. for 3 days, after which Dmax and Dmin were measured, and the results are shown in Table 6.

Image receiving elements (C), (2), (
It can be seen that F) and Dmax are higher and Dmin is lower than the control.

Furthermore, distortion was observed in the images obtained in the control, but the image receiving elements (C), (1)), (F) and (G)
There was no such thing.

Furthermore, similar results were obtained even when the timing layer did not contain the compound of the present invention.

Example 6 Image-receiving element (B) with only a neutralizing layer coated in Example 1, (
The timing layer of the image-receiving element (B) of Example 1 was coated on Q, and the layers (4) to (6) of Example 5 were coated, respectively, and this was used as a photosensitive element.

As an image receiving element, 2 g of poly(vinylbenzyltrimethylammonium) chloride was deposited on a 100 μm thick transparent film base made of polyethylene terephthalate.
ms polyvinyl alcohol coated at 4 g/rri' was used.

The same treatment as in Example 5 was used and the results are shown in Table 7.

The image receiving element (q) containing the compound of the present invention showed an increase in Dmax and a decrease in Dmin compared to the control.

Example 7 Layers (1) to (6) of Example 5 were coated on a transparent film base made of polyethylene terephthalate with a thickness of 100 μm, and as a treated sheet, an image receiving element (4) coated up to the timing layer of Example 1 was prepared. ), (C), 0, and (F) using the same processing agent as in Example 5.

The results are shown in Table-8.

Receiving elements (C), (D) and (F) containing compounds of the invention showed an increase in Dmax and Dm compared to the control.
A decrease in in was observed.

Further, similar effects were obtained even when the compound of the present invention was not added to the timing layer.

Claims (1)

[Claims] 1. After applying the alkaline treatment composition, it has a neutralizing layer for lowering the pH in the system or a timing layer for controlling the decrease in pH, and the neutralizing layer or the timing layer A photographic material for diffusion transfer, characterized in that it contains a compound represented by the following general formula. General formula % Formula % (In the formula, R1, R2, R3 are a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group which may have a substituent having 1 to 4 carbon atoms, a phenyl group which may have a substituent) group, -0R4 or -0COR4, R4 is an alkyl group which may have a substituent having 1 to 4 carbon atoms, A is a vinyl group or an alkyl group which may have a substituent having 1 to 4 carbon atoms )