JPH0473751A - Image forming method - Google Patents

Abstract

PURPOSE:To form an image having high image quality on a card, etc., by using a silver halide photographic sensitive material with simple operations by subjecting the photographic sensitive material having a photosensitive layers contg. a hot solvent to imagewise exposing and developing, then bringing this material into tight contact with an image forming material and heating the materials, thereby transferring the image. CONSTITUTION:The photographic sensitive material has the photosensitive layer contg. a photosensitive silver halide, dye donative material, binder and hot solvent on a base. Compds., such as urine deriv. and amide deriv., which are liquid when heated to 60 to 200 deg.C and can accelerate the diffusion transfer of dyes at the time of heating are used as the hot solvent. The color developing dye formed as the image on the photosensitive layer of the photographic sensitive material after the exposing and developing is diffused and transferred to the image receiving layer of the image forming material by heat when the photosensitive layer surface of the photographic sensitive material and the image receiving layer are brought into tight contact with each other and the materials are heated. The image having the high image quality is formed on the image receiving layer in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an image forming method, and more particularly to an image forming method that uses photosensitive silver halide and is capable of forming color images.

[Background of the Invention] Color photographic materials using silver halides and image forming methods using these color photographic materials are known, for example, in "Fundamentals of Photographic Engineering - Silver Salt Photography Edition" (Japan Photographic Society Line). , Corona Publishing) and The Theory of t.
he Photographic Process (
T.H.

James fiMA (JILLAN), and in the usual case, the photosensitive layer is formed by exposing, developing, bleaching, and fixing a photographic material having a photosensitive layer containing a photosensitive silver halide and a coupler on a support. An image is formed by the dye obtained by coupling the coupler with the oxidized form of the color developing agent.

Incidentally, images obtained using silver halide photographic materials have higher image quality than those produced by other methods such as thermal photography, inkjet photography, electrophotography, etc., so in recent years they have been used as substrates for various carts, postcards, stickers, etc. The image provided above is formed using a silver halide photographic material.

These images are usually formed by pasting part or all of a photographic material on which an image has been formed onto a substrate.

However, the above method has the problem that the processing for forming the image is complicated and the thickness of the resulting cart etc. becomes large.

Furthermore, since the photographic light-sensitive material is used directly, the surface of the image is covered with a gelatin film, which poses the problem that the images will stick together if they are stacked on top of each other in high humidity conditions.

[Object of the Invention] An object of the present invention is to improve the problems of the prior art described above.

That is, an object of the present invention is to provide an image forming method that can form a high-quality image using a silver halide photographic material on a substrate such as a cart with simple operations.

A second object of the present invention relates to an image forming method that can form an image using a silver halide photographic material on a substrate such as a cart without significantly increasing the film thickness.

A third object of the present invention is to relate to an image forming method capable of forming images using a silver halide photographic material having improved storage stability under high humidity conditions.

The present invention achieves the above object by developing a photographic light-sensitive material having a light-sensitive layer containing a light-sensitive silver halide, a dye-providing substance, a binder and a heat solvent on a support with a processing solution at an image-wise exposure ratio. Afterwards, the photosensitive layer surface of the photographic light-sensitive material and the image forming material are heated in close contact with each other to transfer all or part of the dye image-wise formed on the image forming material to the image forming material. This is the formation method.

The present invention will be explained in more detail below.

-Photographic light-sensitive material- The photographic light-sensitive material of the present invention has a light-sensitive layer on a support, containing a light-sensitive silver halide, a dye-providing eJ material, a binder, and a thermal solvent.

The photosensitive silver halide includes any silver halide such as silver chloride, silver bromide, silver iodide, silver chlorobromide, silver iodobromide, and silver chloroiodide.

When rapid processing is desired, the photosensitive silver halide grains used in the present invention have a silver chloride content of 90 mol% or more, a silver bromide content of 10 mol% or less, The silver iodide content is preferably 0.5 mol% or less. More preferably, the silver bromide content is 0.1 to 2 mol%.
silver chlorobromide.

The photosensitive silver halide grains may be present alone in the photosensitive layer, or may be present in the photosensitive layer together with other photosensitive silver halide grains having different compositions. It may be used in combination with silver halide grains having a content of 90 mol % or less.

In addition, in a silver halide emulsion layer containing photosensitive silver halide grains having a silver chloride content of 90 mol% or more, silver chloride accounts for the total silver halide grains contained in the silver halide emulsion layer. The proportion of silver halide grains having a content of 90 mol% or more is 60% by weight or more, preferably 80% by weight or more.
% by weight or more.

The composition of the photosensitive silver halide grains may be uniform from the inside to the outside of the grain, or the composition between the inside and outside of the grain may be different. Also, if the composition inside and outside the grain is different, is there any particular restriction on the grain size of the photosensitive silver halide grains, which may change continuously or discontinuously?
Considering other photographic performance such as rapid processability and sensitivity, the thickness is preferably in the range of 0.2 to 1.6 μm, more preferably 0.25 to 1.2 μm.

Note that the particle size can be measured by various methods commonly used in the technical field. A typical method is Labrant's "Particle Size Analysis Method J (
A, S, T, M, Symposium on Light Microscopy, 1955, pp. 94-122) or Theory of the Photographic Process (by Mies and Shames, 3rd edition, published by Macmillan, 1966). Chapter 2).

The particle size can be measured using the projected area or approximate diameter of the particle. If the particles are of substantially uniform shape, the particle size distribution can be expressed fairly accurately as diameter or projected area.

The grain size distribution of the photosensitive silver halide grains may be polydisperse or monodisperse.

Preferably, the silver halide grains are monodisperse silver halide grains having a variation coefficient of 0.22 or less, more preferably 0.15 or less in the grain size distribution.

Here, the coefficient of variation is a coefficient indicating the breadth of the particle size distribution, and is defined by the following equation.

Here, r represents the particle size of each particle, and n represents the number thereof.

The grain size referred to here means the diameter in the case of spherical photosensitive silver halide grains, or the diameter when the projected image is converted into a circular image of the same area in the case of grains with shapes other than cubic or spherical. represents.

In the present invention, the photosensitive silver halide grains used in the emulsion may be obtained by any of the acid method, neutral method, and ammonia method. After that, you can let it grow.

The method for producing seed particles and the method for growing them may be the same or different.

Further, the method for reacting the soluble silver salt and the soluble halide salt may be a forward mixing method, a back mixing method, a simultaneous mixing method, or a combination thereof, but a simultaneous mixing method is preferable. Further, as a type of simultaneous mixing method, the pAg-controlled Todafourchet method described in Japanese Patent Application Laid-Open No. 54-48521 and the like can be used.

Furthermore, if necessary, a silver halide solvent such as thioether may be used.

The shape of the photosensitive silver halide grains used in the present invention is arbitrary.

An example of a preferable shape of photosensitive silver halide is (100
) plane is the crystal surface.

Also, U.S. Patent Nos. 4.18:1,756 and 422
No. 5.666, JP-A-55-26589, JP-A-55
-Specifications such as No. 42737, The Journal Otsu.
Photographic Science (J, Photogr,
5ci), 21. Particles having shapes such as octahedrons, dodecahedrons, and tetradecahedrons can be prepared and used by the method described in the literature such as No. 39 (197:l). Furthermore, particles having twin planes may be used.

The photosensitive silver halide grains used in the present invention may be of a single shape or may be a mixture of grains of various shapes.

In the present invention, the photosensitive silver halide grains are.

There may be particles in which a latent image is mainly formed on the surface of the particle, or there may be a particle in which a latent image is mainly formed inside the particle. Particles in which a latent image is mainly formed on the surface of the particles are preferred.

In the present invention, the photosensitive layer is chemically sensitized by a conventional method.

In other words, sulfur-containing compounds that can react with silver ions, sulfur sensitization using active gelatin, selenium sensitization using selenium compounds, reduction sensitization using reducing substances, and gold and other noble metal compounds. By adopting the noble metal sensitization method used alone or in combination,
This can be done by chemically sensitizing the photosensitive layer.

The photosensitive silver halide emulsion used in the present invention can be optically sensitized to a desired wavelength range using a sensitizing dye.

The sensitizing dyes may be used alone or in combination of two or more. Along with the sensitizing dye, the emulsion contains a dye that itself does not have a spectral sensitizing effect, or a supersensitizer, which is a compound that does not substantially absorb visible light and enhances the sensitizing effect of the sensitizing dye. Good too.

Furthermore, these sensitizing dyes can be used for purposes such as gradation adjustment and development adjustment in addition to their original spectral sensitizing effect.

Sensitizing dyes include cyanine dyes, merocyanine dyes,
Complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes, hemioxanol dyes, etc. can be used.

In the present invention, the photosensitive layer may be used during chemical ripening, at the end of chemical ripening, and/or for the purpose of preventing fog during the manufacturing process, storage, or photographic processing of the photosensitive material, or to maintain stable photographic performance. Antifoggants or stabilizers may be added before coating the silver halide emulsion after chemical ripening.

As the binder in the photosensitive layer in the present invention, any binder used in the silver halide emulsion layer can be used without any limitation.

Binders that can be used in the photosensitive material of the present invention include polyvinyl butyral, polyvinyl acetate,
Ethyl cellulose, polymethyl methacrylate, cellulose acetate butyrate, polyvinyl alcohol, polyvinyl pyrrolidone, gelatin, gelatin derivatives such as phthalated gelatin, graft polymers of gelatin and other polymers, other proteins, sugar derivatives, cellulose conductors, proteins Synthetic or natural polymeric substances such as starch, gum arabic, etc., and wood-loving colloids such as synthetic wood-loving substances such as single or copolymers, may be used alone or in combination of two or more kinds. It can be used as

The preferred amount of binder used is usually 0-05 g to 50 g per ml of support, more preferably 0.05 g to 50 g per ml of support.
It is 2g to 20g.

In addition, the binder is 0.1% per 1g of the dye-providing substance.
It is preferable to use 10 g to 10 g, more preferably 0.0 g to 10 g.
It is 2g to 5g.

The dye-providing substance used in the present invention is preferably a coupler, and couplers that form yellow, magenta and cyan dyes are used.

In the present invention, the yellow dye-forming coupler includes:
Acylacetanilide couplers are preferably used. Among these, compounds of the henzoylacetanilide and pivaloylacetanilide series are advantageous.

As the magenta dye-forming coupler, known magenta dye-forming couplers such as 5-pyrazolone couplers and 1-pyrazolone benzimidazole couplers can be used.

As the cyan dye-forming coupler, naphthol couplers and phenol couplers can be preferably used.

Specific examples of each coupler are described in Research Disclosure (120) No. 17643, No. 18716 and No. 3081]9 shown below.

[Item] [RD308119 page] [RD17
643] [RD18716] A coupler
1001 ■-D term ■C-G term maf
Ntakabura-1001■-0 item ■C~
G term cyan coupler 】001 ■-0 term
VIIC ~ G term colored coupler 1
002 ■-0 term ■G term DIR
Coupler 1001 ■-F term
■FF term AR coupler 1002■-F term other useful residues 1001■-F term releasing coupler Also, the coupler represented by the following general formula (a) is particularly effective in terms of the transferability of the formed dye. .

General formula (A) Cp-(J)-(B) In the formula, Cp is an organic group that can react (coupling reaction) with the oxidized form of the reducing agent to form a diffusible dye ( coupler residue).

J is bonded to the active site that reacts with the oxidized form of the reducing agent 2
represents a valent bonding group, and B represents a ballast group.

Here, the ballast group refers to a group that substantially prevents the dye-donating substance from diffusing during the development process, and includes a group that exhibits this effect depending on the nature of the molecule (such as a sulfo group), and a group that exhibits this effect depending on its size. (such as groups with a large number of carbon atoms), etc.

The ballast group is preferably a group having 8 or more carbon atoms, more preferably 12 or more carbon atoms, and the coupler residue represented by Cp is more preferably a group that is a polymer chain. In order to improve the diffusibility of the compound, the molecular weight thereof is preferably 700 or less, more preferably 500 or less.

Specific examples of the coupling dye-forming compound represented by the general formula (A) include JP-A-59-124339 and JP-A-59-124339;
- No. 181345, No. 5 [No. 1-29511, No. 6] -
No. 57943.

Publications such as No. 61-59336, U.S. Patent No. 4,631
, No. 251, No. 4,550,748, No. 4,656,
There are some things described in the specifications of No. 124, especially US patent rate 4.656,124, US patent rate 4.63
Preferred are the polymeric dye-providing substances described in No. 1,251 and No. 4,650,748.

These dye-providing substances may be used alone or in combination of two or more. There is no limit to the amount used, and it depends on the type of dye-providing substance, whether it is used alone or in combination of two or more.
Or a photosensitive layer or a single layer in a photographic light-sensitive material, or two
The amount may be determined depending on whether the above-mentioned layers are multilayered or not, and for example, the amount used is 0.005 to 50 g, preferably 0.1 g to 10 g per 1 rrf.

Any method can be used to incorporate the dye-providing substance used in the present invention into the photosensitive layer of the photosensitive material. Tricresyl phosphate, etc.), then emulsified and dispersed, or dissolved in an alkaline aqueous solution (e.g., 10% aqueous sodium hydroxide solution, etc.), and then dissolved in an acid (e.g.,
For example, the polymer may be neutralized with citric acid, nitric acid, etc., or solidly dispersed in an aqueous solution of an appropriate polymer (eg, gelatin, polyvinyl butyral, polyvinyl pyrrolidone, etc.).

The coupler used in the photographic light-sensitive material of the present invention is usually selected to form a dye that absorbs light in the light-sensitive spectrum of the emulsion layer for each emulsion layer in the light-sensitive layer; A yellow dye-forming coupler is used, a magenta dye-forming coupler is used in the green-sensitive emulsion layer, and a cyan dye-forming coupler is used in the red-sensitive emulsion layer.

However, depending on the purpose, the photographic light-sensitive material of the present invention may be formed in a manner different from the above-mentioned combinations.

Examples of the thermal solvent in the present invention include compounds that are liquid when heated to 6a to 200[deg.] C. and can promote diffusion transfer of the dye during such heating.

For example, these compounds have a US patent rate of 3.347
, No. 675, No. 3,667.959, (RD Research Disclosure) ND17643 (xn)
, Japanese Patent Publication No. 59-229556, 59-687:1
No. 0, No. 59-84236, No. 60-191251, No. 60-232547, No. 60-14241, No. 61-52643, No. 62-78554, No. 62-4
No. 2153, No. 62-44737, etc., U.S. Patent No. 3,438,776, No. 3,666.477, No. 3.667.959, Japanese Unexamined Patent Publication No. 1987-19525
No. 53-24829, No. 5:l-60223,
No. 58-118640, No. 58-198038980
Examples include organic compounds having polarity as described in each publication of No. 38.

Particularly useful thermal solvents in the practice of the present invention include, for example, urea derivatives (e.g., dimethylurea, diethylurea, phenylurea, etc.), amide derivatives (e.g., acetamide, benzamide, p-toluamide, etc.), sulfonamide derivatives. (e.g. benzenesulfonamide, α-
toluenesulfonamide, etc.), polyhydric alcohols (for example, 1, 6-hexanediol, 1,2-cyclohexanediol, pentaerythritol, etc.), or polyethylene glycols.

Among the above thermal solvents, water-insoluble solid thermal solvents are particularly preferably used.

As the water-insoluble solid heat solvent, the following compounds are preferred.

X represents a group of atoms forming a benzene ring, naphthalene ring or pyridine ring, and may have a substituent on the ring.

Substituents bonded to the ring include alkyl groups (e.g.
methyl group, ethyl group, isopropyl group, n-phthyl group)
, cycloalkyl groups (e.g., cyclopentyl group, cyclohexyl group, etc.), aryl groups (e.g., phenyl group, etc.), alkenyl groups (e.g., 2-propenyl group, etc.), aralkyl groups (e.g., pencil group, 2-phenethyl group, etc.) ), alkoxy groups (e.g. methoxy group, ethoxy group,
isopropoxy group, n-butoxy group, etc.), aryloxy group (e.g., phenoxy group, etc.), cyano group, acylamino group (e.g., acetylamino group, propionylamino group, etc.), alkylthio group (e.g., methylthio group, ethylthio group) , n-butylthio group, etc.), arylthio group (
For example, phenylthio group), sulfonylamino group (e.g., methanesulfonylamino group, benzenesulfonylamino group, etc.), ureido group (e.g., 3-methylureido group, 3.3-dimethylureido group, 1,3-dimethylureido group) etc.), carbamoyl groups (e.g., methylcarbamoyl group, ethylcarbamoyl group, dimethylcarbamoyl group, etc.), sulfamoyl groups (e.g., ethylsulfamoyl group, dimethylsulfamoyl group, etc.), alkoxycarbonyl groups (e.g., methoxycarbonyl group, ethoxycarbonyl group, etc.), aryloxycarbonyl group (e.g., phenylsulfonyl group, etc.), sulfonyl group (e.g., methanesulfonyl group, methanesulfonyl group, phenylsulfonyl group, etc.), acyl group (e.g., acetyl group, propanoyl group, phthyroyl group, etc.) group), amino group (methylamino group, ethylamino group, dimethylamino group, etc.).

R1 is an alkyl group (e.g. methyl group, ethyl group, n-
propyl group) or a hydrogen atom.

Further, the substituent on the ring and R1 may be further R-tested.

Specific examples of the above-mentioned water-insoluble solid thermal solvent include, for example, Japanese Patent Application Laid-open Nos. 52-136645, 62-139549, and 63-53548; 5 Japanese Patent Application No. 2-863;
There is one described in No. 227.150.

When the thermal solvent is composed of a photosensitive layer, a photosensitive silver halide emulsion layer, an intermediate layer, a protective layer, etc., it is necessary that the thermal solvent is contained in at least one of the various layers, and is also required to be contained in the receiving layer described below. It may be included in the image-receiving layer or the like of the member. In any case, a thermal solvent can be appropriately added to the various layers forming the photosensitive layer.

The preferable addition amount of the thermal solvent in the photosensitive layer is usually 10 to 500% by weight of the binder amount, more preferably 30 to 500% by weight.
It is 200% by weight.

The photosensitive layer in the present invention is basically a photographic constituent layer capable of forming a silver halide salt photograph, and various photographic additives may be added to this photosensitive layer in addition to the above-mentioned compounds. .

For example, ultraviolet absorbers, development accelerators, surfactants, water-soluble anti-irradiation dyes, film property improvers, color clouding prevention agents, dye image stabilizers, water-soluble or oil-soluble optical brighteners, background color adjustment. There are drugs etc.

Dye-forming couplers that do not need to be adsorbed on the surface of photosensitive silver halide crystals, colored couplers DIR couplers,
Among DIR compounds, image stabilizers, color cuff prevention agents, ultraviolet absorbers, optical brighteners, etc., hydrophobic compounds can be prepared using various methods such as solid dispersion method, latex dispersion method, oil-in-water emulsion dispersion method, etc. These can be appropriately selected depending on the chemical structure of the hydrophobic compound such as the coupler.

Examples of the support of the present invention include polyethylene film, cellulose acetate film, polyethylene terephthalate film, synthetic plastic film such as polyvinyl chloride, photographic base paper, printing paper, art paper,
Examples include paper supports such as cast coated paper, baryta paper, and resin coated paper, as well as composite supports obtained by coating these supports with an electron beam curable resin composition and curing the composition.

One imagewise exposure process - In the image forming method of the present invention, the photographic light-sensitive material having the above structure is first subjected to imagewise exposure.

As an exposure method for imagewise exposure of a photosensitive material, various exposure means are employed, and generally an exposure method using radiation including visible light is employed.

A latent image of silver saponide is formed by these various exposure methods. The type of light source and the exposure lid can be selected depending on the wavelength and sensitivity to which silver nitride is sensitive.

As fog light sources, tank lamps, 710 Gen lamps, xenon lamps, mercury lamps, cathode ray tube flying spots, light-emitting lights, lasers (e.g. gas lasers, YAG lasers, dye lasers, semiconductor lasers, etc.), CRT light sources, and FOT, etc. Various light sources can be used singly or in combination.

It is also possible to use a semiconductor laser and a second harmonic generating element (SHG element).

In addition, fog light may be generated using light emitted from a phosphor excited by electron beams, X-rays, γ-rays, α-rays, or the like.

The exposure time is 1/], 000, which is used in a normal camera.
It is also possible to use foggy light times of from seconds to 1 second, as well as foggy light times shorter than 1/1.000 second, such as exposures of 1710 to +/108 N using a xenon flash lamp or cathode ray tube. By using a color filter as necessary, the spectral composition of the light used for exposure can be adjusted.

The photosensitive material in the present invention may be exposed using a scanner using a laser or the like.

Development Process The photographic light-sensitive material of the present invention can be developed by performing a process known in the art.

The developing agent used in the developer in the present invention includes one of the known herbal medicines widely used in various color photographic processes.

Examples of these developing agents include aminophenol developing agents and primary aromatic amine developing agents.

These developing agents are generally used in the form of salts which are more stable than the free compounds, such as hydrochlorides or sulfates.

Additionally, these compounds generally have a developer IQ of about 0.
．． Concentrations of from 1 to about 30 g, preferably from about 1 g to about ISg per developer solution are used.

As the aminophenol developing agent, for example, 0-
Aminophenol, p-aminophenol, 5-amino-2-hydroxytoluene, 2-amino-3-hydroxytoluene, 2-hydroxy-3-amino-1,4-dimethylbenzene, etc. are included.

Particularly useful primary aromatic amine color developing agents are N, N
-Dialkyl-p-phenylenecyamine compound, and the alkyl group and phenyl group may be substituted with any substituent. Among them, particularly useful examples include N,N-diethyl-p-phenylenediamine hydrochloride, N-methyl-p-phenylenecyamine hydrochloride, N,N-diethyl-p-phenylenediamine hydrochloride,
-dimethyl-P-phenylenecyamine hydrochloride, 2-amino-5-(N-ethyl-N-dodecylamino)1-luene, N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4- Aminoaniline sulfate, N-ethyl-N-β-hydroxyethyl-4-aminoaniline, 4
-amino-3-methyl-N,N-diethylaniline, 4
-amino-N-(2-methoxyethyl)-N-ethyl-
Examples include 3-methylaniline-p-toluenesulfonate.

In addition to the above-mentioned primary aromatic amine developing agent, known developer components may be added to the developer used in the development of the photographic material in the present invention. For example, alkaline agents such as sodium hydroxide, sodium carbonate, and potassium carbonate, alkali metal sulfites, alkali metal bisulfites, alkali metal thiocyanates, alkali metal halides, pencil alcohol, water softeners, and thickening agents are optionally added. It is also possible to contain it.

The pH value of the developer solution is 1, usually above 7, most commonly about 10-13.

The developing temperature is usually 15°C or higher, generally 20°C.
~50°C.

For rapid development, it is preferable to carry out the process at 30°C or higher. In addition, in conventional processing, the development time is generally 3 to 4 minutes, or for rapid processing, the development time is generally 20 seconds to 60 minutes.
Preferably, it is carried out within a range of 3 seconds, more preferably 3 seconds.
It is in the range of 0 seconds to 50 seconds. Furthermore, it is preferable that the photographic light-sensitive material of the present invention be processed with a developer that does not contain pencil alcohol.

-Other Processes- The photographic light-sensitive material in the present invention is subjected to a bleaching process and a fixing process after development.

Bleaching treatment may be performed simultaneously with fixing treatment.

As bleaching agents, a wide variety of compounds used in the photographic developing technology can be used without limitation. Among various bleaching agents, polyvalent metal compounds such as iron (m), cobalt (■), and copper (■), especially complex salts of these polyvalent metal cations and organic acids, such as ethylenecyaminetetraacetic acid, nitrilotriacetic acid, Aminopolycarboxylic acids such as N-hydroxyethylenediaminediacetic acid, metal complex salts such as malonic acid, tartaric acid, malic acid, diglycolic acid, dithioglycolic acid, or ferricyanates, dichromates, etc. alone or as appropriate. Only combinations are used.

As the fixing agent, a soluble complexing agent that solubilizes silver halide as a complex salt is used.

Examples of the soluble complexing agent include potassium thiocyanate, ammonium thiosulfate, potassium thiocyanate, thiourea, and thioether.

After the fixing process, a washing process is usually performed.

Further, as an alternative treatment to the water washing treatment, a stabilization treatment may be performed, or both may be used in combination.

The stabilizing liquid used in the stabilization treatment includes a p++ adjuster,
It may contain a chelating agent, an anti-high agent, etc. These specific conditions can be found by referring to JP-A No. 58-]334636.

An image-forming material An image-forming material usually consists of a support coated with an image-receiving layer made of a polymer capable of receiving a dye, or even if the support itself has an image-receiving layer itself. good.

Examples of polymers forming the image-receiving layer include "Polymer Handbook, Second Edition" (edited by Joy Brandrup and E.H. Immergaut), John Williant Sands Publishing (Polymer Handb).
ook 2nd ed, (J, Brandrup.

E, H, Tmmergut ii) John '1i
Also useful are synthetic polymers with glass transition temperatures of 40°C or higher, such as those described in J.D. Generally, the molecular weight of the polymer substance is 2,000 to 200.
ODD is useful. These polymeric substances may be used alone or in a blend of 2 or more, or may be used in combination of 2 or more as a copolymer.

Particularly preferred image-receiving layers include a layer made of polyvinyl chloride, a layer made of polycarbonate, or a layer made of polyester.

As the support for the image forming material, any support such as a transparent support or an opaque support may be used, and examples thereof include films of polyethylene terephthalate, polycarbonate, polystyrene, polyvinyl chloride, polyethylene, polypropylene, etc., and supports thereof. Supports containing pigments such as titanium oxygen, barium sulfate, calcium carbonate, and talc, baryta paper, resin coated paper laminated with thermoplastic resin containing pigments, cloth, glass, aluminum, etc. metals, etc., supports on which electron beam curable resin compositions containing pigments are coated and cured, and supports on which coating layers containing pigments are provided. I can mention the body. Furthermore, JP-A-62-283,3
Various coated papers such as the cast coated paper described in No. 13 are also useful as supports.

In addition, a support with a pigment-containing electron beam curable resin composition coated and cured on paper, or a support with a pigment coating layer on paper and an electron beam curable resin composition on the pigment coating layer. A composite support obtained by coating and curing the resin can itself be used as a resin layer or an image-receiving layer, so it is convenient to use it as it is as an image-forming material.

Alternatively, the image-receiving layer may be coated on only a portion of the support (for example, paper) to form an image on only a portion of the image-forming material.

Also, carts made of postcards, business cards or plastic inks can also be used as supports.

The thickness of the image-receiving layer may be arbitrarily selected depending on the purpose.
Preferably 065-20μm, more preferably 1-10μm
It is gm.

1. Image Forming Process 1. In the present invention, an image is formed on the image forming material by heating the photosensitive layer surface of the photosensitive material 4 after exposure and development and the image receiving layer surface of the image forming material in close contact with each other. . That is, according to the method of the present invention, the coloring dye formed as an image on the photosensitive layer of a photographic light-sensitive material is heated and diffused and transferred to the image-receiving layer that is in close contact with the photosensitive layer, thereby forming an image on the image-receiving layer. be done.

This heating method includes contacting a heated block or plate, contacting a heated roller or drum, passing through a high-temperature atmosphere, using high-frequency heating, and furthermore, the photographic photosensitive method of the present invention. It is also possible to provide a conductive layer containing a conductive substance such as carbon fluff on the back surface of the material or the back surface of the image forming member, and utilize the Joule heat generated by energization.

There are no particular restrictions on the heating pattern; heating patterns include preheating and then heating again; heating patterns that heat at a high temperature for a short time or low temperatures for a long time; and heating patterns that continuously increase the temperature. However, various heating patterns such as a heating pattern in which the temperature is lowered continuously, a heating pattern in which these are repeated, a heating pattern in which heating is discontinuous, etc. may be appropriately employed, or a simple heating pattern is preferable.

The heating temperature is preferably in the range of 80°C to 200°C, more preferably 100 to 170°C,
The heating time is preferably 10 seconds to 4 minutes, more preferably 20 seconds to 3 minutes.

[Example] Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited thereto.

(Example of Preparation of Photographic Material 1) The following layers 1 to 7 were sequentially coated (simultaneously coated) on a support made of paper coated with polyethylene on both sides to produce Photographic Material 1. . (In the following preparation examples, the amount added is expressed per 1 d of photographic material).

Gelatin a of layer l...12B; 3. (1g+g
Blue-sensitive silver halide emulsion (Em-1) of (in terms of silver, same hereinafter); 8.01g of yellow coupler (Y-1) having the following structure; 3g of photostable having the following structure (ST1) and 3 g of dinonyl phthalate (DNP) in which 0.15 g of 2,5-dioctylhydroquinone (HQ-1'') was dissolved.

<Y1>Ke<5T-1> Layer 2...9 g of gelatin a; 0.4 g of HQ
A layer containing 2 g of DOP (dioctyl phthalate) dissolved in -1.

Layer 3: 4-g of gelatin a; 2.5 mg of green-sensitive silver halide emulsion (Em-2); 4ml of magenta cobbler (M-1) represented by the following structural formula; DOP of 3B in which 2.5 mg of light stabilizer (ST-2) and 0.11 g of IQ-1 were dissolved: 0.
05 mg of filter dye with the following structure (AI-
A layer containing 1).

<M-1> 0 sentences sL <5T-2><A11> Layer 4...2 mg of Seratin a, having the following structural formula,
8-g ultraviolet absorber (UV-1) Yohi 0.5g
17) Layer containing 4B DNP in which HQ-1 is dissolved.

<UV-1> H OCal (+7 Layer 5...14 mg of gelatin a; 2.511 g of red-sensitive silver halide emulsion (Em-3); 5 g of cyan coupler (C- 1) and 0.1B
layer containing 51 g of DOP dissolved in HQ-1.

<C-1> Gelatin a of H 1j 6---11B; 2 mg of DOP in which UV-1 of 4B was dissolved; 10. having the following structural formula.
A layer containing 0.05 g of the following filter dye (AI-2).

<Al-2> As a hardening agent, a reaction product of tetrakis(vinylsulfonylmethyl)methane and taurine potassium salt (reaction ratio 1.0.75 (mole ratio)) was used in an amount of 0.04 g per 1 g of gelatin. Added in proportion.

(Preparation Example of Photographic Light-sensitive Material 2) Photographic Light-sensitive Material-1 was prepared except that thermal solvent-1 (the following structural formula) was added to each of the layers in Photographic Light-sensitive Material-1 in an equal weight ratio to gelatin. Photographic material-2 having the same composition as above was prepared.

Note that the hot solvent was added using a hot solvent dispersion prepared by the following method.

That is, 25 g of thermal solvent-1 having the following structural formula,
Aqueous solution 100 containing 0.04 g of surfactant-1 (Alkanol xC, manufactured by DuPont) having the following structural formula
It was dispersed in an alumina ball mill to make 120 m sentences.

<Heat solvent-1> Layer 7 - Layer containing 10 mg of gelatin a.

<Surfactant-> Macenta coupler (M-2) (Preparation example of photographic light-sensitive materials 3 and 4) Photographic light-sensitive material-1 except that each coupler in photographic light-sensitive material-1 was replaced with the couplers shown below. Photographic materials 3 and 4 were prepared in the same manner as in ゜2.

Yellow coupler (Y-2) H3 + CH2~C→1−−−−−−÷CH2−CH→T
Cyan coupler (C H3 y-60% by weight y=30% by weight (Example 1) The obtained photographic materials -1 to -4 were exposed to blue light, green light and red light through a step cloth. After that, development was performed according to the treatment shown below.

L-Yu 1 Color development 3 minutes 30 minutes Temperature 33°C Bleach fixing 1 minute 30 seconds Temperature 33°C Water washing 3
Minutes Temperature 33°C Dry Room temperature (25°
Naturally dry in C) and repeat 1] N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate 4.9 g hydroxyamine W
t-acid 2.0g potassium carbonate
25.0g sodium bromide
0.6g anhydrous sodium sulfite
2.0g Hensyl alcohol 13m
! ; Add 3.0m of L polyethylene glycol (average degree of polymerization 400) and 1! ; L, sodium hydroxide p++10
．． Adjust to 0.

Ethylenecyaminetetraacetic acid iron sodium salt 6.0g ammonium thiosulfate + []Og heavy sodium WL
Sodium chloride ] Og Sodium metabisulfite Add 3g water to make IJJ,
Adjust the ammonia water to pt+7.0.

After the photosensitive layer surfaces of the photographic light-sensitive materials -1 to -4 that had been subjected to the development treatment were brought into close contact with the image-receiving layer surface of the image forming material described below,
When heat-treated for 2 minutes at a temperature of 0°C, photographic materials -2 and -4 showed gradation of yellow and magenta with the maximum density shown in Table 1 below, depending on the exposure light. , whether a cyan image was obtained on the imaging material,
No images were obtained with Photographic Material-1 and Photographic Material-3. That is, according to the image forming method of the present invention, high quality images formed from silver halide photosensitive materials can be obtained on image forming materials with excellent water resistance by a simple method.

(SA-1) Leaf surface 1 (SA-2) Yellow Magenta Cyan photographic material 2 1,40 1,72 1.
914 1.8] 2.01
2.09 However, n = approximately 100 Amount used: 0.8 g /rrf The following compound (SA1) and (
An image forming material was prepared by coating a polyvinyl chloride layer (image receiving layer) containing SA-2).

(Example 2) Photographic material-5 having the same composition as photographic material-4 except that the thermal solvent in photographic material-4 was changed to the compound shown in Table 2.
-8 were created. Further, a photosensitive material-9 was prepared by combining the photographic material-4 with the exception that 20% of the gelatin in each layer of the photosensitive material-4 was replaced with polyvinylpyrrolidone.

The obtained photographic materials 5 to 8 were exposed, developed and thermally transferred in the same manner as in Example 1 to obtain images with the highest filtration rates shown in Table 2 on the image forming materials.

Thermal solvent-2 Thermal solvent-3 Table 2 Material book) Thermal solvent-4 Thermal solvent-1 I 2 Horn 3 Horn-1 1,97 1,77 1,83 1,80 1,95 2,20 1,97 2 ,04 1,99 2,]8 2.24 2.02 2.13 2.10 2.20 Note *: Weight ratio to Seratin (Example 3) Official postcard, white polyethylene terephthalate as support for image forming material base film (thickness 0.5
mm), Example 1 using high-quality paper for electrophotographic copying machines
An image forming material is prepared in the same manner as in the photographic material.
4 was used to form an image in the same manner as in Example 1, and the photosensitive material of Example 1 was deposited on each image forming material.
It was possible to form an image similar to that when using No. 4.

That is, according to the present invention, images can be formed on various substrates by a simple method using a silver halide photographic light-sensitive material.

[Effects of the Invention] According to the present invention, it is possible to provide an image forming method that can form a high-quality image without increasing the thickness of the substrate using a silver halide photographic light-sensitive material. Ru.

According to the present invention, it is possible to form an image with improved image storage stability even under high humidity conditions.

Claims (1)

[Claims] (1) A photographic material having on a support a photosensitive layer containing a photosensitive silver halide, a dye-providing substance, a binder and a thermal solvent is imagewise exposed and developed with a processing solution. 1. An image forming method comprising heating the surface of a photosensitive layer and an image forming material in close contact with each other to transfer all or part of the dye image-wise formed on the image forming material to the image forming material.