JPH08304982A - Dyestuff fixing element and image forming method - Google Patents

Abstract

PURPOSE: To provide images for color proof having a small color difference from the color of printed matter. CONSTITUTION: This dyestuff fixing element is used for an image forming system which forms the images by providing the surface of another base with a dyestuff forming element and the dyestuff fixing element, superposing both elements and transferring diffusive dyestuff. The dyestuff fixing element has a dyestuff fixing layer including at least mordant on the base. The value of CIELAB on the dyestuff fixing layer side of the white ground part of the dyestuff fixing element after image formation is L>=90, a*<=-1.0, b*>=2.0.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a dye-forming element (hereinafter, referred to as
(Also referred to as "light-sensitive element") and a dye-fixing element are provided on different supports, and the two elements are superposed on each other and a diffusible dye is transferred to form an image, and the dye-fixing element of an image forming system and the image formation thereof. It is about the method. Further, the image obtained by the dye-forming element and the dye-fixing element of the present invention is preferably used as a color proof in the printing field.

[0002]

2. Description of the Related Art Photothermographic materials are well known, and the photothermographic material and its process are described, for example, in "Basics of Photographic Engineering", Non-Silver Salt Photograph Edition (1982, published by Corona Publishing Co.).
2 to 255, U.S. Pat. No. 4,500,626 and the like.

In addition, for example, a method of forming a dye image by a coupling reaction between an oxidized product of a developing agent and a coupler is described in US Pat. Nos. 3,761,270 and 4,021,240. Further, a method of forming a positive color image by a photosensitive silver dye bleaching method is described in US Pat. No. 4,235,957.

Further, recently, a method has been proposed in which a diffusible dye is released or formed imagewise by heat development and the diffusible dye is transferred to a dye fixing element. In this method, a negative dye image or a positive dye image can be obtained by changing the type of dye-donor compound used or the type of silver halide used. More specifically, U.S. Pat. Nos. 4,500,626, 4,483,914 and 45,
03137, 4559290, JP-A-58-14.
9046, JP-A-60-133449, 59-2.
No. 18443, No. 61-238056, European Patent Publication 220746A2, Open Technical Report 87-6199, European Patent Publication 210660A2, and the like.

Many methods have been proposed for obtaining a positive color image by heat development. For example, in U.S. Pat. No. 4,559,290, a so-called DRR compound, which is an oxidized compound having no color image releasing ability, is allowed to coexist with a reducing agent or a precursor thereof, and the reducing agent is added according to the exposure amount of silver halide by heat development. A method has been proposed in which the diffusible dye is released by being oxidized and reduced by the reducing agent remaining without being oxidized. Further, European Patent Publication No. 220746A and Kokai Giho No. 87-6199 (Vol. 12, No. 22) disclose that a compound that releases a diffusible dye by a similar mechanism is an N—X bond (X
Represents an oxygen atom, a nitrogen atom or a sulfur atom), and a heat-developable color light-sensitive material using a compound which releases a diffusible dye by reductive cleavage.

Conventional color light-sensitive materials are usually blue, green,
It has red spectral sensitization, and it is common to use a color CRT (cathode ray tube) as an exposure light source to obtain an image by using image information once converted into an electric signal in such a color photosensitive material. However, CRTs are unsuitable for obtaining large size prints.

As a writing head capable of obtaining a large-sized print, a light emitting diode (LED) is used.
Semiconductor lasers (LD) have been developed, but those optical writing heads that efficiently emit blue light have not been developed.

Therefore, for example, when using an LED,
Near infrared (800 nm), red (670 nm) and yellow (570)
It is necessary to expose a color light-sensitive material having three layers spectrally sensitized to near-infrared, red, and yellow by a light source combining three LEDs (nm), and image recording is performed with such a configuration. The system is described in "Nikkei New Material", September 14, 1987, pages 47 to 57, and is partially put into practical use.

Also. 880nm, 820nm, 760n
A system for recording on a color light-sensitive material having three light-sensitive layers having spectral sensitivity at each wavelength with a light source in which three LDs emitting m light is combined is disclosed in Japanese Patent Laid-Open No. 661-137149.
No.

Generally, in a multi-layer color light-sensitive material, when yellow, magenta, and cyan colors are exposed to three different spectral regions to develop colors, it is necessary to reproduce each color without mixing. Has become an important technology. In particular, when using an LED or LD as an exposure light source, there is no choice but to design three spectral sensitivities in a narrow spectral range (from the red end to the infrared region), and how to overlap each spectral sensitivity. How to reduce the amount is the key to improving color separation.

In order to ensure color separation, US Pat.
As described in No. 619,892, there is known a technique of sequentially increasing the sensitivity on the short wavelength side or providing a filter layer. However, increasing the sensitivity of short wavelengths sequentially has a drawback that it causes an increase in fog and deteriorates the stability over time. In infrared sensitization,
It has been difficult to achieve high sensitivity due to low desensitization and low color sensitization efficiency by adding a dye.

In order to solve these drawbacks, Japanese Unexamined Patent Application Publication No.
No. 146431 and Japanese Patent Laid-Open No. 5-45828,
A color light-sensitive material is described which has excellent color separation, high sensitivity, and good raw storage stability by using a J-band type infrared sensitizing dye having a sharp spectral sensitivity.

The dye-forming element as described above is used in combination with a dye-fixing element that mordantes a diffusible dye. When the image obtained by this image forming system is used as a color proof in the printing field, yellow, The color gamut of the image obtained by combining the three color dye images of magenta and cyan is an important factor. That is, it is necessary to be able to cover an area equal to or larger than the color reproduction area of the image obtained by the standard printing ink.

[0014]

SUMMARY OF THE INVENTION An object of the present invention is to form an image by providing a dye-forming element and a dye-fixing element on separate supports, superposing both elements and transferring a diffusible dye. An image forming system is to form an image having a small color difference from the image obtained by the standard printing ink.

[0015]

This and other objects are achieved by the configurations (1), (2) and (3) below. (1) A dye-fixing element for an image-forming system that forms an image by providing a dye-forming element and a dye-fixing element on separate supports, superposing both elements, and transferring a diffusible dye, It has a dye fixing layer containing at least a mordant on the body, and the CIELAB value on the dye fixing layer side of the white background of the dye fixing element after image formation is L ≧ 85, a
A dye fixing element characterized in that ^* ≦ −1.0 and b ^* ≧ 2.0.

(2) In an image forming system for forming an image by providing a dye-forming element and a dye-fixing element on separate supports, superposing both elements and transferring a diffusible dye, the dye-forming element is At least a photosensitive silver halide is contained, and as a result of development of the silver halide, a diffusible dye is formed or released,
In addition, the diffusible dye is one or more of yellow, magenta, and cyan dyes, respectively, and the wavelength at which the absorption intensity of the spectral absorption of the yellow dye is maximum is 440 nm to 460 n.
m, the wavelength at which the maximum absorption intensity of the magenta dye is 525 nm to 545 nm, and the wavelength at which the maximum absorption intensity of the cyan dye is 610 nm to 640 n.
m, and the absorption intensity of each dye satisfies the following formulas (1) to (5), and the dye-fixing element described in the above item (1) is overlaid to form an image. An image forming method characterized by forming. Yellow dye 500nm absorption intensity / Yellow dye maximum absorption intensity <0.3 (1) Magenta dye 450nm absorption intensity / Magenta dye maximum absorption intensity <0.25 (2) Magenta dye 600nm absorption intensity / Maximum absorption intensity of magenta dye <0.1 (3) Absorption intensity of cyan dye at 550 nm / maximum absorption intensity of cyan dye <0.20 (4) Absorption intensity of cyan dye at 700 nm / maximum absorption intensity of cyan dye <0 .30 (5)

(3) In an image forming system in which a dye-forming element and a dye-fixing element are provided on different supports, both elements are superposed, and a diffusible dye is transferred to form an image, the dye-forming element is At least, containing a photosensitive silver halide, characterized by forming or releasing a diffusible dye as a result of the development of the silver halide,
And a compound capable of complex-forming reaction of an alkali necessary for developing silver halide with a sparingly soluble metal compound and a metal ion constituting the sparingly soluble metal compound (referred to as a complex forming compound)
The image forming method as described in the above item (2), which is generated by a two-agent reaction with

The dye-fixing element of the present invention, in a photographic material using a photosensitive silver halide, forms or releases a diffusible dye as a result of development of silver halide, and transfers this diffusible dye to an image receiving material. And used as an image receiving material of a system for obtaining an image. This image forming method is roughly classified into a so-called wet color diffusion transfer method in which development is performed using a processing liquid at around room temperature and a heat development diffusion transfer method in which development is performed by heat development. Can also be used as a suitable image receiving material. Since the dye-fixing element of the present invention is particularly preferably used in the heat development diffusion transfer system, it will be described in detail below, but this description will be given except for the organic silver salt, the development system and the like which are peculiar to the heat development. It can be applied in common with the wet type color diffusion transfer system.

The photothermographic material, which is a preferred embodiment of the dye-forming element used in the present invention, basically comprises a support, a photosensitive silver halide, a binder and a dye-providing compound (a reducing agent as described later). May also serve as), and may further contain an organic metal salt oxidizing agent and the like, if necessary. These components are often added to the same layer, but if they are in a reactive state, they can be divided and added to separate layers. For example, when a colored dye-donor compound is present in the lower layer of the silver halide emulsion, the reduction in sensitivity can be prevented. The reducing agent is preferably incorporated in the photothermographic material, but may be supplied from the outside by, for example, a method of diffusing from a dye fixing element described later. However, by incorporating a reducing agent in the light-sensitive material, the effect of promoting color image formation can be obtained.

In order to obtain a wide range of colors in the chromaticity diagram by using the three primary colors of yellow, magenta and cyan, a combination of at least three silver halide emulsion layers sensitive to different spectral regions is used. . For example, a combination of three layers of a blue-sensitive layer, a green-sensitive layer and an infrared-sensitive layer, a combination of a green-sensitive layer, a red-sensitive layer and an infrared-sensitive layer, or a combination of a red-sensitive layer, a first infrared layer and a second infrared layer. and so on. These are described, for example, in JP-A-59-180,550 and JP-A-59-180.
-13,546, 62-253,159, and European Patent Publication No. 479,167. Each of the light-sensitive layers can take various arrangement orders known in a conventional type color light-sensitive material. Further, each of these photosensitive layers may be divided into two or more layers if necessary. Each of these photosensitive layers is described in JP-A-1-252954. The type of the dye-donor compound (yellow, magenta, cyan) combined with each of these photosensitive layers is optional when reproducing a color image from image information converted into an electric signal as in the present invention, and is usually There is no restriction like the type color photosensitive material.

In the photothermographic material, various non-photosensitive materials such as a protective layer, an undercoat layer, an intermediate layer, a yellow filter layer and an antihalation layer are provided between the uppermost layer and the uppermost layer and between the above silver halide emulsion layers. A conductive layer may be provided, and various auxiliary layers such as a back layer can be provided on the opposite side of the support. Specifically, the layer structure as described in the above patent, the undercoat layer as described in U.S. Pat. No. 5,051,335, JP-A-1-167,838, and JP-A-61-20,943 are described. An intermediate layer having such a solid pigment, JP-A-1-12
0,553, 5-34,884, 2-64,6
No. 34, an intermediate layer having a reducing agent and a DIR compound, US Pat. Nos. 5,017,454 and 5,139,
919, an intermediate layer having an electron transfer agent as described in JP-A-2-235,044, a protective layer having a reducing agent as described in JP-A-4-249,245, and a layer in which these are combined. be able to. The support is preferably designed to have an antistatic function and a surface resistivity of 10 ¹² Ω · cm or less.

When the image obtained from the photothermographic material and the dye fixing element as described above is used as a color proof for printing, it is required that there is no color difference from the printed matter obtained from the printing ink. There is no color difference, that is, the color reproduction range of the image obtained from the photothermographic material and the dye fixing element is wider than the color reproduction range of the image obtained from the printing ink. The color reproduction range refers to the color reproduction in all lightness ranges. As a factor that determines the color reproduction range of an image obtained from a photothermographic material and a dye fixing element, three color dyes of yellow, magenta, and cyan used, or four color dyes including black, or those It goes without saying that the hue of the dye in the mixture is important, but the tint of the white background portion of the image also has an important effect. The white background of the image obtained by heat development is the white background of the dye-fixing element itself, the tint of the components transferred from the photothermographic material during heat development, and the tint of the components that are colored by heating, etc. Determined by Among these factors, the white background of the dye fixing element itself is the most important factor. The white background of the dye fixing element itself is determined by the tint of the support, the dye fixing layer, the protective layers provided above and below the dye fixing layer, the intermediate layer, and the like. Therefore, how to design the color of each of these constituents is an important factor. In the present invention, the CIE of the white background portion of this dye fixing element is
LAB values are L ≧ 90, a ^* ≦ −1.0, b ^* ≧ 2.0
In addition, the wavelengths at which the absorption intensities of the yellow, magenta, and cyan dyes are maximum are 440 nm to 460 nm (yellow) and 525 n, respectively.
m to 545 nm (magenta), 610 nm to 640
use a dye having a wavelength of nm (cyan), an absorption intensity of a magenta dye of magenta color, a result of development of the silver halide, and an absorption intensity of each dye satisfying the following formulas (1) to (5) It was found that it is effective in forming an image with little color difference from the printed matter. Yellow dye 500nm absorption intensity / Yellow dye maximum absorption intensity <0.3 (1) Magenta dye 400nm absorption intensity / Magenta dye maximum absorption intensity <0.25 (2) Magenta dye 600nm absorption intensity / Maximum absorption intensity of magenta dye <0.1 (3) Absorption intensity of cyan dye at 550 nm / maximum absorption intensity of cyan dye <0.20 (4) Absorption intensity of cyan dye at 700 nm / maximum absorption intensity of cyan dye <0 .30 (5) Furthermore, in order to improve the S / N ratio of the image obtained from the photothermographic material and the dye fixing element, alkali is generated only during the heat development, and the material is stored before the image formation. Materials that are neutral at times or during storage after imaging are suitable. As such a reaction, a two-part reaction of a sparingly soluble metal compound and a compound capable of forming a complexing reaction with a metal ion constituting the sparingly soluble metal compound (referred to as a complex forming compound) is suitable for that purpose. (For this alkali generation method, European Patent Publication No. 210,660, US Pat.
740,445. The specific means for designing the above material will be described below.

The silver halide emulsion used in the photothermographic material will be described in detail. The silver halide emulsion that 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 an optical fogging. Further, a so-called core-shell emulsion having different phases inside the grain and the surface layer of the grain may be used, or silver halides having different compositions may be joined by epitaxial joining. The silver halide emulsion may be monodisperse or polydisperse, and are disclosed in JP-A-1-167,743 and 4-2.
As described in No. 23,463, a method of adjusting gradation by mixing monodisperse emulsions is preferably used. The particle size is preferably 0.1 to 2 μm, particularly preferably 0.2 to 1.5 μm.
The crystal habit of silver halide grains is one having a regular crystal such as a cube, octahedron, or tetrahedron, a sphere, an irregular crystal system such as a flat plate having a high aspect ratio, or a twin plane. Any of those having such a crystal defect, a composite system thereof or the like may be used. Specifically, U.S. Pat. No. 4,500,626, column 50, U.S. Pat. No. 4,628,021.
No., Research Disclosure (hereinafter abbreviated as RD) No. 17,029 (1978), ibid. 1
7, 643 (December 1978), pages 22-23, N.
o. 18, 716 (November 1979), p. 648, ibid. 307, 105 (November 1989) 863-8
P. 65, JP-A-62-253,159, 64-1.
3,546, JP-A-2-236,546, 3-1.
10, 555, and Graphide, "Physics and Chemistry of Photography," published by Paul Monte (P.Glafkides, Chemie et Phis.
ique Photographique, Paul Montel, 1967), "Photoemulsion Chemistry" by Duffin, published by Focal Press (GFDuff
in, Photographic Emulsion Chemistry, Focal Press, 1
966), "Production and Coating of Photographic Emulsions" by Zelikmann et al., Published by Focal Press (VLZelikman et al., Making and
Coating PhotographicEmulsion, Focal Press, 1964
Any of the silver halide emulsions prepared by the method described in (1), etc. can be used.

In the process of preparing the light-sensitive silver halide emulsion of the present invention, it is preferable to carry out so-called desalting to remove excess salt. As a means for this, a Nudel water washing method in which gelatin is gelled may be used, and inorganic salts (for example, sodium sulfate) composed of polyvalent anions, anionic surfactants, anionic polymers (for example, polystyrene sulfonic acid). The precipitation method using sodium) or a gelatin derivative (eg, aliphatic acylated gelatin, aromatic acylated gelatin, aromatic carbamoylated gelatin, etc.) may be used. The sedimentation method is preferably used.

The photosensitive silver halide emulsion used in the present invention may contain heavy metals such as iridium, rhodium, platinum, cadmium, zinc, thallium, lead, iron and osmium for various purposes. These compounds may be used alone or in combination of two or more. The addition amount depends on the purpose of use, but is generally about 10 ^-9 to 10 ^-3 mol per mol of silver halide. When it is contained, it may be uniformly added to the particles, or may be localized inside or on the surface of the particles. Specifically, the emulsions described in JP-A-2-236542, JP-A-1-116637, and JP-A-4-126629 are preferably used.

In the step of forming grains of the light-sensitive silver halide emulsion of the present invention, rhodan salt, ammonia, 4-substituted thioether compound and JP-B No. 47-1 are used as silver halide solvents.
The organic thioether derivatives described in 1,386 or the sulfur-containing compounds described in JP-A-53-144,319 can be used.

For other conditions, see Graphide, "Physics and Chemistry of Photography," published by Paul Monte (P.Glaf).
kides, Chemie et Phisique Photographique, Paul Mont
el, 1967), "Photographic Emulsion Chemistry" by Duffin, published by Focal Press (GFDuffin, Photographic Emulsion Chemi
stry, Focal Press, 1966), "Manufacturing and coating of photographic emulsions" by Zelikmann et al., published by Focal Press (VLZelikm).
an et al., Making and Coating Photographic Emulsion,
Focal Press, 1964) etc. may be referred to. That is, any of an acidic method, a neutral method and an ammonia method may be used, and as a method of reacting a soluble silver salt and a soluble halogen salt, any of a one-sided mixing method, a simultaneous mixing method and a combination thereof may be used. The double jet method is preferably used to obtain a monodisperse emulsion. A back mixing method in which the grains are formed in the presence of excess silver ions can also be used. A so-called controlled double jet method, in which pAg in the liquid phase in which silver halide is produced is kept constant, can also be used as one form of the simultaneous mixing method.

In order to accelerate the grain growth, the addition concentration, the addition amount and the addition rate of the silver salt and the halogen salt to be added may be increased (JP-A-55-142,329 and JP-A-55-158). 124, U.S. Pat. No. 3,650,757). Further, the stirring method of the reaction liquid may be any known stirring method. Further, the temperature and pH of the reaction solution during the formation of silver halide grains may be set arbitrarily according to the purpose. The preferred pH range is 2.2 to 8.5, more preferably 2.5 to 7.5.

The photosensitive silver halide emulsion is usually a chemically sensitized silver halide emulsion. For the chemical sensitization of the photosensitive silver halide emulsion of the present invention, a chalcogen sensitizing method such as a sulfur sensitizing method, a selenium sensitizing method, a tellurium sensitizing method, or the like, which is known in emulsions for conventional light-sensitive materials, gold, platinum, A noble metal sensitization method using palladium or the like and a reduction sensitization method can be used alone or in combination (for example, JP-A-3-110,55).
No. 5, Japanese Patent Application No. 4-75,798, etc.). These chemical sensitizations can also be carried out in the presence of a nitrogen-containing heterocyclic compound (JP-A-62-253,159). Further, an antifoggant described below can be added after the completion of the chemical sensitization. Specifically, JP-A-5-45,833 and JP-A-62-4
The method described in No. 0,446 can be used. The pH during chemical sensitization is preferably 5.3 to 10.5, more preferably 5.5 to 8.5, and pAg is preferably 6.0.
˜10.5, more preferably 6.8 to 9.0. The coating amount of the photosensitive silver halide emulsion used in the present invention is in the range of 1 mg to 10 g / m ² in terms of silver.

In order to provide the photosensitive silver halide used in the present invention with green-sensitive, red-sensitive and infrared-sensitive color sensitivity, the photosensitive silver halide emulsion is spectrally sensitized with a methine dye or the like. . Further, if necessary, the blue-sensitive emulsion may be spectrally sensitized in the blue region. The dyes used include cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes and hemioxonol dyes. Specifically, US Pat.
617,257, JP-A-59-180,550, JP-A-64-13,546, JP-A-5-45,828 and JP-A-5-45,834. These sensitizing dyes may be used alone, or a combination thereof may be used, and the combination of sensitizing dyes is often used particularly for the purpose of supersensitization or wavelength adjustment of spectral sensitivity. Along with the sensitizing dye, a dye having no spectral sensitizing effect itself or a compound that does not substantially absorb visible light and exhibits supersensitization may be contained in the emulsion (for example, US Pat. 615, 641 and those described in JP-A-63-23, 145). These sensitizing dyes may be added to the emulsion at the time of chemical ripening or before or after the chemical ripening, or according to U.S. Pat. Nos. 4,183,756 and 4,225,666 before and after the nucleation of silver halide grains. Good. Further, these sensitizing dyes and supersensitizers may be added in a solution of an organic solvent such as methanol, a dispersion of gelatin or a solution of a surfactant. The addition amount is generally 10 ^-8 to 10 per mol of silver halide.
^-It is about ² mol.

Additives used in such steps and known photographic additives usable in the photothermographic material and dye fixing material of the present invention are described in RD No. 17,643,
Same No. 18, 716 and No. 307 and 105, and the corresponding parts are summarized in the table below. Types of additives RD17643 RD18716 RD307105 1. Chemical sensitizer page 23 page 648 right column page 866 2. Sensitivity enhancer page 648, right column 3. Spectral sensitizer, pages 23 to 24, page 648, right column, pages 866 to 868, supersensitizer, page 649, right column, 4. 4. Optical brightener page 24 page 648 right column page 868 5. Fogging prevention 24 to 25 pages 649 right column 868 to 870 Agents and stabilizers 6. Light absorber, pages 25-26, page 649, right column, page 873, filter dye, page 650, left column, ultraviolet absorber 7. Dye image Page 25 Page 650 Left column Page 872 Stabilizer 8. Hardener, page 26, page 651, left column, pages 874-875 9. Binder page 26 page 651 left column page 873-874 10. Plasticizer, page 27, page 650, right column, page 876, lubricant 11. Coating aid, pages 26 to 27, page 650, right column, pages 875 to 876, surface active agent 12. Static page 27, page 650, right column, pages 876-877, inhibitor 13. Matting agent pp. 878-879

A hydrophilic binder is preferably used as the binder of the constituent layers of the photothermographic material and the dye fixing material. Examples thereof include Research Disclosure mentioned above and pages (71) to (75) of JP-A-64-13,546.
The thing described in the page is mentioned. Specifically, a transparent or translucent hydrophilic binder is preferable, and for example, gelatin, proteins such as gelatin derivatives or cellulose derivatives, natural compounds such as starch, gum arabic, dextran, and polysaccharides such as pullulan and polyvinyl alcohol,
Examples thereof include synthetic polymer compounds such as polyvinylpyrrolidone and acrylamide polymers. Also, U.S. Pat. No. 4,96
No. 0,681, JP-A No. 62-245,260 and the like, a superabsorbent polymer, that is, -COOM or -SO
Homopolymers of vinyl monomers having ₃ M (M is a hydrogen atom or an alkali metal) or copolymers of these vinyl monomers or copolymers with other vinyl monomers (for example, sodium methacrylate, ammonium methacrylate,
Sumika Gel L-5H manufactured by Sumitomo Chemical Co., Ltd. is also used. These binders can be used in combination of two or more. In particular, a combination of gelatin and the above binder is preferable, and the gelatin may be selected from lime-processed gelatin, acid-processed gelatin, so-called decalcified gelatin having a reduced content of calcium and the like, and used in combination. Is also preferable.

When a system in which a small amount of water is supplied for thermal development is adopted, it is possible to quickly absorb water by using the above superabsorbent polymer. Also, apart from the present invention, the use of superabsorbent polymers in the dye fixing layer or its protective layer can prevent the dye from retransferring from the dye fixing element to another after transfer. In the present invention, the coating amount of the binder is 20 g per 1 m ^2.
The following is preferable, particularly 10 g or less, and further 7 g to 0.5
It is suitable to be g.

In the present invention, an organic metal salt may be used as an oxidizing agent together with the photosensitive silver halide emulsion. Among such organic metal salts, organic silver salts are particularly preferably used. Organic compounds that can be used to form the above organic silver salt oxidizing agents include those described in US Pat.
There are benzotriazoles, fatty acids and other compounds described in Nos. 00,626, columns 52 to 53. The acetylene silver described in U.S. Pat. No. 4,775,613 is also useful. Two or more kinds of organic silver salts may be used in combination. The above organic silver salt is 0.01 mol per mol of photosensitive silver halide.
-10 mol, preferably 0.01-1 mol can be used in combination. The total coating amount of the photosensitive silver halide emulsion and the organic silver salt is 0.05 to 10 g / m ² , preferably 0.1 to ⁴ g / m ² g in terms of silver.

As the reducing agent used in the present invention, those known in the field of photothermographic materials can be used. Further, a dye-donor compound having a reducing property described later is also included (in this case, other reducing agents can be used together). Further, a reducing agent precursor which has no reducing property itself but exhibits reducing property by the action of a nucleophile or heat during the development process can also be used. Examples of reducing agents used in the present invention include US Pat. No. 4,500,626.
Nos. 49 to 50, No. 4,839,272, No. 4,330,617, No. 4,590,152, No. 5,017,454, No. 5,139,919, Kaisho 60-140,335, pages (17) to (18),
57-40,245, 56-138,736,
59-178,458, 59-53,831,
59-182,449, 59-182,450
No. 60, No. 60-119, 555, No. 60-128, 43
No. 6, No. 60-128,439, No. 60-198,5
No. 40, No. 60-181, 742, No. 61-259,
No. 253, No. 62-201, 434, No. 62-24
No. 4,044, No. 62-131, 253, No. 62-1
No. 31,256, No. 63-10, 151, No. 64-1
No. 3,546, pages (40) to (57), JP-A-1-
120,553, 2-32,338, 2-3
No. 5,451, No. 2-234, No. 158, No. 3-16
0,443, EP 220,746, 78-
There are reducing agents and reducing agent precursors described on page 96 and the like.
Combinations of various reducing agents such as those disclosed in US Pat. No. 3,039,869 can also be used.

When a diffusion resistant reducing agent is used, an electron transferring agent and / or
Alternatively, electron transfer agent precursors can be used in combination. Particularly preferably, said US Pat. No. 5,139,
919, European Patent Publication No. 418,743, JP-A-1
Those described in Nos. -138,556 and 3-102,345 are used. Further, a method of stably introducing into a layer as described in JP-A-2-230,143 and JP-A-2-235,044 is preferably used. The electron transfer agent or its precursor can be selected from the above-mentioned reducing agent or its precursor. 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. The diffusion-resistant reducing agent (electron donor) used in combination with the electron transfer agent may be one that does not substantially move in the layer of the light-sensitive material among the reducing agents described above, and preferably hydroquinone, Sulfonamide phenols, sulfonamide naphthols, JP-A-53-
110827, U.S. Pat. Nos. 5,032,487, 5,026,634, and 4,839,272, and compounds described as electron donors, and a diffusion-resistant and reducing dye described later. Donor compounds and the like can be mentioned. Further, an electron donor precursor as described in JP-A-3-160,443 is also preferably used. Further, the reducing agent can be used in the intermediate layer and the protective layer for various purposes such as prevention of color mixture, improvement of color reproduction, improvement of white background, and prevention of silver transfer to dye fixing material. Specifically, European Patent Publication No. 52
4,649, 357,040, Japanese Patent Laid-Open No. 4-24
No. 9,245, No. 2-64,633, No. 2-46,4
No. 50 and the reducing agents described in JP-A No. 63-186,240 are preferably used. In addition, Japanese Examined Patent Publication No. 3-63,733,
JP-A-1-150,135, 2-110,557
Development inhibitor releasing reducing compounds such as those described in JP-A Nos. 2-64,634, 3-43,735 and EP-A-451,833 can also be used. In the present invention, the total amount of the reducing agent added is 0.01 to 20 mol per mol of silver,
It is particularly preferably 0.1 to 10 mol.

In the present invention, silver can be used as the image forming substance. In addition, when silver ions are reduced to silver under high temperature conditions, they may contain a compound that generates or releases a mobile dye corresponding to this reaction or vice versa, that is, contains a dye-donating compound. it can. 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. A 2-equivalent coupler having a diffusion resistant group as a leaving group and forming a diffusible dye by an oxidative coupling reaction is also preferable. The diffusion resistant group may form a polymer chain.
Specific examples of color developing agents and couplers are described in T.W. H. Jam
es "The Theory of the Pho"
"graphical Process" 4th edition 291 ~
334 and 354-361, RD-307, 10
No. 5, page 871, JP-A-58-123,533, 5
8-149,046, 58-149,047, 59-111,148, 59-124,399,
59-174,835, 59-231,539.
No. 59-231,540, and No. 60-2,950.
No. 60, No. 60-2,951, No. 60-14, 242,
Nos. 60-23,474 and 60-66,249 are described in detail.

As another example of the dye-donating compound,
Examples thereof include compounds having a function of releasing or diffusing a diffusible dye in an image form. This type of compound can be represented by the following general formula [LI]. ((Dye) m-Y) n-Z [LI] Dye represents a dye group, a temporarily shortened dye group or a dye precursor group, Y represents a simple bond or linking group, and Z represents an image-like structure. Or (Dye) m which causes a difference in diffusivity of the compound represented by ((Dye) m-Y) n-Z corresponding to or opposite to the photosensitive silver salt having a latent image.
-Y is released, and the released (Dye) m-Y and ((Dy) m-Y
e) m-Y) n-Z represents a group having a property of causing a difference in diffusibility, m represents an integer of 1 to 5, n represents 1 or 2, and m and n Either one
If not, the plurality of Dyes may be the same or different. Specific examples of the dye donating compound represented by the general formula [LI] include the following compounds (1) to (3). The following items (1) to (4) are for forming a diffusible dye image (positive dye image) in reverse correspondence to the development of silver halide. To form a negative dye image).

US Pat. Nos. 3,134,764, 3,362,819, 3,597,200, 3,544,545, 3,482,972 and Japanese Patent Publication No. 3-68. No. 387, etc., a dye developer in which a hydroquinone-based developer and a dye component are linked. This dye developing agent is diffusible in an alkaline environment, but becomes non-diffusible when it reacts with silver halide. As described in U.S. Pat. No. 4,503,137, a non-diffusible compound which releases a diffusible dye in an alkaline environment but loses its ability when reacted with silver halide can also be used. An example is U.S. Pat. No. 3,983.
Compounds releasing a diffusible dye by an intramolecular nucleophilic substitution reaction described in US Pat. No. 4,199,
Compounds that release a diffusible dye by the intramolecular rewinding reaction of the isoxazolone ring described in JP-A No. 354 and the like.

US Pat. No. 4,559,290, European Patent 220,746A2, US Pat. No. 4,783.
No. 396, Open Technical Report 87-6, 199, JP-A-64-1
As described in No. 3,546, a non-diffusible compound that reacts with a reducing agent remaining without being oxidized by development to release a diffusible dye can also be used. Examples thereof include U.S. Pat. Nos. 4,139,389 and 4,139,379.
No. 59-185,333, 57-84,4.
Compounds which release diffusible dyes by a nucleophilic substitution reaction in the molecule after reduction described in US Pat. No. 4,232,107, JP-A-59-101,64
9, No. 61-88,257, RD24,025 (1
984) and the like, which release a diffusible dye by an intramolecular electron transfer reaction after reduction, West German Patent No. 3,008,588A, JP-A-56-142,5.
30, U.S. Pat. Nos. 4,343,893 and 4,61
Compounds which release a diffusible dye by cleavage of a single bond after reduction as described in US Pat.
Nitro compounds releasing a diffusible dye after electron acceptance as described in U.S. Pat.
Examples thereof include compounds that release a diffusible dye after electron acceptance as described in JP-A No. 9,610.

Further, as more preferable ones, European Patent No. 220,746, Open Technical Report 87-6,199, US Pat. No. 4,783,396, JP-A-63-201,6
No. 53, No. 63-201, 654, No. 64-13, 5
No. 46, etc., a compound having an N—X bond (X represents an oxygen, sulfur or nitrogen atom) and an electron-withdrawing group in one molecule, one molecule described in JP-A-1-26,842. A compound having SO ₂ -X (where X is as defined above) and an electron-withdrawing group within the molecule, and a PO-X bond (where X is as defined above) within one molecule described in JP-A-63-271344. And a compound having an electron-withdrawing group, JP-A-63-271341
The compound having a C—X ′ bond (X ′ is the same as X or representing —SO ₂ —) and an electron-withdrawing group in one molecule described in No. In addition, JP-A-1-161,237
Compounds described in JP-A No. 1-161, 342, which release a diffusible dye by cleavage of a single bond after reduction by a π bond conjugated with an electron-accepting group. Among these, a compound having an N—X bond and an electron-withdrawing group in one molecule is particularly preferable. A specific example is European Patent 220,746.
Or the compounds (1) to (3), (7) to (10), (12), described in U.S. Pat. No. 4,783,396.
(13), (15), (23) to (26), (31),
(32), (35), (36), (40), (41),
(44), (53) to (59), (64), (70),
Compound (11) described in Published Technical Report 87-6,199
To (23), and compounds (1) to (84) described in JP-A No. 64-13,546.

A compound (DDR coupler) which is a coupler having a diffusible dye as a leaving group and releases the diffusible dye by a reaction with an oxidized product of a reducing agent. Specifically, British Patent No. 1,330,524, Japanese Patent Publication No. 48-39,165,
U.S. Pat. Nos. 3,443,940 and 4,474,86
No. 7, 483, 914 and the like. Reducible to silver halide or organic silver salt,
A compound that releases a diffusible dye when the other party is reduced (DR
R compound). Since this compound does not need to use another reducing agent, it is preferable because there is no problem of image contamination due to oxidative decomposition products of the reducing agent. A typical example thereof is US Pat. No. 3,92.
8,312, 4,053,312, 4,05
5,428, 4,336,322, JP-A-59-
65,839, 59-69,839, 53-
3,819, 51-104,343, RD17,
465, U.S. Pat. Nos. 3,725,062 and 3,7.
28,113, 3,443,939, JP-A-58.
-116,537, 57-179,840, U.S. Pat. No. 4,500,626 and the like. DR
Specific examples of the R compound include the above-mentioned US Pat.
The compounds described in Columns 22 to 44 of No. 0626 can be mentioned. Among them, the compounds (1) to (3), (10) to (13), (16) described in the above-mentioned U.S. Pat. ) ~
(19), (28) to (30), (33) to (35),
(38) to (40) and (42) to (64) are preferable.
The compounds described in US Pat. No. 4,639,408, columns 37 to 39 are also useful. In addition, as a dye-donor compound other than the coupler and the general formula [LI] described above, a dye silver compound in which an organic silver salt and a dye are bonded (Research Disclosure, May 1978, 54-58).
Pages, etc.), azo dyes used in the heat-development silver bleaching method (US Pat. No. 4,235,957, Research Disclosure, 1976, No. 4, pages 30 to 32, etc.), leuco dyes (US Pat. 3,985,565 and 4,0
No. 22,617, etc.) can also be used. Specific examples of the DRR compound will be given below, but the specific examples of the present invention are not limited thereto.

[0043]

Embedded image

[0044]

Embedded image

[0045]

Embedded image

[0046]

[Chemical 4]

[0047]

Embedded image

[0048]

[Chemical 6]

[0049]

[Chemical 7]

Hydrophobic additives such as dye-donating compounds and diffusion-resistant reducing agents can be incorporated into the layer of the photothermographic material by known methods such as the method described in US Pat. No. 2,322,027. it can. In this case, US Pat.
55,470, 4,536,466, 4,53
No. 6,467, No. 4,587, 206, No. 4,55
No. 5,476, No. 4,599,296, Japanese Patent Fair 3-6
A high-boiling point organic solvent such as that described in No. 2,256 can be used in combination with a low-boiling point organic solvent having a boiling point of 50 ° C. to 160 ° C., if necessary. In addition, two or more kinds of these dye donating compounds, diffusion resistant reducing agents, high boiling point organic solvents and the like can be used in combination. The amount of the high boiling point organic solvent is 10 g or less, preferably 5 g or less, and more preferably 1 g to 0.1 g, relative to 1 g of the dye-donor compound used. Also, 1 cc or less, further 0.5 for 1 g of binder
cc or less, particularly 0.3 cc or less is suitable. Further, a dispersion method using a polymer described in JP-B-51-39,853 and JP-A-51-59,943 and JP-A-62-3
The method of adding it as a fine particle dispersion described in No. 0,242 and the like can also be used. In the case of a compound which is substantially insoluble in water, fine particles can be dispersed and contained 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, those listed as the surfactants on pages (37) to (38) of JP-A-59-157,636 and described above in Research Disclosure can be used. In the photothermographic material of the present invention, a compound capable of activating development and stabilizing an image at the same time can be used. The specific compounds preferably used are described in US Pat. No. 4,500,626, columns 51 to 52.

In a system for forming an image by diffusion transfer of a dye, for the purpose of improving the white background of the obtained image by immobilizing or achromating unnecessary dyes and coloring matters in the constituent layers of the photothermographic material of the present invention. Various compounds can be added. Specifically, European Published Patent No. 353,741
No. 461,416, JP-A-63-163,345.
No. 62-203,158 can be used.

Various pigments and dyes can be used in the constituent layers of the photothermographic material of the present invention for the purpose of improving color separation and increasing sensitivity. Specifically, the compounds described in Research Disclosure and European Published Patent No. 479,1
67, 502,508, JP-A-1-167,83
No.8, No.4-343,355, No.2-168,252
No. 6, JP-A-61-20,943, European Patent Publication No. 47
The compounds and layer constitutions described in No. 9,167, No. 502,508 and the like can be used.

In a system for forming an image by diffusion transfer of a dye, a dye fixing material is used together with a photothermographic material. The dye fixing material may be applied separately on a support different from the photosensitive material, or may be applied on the same support as the photosensitive material. Regarding the relationship between the light-sensitive material and the dye fixing material, the relationship with the support, and the relationship with the white reflective layer, the relationship described in column 57 of US Pat. No. 4,500,626 can be applied to the present invention. The dye fixing material preferably used in the present invention has at least one layer containing a mordant and a binder. As the mordant, those known in the photographic field can be used. Specific examples thereof include US Pat. No. 4,500,626, columns 58 to 59, JP-A-61-161.
88, 256, pages (32) to (41) and JP-A-1-1.
No. 61,236, mordanting agents described on pages (4) to (7), U.S. Pat. Nos. 4,774,162 and 4,619,883.
Nos. 4,594,308 and the like. Further, a dye-receptive polymer compound as described in US Pat. No. 4,463,079 may be used. The hydrophilic binder is preferable as the binder used in the dye fixing material of the present invention. Further, it is preferable to use carrageenans as described in European Patent Publication No. 443,529 and latexes having a glass transition temperature of 40 ° C. or lower as described in Japanese Patent Publication No. 3-74,820. If necessary, the dye fixing material may be provided with auxiliary layers such as a protective layer, a peeling layer, an undercoat layer, an intermediate layer, a back layer and an anti-curl layer. In particular, it is useful to provide a protective layer.

In the constituent layers of the photothermographic material and the dye-fixing material, a high boiling point organic solvent can be used as a plasticizer, a slipping agent or an agent for improving the releasability between the photosensitive material and the dye-fixing material. Specific examples include those described in Research Disclosure and JP-A-62-245,253. Further, various silicone oils (all silicone oils from dimethyl silicone oils to modified silicone oils obtained by introducing various organic groups into dimethyl siloxane) can be used for the above purpose. As examples thereof, various modified silicone oils described in “Modified Silicone Oil” technical data P6-18B issued by Shin-Etsu Silicone Co., Ltd., particularly carboxy-modified silicone (trade name X-22-3710) are effective. Silicone oils described in JP-A Nos. 62-215,953 and 63-46,449 are also effective.

An anti-fading agent may be used in the photothermographic material and dye fixing material. As the anti-fading agent, there are, for example, an antioxidant, an ultraviolet absorber, or a certain kind of metal complex, and the dye image stabilizer and the ultraviolet absorber described in the above Research Disclosure are also useful. Examples of the antioxidant include chroman compounds, coumarane compounds, phenol compounds (for example, hindered phenols), hydroquinone derivatives, hindered amine derivatives, and spiroindane compounds. In addition, JP-A-61
The compounds described in -159,644 are also effective. As the ultraviolet absorber, benzotriazole compounds (US Pat. No. 3,533,794 etc.), 4-thiazolidone compounds (US Pat. No. 3,352,681 etc.), benzophenone compounds (JP-A-46- 2,784) and others, JP-A-54-48,535 and 62-1.
36,641 and 61-88,256. Further, the ultraviolet absorbing polymer described in JP-A-62-260,152 is also effective. Examples of the metal complex include U.S. Pat. Nos. 4,241,155 and 4,245.
No. 018, columns 3 to 36, No. 4,254,195, number 3
Column-8, JP-A-62-174,741 and 61-8
8, 256 (27) to (29), 63-199,
248, JP-A-1-75,568, 1-74,2
There are compounds described in No. 72 and the like.

The anti-fading agent for preventing the fading of the dye transferred to the dye fixing material may be contained in the dye fixing material in advance, or the dye may be externally applied from the photothermographic material or a transfer solvent described later. You may make it supply to a fixing material. The above-mentioned antioxidant, ultraviolet absorber, and metal complex may be used in combination with each other. A fluorescent whitening agent may be used in the photothermographic material and the dye fixing material. In particular, it is preferable to incorporate a fluorescent whitening agent in the dye fixing material or supply it from the outside such as a photothermographic material or a transfer solvent. As an example, K. Veenkataraman
Chapter "The Chemistry of Synthe"
tic Dyes "Vol. V, Chapter 8, JP-A-61-143
Examples thereof include the compounds described in No. 752. More specifically, stilbene compounds, coumarin compounds, biphenyl compounds, benzoxazolyl compounds, naphthalimide compounds, pyrazoline compounds, carbostyryl compounds and the like can be mentioned. The fluorescent whitening agent can be used in combination with an anti-fading agent or an ultraviolet absorber. Specific examples of these anti-fading agents, ultraviolet absorbers, and fluorescent whitening agents are described in JP-A-62-215,272 (125) to (137), JP-A-1-161,236.
No. (17)-(43).

As the hardener used in the constituent layers of the photothermographic material and the dye fixing material, the above-mentioned Research Disclosure, US Pat. No. 4,678,739, column 41, US Pat. Sho 59-116,655
No. 62-245, 261, 61-18, 942.
And the hardeners described in JP-A-4-218,044 and the like. More specifically, aldehyde type hardener (formaldehyde etc.), aziridine type hardener, epoxy type hardener, vinyl sulfone type hardener (N, N'-ethylene-bis (vinylsulfonylacetamide)) Ethane),
Examples thereof include N-methylol type hardeners (dimethylolurea etc.) and polymer hardeners (compounds described in JP-A-62-234,157). These hardeners
0.001 to 1 g, preferably 0.005 to 0.5 g, is used per 1 g of coated gelatin. The layer to be added may be any layer of the photosensitive material and the dye-fixing material, or may be divided into two or more layers and added.

Various antifoggants or photographic stabilizers and their precursors can be used in the constituent layers of the photothermographic material and dye fixing material. Specific examples thereof include Research Disclosure, U.S. Pat. Nos. 5,089,378, 4,500,627, 4,614,702, and JP-A 64-13,546 (7). (9) page, (57) to (71) page and (8
1)-(97), U.S. Pat. No. 4,775,610,
No. 4,626,500, No. 4,983,494, JP-A Nos. 62-174,747 and 62-239,148.
No. 63-264,747, JP-A-1-150,1.
No. 35, No. 2-110,557, No. 2-178,65
No. 0, RD17, 643 (1978) (24)-(2
5) The compounds described on page etc. are mentioned. These compounds are preferably used in an amount of 5 × 10 ⁻⁶ to 1 × 10 ⁻¹ mol, and more preferably 1 × 10 ⁻⁵ to 1 × 10 ⁻² mol, per mol of silver.

In the constituent layers of the photothermographic material and the dye fixing material, coating aids, improvement of peeling property, improvement of sliding property, antistatic property,
Various surfactants can be used for the purpose of promoting development and the like. Specific examples of the surfactant include Research Disclosure, JP-A Nos. 62-173,463 and 62-62.
No. 183,457. The constituent layers of the photothermographic material and the dye-fixing material may contain an organic fluoro compound for the purpose of improving slipperiness, preventing electrification, and improving releasability. As typical examples of organic fluoro compounds, JP-B-57-9053, columns 8 to 17, JP-A-61-209 can be used.
No. 44, No. 62-135826, or the like, or a fluorine-containing surfactant such as a fluorine-containing surfactant such as a fluorine-containing compound such as a fluorine oil or a solid fluorine-containing compound resin such as a tetrafluoroethylene resin. Can be mentioned.

A matting agent can be used in the photothermographic material and the dye fixing material for the purpose of preventing adhesion and improving slipperiness. Matting agents such as silicon dioxide, polyolefin or polymethacrylate are disclosed in JP-A-61-88.
In addition to the compounds described on page 256 (29), benzoguanamine resin beads, polycarbonate resin beads, AS resin beads, and the like are disclosed in JP-A-63-274944 and JP-A-63-274944.
There are compounds described in No. 274952. In addition, the compounds described in the above Research Disclosure can be used. In addition, the constituent layers of the photothermographic material and the dye-fixing material may contain a thermal solvent, a defoaming agent, an antibacterial / antifungal agent, colloidal silica and the like. Specific examples of these additives are described in JP-A-61-88256, pages (26) to (32), JP-A-3.
-11,338, Japanese Patent Publication No. 2-51,496, etc.

In the present invention, an image forming accelerator can be used in the photothermographic material and / or dye fixing material. The image formation accelerator includes a redox reaction between a silver salt oxidizing agent and a reducing agent, a reaction such as generation of a dye from a dye-donor substance, decomposition of the dye or release of a diffusible dye, and heat development sensitization. It has functions such as accelerating the migration of dyes from the material layer to the dye fixing layer. From the physicochemical functions, bases or base precursors, nucleophilic compounds, high boiling organic solvents (oils), thermal solvents, surfactants. , And compounds that interact with silver or silver ions. However, these substance groups generally have a composite function, and usually have some of the above-mentioned accelerating effects together. Details thereof are described in US Pat. No. 4,678,739, columns 38 to 40. As a base precursor, a salt of an organic acid and a base that is decarboxylated by heat, an intramolecular nucleophilic substitution reaction,
Examples include compounds that release amines by Rossen rearrangement or Beckmann rearrangement. A specific example is U.S. Pat. No. 4,
Nos. 514,493 and 4,657,848.

In a system in which heat development and dye transfer are carried out simultaneously in the presence of a small amount of water, a method of incorporating a base and / or a base precursor into the dye-fixing material is preferable in terms of enhancing the storability of the photothermographic material. . Besides the above,
European Patent Publication 210,660, US Pat. No. 4,74
No. 0,445, a combination of a sparingly soluble metal compound and a compound capable of complex-forming reaction with a metal ion constituting the sparingly soluble metal compound (referred to as a complex-forming compound), and JP-A-61-232451. The compounds that generate a base by electrolysis described in 1) can also be used as the base precursor. The former method is particularly effective. As described in the above-mentioned patent, it is advantageous to add the hardly soluble metal compound and the complex-forming compound separately to the photothermographic material and the dye-fixing material.

In the present invention, various development terminators can be used in the photothermographic material and / or the dye fixing material for the purpose of always obtaining a constant image against variations in processing temperature and processing time during development. . The term "development terminating agent" as used herein refers to a compound that immediately neutralizes or reacts with a base to reduce the concentration of the base in the film to stop the development after proper development, or inhibits development by interacting with silver and a silver salt. Compound. Specific examples thereof 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 more details, see JP-A-6
2-253, 159 (31) to (32).

In the present invention, the support for the photothermographic material or dye fixing material is one that can withstand the processing temperature. Generally, papers and synthetic polymers (films) described in “Basics of Photographic Engineering-Silver Salt Photography” edited by The Photographic Society of Japan, published by Corona Co., Ltd. (1979) (223) to (240). And other photographic supports. Specifically, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyvinyl chloride, polystyrene, polypropylene, polyimide, celluloses (for example, triacetyl cellulose) or those containing pigments such as titanium oxide in these films, Film method synthetic paper made from polypropylene etc., mixed paper made from synthetic resin pulp such as polyethylene and natural pulp, Yankee paper, baryta paper, coated paper (particularly cast coated paper), metal, cloth, glass etc. Is used. These can be used alone or as a support laminated on one or both sides with a synthetic polymer such as polyethylene. The laminate layer may contain pigments and dyes such as titanium oxide, ultramarine blue and carbon black as required. In addition, JP-A-62-253,159 (29) to (31), JP-A-1-161,236 (14) to (17), JP-A-63-316,848.
No. 2, JP-A-2-22,651, and JP-A-3-56,955.
No. 5,001,033 and the like can be used. The back surface of these supports may be coated with a hydrophilic binder, a semiconductive metal oxide such as alumina sol or tin oxide, carbon black and other antistatic agents. Specifically, JP-A-63-220,24
The support described in No. 6 can be used. Further, the surface of the support is preferably subjected to various surface treatments and undercoats for the purpose of improving the adhesion with the hydrophilic binder.

As a method of exposing and recording an image on the photothermographic material, for example, a method of directly photographing a landscape or a person using a camera or the like, or exposing through a reversal film or a negative film using a printer or an enlarger Method, scanning exposure of the original image through a slit, etc. using an exposure device of a copying machine, scanning exposure by causing image information to emit light through a light emitting diode, various lasers (laser diode, gas laser, etc.) Method (Japanese Patent Application Laid-Open No. 2-129,625, Japanese Patent Application No. 3-33)
8,182, 4-9,388, 4-281,4
No. 42), image information is output to an image display device such as a CRT, a liquid crystal display, an electroluminescence display, and a plasma display, and exposed directly or through an optical system.

As a light source for recording an image on a photothermographic material, as described above, natural light, a tungsten lamp, a light emitting diode, a laser light source, a CRT light source, etc., US Pat. No. 4,500,626, column 56, Special Features Kaihei 2-53,
The light source and the exposure method described in Nos. 378 and 2-54,672 can be used. Image exposure can also 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 non-linear optical material is a material capable of exhibiting non-linearity between polarization and an electric field, which appears when a strong optical electric field such as laser light is applied, such as lithium niobate and potassium dihydrogen phosphate (KDP). ), An inorganic compound represented by lithium iodate, BaB ₂ O ₄ or the like, a urea derivative, a nitroaniline derivative, for example, nitropyridine-N-such as 3-methyl-4-nitropyridine-N-oxide (POM). Oxide derivatives, JP-A-61-53462 and JP-A-62-2104
The compound described in No. 32 is 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. Further, the above-mentioned image information is an image signal obtained from a video camera, an electronic still camera, or the like, NTV signal standard (NT
For example, a television signal represented by SC), an image signal obtained by dividing an original image into a large number of pixels such as a scanner, or an image signal created by using a computer represented by CG or CAD can be used.

The photothermographic material and / or dye fixing material of the present invention may have a form having a conductive heating element layer as a heating means for heat development and diffusion transfer of dye. The heat generating element in this case is disclosed in JP-A-61-14.
Those described in No. 5,544 can be used. The heating temperature in the heat development step is about 50 ° C to 250 ° C, and particularly about 60 ° C to 180 ° C is useful. The dye diffusion transfer process may be performed simultaneously with the heat development, or may be performed after the end of the heat development process. In the latter case, the heating temperature in the transfer step can be transferred in the range from the temperature in the heat development step to room temperature, but is preferably 50 ° C. or higher and up to about 10 ° C. lower than the temperature in the heat development step. .

Although the migration of the dye occurs only by heat,
Solvents may be used to facilitate dye transfer. Also,
U.S. Pat. Nos. 4,704,345 and 4,740,44
No. 5, JP-A-61-238,056 and the like, the method of performing development and transfer simultaneously or continuously by heating in the presence of a small amount of solvent (particularly water) is also useful. In this method, the heating temperature is preferably 50 ° C. or higher and not higher than the boiling point of the solvent, for example, 50 ° C. to 100 when the solvent is water.
° C is preferred. Examples of the solvent used for accelerating the development and / or the diffusion transfer of the dye include water, a basic aqueous solution containing an inorganic alkali metal salt or an organic base (these bases are referred to as an image forming accelerator). Those described are used), or a low boiling point solvent or a mixed solution of a low boiling point solvent and water or the above basic aqueous solution. Further, a surfactant, an antifoggant, a complex-forming compound with a poorly soluble metal salt, an antifungal agent, and an antibacterial agent may be contained in the solvent. Water is preferably used as the solvent used in the steps of heat development and diffusion transfer, but any commonly used water may be used. Specifically, distilled water, tap water, well water, mineral water and the like can be used. Further, in the heat developing apparatus using the photothermographic material and the dye-fixing material of the present invention, water may be used up, or may be circulated for repeated use. In the latter case, water containing the components eluted from the material will be used.
Moreover, JP-A-63-144,354 and JP-A-63-144.
355, 62-38,460, JP-A-3-21.
You may use the apparatus and water described in 0,555 etc.

These solvents can be applied to the photothermographic material, the dye fixing material or both of them. The amount used may be not more than the weight of the solvent corresponding to the maximum swelling volume of the entire coated film. As a method of giving this water,
For example, the methods described in JP-A-62-253,159, page (5) and JP-A-63-85,544 are preferably used. Also, the solvent is enclosed in microcapsules,
It may be used by preliminarily incorporating it in the form of a hydrate in the photothermographic material or the dye fixing element or both. The temperature of the applied water may be 30 ° to 60 ° C as described in JP-A-63-85,544. In particular, it is useful to set the temperature to 45 ° C. or higher for the purpose of preventing the growth of various fungi in water.

In order to promote dye transfer, a system in which a hydrophilic thermal solvent which is solid at room temperature and dissolves at high temperature is incorporated in the photothermographic material and / or the dye fixing material can also be adopted. The layer to be incorporated may be any of a photosensitive silver halide emulsion layer, an intermediate layer, a protective layer and a dye fixing layer, but a dye fixing layer and / or a layer adjacent thereto is preferable. Examples of hydrophilic thermal solvents are ureas, pyridines, amides, sulfonamides, imides, alcohols, oximes and other heterocycles.

As a heating method in the developing and / or transferring step, a heated block or plate is brought into contact with a heating plate, a hot presser, a heating roller, a heating drum, a halogen lamp heater, an infrared and far infrared lamp heater. There is a method of contacting with, etc. or passing through in a high temperature atmosphere. The method described in JP-A-62-253,159 and JP-A-61-147,244 (page 27) can be applied to the method of superimposing the heat-developable light-sensitive material and the dye-fixing material.

Any of a variety of heat developing apparatus can be used in processing the photographic elements of this invention. For example, JP-A-59-7
5,247, 59-177, 547, 59-1
81,353, 60-18,951, No. 62
─25,944, Japanese Patent Application No. 4-277,517, 4
No. 243,072, No. 4-244,693, etc. are preferably used. Further, as a commercially available apparatus, Pictrostat 100, Pictrostat 200, Pictrography 3000, Pictrography 2000 and the like manufactured by Fuji Photo Film Co., Ltd. can be used.

When the image obtained by the heat-developable light-sensitive material and the dye fixing element is used as a color proof for printing, the method of expressing the density is to use continuous tone control or use a portion having discontinuous density. Either the area gradation control described above or the gradation control combining both of them may be used. By using LD and LED as the exposure light source, it becomes possible to output a digital signal. As a result, it becomes possible to use (DDCP) in which the control of the image such as the design and the color of the printed matter is performed on the CRT and the color proof is output as the final output. That is, the DDCP is an effective means for efficiently outputting the proof in the field of color proof. This is because the color printer has a relatively simple structure and is inexpensive, and as is well known, the color printer does not need to make a plate-making film or a printing plate (PS plate) related to a color printing machine. This is because it is possible to easily create a hard copy with an image formed on a sheet in a short time and a plurality of times. When an LD or LED is used as an exposure light source, three spectral sensitivities of yellow, magenta, and cyan, or four spectral sensitivities of yellow, magenta, cyan, and black, and two or more kinds for the purpose of obtaining a desired hue The spectral sensitivities of the respective colors obtained by mixing the color materials preferably have their respective peaks of the spectral sensitivities at different wavelengths separated by 20 nm or more. Alternatively, if the spectral sensitivities of two or more different colors differ by a factor of 10 or more, 1
There is also a method of obtaining an image of two or more colors with one exposure wavelength.

Next, a method for reproducing moire on a printed matter by a color printer will be described. In order to create a color proof for printing that faithfully reproduces moire and the like appearing on a high-resolution printed matter with a low-resolution color printer, a threshold matrix is used for each of the CMYK4 halftone dot area ratio data aj. 24, each of them is converted into bitmap data b′j of 48800 DPI. Next, a certain range of bitmap data b'j
Simultaneously, the area ratio ci for each color is counted. Next, the first tristimulus value data X. Y. Calculate Z. This first tristimulus value data X. Y. 400DP with anti-aliasing filter processing applied to Z
I of the second tristimulus value data X ′. Y '. Calculate Z '. This calculation data is used as input data for the color printer. (The above is described in detail in Japanese Patent Application No. 7-5257.

When a color image is recorded using an output device such as a color printer, it is possible to realize a color image having a desired color by operating color signals for yellow, magenta and cyan, for example. However, since the color signal depends on the output characteristic of the output device, the color signal supplied from the external device having different characteristic needs to be subjected to the color conversion process in consideration of the output characteristic. Therefore, a plurality of known color patches of different colors are created by using the output device, and the color patches are colorimetrically measured, so that, for example, the known color signal CMY of the color patch is not dependent on the output device. A conversion relationship for converting into the signal XYZ (hereinafter, this conversion relationship is referred to as “forward conversion relationship”) is obtained, and then the stimulus value signal XYZ is converted from the forward conversion relationship to the color signal C.
There is a method of obtaining a conversion relationship for converting to MY (hereinafter, this conversion relationship is referred to as “inverse conversion relationship”) and performing the color conversion process using this inverse conversion relationship. Here, as the method for obtaining the color signal CMY from the stimulation value signal XYZ, the following three examples will be given, but the example of the present invention is not limited to this. A tetrahedron having the stimulus value signals XYZ of 1.4 points as vertices is set, and the space of the stimulus value signals XYZ is divided by this tetrahedron, and the space of the color signals CMY is also divided by the tetrahedron in the same manner. A method for obtaining a color signal CMY for an arbitrary stimulus value signal XYZ in a tetrahedron by linear calculation. 2. A method in which a color signal CMY corresponding to an arbitrary stimulus value signal XYZ is repeatedly calculated by using the Newton method. (PHOTOGRAPHIC SCIENCE A
ND ENGINEERING Volume 16,
Number 2. March-April 1972
pp136-pp143 "Metameric c"
color matching in subtract
Ive color photography ”) 3. In a color conversion method for converting a color signal from a first color system to a second color system, the first color system obtained from a known real color signal of the second color system And a second step of approximating the first forward conversion relationship by a monotone function to set a virtual color signal outside the area composed of the real color signals. A third step of obtaining a relationship between the step and the color signal of the first color system obtained from the color signal composed of the real color signal and the virtual color signal in the second color system as a second forward conversion relationship. From the step and the second conversion relation, the first operation is performed using an iterative arithmetic method.
A method of converting a color signal from a first color system to a second color system using the inverse conversion relationship, which comprises a fourth step of obtaining the relationship of color signals of the color system as an inverse conversion relationship. That is, this conversion method is a color conversion method for converting a color signal from the first color system to the second color system, in which the first real color signal corresponding to the known real color signal of the second color system (for example, CMY color signal) is used. After obtaining the real color signals of the color system (for example, the XYZ color signals), the first forward conversion relationship between these real color signals is approximated by a monotone function, and is virtualized outside the area formed by the real color signals. Set the color signal.
Then, from the second forward conversion relationship between the second color system and the first color system composed of the real color signal and the virtual color signal, the first color system is represented by an iterative operation represented by the Newton method. An example is a method of obtaining an inverse conversion relationship for converting the system to the second color system and performing color conversion using this inverse conversion relationship.

The size of the image obtained by the heat-developable light-sensitive material and the dye-fixing element may be any of A-row final size, A1-A6, chrysanthemum, B-row final size, B1-B6, and 46-size. good. Further, depending on the size, the size of the photothermographic material and the dye fixing element can be any size in the range of 100 mm to 2000 mm. For the photothermographic material and the dye fixing element, the material may be supplied in a roll form or a sheet form, and only one of them is in a roll form,
It is also possible to use one of them in a sheet-like combination.

The present invention will be described with reference to the following examples.
The present invention is not limited to these.

Example An image receiving material M101 having the structure shown in Table 1 was produced.

[0078]

[Table 1]

[0079]

[Table 2]

[0080]

Embedded image

[0081]

[Chemical 9]

[0082]

[Chemical 10]

[0083]

[Chemical 11]

[0084]

[Chemical 12]

[0085]

[Chemical 13]

[0086]

Embedded image

[0087]

[Chemical 15]

[0088]

Embedded image

Further, an image receiving material was prepared by removing the fluorescent whitening agent (1) from the constituent components of the second layer of M101, and this image receiving material was designated as M102. As a comparative example, an image receiving material was prepared by adding 0.001 part of ultramarine blue to the surface PE layer of the support of M101, and this image receiving material was designated as M103. Further, as a comparative example, an image receiving material was prepared by adding 0.001 part of ultramarine to the surface PE layer of the support of M102, and this image receiving material was designated as M104.

Next, a method for producing the heat-developable color photosensitive material will be described. First, a method of making a photosensitive silver halide emulsion will be described.

Photosensitive Silver Halide Emulsion (1) [Emulsion for Fifth Layer (680 nm Photosensitive Layer)] An aqueous solution having the composition shown in Table 3 and a solution (I) and (II) having the composition shown in Table 4 were stirred well. Solution) was simultaneously added over 13 minutes, and 10 minutes after that, Solution (III) and Solution (IV) having the compositions shown in Table 4 were added over 33 minutes.

[0092]

[Table 3]

[0093]

[Table 4]

[0094]

[Chemical 17]

Also, 13 minutes after the addition of the solution III is started and 27 minutes thereafter, an aqueous solution containing 0.350% of the sensitizing dye is added.
0 cc was added.

After washing with water and desalting (the precipitation agent a was used at a pH of 4.1) by a conventional method, 22 g of lime-treated ossein gelatin was added to adjust the pH to 6.0 and pAg to 7.9. After adjustment, chemical sensitization was performed at 60 ° C. The compounds used for the chemical sensitization are shown in Table 5. The yield of the obtained emulsion is 6
It was a monodisperse cubic silver chlorobromide emulsion having a coefficient of variation of 10.2% at 30 g and an average grain size of 0.20 μm.

[0097]

Embedded image

[0098]

[Table 5]

[0099]

[Chemical 19]

[0100]

Embedded image

Photosensitive Silver Halide Emulsion (2) [Emulsion for Third Layer (750 nm Photosensitive Layer)] Solution (I) and (II) having the composition shown in Table 7 were added to an aqueous solution having the composition shown in Table 6 and well stirred. ) Solution was added simultaneously over 18 minutes, and 10 minutes later, solution (III) and (I
Solution V) was added over 24 minutes.

[0102]

[Table 6]

[0103]

[Table 7]

After washing with water and desalting (pH was set to 3.9 using the precipitating agent b) by a conventional method, calcium-treated lime-treated ossein gelatin (calcium content 150 PPM) was used.
22 g) and redispersed at 40 ° C., 0.39 g of 4-hydroxy-6-methyl-1,3,3a, 7-tetrazaindene is added, pH is 5.9 and pAg is 7. 8
Adjusted to. Then, chemical sensitization was performed at 70 ° C. using the chemicals shown in Table 8. At the end of the chemical sensitization, a sensitizing dye was added as a methanol solution (solution having the composition shown in Table 9).
After chemical sensitization, the temperature was lowered to 40 ° C., 200 g of a gelatin dispersion of a stabilizer described later was added, and the mixture was stirred well and then stored. The yield of the obtained emulsion was 938 g and the coefficient of variation was 1
It was a 2.6% monodisperse cubic silver chlorobromide emulsion with an average grain size of 0.25 μm.

[0105]

[Table 8]

[0106]

[Table 9]

[0107]

[Chemical 21]

Photosensitive Silver Halide Emulsion (3) [Emulsion for First Layer (810 nm Photosensitive Layer)] Aqueous solutions having the compositions shown in Table 10 and (I) solution (II) and (II) Solution) was added simultaneously for 18 minutes, and 10 minutes after that, Solution (III) and Solution (IV) having the compositions shown in Table 11 were added over 24 minutes.

[0109]

[Table 10]

[0110]

[Table 11]

After washing with water and desalting (the precipitation agent a was used at a pH of 3.8) by a conventional method, 22 g of lime-treated ossein gelatin was added to adjust the pH to 7.4 and pAg to 7.8. After adjustment, chemical sensitization was performed at 60 ° C. The compounds used for the chemical sensitization are shown in Table 12. The yield of the obtained emulsion was 680 g, and it was a monodisperse cubic silver chlorobromide emulsion having a variation coefficient of 9.7%, and the average grain size was 0.32 μm.

[0112]

[Table 12]

A method for preparing fine grain silver chloride to be added to the first layer will be described.

Solution A and solution B having the composition shown in Table 14 were simultaneously added to an aqueous solution having the composition shown in Table 13 which was well stirred for 4 minutes, and then, 5 minutes later, solution C having the composition shown in Table 14 was added. Solution D was added over 8 minutes. 2 minutes after the end of addition, 4-
Hydroxy-6-methyl-1,3,3a, 7-tetrazaindene 0.7 g was added. After washing with water and desalting (the precipitation agent a was used at pH 3.9) by a conventional method, 22 g of lime-treated ossein gelatin was added to adjust the pH to 5.7 and pAg to 6.8. The resulting emulsion had an average grain size of 0.
The yield was 530 g with 08 μm of monodispersed silver chloride.

[0115]

[Table 13]

[0116]

[Table 14]

A method for preparing a gelatin dispersion of colloidal silver will be described.

The liquid having the composition shown in Table 16 was added over 24 minutes to the aqueous solution having the composition shown in Table 15 which was well stirred. After washing with water using the precipitating agent a, 43 g of lime-treated ossein gelatin was added to adjust the pH to 6.3. Average particle size is 0.02μm and yield is 512g
Met. (Dispersion containing 2% silver and 6.8% gelatin)

[0119]

[Table 15]

[0120]

[Table 16]

Next, a method for preparing a gelatin dispersion of a hydrophobic additive will be described.

Gelatin dispersions of a yellow dye-donor compound, a magenta dye-donor compound and a cyan dye-donor compound were prepared according to the formulations shown in Table 17, respectively. That is, each oil phase component was dissolved by heating at about 70 ° C. to form a uniform solution, and the aqueous phase component heated at about 60 ° C. was added and mixed with stirring, and then dispersed by a homogenizer at 10,000 rpm for 10 minutes. Water was added to this and stirred to obtain a uniform dispersion.
Further, a gelatin dispersion of a cyan dye-donating compound was added to an ultra loca module (ultra loca module manufactured by Asahi Kasei: ACV
-3050) was repeatedly diluted with water and concentrated, and the amount of ethyl acetate was reduced to 17.6 times the amount of ethyl acetate in Table 17.

[0123]

[Table 17]

A gelatin dispersion of the antifoggant is shown in Table 1.
Prepared according to the recipe of 8. That is, the oil phase component was heated and dissolved at about 60 ° C., the aqueous phase component heated at about 60 ° C. was added to this solution, and the mixture was stirred and mixed, followed by 100 minutes by a homogenizer.
Dispersion was carried out at 00 rpm to obtain a uniform dispersion.

[0125]

[Table 18]

A gelatin dispersion of reducing agent was prepared according to the recipe in Table 19. That is, the oil phase component is dissolved by heating to about 60 ° C, and the aqueous phase component heated to about 60 ° C is added to this solution,
After stirring and mixing, use a homogenizer for 10 minutes at 10,000.
Dispersion was carried out at rpm to obtain a uniform dispersion. Further, ethyl acetate was removed from the obtained dispersion using a vacuum deorganization solvent apparatus.

[0127]

[Table 19]

A dispersion of polymer latex (a)
Prepared according to the recipe in Table 20. That is, the anionic surfactant was added over 10 minutes while stirring the mixed solution of the polymer latex (a), the surfactant and water in the amounts shown in Table 20 to obtain a uniform dispersion. Further, the obtained dispersion is used as an ultra loca module (ultra loca module made by Asahi Kasei: ACV
-3050) was repeatedly diluted with water and concentrated to prepare a dispersion having a salt concentration of 1/9.

[0129]

[Table 20]

A gelatin dispersion of stabilizer was prepared according to the recipe in Table 21. That is, the oil phase component is dissolved at room temperature,
To this solution was added the water phase component heated to about 40 ° C, mixed with stirring, and then with a homogenizer for 10 minutes at 10,000 rpm.
Dispersed in. Water was added to this and stirred to obtain a uniform dispersion.

[0131]

[Table 21]

A gelatin dispersion of zinc hydroxide was prepared according to the recipe in Table 22. That is, after mixing and dissolving each component, a glass mill with an average particle size of 0.75 mm
Acid separated for a minute. Further, the glass beads were separated and removed to obtain a uniform dispersion. (Zinc hydroxide has an average particle size of 0.
The one having a thickness of 25 μm was used. )

[0133]

[Table 22]

Next, a method for preparing a gelatin dispersion of the matting agent added to the protective layer will be described. A liquid prepared by dissolving PMMA in methylene chloride was added to gelatin together with a small amount of a surfactant, and dispersed by stirring at high speed. Subsequently, methylene chloride was removed using a vacuum desolventizer to obtain a uniform dispersion having an average particle size of 4.3 μm.

[0135]

[Chemical formula 22]

[0136]

[Chemical formula 23]

[0137]

[Chemical formula 24]

[0138]

[Chemical 25]

[0139]

[Chemical formula 26]

[0140]

[Chemical 27]

[0141]

[Chemical 28]

[0142]

[Chemical 29]

[0143]

Embedded image

[0144]

[Chemical 31]

[0145]

Embedded image

[0146]

[Chemical 33]

[0147]

Embedded image

[0148]

Embedded image

Photothermographic materials 100 shown in Tables 23 and 24 were produced using the above materials.

[0150]

[Table 23]

[0151]

[Table 24]

A method for producing the photosensitive material 101 will be described. The magenta dye-donor compound of the magenta dispersion added to the fifth layer of the light-sensitive material 100 was changed to the magenta dye-donor compound having the following structure, and the addition amount in the dispersion in Table 13 was changed to 17.6 g. Further, a light-sensitive material 101 was prepared in the same manner as the light-sensitive material 100 except that 2.9 g of a development accelerator having the following structure was added to the oil phase of the magenta dispersion shown in Table 13 and emulsified and dispersed.

[0153]

Embedded image

A method for producing the photosensitive material 102 will be described. The magenta dye-donor compound of the magenta dispersion to be added to the fifth layer of the light-sensitive material 100 was changed to the magenta dye-donor compound having the following structure, and the addition amount in the dispersion in Table 13 was changed to 21.6 g. , The amount of development accelerator added is 0
A light-sensitive material 102 was prepared in the same manner as the light-sensitive material 100 except for emulsifying and dispersing.

[0155]

Embedded image

A method for producing the photosensitive material 103 will be described. The cyan dye-donor compound of the cyan dispersion added to the third layer of the light-sensitive material 100 was changed to a cyan dye-donor compound having the following structure, and the addition amount in the dispersion in Table 13 was 1
The amount was changed to 2.9 g, and the cyan dye-donor compound was changed to a cyan dye-donor compound having the following structure.
The photosensitive material 1 was prepared in the same manner as the photosensitive material 100 except that the amount added in the dispersion was changed to 5.5 g and emulsified and dispersed.
03 was created.

[0157]

[Chemical 38]

A method of forming the photosensitive material 104 will be described. The yellow dye-donor compound of the yellow dispersion added to the first layer of the light-sensitive material 100 was changed to the yellow dye-donor compound having the following structure, and the addition amount in the dispersion in Table 13 was changed to 12.3 g, A light-sensitive material 104 was prepared in the same manner as the light-sensitive material 100 except that it was emulsified and dispersed.

[0159]

[Chemical Formula 39]

A method of forming the photosensitive material 105 will be described. The magenta dye-donor compound of the magenta dispersion to be added to the first layer of the light-sensitive material 100 was changed to the magenta dye-donor compound having the following structure, and the addition amount in the dispersion in Table 13 was changed to 14.7 g. A light-sensitive material 104 was prepared in the same manner as the light-sensitive material 100 except that it was emulsified and dispersed.

[0161]

[Chemical 40]

A method of forming the photosensitive material 106 will be described. The amount of the cyan dye-donor compound in the cyan dispersion to be added to the first layer of the light-sensitive material 100 in the dispersion in Table 13 was changed to 7.3 g, and the amount of the cyan dye-donor compound added was 10. A light-sensitive material 106 was prepared in the same manner as the light-sensitive material 100 except that the amount was changed to 7 g and emulsion dispersion was performed. A light-sensitive material 106 was prepared in the same manner as the light-sensitive material 100 except that it was emulsified and dispersed.

The light-sensitive materials 100 to 106 were respectively combined with the image receiving materials M101 to 104, and images were output under standard conditions with a digital color printer FUJIX PICTROGRAPHY PG-3000 manufactured by Fuji Photo Film Co., Ltd. The output image is 250 colors to 20
It is a standard color chart (calibration chart) for printing of a plurality of 00 colors. Using this color chart, color matching was performed by three of the color conversion methods described in the specification.

After color matching, the standard color chart for printing is output again, and the standard color chart of the printed matter and the PG-30 are printed.
The CIELAB value of the white background portion of each standard color chart output with No. 00 was measured by a colorimeter, and the results are shown in Table 25. Furthermore, the color gamut of each image was calculated by measuring the hue of the obtained color chart. From this result, Table 25 shows the values when the color difference on the chromaticity diagram between the yellow-green region and the magenta-red region at the L value of 20 to 60 is the largest. However, this color difference is a value when the color gamut of the sample output by PG-3000 by the above method is narrower than the color gamut of the printed matter. In addition, the difference in color between the patches on both color charts was visually determined, and those having no difference were evaluated as ◯ and some were evaluated as x. The results are shown in Table 25-
It is summarized in Table 27.

[0165]

[Table 25]

[0166]

[Table 26]

[0167]

[Table 27]

From the results of Table 25, Examples 1 to 8 of the present invention
In comparison with Comparative Examples 1 to 11, it can be seen that there is no color difference with the printed matter and that the color reproduction range is ideal as a print proof color proof for print proof.

Claims (3)

[Claims] 1. A dye-fixing element for an image-forming system for forming an image by providing a dye-forming element and a dye-fixing element on separate supports, superposing the two elements, and transferring a diffusible dye. Having a dye fixing layer containing at least a mordant on a support, and the CIELAB value on the dye fixing layer side of the white background of the dye fixing element after image formation is L ≧ 8.
5. A dye fixing element characterized in that a ^* ≦ −1.0 and b ^* ≧ 2.0. 2. An image forming system for forming an image by providing a dye-forming element and a dye-fixing element on separate supports, superposing the two elements, and transferring a diffusible dye to form an image, at least the dye-forming element. Characterized by containing a photosensitive silver halide and forming or releasing a diffusible dye as a result of development of the silver halide, and the diffusible dye is one or more of yellow, magenta and cyan, respectively. Of the yellow dye, the maximum absorption intensity of the yellow dye is 440 to 460 nm, and the maximum absorption intensity of the magenta dye is 52.
5 nm to 545 nm, the wavelength at which the absorption intensity of the spectral absorption of the cyan dye is maximum is 610 nm to 640 nm, and the absorption intensity of each dye satisfies the following formulas (1) to (5). And the dye fixing element according to claim 1 are superposed on each other to form an image. Yellow dye 500nm absorption intensity / Yellow dye maximum absorption intensity <0.3 (1) Magenta dye 450nm absorption intensity / Magenta dye maximum absorption intensity <0.25 (2) Magenta dye 600nm absorption intensity / Maximum absorption intensity of magenta dye <0.1 (3) Absorption intensity of cyan dye at 550 nm / maximum absorption intensity of cyan dye <0.20 (4) Absorption intensity of cyan dye at 700 nm / maximum absorption intensity of cyan dye <0 .30 (5) 3. An image forming system for forming an image by providing a dye-forming element and a dye-fixing element on separate supports, superposing the two elements, and transferring a diffusible dye to form an image. , A photosensitive silver halide is contained, and as a result of development of the silver halide, a diffusible dye is formed or released, and an alkali necessary for the development of silver halide is used as a hardly soluble metal. A compound and a compound capable of undergoing a complex-forming reaction with a metal ion constituting the sparingly soluble metal compound (referred to as a complex-forming compound) 2
The image forming method according to claim 2, which is generated by a chemical reaction.