JPS59162543A - Color image forming method - Google Patents

Abstract

PURPOSE:To obtain rapidly a high-quality color image by forming a mosaic layer consisting of elements transmitting only blue, green or red light and contg. a corresponding dye (precursor) releasing substance and a silver halide emulsion layer on a transparent support and by transferring a color image to an image receiving layer. CONSTITUTION:A fine mosaic or striped filter layer 2 consisting of elements each transmitting spectrally blue light B, green light G or red light R and a blue-, green- and red-sensitive silver halide emulsion layer 3 are formed on a transparent support 1. The elements of the layer 2 transmitting blue light B contain a yellow dye (precursor) releasing substance, the elements transmitting green light G contain a magenta dye (precursor) releasing substance, and the elements transmitting red light R contain a cyan dye (precursor) releasing substance. The layer 2 contg. the dye releasing redox compounds is exposed and developed with an alkaline processing soln. contg. a color developer, and diffusible dyes are diffused and transferred to an image receiving layer 4. Thus, a high-quality color image is formed by short-time processing.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a novel color image forming method, and more particularly to a color image forming method that reduces processing time and provides high quality color images.

Conventional technology The desire to easily obtain high-quality color images at low cost has existed along with the history of human development, and has evolved from paintings through various changes to today's photographic systems that use silver halide as a photoreceptor. However, although the above-mentioned photographic systems can provide high-quality color images, it is difficult to replace such photographic systems because it is inconvenient to obtain the final image and the cost is not low. Various systems have been proposed, such as thermal transfer systems and inkjet systems. Despite the development of various new photographic systems, the photographic system using silver halide as a photoreceptor still occupies the main position in image forming methods.
No image forming system exists that can compete with this. The photographic system using silver halide as a photoreceptor is M
A system that uses a compound that can form a dye image by a coupling reaction with the oxidized form of a developing agent produced when exposed silver halide is developed, and releases a diffusible dye by reacting with the oxidized form of the developing agent. A system that uses a dye developing agent that is both a dye and a developing agent, and a system that utilizes changing the diffusivity of its oxidized product. Various systems have been put into practical use, such as systems based on destruction.

These systems are divided into systems that use the dye itself generated near silver halide in the layer where silver halide exists as an image, and systems that use the distribution of the diffusible dye that is generated in the form of an image to be diffused as it is. The color diffusion transfer system can be broadly classified into a system (hereinafter referred to as a color diffusion transfer system) in which an image is formed on an image-receiving layer.

The color diffusion transfer system described above is described, for example, in U.S. Pat.
．． 415.644 and Canadian Patent No. 928.55
A photographic system using a laminated integral color diffusion transfer film unit as described in each specification of No. 9 has already been put into practical use as an instant color photography method.

Instant color photography allows color images to be obtained without any special processing of the film unit after it is taken out of the camera. In addition, in the photographic system proposed by Eastman Kodak Company as the Eftaflex system, a photosensitive element is exposed to light through a color negative image, then immersed in an alkaline activator processing solution and laminated with image-receiving paper. A color transfer image can be obtained on 4# paper.

In each of the above-mentioned 9 photographic systems, the processing itself is simple, but because the yellow image forming layer, magenta image forming layer, and cyan image forming layer are stacked, the dye image diffuses into the image receiving layer. Image quality deteriorates in the process. In addition, during development, it takes time for the developing composition contained in the developer to diffuse into the image-forming layer and from the image-forming layer to the image-receiving layer, so the image formation time is long, and the image-receiving layer is This method has drawbacks such as difficulty in obtaining a dye image with good color balance because the diffusion distances of dyes diffusing from adjacent layers and dyes diffusing from layers far from the image-receiving layer are different. ing.

Therefore, in order to improve these drawbacks, the same material has a blue light transmitting region containing a microscopic yellow coupler, a green light transmitting region containing a magenta coupler, and a red light transmitting region containing a cyan coupler. A color diffusion transfer system using a silver halide emulsion layer sensitive to the entire range of visible light and a silver halide emulsion layer is disclosed, for example, in U.S. Pat.
No. 0-2538.

In the photographic system described above, the light transmitting regions of each color, which form the minute shapes of the screen, are formed by oil droplets, and couplers are used, which form dyes through a coupling reaction with the oxidized form of a phenylenediamine developing agent. ing.

In such photographic systems, the above screen layer is
The photosensitive layer and the image-receiving layer are brought into contact with each other during development with an alkaline developer such as a phenylenediamine developer. The coupler in a stacked relationship with undeveloped silver halide is diffused into the image-receiving layer, and a dye is formed on the image-receiving layer in the presence of a phenylenediamine developer and an oxidizing agent.

In the above photographic system, although the processing time until the coupler is transferred to the image-receiving layer is shortened, the overall processing time is not shortened because oxidative coupling must be performed on the image-receiving layer. At the same time, in the above system, the minute light transmitting areas of the screen are formed by oil droplets as described above, so it is difficult to fill them densely so that they do not overlap each other, and when the total area of the minute areas becomes large, One layer of the binder becomes too soft and easily peels off.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a color image forming method using a diffusion transfer method, which requires a short processing time and provides a color image with excellent image quality.

Structure of the Invention As a result of various studies to address the above-mentioned problems, the inventors of the present invention have developed at least three regions: a region that primarily transmits only blue light, a region that primarily transmits only green light, and a region that primarily transmits only red light. The three regions are formed into a mosaic or stripe pattern, and at least a part of each region contains a dye-forming substance capable of releasing a dye or a dye precursor that produces a different color tone during the development process, and the three regions are arranged in a mosaic or stripe pattern. A photosensitive element having, on a support, a layer formed in a pattern arranged in a pattern and a photosensitive silver halide emulsion layer of at least 1M was exposed to light through the layer formed in a mosaic pattern or a stripe pattern. Thereafter, the photosensitive element is developed by contacting it with an alkaline processing solution in the presence of a silver halide developer,
A color image forming method for forming a color image on an image-receiving element by creating a distribution of a diffusible dye or a diffusible dye precursor corresponding to imagewise exposure and diffusing at least a portion of the image-wise distribution onto the image-receiving element. The pigment-forming substance contained in the region that mainly transmits only blue light, the pigment-forming substance contained in the region that mainly transmits only green light, and the pigment contained in the region that mainly transmits only red light. The forming substance is a compound capable of releasing a dye or a dye precursor of a yellow dye, a magenta dye, or a cyan dye, respectively, and the dye forming substance is a compound capable of releasing a dye or dye precursor of a yellow dye, a magenta dye, and a cyan dye, respectively, and a different dye or dye precursor is emitted in a region where the dye forming substance transmits different color light. It has now been found that the object can be achieved by a method of color imaging in which the body is releasably contained.

The present invention will be explained in more detail below.

The photosensitive element used in the color image forming method of the present invention has a region containing a dye-forming substance capable of releasing dyes or dye precursors of different tones during the development process, and a region that transmits mainly blue light, and a region that transmits mainly only green light. A layer formed by arranging three regions in a mosaic or stripe pattern, a region that transmits red light and a region that mainly transmits only red light, and at least one silver halide emulsion layer on a support. It consists of:

In the above-mentioned invention, "1 area that primarily transmits only blue light, area that primarily transmits only green light, and area that primarily transmits only red light" refers to, for example, the areas of blue, green, and red used for three-color separation. It means three minute areas that have the function of dividing the visible spectral range into three wavelength ranges like a filter of three primary colors, and further in the present invention,
The feature is that these three small areas are used as a layer formed by arranging them in a mosaic shape or a stripe shape. It will be better understood because it is

In this specification, the layer formed in the above mosaic or stripe pattern will be referred to as a single mosaic filter layer.

Hereinafter, the color image forming method of the present invention will be explained in more detail with reference to the drawings.

FIGS. 1 and 2 are cross-sectional views showing an example of the structure of a photosensitive element used in the color image forming method of the present invention.

FIG. 1 is a sectional view showing a mosaic filter layer 2 according to the present invention provided on a support (for example, a transparent base) l. The mosaic filter layer 2, like a normal mosaic filter, has filter dyes selected and mixed therein so that each minute element has the spectral transmission characteristics of Blue 03), Green 0, and Red. For example, for Blue 〇, blue dye may be used alone or cyan and magenta dyes may be combined. For Green 0, a green dye may be used alone or a combination of yellow and cyan dyes may be used. For red (2), the dye (C) may be used alone or a combination of magenta and yellow dyes may be used.

Also, the mosaic filter used in the present invention is blue.
, Green 0, and Red ■, in addition to these filter dyes, for example, yellow, magenta, and cyan (Q) pigment-forming substances are mixed. A dye and a magenta dye are combined to form a blue filter, a yellow dye and a cyan dye are combined to form a green filter, and a magenta dye and a yellow dye are combined to form a green filter. One of the dyes formed may be a pigment-forming substance.

In Figure 1 (8), there is a magenta pigment-forming substance in the blue element, a cyan pigment-forming substance in the green element, and a yellow pigment-forming substance in the element C. is contained. Although FIG. 1 (2) shows an example in which a dye-forming substance is mixed in the filter dye layer, the filter dye layer and the dye-forming substance layer are formed as separate layers adjacent to each other. This is also within the scope of the present invention. However, it is necessary that the mosaic or stripes of the filter dye completely correspond to the mosaic or stripes of the dye-forming substance.

This is shown in Figure 1 CB). In the figure, 2' is a layer containing a filter dye, and 1 is correspondingly formed waste containing a dye-forming substance.

FIG. 2 shows a state in which a photosensitive silver halide emulsion layer 3 (panchromatically sensitized) is coated on the mosaic 7 filter layer 2 shown in FIG.
FIG. 3 shows the state in which blue light is exposed through the support l (base surface). Next, the state in which this was developed with an alkaline processing solution is shown in FIG. 4. Only the portion corresponding to filter element 0 was developed, and the filter layer was
This shows a state in which a diffusible dye (magenta dye in this case) is transferred to the image-receiving layer 4 from the dye-forming substance contained therein.

The above is about the case where blue 〇 exposure is given, but
Similarly, when exposed to green 0, the diffusive dye (cyan dye in this case) released from the dye-forming substance contained in the green filter layer is transferred to the image-receiving layer, and when exposed to red ■ Then, a yellow diffusible dye is transferred from the dye-forming material contained in the first filter layer into the image-receiving layer, giving cyan and yellow dye images, respectively. In addition, a dye formation that emits a yellow magnified 11E dye corresponding to one blue filter layer, a magenta diffusive dye corresponding to one green filter layer, and a cyan diffusive dye corresponding to one green filter layer. If a substance is contained and the color is developed on the image-receiving layer, color recording can be performed by writing in ordinary blue, green, and red.

The mosaic filter layer 2 may be provided on the silver halide photosensitive layer 3 as shown in FIG.
Exposure may be performed from the opposite side to that shown in the figure. In the present invention, blue is a wavelength of light spectrum of approximately 400 to 500 nm, and green is a wavelength of approximately 500 to 60 nm.
0 nm, L/, do (red) is 600-700 nm
, infrared refers to 700 nm or more.

Further, in the present invention, the filter dye used in one layer of the mosaic filter can be widely used as long as it does not diffuse during the development process.

The photographic element used in the color image forming method of the present invention has been described above with reference to the drawings, and as the structure of the sheep is clear, the photographic element according to the present invention is composed of a photosensitive element and an image receiving element. As described above, each of the photosensitive elements has at least three fine areas that transmit blue light, green light, and red light, and dyes or dye precursors of different tones are formed on at least a portion of each of these areas by development. It consists of a mosaic filter layer containing a color-forming substance capable of emitting color and having the above-mentioned regions arranged and formed in a mosaic or striped pattern, and a photosensitive silver halide layer. In addition, after the photosensitive element is exposed, the image receiving element is brought into contact with an alkaline processing solution in the presence of a developer, and during the development process, the dye or dye precursor that diffuses from the photosensitive element is physically or chemically removed. This layer has the function of adsorption.

According to the present invention, the image receiving element may be integrated with the photosensitive element during exposure, or may be brought into contact with the photosensitive element during development after exposure. Further, after the color image is formed on the image-receiving element, the image-receiving element may be separated from the photosensitive element or may be used while being integrated with the photosensitive element.

In the present invention, at least three types of pigment-forming substances are used as described above, but in the present invention, as long as the difference in the maximum absorption wavelength of the pigments produced is within 50 nm, even if the pigments have different structures, they are of the same type. It is regarded as a pigment-forming substance. The dye-forming substances preferably used in the present invention are three types: a dye-forming substance that forms a yellow image, a dye-forming substance that forms a magenta image, and a dye-forming substance that forms a cyan image. These different types of pigment-forming substances are contained in mutually different colored light transmitting regions arranged in a mosaic or striped pattern.

In the present invention, two or more pigment-forming substances of the same type can be used in combination even if they have different structures.

The colored light transmitting regions arranged in stripes or mosaics may be arranged in any manner, for example, as described in U.S. Pat. Nos. 3.226.307 and 3.728. The random arrangement described in No. 6, No. 4.007.044, etc. may be used, or the random arrangement described in Technical Report of the Television Television Society, Vol. 5, pp. 556, 609, and Vol. 6, pp. 654, etc. It may be a regular arrangement with a description. Particularly preferred is a shape with no gaps that has the highest density, such as a rectangular or hexagonal arrangement.

FIG. 6 shows a specific example of the arrangement of the colored light transmitting regions. FIG. 6 shows an example of a so-called striped filter, and FIG. An example of a single layer structure is shown. In the figure, B indicates a blue filter element, G indicates a green filter element, and R indicates a red filter element.

In the color image forming method of the present invention C, since the diffusible dye or dye precursor produced in the development process is subtractively mixed and an image is formed while diffusing into the image receiving layer of the image receiving element, the dye forming substance It is preferable that the region containing .

Therefore, in the figure, the size of each filter element is such that at least the width l of the element is between lμ and 500μ, particularly between 5μ and 100μ.
It is preferable that it has a width of . Therefore, if necessary, these mosaic filters can be made so small that it is impossible to distinguish individual filter elements even when observed with the naked eye. Well-known additive primary color multicolor filter arrays in metering, such as autochrome plates used in Lumiere Color, Agefer color plates, color plates with inlay colors, etc., or color plates such as those used in Vola Vision. It can be made using the method used to make Strathaff filters and the like. These methods include, for example, U.S. Patent No. 1.003.72.
No. 0, No. 2.681.857, No. 3.284.2
08 specifications, Japanese Patent Publication No. 52-17375, 54-
13147, JP-A-49-46642, etc., as well as JP-A-56-500272, JP-A-57
-104139, 57-104140, 57-
As disclosed in JP 11554015540, examples include a method of forming each filter element in a microcell array provided on a support.

As the binder for the filter layer formed in a mosaic or strife shape according to the present invention, for example, hydrophilic binders widely used in photographic light-sensitive materials, specifically gelatin, gelatin derivatives, polyvinyl alcohol, casein, gelatin, etc. Examples include polymer grafted products of.

The support for the photosensitive element used in the present invention is preferably transparent and carries a lenticular lens LS on the back surface on which the photosensitive element is coated, as shown in FIG. The lenticular lens LS is advantageous when dividing the dye-forming substance into different colored light transmitting regions in a striped manner, as will be described in Examples below.

The dye-forming substance used in the color image forming method of the present invention is a compound that forms an image-wise distribution of a diffusible dye or a dye precursor upon development of imagewise-exposed photosensitive silver halide under alkaline conditions. It is good if it exists and is not particularly limited.

The distribution may be a negative image or a positive image with respect to the exposed imagewise distribution. In the color image forming method of the present invention, a particularly preferred dye-forming substance is a diffusible dye or a diffusible dye precursor that is oxidized by an oxidized form of a silver halide developer or a compound oxidized by an oxidized form of a silver halide developer. oxidation with oxidants of silver halide developing agents does not release diffusible dyes or diffusible dye precursors. Examples include compounds, dye developers, and the like.

The term "dye precursor" as used herein refers to a substance that undergoes a chemical change during a diffusion process or on an image-receiving layer, or exhibits a hue different from the hue immediately after being released due to a change in physical conditions. Examples of compounds that release dyes by alkaline hydrolysis of the above oxidized compounds include those described in the following publications. That is, U.S. Patent No. 4.053.3
No. 12, No. 4゜055, No. 428, No. 4.076,
No. 529, No. 4.152.153, No. 4.135
．． No. 929, JP-A-53-149328, JP-A No. 51-1
No. 04343, No. 53-46730, No. 54-130
No. 122, No. 53-3819, Patent Application No. 54-8912
No. 8, No. 54-90806, No. 54-91187, etc. Among these, those that emit yellow dye include U.S. Pat.
No. 49328, 51. -114930, Japanese Patent Application No. 148237-1983, Research Disclosure 1
7630 (1978), 16475 (1977)
U.S. Pat. No. 3.954.476 and U.S. Pat. No. 3.931.
No. 144, No. 3.932゜308, JP-A-53-2
No. 3628, No. 52-106727, No. 54-650
No. 34, No. 54-161332, No. 55-4028, No. 55-36804, Japanese Patent Application No. 54-149777, No. 54-146655, No. 54-42848,
West German Patent Application (OLS) No. 2.847.371, etc., and those that emit cyan dye include U.S. Patent Nos. 3.942.987, 3.929.760, and 4.013. .635, JP-A-51-10992
No. 8, No. 53-149328, No. 52-8827,
There are Japanese Patent Application No. 53-143323, Japanese Patent Application No. 53-47823, and Japanese Patent Application No. 146654-1983.

N, particularly as described in U.S. Pat. No. 4,135,929;
, a sulfonamide phenol having a ballast group consisting of an N-disubstituted carbamoyl group, a dye-releasing redox compound (DRR compound) having a sulfonamide phenol as a redox center, and a DRR compound represented by the following general formula [I] are particularly preferably used. .

General formula [I] In the formula, ('ol represents a dye or a dye precursor, and examples of the dye include azo dyes, azomethine dyes, indoaniline dyes, indophenol dyes, anthraquinone dyes, triphenylmethane dyes, and indigo dyes. Examples of dye precursors include known Roif dyes and those that give dyes by hydrolysis, and these are described in Japanese Patent Application Laid-open No. 55-33.
No. 141, No. 55-33142, No. 53-35533
No. 55-53329, No. 48-+258t8, U.S. Patent Nos. 3.222.196 and 3.30.
No. 7.947, etc.

In order to avoid being diffused or washed out as is by the alkali used during the processing of the photosensitive element, a balaneto group that substantially prevents diffusion or washing is required, but Ba1l is an alkyl acyl group. In the amido group, arylacylamide group, succinimide group and phthalimide group, R+ represents a halogen atom, an alkyl group having 1 to 3 carbon atoms, or an alkoxy group.

The alkyl group of the alkylacylamide group represented by 13all represents a linear or branched alkyl group having 12 to 20 carbon atoms, and the aryl group of the arylacylamide group represents an alkyl group or alkoxy group having 5 to 20 carbon atoms. , an alkyl acylamido group, or an aryl group substituted with an alkyl sulfonamide group.

Further, it is preferable that each of the succiimide group and the phthalimide group is substituted with an alkyl group, alkoxy group, alkylacylamide group, or alkylsulfonamide group having 5 to 20 carbon atoms.

R1 represents a group selected from a tert-butyl group, a tert-amyl group, and a 7eth-alkyl group. R7 is unsubstituted or substituted with a group selected from the group consisting of a halogen atom, an alkyl group or alkoxy group having 1 to 2 carbon atoms, an acetylamide group, a methylsulfonamide group, a nitro group, a carboxyl group, a sulfo group, and a methylsulfo group. A phenyl group is preferred.

m represents an integer from θ to 3.

Examples of dye-forming substances represented by the above general formula suitable for the color image forming method of the present invention are shown below.
e θ OO ■ 0 @ ■ ■ ■ ■ 0 o where a = 0 0 0 e.

In addition, redox compounds that release dyes when the compound that has not undergone oxidation undergoes ring closure include those described in the publications listed below.

That is, U.S. Patent No. 4.139.379, U.S. Pat.
980, No. 479, West German Patent Application (OLS) 2.4
It is described in No. 02.900, No. 2.448.811, etc. Further, as the above-mentioned dye developers preferably used in the present invention, there are those described in the following publications.

That is, U.S. Patent No. 3.255.001;
320, 063, 2.992.106, 3
．． 297.441, 3.134.762, 3.236.643, 3.134, 765, 3.134.764, 3.134.672,
3.134.765, 3.183.089, 3.135, 734, 3.135.604
No. 3.173.906, No. 3.222.16
No. 9, No. 3.183.090, No. 3,201, 3
No. 84, No. 3.246.955, No. 3.208.
No. 991, No. 3.142.565, No. 2.983
．． No. 605, No. 3,047, No. 386, No. 3.07
6,820, 3.173.929, 3.2
30.083, etc., and examples thereof are specifically shown below.

The coating amount of the dye-forming substance used in the invention as listed above is 1X10-5 to IX10-' mol/ml, preferably 2x10 to 2x10 mol/ml.

The dye-forming substance used in the present invention can be dispersed in a hydrophilic comide carrier by various methods depending on the type of compound. For example, a compound having a dissociable group such as a sulfo group or a carboxyl group can be dissolved in water or an alkaline aqueous solution and then added to the hydrophilic colloid solution. A solution obtained by dissolving a pigment-forming substance that is easily soluble in an aqueous medium but easily soluble in an organic solvent is added to the hydrophilic colloid solution and dispersed into fine particles by stirring. Examples include ethyl acetate, tetrahydrofuran, methyl ethyl ketone, cyclohexanone, β-
Examples include butoxy-β-ethoxypectyl acetate, dimethylformamide, dimethyl sulfoxide, 2-methoxyethanol, and tri-n-butyl phthalate. Among these dispersion solvents, those with relatively low vapor pressures are either volatilized during drying of the photographic layer, or used in U.S. Pat.
It can also be volatilized by methods such as those described in No. 22,027 and No. 2.801.171. Among these dispersion solvents, those that are easily soluble in water are disclosed in U.S. Patent No. 2,94.
9,360 and 3.396.027. In order to stabilize the dispersion of the dye-forming substance and to facilitate the dye image formation process, it is advantageous to incorporate it with the dye-forming substance in the photographic element in a solvent that is substantially insoluble in water and has a boiling point above 200° C. at normal pressure. It is. Suitable high-boiling solvents for this purpose include triglycerides of higher fatty acids, aliphatic esters such as di-octyl adipate, phthalate esters such as di-n-butyl phthalate, tri-talesyl phosphate-F, etc. Examples include phosphoric acid esters such as n-hexylphosphonate, amides such as N,N-diethyl laurylamide, and hydroxy compounds such as 2,4-di-n-amylphenol. Additionally, it is advantageous to incorporate a philophilic polymer with the dye-forming material into the photographic element to stabilize the dispersion of the dye-forming material and facilitate the dye image formation process.

Philic polymers suitable for this purpose include shellac; phenol-formaldehyde condensate; poly-n-
Butyl acrylate; a copolymer of n-butyl acrylate and acrylic acid; n-butyl acrylate, a copolymer of styrene and methacramide, and the like. These polymers may be dissolved in an organic solution together with a dye-forming substance and then dispersed in a hydrophilic colloid, or a hydrophilic colloid dispersion of the dye-forming substance may be mixed with a hydrovine of the polymer prepared by means such as emulsion polymerization. May be added. Dispersion of dye-releasing redox compounds is generally achieved very effectively under high shear forces. For example, high-speed rotating mixer, colloid mill, high-pressure milk homogenizer, British Patent No. 1.304
．． The high-pressure homogenizer, ultrasonic emulsifier, etc. disclosed in No. 264 are useful. Dispersion of the dye-forming substances is greatly aided by the use of surfactants as emulsion aids.

Surfactants useful in dispersing the pigment-forming substances used in the present invention include sodium triinpropylnaphthalene sulfonate, sodium dinonylnaphthalene sulfonate, sodium p-dodecylbenzenesulfonate, and dioctyl sulfosuccinate.・There are anionic surfactants such as sodium salt, sodium cetyl sulfate salt, and anionic surfactants disclosed in Japanese Patent Publication No. 39-4293, and the combination of these anionic surfactants and higher fatty acid esters of anhydrohexitol is disclosed in U.S. Patent No. 3. It shows particularly good emulsifying ability as disclosed in No. 676, 141.

The photosensitive silver halide emulsion layer used in the present invention only needs to be sensitive to the monochromatic light used for exposure, and the layer may be composed of two or more layers having different sensitivities. Good too. The silver halide used in the layer is, for example, silver chloride, silver bromide, silver iodide or a mixture thereof, such as silver chlorobromide. The binder for the silver halide emulsion layer may be the same as the hydrophilic binder used in the single layer of the filter. These silver halide emulsion layers contain active gelatin, sulfur sensitizers such as allylthiocarbamide, thiourea, and cystine, selenium sensitizers, and noble metal sensitizers such as gold sensitizers, ruthenium, rhodium, and iridium. Chemical sensitization can be carried out using sensitizers such as, alone or in combination as appropriate.

Furthermore, the silver halide emulsion layer used in the present invention may be spectrally sensitized to a wide wavelength range. Various sensitizing dyes are used for this purpose, and representative dyes include cyanine, merocyanine, trinuclear or tetranuclear cyanine, styryl, hemicyanine, oxonol, hemioxonol, and the like. Preferred cyanine dyes include those having a basic nucleus such as thiazoline, oxazoline, viroline, pyridine, oxazole, thiazole, selenazole, and imidazole, such as an alkyl group, an alkylene group, a hydroxyalkyl group, a sulfoargyl group, It may have a carboxyalkyl group, an aminoalkyl group, or an enamine group capable of forming a fused carbocyclic or heterocyclic ring. Further, it may be symmetrical or asymmetrical, and may have an alkyl group, -yenyl group, enamine group, or a single heterocyclic substituent on the methine chain or polymethine chain.

In addition to the above-mentioned basic nuclei, merocyanine pigments have acidic nuclei such as thiohydantoin nuclei, rhodanine nuclei, oxazolidinedione nuclei, thiazolidinedione nuclei, barbylic acid nuclei, thiasolithion nuclei, malononitrile nuclei, and pyrazolone nuclei. Good too. These acidic nuclei may be further substituted with an alkyl group, an alkylene group, a phenyl group, a carboxyalkyl group, a sulfoalkyl group, a hydroxyalkyl group, an alkoxyalkyl group, an alkylamino group or a heterocyclic nucleus. If necessary, these dyes may be used in combination. Furthermore, ascorbic acid derivatives,
Azaindene, cadmium salts, organic sulfonic acids, etc. For example, U.S. Patent Nos. 2.933.390 and 2.937.0.
In addition, this silver halide emulsion layer can be used in combination with supersensitizing additives that do not absorb visible light, such as those described in No. 89. It can be stabilized with a class benzothiazolium compound, zinc or cadmium compound, and can also contain a quaternary ammonium salt type or polyethylene glyconyl type sensitizing compound. and also contain suitable gelatin plasticizers such as glycerin, dihydroxy alkanes such as 3-bentanediol, esters of ethylene bisglycolic acid, bis-ethoxydiethylene glycol succinate, amides of acrylic acids, latex, etc. In addition, formaldehyde, halogen-substituted fatty acids such as mucostomic acid, compounds with acid anhydride groups, dicarboxylic acid chloride, vinylester of methanesulfonic acid, and aldehyde groups separated by divalent or trivalent carbon atoms. Various photographic additives can be included, such as gelatin hardeners such as sodium bisulfite derivatives of dialdehydes, or spreading agents such as saponins, or coating aids such as sulfo-succinates. Furthermore, various additives commonly used in photography, such as antifoggants and ultraviolet absorbers, can also be included, if necessary.

In the present invention, various silver halide emulsions can be used, and when a negative silver halide emulsion is used,
A negative color diffusion image can be obtained. Positive color diffusion transfer images can be obtained by various methods.

In the present invention, the photosensitive element may be provided with various auxiliary layers; for example, the mordant layer may also contain additives such as photofading inhibitors, optical brighteners, and ultraviolet absorbers. .

As the photofading inhibitor, known ones such as Tsuchichi can be used, but 2.6-1-butyl-p-cresol, 2.
．． 2'-methylenebis(4-methyl-6-1-butyl-
phenol), 4,4'-thiobis(3-methyl-6-
Specific examples include t-butyl-phenol).

In addition, as ultraviolet absorbers, 2-(3',5'-ditertiaryamyl-27-hydroxyphenyl)benzotriazole, 2-(2'-hydroxy-3/, S/-ditertiarybutylphenyl>5-chloro Benzotriazole, 2-(3', 5'-ditertiarybutyl-2
-hydroxyphenyl)benzotriazole, 2-(2
'-hydroxy-57-methylphenyl)benzotriazole, 2-(hydroxy-5-tert-butylphenyl)benzotriazole, 2-hydroxy-4-hatoxybenzophenone, 2゜2'-dihydroxy-4-
Methoxybenzophenone, 2-hydroxy-4-methoxy-2-carboxybenzophenone, 2-hydroxy-
4-n-octoxybenzophenone, 2,4-dihydroxybenzophenone, 2-ethylhexyl-2-cyano-3,3'-diphenylacrylate, p-octylphenylsalicyle), 2,4-ditertiarybutylphenyl- Various known compounds such as 3,5-ditertiarybutyl-4-hydroxybenzoate can be used.

As the optical brightener, various known compounds such as stilbenes, coumarins, carbostyryls, diphenylvirazolines, naphthalimides and arylazolyls are used. As a specific example, w old tefluo
rB, whitephore PCN (Sumiman Chemical), Hakkol PY-1800, Hakkol PY-20
00, PY-B (both Showa Kagaku), Kaya
eyeght13. 08 (Nippon Kayaku, Highply) 10
01 (Dainichiseika), Uvitex CB (C4ba
-Geigy) and Mikephore ETM (Mitsui Toatsu).

The image-receiving element according to the invention may be integrated with the photosensitive element or may be placed on a separate support adapted to be superimposed on the photosensitive element after exposure.

The image-receiving layer of the image-receiving element used in the present invention can be any material, so long as the material mordantes or otherwise fixes the dyes that diffuse into the layer. The particular material chosen will, of course, depend on the dye to be mordanted, but generally polymeric mordants can be used.

These polymer mordants include polymers containing 7 secondary and tertiary amine groups, polymers having a nitrogen-containing heterocyclic moiety, polymers containing these quaternary cation groups, etc., and have a molecular weight of 5.0.
00~200.000, Special Niio, 000~50.0
00.

For example, U.S. Patent Nos. 2.548.564 and 2.48.
4.430, 3.148.061, 3.7
Vinylpyridine polymers and vinylpyridinium cationic polymers disclosed in Patent No. 56.814, etc.; polymers containing seven dialkylamide groups disclosed in Patent No. 2, 675.316; Patent No. 2.882. Aminoguanidine derivatives disclosed in Specification No. 156; No. 3.6
No. 25.694, No. 3.859.096, No. 4.
No. 128.538, British Patent No. 1.277, 453, and other polymeric mordants capable of crosslinking with gelatin; US Pat. No. 3.958.995, British Patent No. 2.
Aqueous sol-type mordant disclosed in No. 721.852, No. 2.798.063, etc.; No. 3.898.
Water-insoluble mordant disclosed in No. 088; and also No. 3.709.690, No. 3,788, 855, No. 3.642.482, No. 3.488.706
No. 3.557.066, No. 3.271.14
No. 7, No. 3,271, No. 148, JP-A-50-713
No. 32, No. 53-30328, No. 52-155528
No. 53-125, No. 53-1024, No. 54-
No. 74430, No. 54-124726, No. 55-22
Examples include mordants disclosed in No. 766, No. 55-142339, and publications.

The use of p) a pHH value lowering layer containing a T value lowering substance in the image receiving element according to the invention can increase the stability of the transferred image.

Usually, the I)H value lowering substance has the function of lowering the PH value of the image receiving layer from about 13 or 14 to at least 11, preferably from 5 to 8, during a short period of time after swelling. For example, polymeric acids as disclosed in U.S. Pat. No. 3,862.819 or U.S. Pat. No. 2,584.03.
Good results can be obtained using solid acids or metal salts such as those disclosed in No. 0, such as zinc acetate, zinc sulfate, magnesium acetate, etc. Such pHH value lowering substances lower the 1)H value of the image-receiving layer after development to terminate development and essentially reduce subsequent dye transfer, thus stabilizing the dye image.

In embodiments of the invention, an inert timing or spacer layer may be used adjacent to the value reduction layer (p) above. Such an inert layer may be When alkali diffuses into the interior of the above-mentioned inert spacing forming layer, the pH value decreases as an effect of its proportion [temporally adjusted or controlled].

In the present invention, when the image receiving element is integrated with the photosensitive element, a cover sheet is disposed on the opposite side of the photosensitive layer of the photosensitive element from the image receiving element, and this cover sheet and the photosensitive layer An alkaline treatment composition is disposed between the layers.

A preferred cover sheet comprises a support and supported thereon I) an H value reducing layer and at least one timing layer (
(sometimes referred to as a "single spacer layer" or "six-in-one spacer layer").

Suitable materials for use in the neutralization layer and timing layer are described in Research Disclosure, Yar, Mo 1.1.
Section 23.12331, July 1974 and Vol.
135°13525, July 1975.

In the present invention, the silver halide developer used to develop the photosensitive element can be contained in an alkaline processing solution or in any layer of the photosensitive element or image-receiving element. It is also possible to act on the silver halide emulsion only by supplying the alkaline processing liquid.

Examples of the vine silver halide developer used in the present invention are as follows.

Hydroquinones, aminophenols (e.g. N-
methylaminophenol), 3-bilane IJ dinones (e.g. l-7enyl-3-pyrazolidian, l-7
enyl-4,4-dimethyl-3-pyrazolidinone, 4-
Hydroxymethyl-4-methyl-■-phenyl-3-pyrazolidinone, 4-hydroxymethyl-4-methyl-1
-tolyl-3-pyrasolidinone), phenylenediamines (e.g., t!;j,N,N-diethyl-p-7enylenediamine, 3-methyl-N,N-diethyl-p-phenylenediamine, 3-methoxy -N-ethoxy-p-phenylenediamine), reductones, etc. Among those listed here, black and white developers are particularly preferred, as they generally have properties that reduce stain formation in the image receiving layer (mordant layer).

Preferably, the silver halide developer for inclusion in the light-sensitive or image-receiving element is a precursor as described in, for example, JP-A-55-53330, particularly British Patent No. 2.056°. It is desirable that the silver halide developer is stabilized with a metal salt or the like as described in No. 101.

The processing composition used in the present invention is a liquid composition containing processing components necessary for developing a silver halide emulsion and forming a diffusion transfer dye image, and the main solvent is water, and methanol is also used. may also contain hydrophilic solvents such as methyl cellosolve. The processing composition maintains the pH necessary to cause development of the emulsion layer and removes acids generated during the development and dye image formation processes (e.g., hydrohalic acids such as hydrobromic acid, carboxylic acids such as acetic acid). Contains a sufficient amount of alkali to neutralize acids, etc.). Examples of alkalis include lithium hydroxide, sodium hydroxide, potassium hydroxide 1, calcium hydrate dispersion, tetramethylammonium hydroxide, sodium carbonate, trisodium phosphate, diethylamine, and other alkali metal or alkaline earth metal salts; Amines are used, preferably containing a concentration of caustic alkali to have a pH of about 12 or higher, especially a pH of 14 or higher at room temperature.

When the silver halide developer is initially incorporated into the photographic element, the remaining components normally present in the developer (e.g., water, I) activators to adjust the H value, and preservatives) can be incorporated into the photographic element. This makes it possible to form what is commonly called an activator solution. The activator solution is identical in composition to the silver halide developer solution except for the absence of silver halide developer, and is used when incorporating the silver halide developer into the photographic element. do. In the present invention, references hereinafter to developer compositions are intended to include both silver halide developer solutions and activator solutions.

The processing composition may also contain light-absorbing substances such as carbon black and pH indicator dyes to prevent fogging of the silver halide emulsion by external light during processing, and U.S. Pat.
．． It may be advantageous in some cases to contain desensitizers such as those described in No. 579.333. Furthermore, a development inhibitor such as benzotriazole can be added to the processing liquid composition.

In addition, the present alkaline processing composition may contain substances that promote development or dye diffusion, such as benzyl alcohol, glyfurs and/or amino alcohols described in JP-A-52-127233, and JP-A-55-1989. -745
Ibi compounds such as saturated aliphatic alcohols or saturated alicyclic alcohols described in No. 41 may also be included. In particular, it is preferable to contain fatty acids and aliphatic primary amines such as 11-aminoundecanoic acid and/or 6-aminohexanoic acid described in JP-A-53-81119.

In addition, for improving the immersion properties of one component of the processing agent, for example, Research Disclosure, 19565゜19566
A buffering agent described in may be added.

In a preferred embodiment of the invention, for example, by passing the exposed photosensitive element through a container of processing solution,
The processing solution is absorbed into the exposed photosensitive element from the non-viscous processing solution. Other techniques can also be used that allow the required small amounts of processing solution to be applied virtually uniformly over the surface of the negative, for example as described in U.S. Pat. No. 3.194.13.
A liquid application device with a capillary gap through which the processing solution passes, as disclosed in No. 8, may be used. The required amount of processing solution is applied from the viscous processing composition to the sensitizer, provided that there is no layer of polymer or processing composition between the light-sensitive element and the image-receiving element when they are later superimposed. It is also possible to absorb it into the elements.

However, it is preferred to use non-viscous processing solutions, as this allows the use of very simple processing equipment and handling techniques. Although the technique for delivering the processing solution to the photosensitive element is specialized, the image receiving element is kept dry until it comes into "front-to-front contact with the soaked photosensitive element, so that the image receiving element is It is necessarily wetted only with the processing solution extracted from the photosensitive element.

The expression "front-to-front contact" is used in the present invention to indicate that there is no layer of processing composition between the superposed photosensitive element and image receiving element.

The expressions "non-viscous processing solution" and "non-viscous processing composition" as used in the present invention are intended to refer to a processing solution or composition having a viscosity substantially similar to water. be. Preferably, toocp at ℃
More preferably, the viscosity is 10 cp or less. Non-viscous processing compositions do not contain polymeric film-forming substances or other viscosity-imparting components such as those used in commercially practiced color diffusion transfer processes. Generally, non-viscous processing solutions suitable for use in the present invention are obtained from processing compositions of the type described in the prior literature by simply removing the film-forming agent. In some cases, such non-viscous compositions deposit a partially solidified layer of processing composition into the exposed light-sensitive element and image-receiving element when the element is removed from superimposed relation. It is also possible to include a reagent whose primary function is to facilitate adhesion to any of the above, and since this function is not utilized in the method of the present invention, such a reagent may be omitted. In some cases, the new processing techniques of the present invention allow the concentration of one or more agents in a treatment composition to be reduced compared to the concentration when the agent is used in a viscous treatment composition. It became. The particular concentration of a given agent to be used in a non-viscous treatment composition can be readily determined by one skilled in the art by performing routine concentration tests.

As previously pointed out, the non-viscous processing composition can be applied to the photosensitive element in a number of ways, such as by transferring the exposed photosensitive element to a container of the non-viscous processing composition, such as by a block or head of a porous application device. or by passing the exposed photosensitive element through a container of the non-viscous processing composition.

Methods for bringing the non-viscous processing composition into contact with the photosensitive element according to the present invention include a method of immersing it in an alkaline processing bath, a method of spraying the photosensitive element, a method of applying it by brushing, and the like. For example, U.S. Patent No. 3.103.1
No. 53, No. 3.112.685, No. 3.195.
No. 435, No. 3.626.832, No. 3.695
No. 163 discloses that after a photosensitive element is passed through a tank or container holding a treatment composition, the photosensitive element is pulled out of the container and superimposed on an image receiving element and crimped at the same time or thereafter to form front-to-front contact. In particular, U.S. Pat. No. 4,223. Preferably, processing is carried out using an image transfer processor of the type described in No. c+c+i.

Referring to the drawings, FIG. 8 shows that the exposed photosensitive element 5 is immersed in a container 7 of a non-viscous processing solution 6 for a period of time and then removed from the container and passed between pressure rollers 9 and 10 with a dry receiver element 8. This indicates that there will be front-to-front contact with this.

Pressure rollers 9 and 10 are connected to photosensitive element 5 and image receiving element 8
Since the pressure roller 9 only presses the polymer 11 made of and 10 may be of simple structure and equipment. Prior to overlaying the photosensitive element with the dry receiver element, a squeeze roll or other device may be provided to remove excess processing solution that adheres to the front and/or back surface of the photosensitive element as it is withdrawn from the processing solution 6. .

In order to ensure that the tips and side edges of the photosensitive element and the image receiving element pass between the pressure rollers 9 and 1o without misalignment, the tips of the photosensitive element and the image receiving element are shifted in advance before passing between the rollers. A processor having a device for desirably aligning the leading edges of the photosensitive element and image receiving element upon insertion into the holding roller is described in the aforementioned U.S. Pat. No. 4,223,991.

Although a support for the photosensitive element according to the present invention is not necessarily required, a support that does not undergo significant dimensional changes during development processing is suitable. As the support, plastic films such as cellulose acetate film, polystyrene film, polyester film and polycarbonate film, which are used in ordinary photographic materials, are mainly used, but paper supports can also be used. Furthermore, in order to enable development processing in a bright room, it is desirable to use a light-shielding agent such as carbon black at appropriate locations on photographic elements having various layer configurations to shield light. In this case, an optical density of about 5 to 10 is required. Appropriate light-shielding positions vary depending on the layer structure of the photographic element, but a light-shielding agent such as carbon plastic, titanium oxide, etc. is placed in the support and/or on the opposite side of the silver halide emulsion layer to an optical density of 5 to 10. It can be added as desired.

Supports for the image receiving element may also include polymeric films, wood fibers such as paper, metal sheets, sheets and foils, glass,
Ceramics, etc. can be used, and the adhesive strength, antistatic property, dimensional stability, peeling resistance, etc. of the support surface,
It has one or more subbing layers to enhance hardness, frictional properties and/or other properties.

Common useful polymeric film supports include films of cellulose nitrate and cellulose esters, such as cellulose triacetate and diacetate, polystyrene, polyamide, homo- and copolymers of vinyl chloride, poly(vinyl acetal), Polycarbonates, homo- and copolymers of olefins, such as polyethylene and polypropylene, and polyesters of dibasic aromatic carboxylic acids and dihydric alcohols, such as poly(ethylene terephthalate).

Common useful paper supports are partially acetylated or polymers of baryta and/or polyolefins, especially α-olefins having from 2 to 10 carbon atoms, e.g. It is coated with polyethylene, polypropylene, a copolymer of ethylene and hyperpylene, etc.

Particularly useful supports constituting the image-receiving element are those that provide a good background for the transferred image, and are preferably about 8
It is preferable to have a reflectance of 0% or more. Particularly preferred are polymer films containing white pigments such as Tie, kaolin, mica, barium sulfate, and zinc oxide. Further, in order to prevent the silver halide photosensitive layer from being fogged by light, the support may be subjected to an opaque treatment as described in Research Disclosure, No. 18336, for example. EXAMPLES Hereinafter, the present invention will be specifically explained with reference to Examples, but the present invention is not limited thereto.

Example 1 A filter element was manufactured based on the method for manufacturing line stripes disclosed in US Pat. No. 3,284,208.

That is, 70 ml of methanol, 1.259 ml of nitrocellulose, and 30 ml of 'n-butanol were placed on the surface (flat side) of a polyethylene terephthalenite film base that supported a cellulose acetate butyrate layer having 16 lenticular lenses per millimeter on the back surface. A subbing layer consisting of was applied. Next, on this undercoat layer, 200 d of a 10% gelatin aqueous solution, in which the following compound (compound-1) 5.9J9 was dissolved in di-n-butyl 7-tallery 59 and dispersed by the protection method as a color-forming substance, and methylene blue 2 A composition consisting of .0g OJ: and 3g of potassium dichromate was applied, and a part of the composition was cured by exposing it to ultraviolet light through a lenticular lens, and then washed with warm water at 50°C to remove the uncured part. was removed to create a first gelatin layer.

Furthermore, on the above layer, the above dye-forming substance (compound -
) was replaced with 5.0 g of Compound-2 below, methylene blue was replaced with 1.8 g of Amide Green C, 1,7, and the irradiation angle of the ultraviolet light was changed. A second gelatin layer was formed.

Next, on the above layer, the above compound-1 was added to 5.2 g of the following compound-3, and methylene blue was added to 2.1 g of Direct Red C, 1,81 and 5 g of Direct Yellow C, 1,4. Instead, a third gelatin layer was formed by performing the same operation as described above, except that the irradiation angle of the ultraviolet light was further changed.

o.

On the stripe layer thus obtained, a silver halide emulsion having the following composition was applied as a photosensitive layer for 1000 r!
A photosensitive element was obtained by coating so that the amount of silver per layer was 5.0 .ANG.

(Photosensitive layer composition) A photosensitive element having a photosensitive layer having the above composition on a stripe layer was exposed to 32C, MS through a conventional step wedge and a three-color separation filter of blue, green, and red. After exposure, the photosensitive element is immersed for a few seconds in a developer having the composition shown below, and then superimposed on an image-receiving element prepared by applying the coating composition shown below to resin-coated paper.

(Developer composition) r Potassium hydroxide 37! ! (Coating Composition) The superposed photosensitive element and image receiving element were passed between the pressure rollers of a processor having the configuration shown in FIG. was washed with 0.5% acetic acid aqueous solution and dried.

As a result of the above processing, a good Yeshi wedge image is produced on the image-receiving element diffuse-transferred from the light-sensitive element exposed through the blue filter, and a good magenta wedge image is obtained on the image-receiving element when the image is similarly exposed through the green filter. ,
In addition, a good cyan wedge image was obtained on the image receiving element when the red filter was used. Furthermore, a good black wedge image was obtained on the image receiving element which was diffuse-transferred from the light-sensitive element which was wedge-exposed without using a color filter. The minimum and maximum densities of the color images thus obtained on the receiving element are shown in Table 1 below.

(Table 1) Table 2 also shows the density of the black image obtained by white exposure with respect to blue light, green light, and red light.

(Table 2) As is clear from Table 1 above, according to the color image forming method of the present invention, a corresponding color image with a preferable density can be obtained on the image-receiving layer for each color light, and also for white light. It has also been found that a pure black image can be formed even on.

Table 2 also proves that the filter layer according to the present invention can act equally on each color of light.

Effects of the Invention According to the method of the invention, a light-sensitive element having a single layer of three-color mosaic or stripe-like filters containing dye-forming substances and, in particular, a single light-sensitive silver halide emulsion layer, is used. Transfer color images with good image quality can be obtained more quickly and with simpler operations than in the past.

[Brief explanation of drawings]

1 and 2 are cross-sectional views showing the structure of the photosensitive element according to the present invention, FIG. 3 shows the photosensitive element exposed to blue light, and FIG. The figure shows a phase diagram in which the diffusible dye is released and diffused into the image-receiving layer by the above-mentioned exposure and subsequent development. FIG. 5 is a sectional view showing another embodiment of the photosensitive element according to the present invention, and FIG. 6 is a top view showing the arrangement of the color light transmitting regions of the mosaic filter layer of the photosensitive element. FIG. 7 is a cross-sectional view showing still another embodiment of the photosensitive element, and FIG. 8 is a cross-sectional view showing the configuration of a processor for developing the photographic element according to the present invention. l...Support 2...Mosaic filter layer 2'
...Layer 2 containing filter dye...Layer 3 containing dye-donating substance...Photosensitive silver halide emulsion layer 4...Image-receiving layer agent Yoshi Kuwahara Yoshiyoshi Miki 1 Figure ζA) E3) No. 2II P3 procedure: ?I'ujJ3, r11 1. Indication of the case Patent Application No. 36228 of 1982 2. Name of the invention Color image forming method 3. Person making the amendment Relationship with the case Patent application Address: 26-2, Nishi-Shinjuku 11', Shinjuku-ku, Tokyo Name
(+27) Roku Konishi Photo Industry Co., Ltd. 4, Agent Address: 1-6 Sakura-cho, Hino-shi, Tokyo 191 Address: “Claims” column and “Detailed Description of the Invention” column of the specification subject to amendment . 7. Contents of amendment (1) The scope of claims will be amended as shown in the attached sheet. (2) The detailed description of the invention is amended as follows. 2. Claims (1) It has at least three regions: a region that mainly transmits only blue light, a region that mainly transmits only green light, and a region that mainly transmits only red light, and at least one of each region A layer containing a dye-forming substance capable of releasing a dye or a child precursor of a different color tone during the development process, and forming the above three regions in a mosaic or stripe pattern, and at least one layer. After exposing a light-sensitive element having a light-sensitive silver halide emulsion layer on a support through the mosaic or stripe-formed scrap, the light-sensitive element is exposed to light using a /N silver halide developer. It is developed by contacting it with an alkaline processing solution in the presence of A color image in which a color image is formed on an image-receiving element by diffusively transferring a portion of the image-wise distribution to the image-receiving element without producing a distribution of a diffusible dye or a diffusible dye precursor corresponding to the image-wise exposure. A forming method,
A pigment-forming substance contained in the region that primarily transmits only blue light, a pigment-forming substance contained in the region that primarily transmits only green light, and a pigment-forming substance contained in the region that primarily transmits only red light. is a compound capable of releasing a dye or a dye precursor of a yellow dye, a magenta dye, or a cyan dye, respectively (1), and in a region where the dye-forming substance transmits different color light, a different dye or dye precursor is released. A color image-forming power method characterized in that the body is contained so as to be released. (2) The color image forming method according to claim 1, wherein the photosensitive silver halide emulsion is an emulsion that is sensitive to blue light, green light, and red light. (3) The color image forming method according to claim 1(+) or (2), wherein the dye-forming substance is a dye-releasing redox compound. (4) The color image forming method according to claim tIS (1) or (2), wherein the dye-forming substance is a dye developer. (5) The silver halide developer is a compound whose oxidized form can release a dye or a dye precursor by oxidizing a dye-forming substance. Color image forming power method described in (4). (6) The image-receiving element is coated on a support separate from the photosensitive element.
The color image forming method according to item 2), item (3), item (4), or item (5). (7) The photosensitive element is supported on a support having a lenticular lens portion on the surface of the claim (1), (2), (3), ( 4
), (5) or (6).

Claims (7)

[Claims] (1) It has at least three regions: a region that mainly transmits only blue light, a region that mainly transmits only green light, and a region that mainly transmits only red light, and at least a part of each region is A layer containing a dye-forming substance capable of releasing dyes or dye precursors of different tones, and formed by arranging the above three regions in a mosaic or stripe pattern, and at least one layer of a photosensitive silver halide emulsion. After exposing a photosensitive element having a layer on a support through the mosaic or striped layer, the photosensitive element is contacted with an alkaline processing solution in the presence of a silver halide developer. development to produce a distribution of diffusible dyes or diffusible dye precursors responsive to imagewise exposure and diffusion transfer of at least a portion of the imagewise distribution to the image-receiving element to form a color image on the image-receiving element; A color image forming method, comprising: a dye-forming substance contained in a region that primarily transmits only blue light; a pigment-forming substance contained in a region that primarily transmits only green light; and a pigment-forming substance that primarily transmits only red light. In a region where the dye-forming substance contained in the region is a compound capable of releasing a dye or dye precursor of yellow dye, magenta dye, and cyan dye, respectively, and the dye-forming substance transmits light of different colors. A method for forming a color image, characterized in that different dyes or dye precursors are contained so as to be released. (2) The color image forming method according to claim (1), wherein the photosensitive silver halide emulsion is an emulsion that is sensitive to blue light, green light, and red light. (3) The color image forming method according to claim (1) or (2), wherein the dye-forming substance is a dye-releasing redox compound. (4) The color image forming method according to claim (1) or (2), wherein the dye-forming substance is a dye developer. (5) Claim (3), wherein the silver halide developer is a compound whose oxidized form can release a dye or a phosphorus precursor by oxidizing a dye-forming substance; or The color image forming method according to item (4). (6) Claims (2), (3), and (4), characterized in that the image-receiving element is coated on a support separate from the photosensitive element. Or the color image forming method described in item (5). (7) Claims (2), (3), (4), and (2), wherein the photosensitive element is supported on a support having a lenticular lens portion on its surface. The color image forming method according to item 5) or item (6).