JP2879620B2 - Diffusion transfer type color photosensitive material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diffusion transfer type color photographic material, and more particularly to a diffusion transfer type color photographic material excellent in color separation and image discrimination. The present invention further relates to a diffusion transfer type color photosensitive material having excellent raw preservability. The term "photosensitive material having excellent raw storability" as used herein means a photographic material whose photographic performance does not fluctuate greatly even when the photographic material is stored for a long period of several months or more.

[0002]

2. Description of the Related Art A photographic method using silver halide has been used most widely in the past because it has superior photographic characteristics such as sensitivity and gradation control as compared with other photographic methods, for example, electrophotography and diazo photography. Have been. In particular, since the best image quality can be obtained as a color hard copy, it has been energetically studied more recently. Recently, with the progress of office automation, commercial imaging equipment, electronic still cameras, video, facsimile, and the like have become widespread, and accordingly, the need for graphics has increased. In particular, with the development of computer graphics and the development of image sensor technology and digital processing technology, there is an increasing demand for obtaining a color hard copy from image information once converted into an electric signal. Conventional color light-sensitive materials are usually blue,
A color CRT (cathode ray tube) has green and red spectral sensitivities, and obtains an image using image information once converted into an electrical signal on such a color photosensitive material.
Is generally used as an exposure light source, but a CRT is not suitable for obtaining a large-sized print. Further, light emitting diodes (LEDs) and semiconductor lasers have been developed as write heads capable of obtaining large-sized prints. However, those optical writing heads that efficiently emit blue light have not been developed. Thus, for example, when using light emitting diodes (LEDs), the near infrared (800 nm), red (670 nm), and yellow (570)
nm), it is necessary to expose a color light-sensitive material having three layers spectrally sensitized to near-infrared light, red light, and yellow light with a light source that combines three light-emitting diodes. A system for performing the method is described in “Nikkei New Material”, Sep. 14, 1987, pp. 47-57, and is partially used. 880 nm,
Japanese Patent Application Laid-Open No. 61-137149 describes a system for recording on a color photosensitive material having three photosensitive layers having a spectral sensitivity at each wavelength with a light source combining three semiconductor lasers emitting at 820 nm and 760 nm. .

Due to the need for color hard copy as described above, in recent years, an image forming method for a light-sensitive material using silver halide has been changed from a conventional wet process to an install photograph system incorporating a developing solution, and A system has been developed which can obtain an image simply and quickly by a dry thermal development process by heating or the like. In the above simple and rapid processing method, a method of forming an image by a diffusion transfer method is often employed in order to prevent image contamination due to printout of silver halide after image formation. The diffusion transfer method is a method in which a diffusible dye is formed or released in the form of an image, and the diffusible dye is transferred to an image receiving material having a mordant by a solvent such as water.
em.Int.Ed.Engl.22 (1983) 191. The present inventors have been studying the diffusion transfer type color photosensitive material, but it has become necessary to design a color photosensitive material corresponding to the above-described writing head (semiconductor laser, LED).

In designing the color photosensitive material as described above, since the spectral distribution of the wavelength of the light source mainly belongs to the infrared region of 600 nm or more, and three color light sources must be selected within a narrow wavelength range, the halogen light source must be selected. It is very difficult to design the spectral sensitivity of silver halide. In such a case, in the art, a method of separating spectral sensitivity, that is, sharpening spectral sensitivity using a filter dye is generally performed. Known techniques for this method include, for example, U.S. Pat.
As described in US Pat. No. 619,892, there is known a technique of increasing the short-wave side sensitivity among two spectral sensitivities and introducing a filter layer.

[0005]

The present inventors have also studied a method using the above filter dye. However, dyes used in color papers and the like in this field are water-soluble because they need to be decolorized during processing, and when used in a diffusion transfer type color photosensitive material, they are transferred to an image receiving material. Can not. Therefore, oil-soluble ballast was introduced into the filter dye, and oil protection emulsification and dispersion of fine particles in a solid state were attempted. However, it was found that if even a small amount of the filter dye was soluble in water, it would diffuse into other layers, failing to achieve the intended color separation, or causing undesired photographic effects when adsorbed on silver halide. . SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a diffusion transfer type color light-sensitive material excellent in color separation and image discrimination. Another object of the present invention is to provide a diffusion transfer type color photosensitive material having excellent raw preservability.

An object of the present invention is a diffusion transfer type color light-sensitive material used in an image forming method in which development and diffusion transfer of a dye are carried out in the presence of water, wherein at least a photosensitive silver halide, a binder, A non-diffusible dye-donor compound which releases or forms a diffusible dye in response to or inversely corresponding to the reaction by which silver halide is reduced to silver, and I
This is achieved by a diffusion transfer type color light-sensitive material characterized by having a filter dye having an / O value of 1 or less.

Hereinafter, the present invention will be described in detail.

As the filter dye used in the present invention, any dye having a dye portion known in the art can be used. However, as the dye used in the present invention, a dye having an oil-soluble residue (hereinafter referred to as ballast) is used because it is necessary to prevent transfer to an image receiving material during processing. Such dyes include, for example, the theory of the photographic process (4t
h. Ed. T. H. Edited by James Macmilla
n, 1977) pages 194 to 334, and dyes using azomethine, indoaniline, indophenol, azine, amidrazone, azo dyes, and the like described on pages 335 to 335, and the like. Can be used. In particular, as mentioned above, the IR
When a filter dye is used for color separation of an area, a dye having a λmax of 700 nm or more is selected from these dyes. Such as, for example,
As the infrared dye, dyes described in Functional Materials, June 1990, pp. 64 to, and the like can be used. In particular, in the present invention, a filter dye having an I / O value of 1 or less, preferably 0.5 or less is selected. When calculating the I / O value here, in the case of a salt-formed compound, the calculation is performed including the counter ion. The I / O value is described in detail in “Organic Conceptual Diagram” (Sankyo Publishing). Hereinafter, specific examples of preferred filter dyes in the present invention are shown,
The dyes that can be used in the present invention are not limited to these, of course.

[0009]

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[0010]

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[0011]

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[0012]

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The above filter dye can be synthesized using a known method. For example, for example
J. Chem. Soc., 189 (1933) and U.S. Pat.
No. 5,955. In the case of the present invention, the above filter dye may be used by emulsifying and dispersing it together with the dye-providing compound or alone, or may be dispersed in fine particles in a solid state. The emulsification and dispersion method is a technique known in the art, and a known method such as the method described in US Pat. No. 2,322,027 can be used as the method. As for the fine particle dispersion method, JP-A-63-271339 and JP-A-61-20943,
No. 59-174830, US Pat. No. 4,514,493
The method described in the item can be used.

Further, as the layer to which the emulsion or dispersion of the filter dye is added, a silver halide emulsion layer, a coloring material layer, an intermediate layer, a protective layer and the like can be selected. It is preferred to add the silver halide emulsion layer by co-emulsifying with the substance. There are two reasons. 1
One is that co-emulsification of the filter dye with the dye-donating compound prevents dye association. The other is that the sharpness is improved by the irradiation prevention effect of the filter dye. The latter effect is particularly remarkable in the case of a false color light-sensitive material.
The higher the extinction coefficient (ε) of the filter dye, the better.
The amount of addition can be selected widely, but in the case of a dye having a molar extinction coefficient (ε) of 10,000 to 500,000, 0.1 mg to 10 g, preferably 5 mg to 10 g per m ² is used.
500 mg.

The color light-sensitive material of the present invention basically comprises a support having thereon a photosensitive silver halide, a dye-providing compound (which may also serve as a reducing agent as described later), and a binder. Further, an organic metal salt oxidizing agent and the like can be contained as needed. These components are often added to the same layer, but they can be added separately in separate layers if they can react. For example, if a coloring dye-providing compound is present in the lower layer of the silver halide emulsion, the sensitivity can be prevented from lowering. The reducing agent is preferably incorporated in the photosensitive material, but may be supplied from the outside by, for example, a method of diffusing from a dye fixing material described later. In order to obtain a wide range of colors on the chromaticity diagram using the three primary colors of yellow, magenta and cyan, at least three silver halide emulsion layers having photosensitivity in different spectral regions are used in combination. For example, there are three layers of a blue sensitive layer, a green sensitive layer, and a red sensitive layer, and a combination of a green sensitive layer, a red sensitive layer, and an infrared sensitive layer. Each photosensitive layer can adopt various arrangement orders known for ordinary color photosensitive materials. Each of these photosensitive layers may be divided into two or more layers as necessary.

The light-sensitive material can be provided with various auxiliary layers such as a protective layer, an undercoat layer, an intermediate layer, an antihalation layer, and a back layer. Further, in the present invention, at least one layer containing a co-emulsion of a filter dye and a dye-providing compound is provided, for the following reason. For example, 750 nm on layer A spectrally sensitized to 810 nm
When the layer B which has been spectrally sensitized is provided, when the layer B is exposed to light of 750 nm from the layer B side, the color of the layer A is mixed in a highly exposed part, that is, a part with much light, and the color separation becomes insufficient. In particular, this tendency becomes remarkable when the sensitivity of the layer A spectrally sensitized to 810 nm is high. So, in layer A or in layer A
A dye having a maximum absorption wavelength (λmax) at a position which is shorter than the spectral sensitization peak of layer A and can absorb light emitted from a light source used for exposure of layer B in a layer between layer A and layer B. By doing so, the spectrally sensitized portion on the short-wave side of the layer A is cut to improve color separation.

The silver halide which can be used in the present invention may be any of silver chloride, silver bromide, silver iodobromide, silver chlorobromide, silver chloroiodide and silver chloroiodobromide. The silver halide emulsion used in the present invention may be a surface latent image type emulsion or an internal latent image type emulsion. The internal latent image type emulsion is used as a direct reversal emulsion in combination with a nucleating agent or light fogging. Further, a so-called core-shell emulsion having a different phase between the inside of the grain and the grain surface layer may be used. The silver halide emulsion may be monodispersed or polydispersed, or a mixture of monodispersed emulsions may be used. The particle size is preferably from 0.1 to 2 µ, particularly preferably from 0.2 to 1.5 µ. The crystal habit of silver halide grains is cubic, octahedral, 14
It may be in the form of a face, a flat plate having a high aspect ratio, or the like. Specifically, US Pat. No. 4,500,626 No. 5
Column 4, No. 4,628,021, Research Disclosure Magazine (hereinafter abbreviated as RD) 17029 (19)
1978) and any of the silver halide emulsions described in JP-A-62-253159 can be used. The silver halide emulsion may be used as it is after unripe, but usually it is used after chemical sensitization. A known sulfur sensitization method, reduction sensitization method, noble metal sensitization method, or the like can be used alone or in combination for an emulsion for a normal photosensitive material. These chemical sensitizations can be carried out in the presence of a nitrogen-containing heterocyclic compound (Japanese Patent Application Laid-Open No.
2-253159). The coating amount of the photosensitive silver halide used in the present invention is 1 mg to 10 g / silver equivalent.
m ² .

When the present invention is used in a heat development system, an organic metal salt can be used together with a photosensitive silver halide as an oxidizing agent in the photosensitive element. Among such organic metal salts, an organic silver salt is particularly preferably used. Organic compounds that can be used to form the above-mentioned organic silver salt oxidizing agent include benzotriazoles, fatty acids and other compounds described in U.S. Pat. No. 4,500,626, columns 52-53. Also useful are silver salts of carboxylic acids having an alkynyl group such as silver phenylpropiolate described in JP-A-60-113235 and acetylene silver described in JP-A-61-249044. Two or more organic silver salts may be used in combination. The above organic silver salt is used in an amount of 0.01 to 10 mol, preferably 0.0 to 10 mol, per 1 mol of the photosensitive silver halide.
One to one mole can be used in combination. The total coating amount of the photosensitive silver halide and the organic silver salt is suitably from 50 mg to 10 g / m ² in terms of silver.

In the present invention, various antifoggants or photographic stabilizers can be used. Examples thereof include azoles and azaindenes described in RD17643 (1978), pp. 24-25, and JP-A-59-1684.
No. 42 nitrogen-containing carboxylic acids and phosphoric acids,
Alternatively, a mercapto compound and a metal salt thereof described in JP-A-59-111636, an acetylene compound described in JP-A-62-87957, and the like are used.

The silver halide used in the present invention may be spectrally sensitized with a methine dye or the like. Dyes used include cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes, and hemioxonol dyes. Specifically, U.S. Pat. No. 4,617,257, and JP-A-59-180550.
No. 60-140335, RD17029 (197
8 years), sensitizing dyes described on pages 12 to 13 and the like.
These sensitizing dyes may be used alone or in combination, and the combination of sensitizing dyes is often used particularly for supersensitization. Along with the sensitizing dye, a dye which has no spectral sensitizing effect or a compound which does not substantially absorb visible light and exhibits supersensitization may be contained in the emulsion (for example, US Pat. , 615, 641, and Japanese Patent Application No. 61-226294). These sensitizing dyes may be added to the emulsion at or before or after chemical ripening, or according to U.S. Pat. Nos. 4,183,756 and 4,225,666 before and after nucleation of silver halide grains. Good. The addition amount is generally from 10 ^-8 to 10 ^-2 per mol of silver halide.
It is about a mole.

As the binder for the constituent layers of the photosensitive element and the dye fixing element, hydrophilic binders are preferably used. Examples thereof include pages (26) to (2) of JP-A-62-253159.
8) Those described on page 8 are mentioned. Specifically, transparent or translucent hydrophilic binders are preferred, for example, gelatin, proteins or cellulose derivatives such as gelatin derivatives, starch, gum arabic, dextran, natural compounds such as polysaccharides such as pullulan, polyvinyl alcohol, Examples include polyvinylpyrrolidone, acrylamide polymers, and other synthetic polymer compounds. Furthermore, superabsorbent polymers described in JP-A-62-245260, i.e. -COOM or _-SO 3 M (M is a hydrogen atom or an alkali metal) homopolymer or a vinyl monomer together or with other vinyl monomers with (For example, sodium methacrylate, ammonium methacrylate, Sumikagel L-5H manufactured by Sumitomo Chemical Co., Ltd.) may also be used. These binders can be used in combination of two or more kinds. When a system for performing thermal development by supplying a small amount of water is used, it is possible to quickly absorb water by using the above superabsorbent polymer. Further, when the superabsorbent polymer is used for the dye fixing layer and its protective layer, it is possible to prevent the dye from being re-transferred from the dye fixing element to another after transfer. In the present invention, the coating amount of the binder is 1 m.
^It is preferably 20 g or less, more preferably 10 g or less, and even more preferably 7 g or less.

The constituent layers (including the back layer) of the light-sensitive element or the dye-fixing element are used for the purpose of improving film physical properties such as dimensional stability, curling prevention, adhesion prevention, film crack prevention, and pressure increase / decrease sensation. Various polymer latexes can be included. Specifically, any of the polymer latexes described in JP-A Nos. 62-245258, 62-136648, and 62-110066 can be used. In particular,
When a polymer latex having a low glass transition point (40 ° C. or less) is used for the mordant layer, cracking of the mordant layer can be prevented, and when a polymer latex having a high glass transition point is used for the back layer, an effect of preventing curling can be obtained. Can be

As the reducing agent used in the present invention, those known in the field of photosensitive materials can be used. Further, a dye-providing compound having a reducing property described later is also included (in this case, another reducing agent may be used in combination). Further, a reducing agent precursor which does not itself have a reducing property but expresses a reducing property by the action of a nucleophilic reagent or heat during the development process can be used. Examples of the reducing agent used in the present invention include columns 49 to 50 of U.S. Pat. No. 4,500,626 and Nos. 30 to 50 of U.S. Pat. No. 4,483,914.
Column 31, No. 4,330,617, No. 4,590,
No. 152, JP-A-60-140335, Nos. (17) to (18)
Pp. 57-40245, 56-138736,
Nos. 59-178458, 59-53831, 5
Nos. 9-182449, 59-182450, 60
-119555, 60-128436 to 60
-128439, 60-198540, 6
Nos. 0-181742, 61-259253, 62
No. 244,044, No. 62-131253 to No. 62
EP-131256, EP 220,746 A2
No. 78-96 and the like. Various combinations of reducing agents, such as those disclosed in U.S. Pat. No. 3,039,869, can also be used. When a diffusion-resistant reducing agent is used, an electron transfer agent and / or an electron transfer agent may be added as necessary to promote electron transfer between the diffusion-resistant reducing agent and the developable silver halide.
Alternatively, an electron transfer agent precursor can be used in combination. The electron transfer agent or its precursor can be selected from the above-mentioned reducing agents or its precursors. It is desirable that the mobility of the electron transfer agent or its precursor is higher than that of the diffusion-resistant reducing agent (electron donor). Particularly useful electron transfer agents are 1-phenyl-3-pyrazolidones or aminophenols. An electron transfer agent is a compound that easily diffuses and moves. Therefore, the present invention has an extremely large effect particularly in preventing coloring due to the transfer of the electron transfer agent to the dye fixing element. The diffusion-resistant reducing agent (electron donor) used in combination with the electron transfer agent may be any one that does not substantially move in the layer of the photosensitive element among the reducing agents described above, and is preferably a hydroquinone, Examples thereof include sulfonamidophenols, sulfonamidophenols, compounds described as electron donors in JP-A-53-110827, and non-diffusive and reducing dye-providing compounds described later. In the present invention, the reducing agent is added in an amount of 0.0
The amount is from 01 to 20 mol, particularly preferably from 0.01 to 10 mol.

In the present invention, a compound which produces or releases a movable dye corresponding to or opposite to the exposure dose, that is, a dye-donating compound is used. First, examples of the dye-donating compound that can be used in the present invention include a compound (coupler) that forms a dye by an oxidative coupling reaction. The coupler may be a 4-equivalent coupler or a 2-equivalent coupler. Further, a 2-equivalent coupler which has a diffusion-resistant group as a leaving group and forms a diffusible dye by an oxidative coupling reaction is also preferable. The diffusion resistant group may form a polymer chain. Examples of color developers and couplers are described in James, The Theory of the Photographic Process, 4th Edition (TH
James "The Theory of the Photographic Process") 2
Pages 91 to 334, and pages 354 to 361,
-123533, 58-149046, 58-
No. 149047, No. 59-111148, No. 59-1
No. 24399, No. 59-174835, No. 59-23
No. 1539, No. 59-231540, No. 60-295
Nos. 0, 60-2951, 60-14242, 60-23474, and 60-66249.

As another example of the dye-donating compound, a compound having a function of releasing or diffusing a diffusible dye imagewise can be mentioned. This type of compound can be represented by the following general formula [L1]. (Dye-Y) _n -Z [L1] Dye represents a dye group, generally a shortened dye group or dye precursor group, Y represents a simple bond or linking group, and Z represents a latent image in an image form. (Dye-Y) _n -Z corresponding to or opposite to a photosensitive silver salt having the formula (I), or Dye is released, and the released Dye and (Dye- Y) represents a group having a property that causes a difference in diffusivity with _n- Z, and _n represents 1 or 2, and when n is 2, two Dye-Ys are the same but different. Is also good.

Specific examples of the dye-donating compound represented by the general formula [L1] include the following compounds. The following (1) to (4) are to form a diffusible dye image (positive dye image) in reverse correspondence to the development of silver halide, and "(1)" is to form a diffusible dye image (positive dye image) in (A negative dye image).
U.S. Pat. Nos. 3,134,764 and 3,362
No. 819, No. 3,597,200, No. 3,54
No. 4,545, No. 3,482,972, etc., a dye developer in which a hydroquinone-based developer and a dye component are linked. This dye developer is diffusible in an alkaline environment, but becomes non-diffusible when reacted with silver halide. As described in U.S. Pat. No. 4,503,137, non-diffusible compounds which release a diffusible dye in an alkaline environment but lose their ability when reacted with silver halide can also be used. Examples thereof include compounds which release a diffusible dye by an intramolecular nucleophilic substitution reaction described in US Pat. No. 3,980,479, and isoxazolone described in US Pat. No. 4,199,354. Compounds that release a diffusible dye by an intramolecular ring rewinding reaction are included. U.S. Pat. No. 4,559,29
0, European Patent No. 220,746A2, Published Technical Report 87
As described in -6199 and the like, a non-diffusible compound which reacts with a reducing agent remaining without being oxidized by development to release a diffusible dye can also be used. Examples include U.S. Pat. Nos. 4,139,389 and 4,139,379.
And JP-A-59-185333 and 57-84453.
No. 4,232,107, compounds disclosed in JP-A-59-101649, which release a diffusible dye by a nucleophilic substitution reaction in the molecule after reduction.
No. 61-88257, RD24025 (1984)
Compounds which release a diffusible dye by an intramolecular electron transfer reaction after reduction, as described in West German Patent No. 3,0
08,588A, JP-A-56-142530, U.S. Pat. Nos. 4,343,893 and 4,619,884.
No. 4,450,2, which discloses a compound capable of cleaving a single bond after reduction to release a diffusible dye.
For example, a nitro compound which releases a diffusible dye after electron acceptance described in No. 23, etc., and a compound which releases a diffusible dye after electron acceptance described in U.S. Pat. No. 4,609,610 and the like can be mentioned. Further, as more preferable, European Patent No. 220,746A2 and Published Technical Report 87-
No. 6199, Japanese Patent Application No. 62-34953, No. 62-34
Compounds having an NX bond (X represents an oxygen, sulfur or nitrogen atom) and an electron-withdrawing group in one molecule described in, for example, Japanese Patent Application No. Sho 62-106885. A compound having an SO ₂ -X (X is as defined above) and an electron-withdrawing group, and a PO-X bond (X is as defined above) and an electron-withdrawing in one molecule described in Japanese Patent Application No. 62-106895. compounds having sex group, C-X 'bond (X' is X as defined either or -SO ₂ - represents a) in one molecule described in Japanese Patent Application Sho 62-106887 and compound having an electron withdrawing group Is mentioned. Among them, a compound having an NX bond and an electron-withdrawing group in one molecule is particularly preferable. Specific examples thereof include compounds (1) described in European Patent No. 220,746A2.
~ (3), (7) ~ (10), (12), (13), (15), (23) ~ (26),
(31), (32), (35), (36), (40), (41), (44), (53)-(5
9), (64), (70), and the compound (1
1) to (23). A compound (DDR coupler) which is a coupler having a diffusible dye as a leaving group and which releases a diffusible dye by reacting with an oxidized form of a reducing agent. In particular,
British Patent No. 1,330,524, JP-B-48-39,
No. 165, U.S. Pat.
Nos. 474,867 and 4,483,914. A compound (DRR compound) that is reducible to silver halide or an organic silver salt and releases a diffusible dye when the partner is reduced. Since this compound does not need to use another reducing agent, it is preferable because there is no problem of image contamination due to oxidized decomposition products of the reducing agent. Representative examples are U.S. Pat. Nos. 3,928,312 and 4,052.
No. 3,312, No. 4,055,428, No. 4,3
36,322, JP-A-59-65839 and JP-A-59-65839.
Nos. 69839, 53-3819, 51-104,
No. 343, RD17465, U.S. Pat.
No. 062, No. 3,728,113, No. 3,44
3,939, JP-A-58-116,537 and 57
No. 179840 and U.S. Pat. No. 4,500,626. Specific examples of the DRR compound include columns 22 to 44 of the aforementioned U.S. Pat. No. 4,500,626.
Column, among which compounds (1) to (3), (10) to (13), (1)
6)-(19), (28)-(30), (33)-(35), (38)-(40), (42)
To (64) are preferred. U.S. Pat. No. 4,639,408
No. 37-39 are also useful.

Other examples of the above-mentioned couplers and dye-donating compounds other than the general formula [L1] include dye silver compounds in which an organic silver salt is combined with a dye (Research Disclosure, May 1978, 54-58). Azo dyes used in the heat-developed silver dye bleaching method, such as pages (U.S. Pat.
5,957, Research Disclosure Magazine, 19
April, 76, pp. 30-32), leuco dyes (U.S. Pat. Nos. 3,985,565, 4,022,617, etc.) and the like can also be used.

[0028] Hydrophobic additives such as a dye-donating compound and a diffusion-resistant reducing agent can be introduced into a layer of a photosensitive element by a known method such as the method described in US Patent No. 2,322,027. In this case, Japanese Patent Application Laid-Open No. 59-83154
Nos. 59-178451 and 59-178452
Nos. 59-178453 and 59-178454
And high-boiling organic solvents described in JP-A-59-178455, JP-A-59-178457, and the like, if necessary, in combination with a low-boiling organic solvent having a boiling point of 50 ° C to 160 ° C. The amount of the high boiling point organic solvent is 10 g or less, preferably 5 g per 1 g of the dye-donating compound used.
It is as follows. Further, 1 cc or less, more preferably 0.5 cc or less, especially 0.3 cc or less is suitable for 1 g of the binder. A dispersion method using a polymer described in JP-B-51-39853 and JP-A-51-59943 can also be used. In the case of a compound which is substantially insoluble in water, it can be dispersed and contained as fine particles in a binder in addition to the above method.
When dispersing the hydrophobic compound in the hydrophilic colloid, various surfactants can be used. For example, JP-A-59
The surfactants listed on pages (37) to (38) of 157636 can be used.

In the present invention, a compound capable of activating development and simultaneously stabilizing an image can be used in the photosensitive element. Specific compounds preferably used are described in U.S. Pat. No. 4,500,626, columns 51 to 52.

When an image is formed by diffusion transfer of a dye as in the present invention, a dye fixing element is used in combination with a photosensitive element. The dye-fixing element may be coated on a support separate from the photosensitive element, or may be coated on the same support as the photosensitive element. The relationship between the photosensitive element and the dye-fixing element, the relationship with the support, and the relationship with the dye reflection layer are described in U.S. Pat. No. 4,500,626.
The relationship described in column 57 of the issue also applies to this application. The dye fixing element preferably used in the present invention has at least one layer containing a mordant and a binder. As the mordant, those known in the field of photography can be used, and specific examples thereof include U.S. Pat. No. 4,500,626, columns 58 to 59 and JP-A-61-88256, pages (32) to (41). Mordants described in JP-A Nos. 62-244043 and 62-24
No. 4036 and the like. Alternatively, a dye-receiving polymer compound described in U.S. Pat. No. 4,463,079 may be used. The dye-fixing element may be provided with an auxiliary layer such as a protective layer, a release layer, an anti-curl layer, and an undercoat layer, if necessary. It is particularly useful to provide a protective layer.

In the constituent layers of the photosensitive element and the dye-fixing element, a plasticizer, a slipping agent, or a high-boiling organic solvent can be used as an agent for improving the releasability of the photosensitive element and the dye-fixing element. Specifically, JP-A-62-253159 (25)
Page, pp. 62-245253, and the like. Further, for the above purpose, various silicone oils (all silicone oils from dimethyl silicone oil to modified silicone oil obtained by introducing various organic groups into dimethyl siloxane) can be used. Examples thereof include various modified silicone oils, particularly carboxy-modified silicones (trade name X-2) described in “Modified Silicone Oil” Technical Documents P1 to 18B issued by Shin-Etsu Silicone Co., Ltd.
2-33710) is effective. Further, Japanese Patent Application Laid-Open No. Sho 62-2
Silicone oils described in Japanese Patent Application No. 15953 and Japanese Patent Application No. 62-23687 are also effective.

An anti-fading agent may be used in the light-sensitive element and the dye-fixing element. Anti-fading agents include, for example, antioxidants, ultraviolet absorbers, or certain metal complexes.
Examples of the antioxidant include chroman compounds, coumaran compounds, phenol compounds (eg, hindered phenols), hydroquinone derivatives, hindered amine derivatives, and spiroindane compounds. The compounds described in JP-A-61-159644 are also effective. Examples of ultraviolet absorbers include benzotriazole-based compounds (such as U.S. Pat. No. 3,533,794), 4-thiazolidone-based compounds (such as U.S. Pat. No. 3,352,681),
Benzophenone compounds (JP-A-46-2784, etc.), and JP-A-54-48535, 62-13
Nos. 6641 and 61-88256. Further, ultraviolet absorbing polymers described in JP-A-62-260152 are also effective. Examples of metal complexes include U.S. Pat. Nos. 4,241,155 and 4,245,018.
No. 3-36, No. 4,254,195 No. 3-8
Column, JP-A-62-174741, JP-A-61-88256.
Nos. (27)-(29), Japanese Patent Application No. 62-234103
No. 62-31096, Japanese Patent Application No. 62-230596
And the like. Examples of useful anti-fading agents are described in JP-A-62-215272 (125) to (13).
7) It is described on page. An anti-fading agent for preventing fading of the dye transferred to the dye-fixing element may be contained in the dye-fixing element in advance, or may be supplied to the dye-fixing element from the outside such as a photosensitive element. . The above antioxidants, ultraviolet absorbers, and metal complexes may be used in combination with each other.

A fluorescent whitening agent may be used in the photosensitive element and the dye fixing element. In particular, it is preferable to incorporate a fluorescent whitening agent into the dye-fixing element or to supply it from outside such as a photosensitive element. For example, K. Veenkataraman ed., "The Chemis
try of Synthetic Dyes ", Volume V, Chapter 8, JP-A-61-
No. 143752 and the like. More specifically, a stilbene compound, a coumarin compound, a biphenyl compound, a benzoxazolyl compound, a naphthalimide compound, a pyrazoline compound, a carbostyril compound, and the like can be given. The fluorescent whitening agent can be used in combination with an anti-fading agent.

US Pat. No. 4,678,739 No. 4 discloses a hardening agent used in a constituent layer of a photosensitive element or a dye fixing element.
Column 1, JP-A-59-116655, JP-A-62-2452
No. 61, No. 61-18942 and the like. More specifically, aldehyde hardeners (such as formaldehyde), aziridine hardeners, epoxy hardeners, and vinyl sulfone hardeners (N, N'-ethylene-
Bis (vinylsulfonylacetamide) ethane, etc., N
-Methylol-based hardeners (such as dimethylol urea) and polymer hardeners (compounds described in JP-A-62-234157).

In the constituent layers of the light-sensitive element and the dye-fixing element, various surfactants can be used for the purpose of coating aid, improving releasability, improving slipperiness, preventing static charge, and accelerating development. Specific examples of the surfactant are described in JP-A-62-173463.
And No. 62-183457. The constituent layers of the light-sensitive element and the dye-fixing element may contain an organic fluoro compound for the purpose of improving slipperiness, preventing static charge, and improving releasability. Representative examples of organic fluoro compounds include JP-B-57-9053, columns 8-17, and JP-A-61-20.
No. 944, No. 62-135826 or the like, or a hydrophobic fluorine compound such as an oily fluorine compound such as fluorine oil or a solid fluorine compound resin such as ethylene tetrafluoride resin. No.

A matting agent can be used for the photosensitive element and the dye fixing element. Examples of the matting agent include silicon dioxide, polyolefin and polymethacrylate.
In addition to the compounds described on page 1-88256 (page 29), benzoguanamine resin beads, polycarbonate resin beads, AS resin beads and the like are disclosed in Japanese Patent Application No. 62-110064.
Nos. 62-110065.

In addition, the constituent layers of the photosensitive element and the dye-fixing element may contain a heat solvent, an antifoaming agent, an antibacterial and antibacterial agent, colloidal silica, and the like. Specific examples of these additives are described in JP-A-61-88256, pages (26) to (32).

In the present invention, an image formation accelerator can be used in the light-sensitive element and / or the dye-fixing element.
Examples of the image formation accelerator include the promotion of a redox reaction between a silver salt oxidizing agent and a reducing agent, the promotion of a reaction such as the formation of a dye from a dye-providing substance or the decomposition of a dye or the release of a diffusible dye, and the use of a photosensitive element. It has the function of promoting the transfer of the dye to the dye fixing layer, and from the physicochemical function, a base or a base precursor, a nucleophilic compound, a high-boiling organic solvent (oil), a heat solvent, a surfactant, silver or It is classified into compounds that interact with silver ions. However, these substance groups generally have a composite function and usually have some of the above-mentioned promoting effects. Details of these are described in U.S. Pat. No. 4,678,739, columns 38-40. Examples of the base precursor include a salt of an organic acid and a base that are decarboxylated by heat, a compound that releases an amine by an intramolecular nucleophilic substitution reaction, Lossen rearrangement or Beckmann rearrangement, and the like. A specific example is described in U.S. Pat.
1,493, and JP-A-62-65038. And the salts with 2-carboxycarboxamide described in (1). Other UK Patent No. 998,945
No. 3,220,846, JP-A-50-2
No. 2625, etc. can be used. In a system in which thermal development and transfer of a dye are carried out simultaneously in the presence of a small amount of water, it is preferable to include a base and / or a base precursor in a dye-fixing element from the viewpoint of improving the storage stability of the photosensitive element. Further, U.S. Pat.
As described in JP-A No. 40,445, compounds capable of forming a complex with a metal ion constituting a poorly soluble metal salt compound (eg, zinc oxide, basic zinc carbonate, calcium carbonate, etc.) using water as a medium (eg, picoline) Guanidine acid) and the sparingly soluble metal salt compound to generate a water-soluble base. In this method, a dispersion of a hardly soluble metal salt compound is contained in a photosensitive element, and a water-soluble compound capable of forming a complex with the metal ion is contained in a dye-fixing element as a base precursor. Since a base can be generated during the heat treatment in close contact, it is particularly effective in terms of the storage stability of the photosensitive element and the dye-fixing element over time. In addition, JP-A-61-232451
Compounds that generate a base by electrolysis described in the above item can also be used as the base precursor.

The light-sensitive element and / or dye-fixing element of the present invention are provided with a processing temperature and a processing time fluctuation during development.
Various development stoppers can be used for the purpose of always obtaining a constant image. The term "development terminator" as used herein means that after appropriate development, the base is quickly neutralized or reacts with the base to reduce the base concentration in the film, and interact with a compound that stops development or silver and silver salts to suppress development. Compound. Specific examples include an acid precursor that releases an acid when heated, an electrophilic compound that causes a substitution reaction with a coexisting base when heated, or a nitrogen-containing heterocyclic compound, a mercapto compound, and a precursor thereof. For further details, see JP-A-62-253.
No. 159, pages 31 to 32.

As the support of the light-sensitive element and the dye-fixing element of the present invention, a support that can withstand the processing temperature is used. Generally, paper and synthetic polymers (films) are used. Specifically, polyethylene terephthalate, polycarbonate, polyvinyl chloride, polystyrene, polypropylene, polyimide, celluloses (eg, triacetylcellulose) or films containing pigments such as titanium oxide, and further from polypropion Film-made synthetic paper, mixed paper made from synthetic resin pulp such as polyethylene and natural pulp, Yankee paper, baryta paper, coated paper (especially cast-coated paper), cloth, etc. are used. They are,
It can be used alone or as a support laminated on one or both sides with a synthetic polymer such as polyethylene. In addition, Japanese Patent Application Laid-Open No. Sho 62-2531
No. 59 (29) to (31) can be used. On the surface of these supports, a hydrophilic binder and a semiconductive metal oxide such as alumina sol or tin oxide,
Carbon black or another antistatic agent may be applied.

As a method of exposing and recording an image on a photosensitive element, for example, a method of directly photographing a landscape or a person using a camera or the like, a method of exposing through a reversal film or a negative film using a printer or a enlarger, A method of scanning and exposing an original image through a slit or the like using an exposure device of a copying machine, a method of exposing image information by emitting light from a light emitting diode or various lasers via an electric signal, a method of exposing image information to a CRT, a liquid crystal display, There is a method of outputting an image to an image display device such as an electroluminescence display or a plasma display and exposing the image directly or via an optical system.

As a light source for recording an image on a photosensitive material,
As described above, light sources described in U.S. Pat. No. 4,500,626, column 56, such as natural light, tungsten lamps, light emitting diodes, laser light sources, and CRT light sources, can be used. Also, image exposure can be performed using a wavelength conversion element in which a non-linear optical material and a coherent light source such as laser light are combined. Here, the nonlinear optical material is
It is a material that can express nonlinearity between polarization and electric field that appears when a strong optical electric field such as laser light is given,
Lithium niobate, potassium dihydrogen phosphate (KDP),
Inorganic compounds typified by lithium iodate, BaB ₂ O _{4 and the} like, urea derivatives, nitroaniline derivatives such as 3
-Methyl-4-nitropyridine-N-oxide (PO
Nitropyridine-N-oxide derivatives such as M) and the compounds described in JP-A Nos. 61-53462 and 62-210432 are preferably used. As a form of the wavelength conversion element, a single crystal optical waveguide type, a fiber type and the like are known, and any of them is useful. The image information includes an image signal obtained from a video camera, an electronic still camera, a television signal represented by the Nippon Television Signal Standards (NTSC), and an image obtained by dividing an original image into a number of pixels such as a scanner. An image signal generated using a computer represented by a signal, CG, or CAD can be used.

The light-sensitive material and / or the dye-fixing element may have a form having a conductive heating element layer as a heating means for heat development or diffusion transfer of the dye. The transparent or opaque heating element in this case is described in JP-A-61-1.
No. 45544 can be used. Note that these conductive layers also function as antistatic layers. The heating temperature in the heat development step is about 50 ° C. to about 250 ° C., but development at about 80 ° C. to about 180 ° C. is particularly useful. The dye diffusion transfer step may be performed simultaneously with the heat development, or may be performed after the heat development step. In the latter case, the heating temperature in the transfer step can be transferred within the range from the temperature in the heat development step to room temperature, but is more preferably from 50 ° C. or higher to about 10 ° C. lower than the temperature in the heat development step. Dye transfer is caused only by heat, but a solvent may be used to promote dye transfer. Also, JP-A-59-21
As described in detail in JP-A Nos. 8443 and 61-238056, a method in which development and transfer are carried out simultaneously or continuously by heating in the presence of a small amount of a solvent (particularly water) is also useful. In this method, the heating temperature is preferably 50 ° C. or more and the boiling point of the solvent or less. For example, when the solvent is water, the temperature is 50 ° C. or more and 10 ° C. or less.
0 ° C. or less is desirable. Examples of the solvent used for promoting development and / or transferring the diffusible dye to the dye-fixing layer include water or a basic aqueous solution containing an inorganic alkali metal salt or an organic base (these bases include Those described in the section of the formation accelerator are used. In addition, a low-boiling solvent or a mixed solution of a low-boiling solvent and water or a basic aqueous solution can also be used. Further, a surfactant, an antifoggant, a sparingly soluble metal salt and a complex forming compound may be contained in the solvent. These solvents can be used in a method for imparting to the dye fixing element, the photosensitive material, or both. The amount used may be as small as not more than the weight of the solvent corresponding to the maximum swelling volume of the entire coating film (especially not more than the weight of the solvent corresponding to the maximum swelling volume of the entire coating film minus the weight of the entire coating film). As a method for imparting a solvent to the photosensitive layer or the dye fixing layer, for example, there is a method described in JP-A-61-147244, page 26. Further, the solvent can be used by being incorporated in advance in the light-sensitive material or the dye-fixing element or both in the form of enclosing the solvent in microcapsules. In order to promote dye transfer, a method in which a hydrophilic thermal solvent which is solid at normal temperature and dissolves at high temperature is incorporated in the photosensitive material or the dye fixing element can be adopted. The hydrophilic thermal solvent may be incorporated in either the photosensitive material or the dye fixing element, or may be incorporated in both. The layer to be incorporated may be any of an emulsion layer, an intermediate layer, a protective layer and a dye-fixing layer, but is preferably incorporated in the dye-fixing layer and / or an adjacent layer. Examples of hydrophilic thermal solvents include ureas, pyridines, amides, sulfonamides, imides, alcohols, oximes, and other heterocycles. In order to promote dye transfer, a high-boiling organic solvent may be contained in the light-sensitive material and / or the dye-fixing element.

As a heating method in the developing and / or transferring step, a heating block, a plate, or a hot plate, a hot presser, a heat roller, a halogen lamp heater, an infrared and far-infrared lamp heater, or the like is used. Or passing through a high temperature atmosphere. A pressure condition and a method of applying pressure when the photosensitive element and the dye fixing element are overlapped and brought into close contact with each other are described in JP-A-61-1.
No. 47244, page 27, can be applied. Any of a variety of thermal development equipment can be used to process the photographic elements of the present invention. For example, JP-A-59-75247 and JP-A-59-75247.
No. 177747, No. 59-181353, No. 60-
No. 18,951, Japanese Utility Model Application Laid-Open No. 62-25944 and the like are preferably used.

[0045]

The present invention will be described in more detail with reference to the following examples.

Example 1 A method for preparing a silver halide emulsion (I) of the third layer and the first layer will be described. Well stirred gelatin aqueous solution (water 1000m
1g containing 20g gelatin and 3g sodium chloride
600 ml of an aqueous solution containing sodium chloride and potassium bromide and a silver nitrate aqueous solution (water 6
(0.59 mol of silver nitrate dissolved in 00 ml) was added simultaneously at an equal flow rate over 40 minutes. Thus, a monodisperse cubic silver chlorobromide emulsion having an average grain size of 0.40 μm (50 mol% of bromine) was prepared. After washing with water and desalting, 5 mg of sodium thiosulfate and 4-hydroxy-6-
Methyl-1,3,3a, 7-tetrazaindene 20mg
Was added and chemical sensitization was performed at 60 ° C. The yield of the emulsion was 600 g.

Next, the silver halide emulsion for the fifth layer (I
State how to make I). A well-stirred aqueous gelatin solution (containing 20 g of gelatin and 3 g of sodium chloride in 1000 ml of water and kept at 75 ° C.) is a 600 ml aqueous solution containing sodium chloride and potassium bromide, and an aqueous silver nitrate solution (600 ml of water is silver nitrate). 0.59 mol) was added simultaneously at an equal flow rate over 40 minutes. Thus, a monodispersed cubic silver chlorobromide emulsion (80 mol% of bromine) having an average grain size of 0.35 μm was prepared. After washing with water and desalting, 5 mg of sodium thiosulfate and 20 mg of 4-hydroxy-6-methyl-1,3,3a, 7-tetrazaindene were added, followed by chemical sensitization at 60 ° C. The yield of the emulsion was 600 g.

Next, a method of preparing a gelatin dispersion of zinc hydroxide will be described. 12.55 g of zinc hydroxide having an average particle size of 0.25 μm, 1 g of carboxymethyl cellulose as a dispersant, and 0.1 g of sodium polyacrylate were added to 100 cc of a 4% aqueous gelatin solution, and glass beads having an average particle size of 0.75 mm were used in a mill. And crushed for 30 minutes. The glass beads were separated to obtain a gelatin dispersion of zinc hydroxide.

Next, a method for preparing a gelatin dispersion of a hydrophobic additive will be described. The oil phase components shown in the following table were each dissolved in 50 cc of ethyl acetate to form a uniform solution at 60 ° C.
To this, an aqueous phase component heated to 60 ° C. was added, and a disperser having an 8 cm diameter dissolver was used for 5000 minutes for 5000 minutes.
Dispersed at rpm. Post-water was added thereto and stirred to obtain a uniform dispersion. This is called a gelatin dispersion of the hydrophobic additive.

[0050]

[Table 1]

From these materials, a heat-developable color light-sensitive material 101 having a multilayer structure as shown in the following table was prepared. [Table 2]

[0052]

[Table 2]

[0053]

[Table 3]

[0054]

[Table 4]

[0055]

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[0056]

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[0057]

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[0058]

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[0059]

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[0060]

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[0061]

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Next, a method for producing the dye fixing material will be described.

A dye fixing material R-1 having the composition shown in the following table was prepared. [Table 3]

[0064]

[Table 5]

[0065]

[Table 6]

[0066]

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[0067]

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The matting agents and water-soluble polymers in Table 3 are as follows. Matting agent (32): benzoguanamine resin (average particle size 1
Water-soluble polymer (25): Sumikagel L5-H (manufactured by Sumitomo Chemical Co., Ltd.) Water-soluble polymer (26): dextran (molecular weight 70,000) Fluorescent whitening agent (29): 2,5-bis (5 -T-butylbenzoxazolyl (2)) thiophene

Next, with respect to the photosensitive material 101, [Table 4]
101, except that the filter dye was added as shown in
The light-sensitive materials 102 to 115 having exactly the same composition as those described above were prepared. When the filter dye is used alone by emulsifying and dispersing, it is used by emulsifying and dispersing according to the following formulation, and when it is used by co-emulsifying with the dye-donating compound, the emulsion of the dye-donating compound is emulsified. At times, a predetermined amount of a filter dye was added to form a co-emulsified dispersion.

[Method of preparing emulsified dispersion of filter dye alone] 2.8 g of the following filter dye (F-1), 1.5 g of sodium dodecylbenzenesulfonate and 7.5 g of triisononyl phosphate as surfactants were used. The mixture was weighed, added with 40 ml of ethyl acetate, and dissolved by heating at about 60 ° C. to obtain a uniform solution. This solution and 125 g of an 8% solution of lime-processed gelatin were mixed with stirring, and then dispersed with a homogenizer at 10,000 rpm for 10 minutes. This dispersion is called a gelatin dispersion of the filter dye (F-1).

[0071]

[Table 7]

[0072]

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The color light-sensitive material 101-1 having the above multilayer structure
No. 15 was exposed using a semiconductor laser exposure machine having the following specifications. Further, the photosensitive material 101-115 is kept at 45 ° C. humidity 8
Samples stored for 7 days under 0% conditions were also prepared and exposed similarly.

[0074]

[Table 8]

The exposed photosensitive material is subjected to a linear velocity of 20 mm / s.
While feeding at ec, 15 ml / m ² of water was supplied to the emulsion surface by a wire bar, and immediately thereafter, the image receiving material and the film surface were superimposed so as to be in contact with each other. The film was heated for 25 seconds using a heat roller whose temperature was adjusted so that the temperature of the water-absorbed film became 95 ° C. Next, when peeled off from the image receiving material, a clear transferred image was obtained on the image receiving material without unevenness. The results of sensitometry of this transferred image are shown in [Table 5].

[0076]

[Table 9]

As shown in [Table 5], it can be seen that the light-sensitive material of the present invention exhibits better performance in color separation and photographic performance after storage than the comparative sample.

Example 2 A method for preparing a dispersion of the electron transfer agent (42) will be described.
10 g of the following electron transfer agent (42), 0.5 g of polyethylene glycol nonyl phenyl ether as a dispersant, and 0.5 g of the following anionic surfactant are added to a 5% aqueous gelatin solution, and glass beads having an average particle size of 0.75 mm are milled. 60
Milled for minutes. Separate glass beads, average particle size 0.3 μ
Was obtained.

[0079]

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Next, a method for preparing a latex of the dye trapping agent (49) will be described. While stirring a mixture of 108 cc of a polymer latex having the following structure (solid content 13%), 20 g of the following surfactant (48), and 1232 cc of water, a 5% aqueous solution of the following anionic surfactant 600 c was stirred.
c was added dropwise over 10 minutes. The suspension thus obtained is subjected to 50-ultrafiltration using an ultrafiltration module.
After concentrating and desalting to 0 cc, 1500 cc of water was added, and the same operation was repeated once more. Thus, a latex of the dye trapping agent (49) was obtained.

[0081]

Embedded image

Next, a method for preparing a gelatin dispersion of a hydrophobic additive will be described. The oil phase components shown in Table 6 below were each dissolved in 50 cc of ethyl acetate to form a uniform solution at 60 ° C. To this, an aqueous phase component heated to 60 ° C. was added, and a disperser having a diameter of 8 cm with a dissolver having a diameter of 500 cm was used for 500 minutes.
Dispersed at 0 rpm. To this, post-water was added and stirred to obtain a uniform dispersion. This is called a gelatin dispersion of the hydrophobic additive.

[0083]

[Table 10]

Using the above materials, a positive type color light-sensitive material 201 having the following multilayer structure was prepared (Table 7). However, the same materials as in Example 1 were used unless otherwise specified.

[0085]

[Table 11]

[0086]

[Table 12]

[0087]

[Table 13]

[0088]

Embedded image

[0089]

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[0090]

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[0091]

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[0092]

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Next, Example 1 was applied to the photosensitive material 201.
A photosensitive material 202 having exactly the same composition as 201 except that a filter dye was added in the same manner as described in [Table 8].
I made ~ 210.

[0094]

[Table 14]

[0095]

Embedded image

Color photosensitive material 201-2 having the above multilayer structure
10 was exposed using a semiconductor laser exposure machine in the same manner as in Example 1. Further, the photosensitive material 201-210 is replaced with 45.
Samples stored for 5 days at 80 ° C. and 80% humidity were also prepared, and these were similarly exposed.

The exposed photosensitive material is subjected to a linear velocity of 20 mm / s.
While feeding at ec, 15 ml / m ² of water was supplied to the emulsion surface with a wire bar, and immediately thereafter, the image receiving material and the film surface were superimposed so as to be in contact with each other. The film was heated for 15 seconds using a heat roller whose temperature was adjusted so that the temperature of the absorbed film became 80 ° C. Next, when peeled off from the image receiving material, a clear transferred image was obtained on the image receiving material without unevenness. The results of sensitometry of this transferred image are shown in [Table 9].

[0098]

[Table 15]

As shown in [Table 9], it can be seen that the photographic material of the present invention exhibited better color separation properties and photographic performance after storage than the comparative sample as in Example 1.

[0100]

According to the present invention, by using a filter dye having an I / O value of 1 or less, a diffusion transfer type color photographic material having good storability, good color separation and good image discrimination can be obtained. Is obtained.

Claims (2)

(57) [Claims] 1. A diffusion transfer type color light-sensitive material for use in an image forming method in which development and diffusion transfer of a dye are carried out in the presence of water, comprising at least a photosensitive silver halide on a support,
A binder, a non-diffusible dye-donating compound that releases or forms a diffusible dye corresponding to or inversely corresponding to a reaction in which silver halide is reduced to silver, and a filter dye having an I / O value of 1 or less. A diffusion transfer type color photosensitive material characterized by the following. 2. A diffusion transfer type color light-sensitive material according to claim 1, wherein the filter dye according to claim 1 is contained in at least one layer containing a photosensitive silver halide emulsion.