JPS63199346A - Image receiving material and image forming method - Google Patents

Abstract

PURPOSE:To facilitate uniform mixing of a transferred polymerizable compd. and photopolymerization initiator by incorporating microcapsules contg. the photopolymerization initiator into an image receiving layer. CONSTITUTION:The microcapsules contg. the photopolymerization initiator are incorporated into the image receiving layer of an image receiving material. This initiator consists of arom. ketone and the content thereof is preferably 0.1-10g/m<2>. The particle size of said capsules is 0.05-50mum and a color developer is preferably incorporated into the image receiving layer. After a prescribed photosensitive material is subjected to imagewise exposing and developing process, the photosensitive layer of the photosensitive material and the above- mentioned image receiving are superposed on each other and are pressurized in this state to transfer the polymerizable compd. in the photosensitive layer to the image receiving layer; further, light is projected thereon to form the image. The initiator and the polymerizable compd. are easily mixed to a uniform state and the photofixing is efficiently executed if this image receiving material is used. The image having high image quality and excellent preservable property is, therefore, obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to an image-receiving material having an image-receiving layer on a support and an image-forming method using the same.

[Background of the Invention] Conventionally, image-receiving materials have been used in various image-forming methods as materials that allow images to be easily obtained through relatively simple operations such as pressure transfer when forming images using recording materials. has been done.

For example, image-receiving materials can be used for image forming methods such as electrophotography, thermal transfer type thermal recording method, heat sublimation type thermal recording method, etc.
No. 5B-88739, No. 58-88740, and No. 59-30537, photopolymerizable photosensitive recording materials described in Japanese Patent Application Laid-Open No. 58-88739, etc. It is used in the image forming method used. Furthermore, it has recently been found that the present invention can be advantageously used in image forming methods using photosensitive materials using silver halide as photosensors as described in Japanese Patent Laid-Open Nos. 61-69062 and 61-73145. That is, after irradiating the photosensitive material having the structure described in item 1 with light to imagewise polymerize the polymerizable compound, the unpolymerized polymerizable compound (or together with the color image forming substance) is imagewise transferred to the image-receiving material. In the image forming method, the image receiving material allows images formed on the photosensitive material to be easily and efficiently reproduced.

By the way, as a method proposed by the present applicant to utilize the above-mentioned image forming method and to further improve the retention and image quality of the image obtained on the image-receiving material, after transfer by the action of a photopolymerization initiator contained in the photosensitive material, There is a method of curing (photofixing) the image by irradiating the image on the image receiving material with light (Japanese Patent Application No. 3025/1982).

Further, the image forming method described in ``2'' can also be carried out in the same manner as described above by using an image-receiving material in which a photopolymerization initiator is directly exposed. However, according to studies by the present inventors, the photopolymerization initiator is generally present in the image-receiving layer of the image-receiving material in a dispersed (solid dispersion) state contained in oil droplets of an organic solvent. When image formation is performed, it is difficult to mix with the unpolymerized polymerizable compound transferred from the photosensitive material, and therefore the above-mentioned photofixing (hardening by polymerization) does not proceed uniformly, resulting in poor storage stability and image quality of the resulting image. could be damaged. Furthermore, the surface of the image-receiving layer containing the photopolymerization initiator in the form of oil droplets tends to become sticky, making it inconvenient to handle.

[Summary of the Invention] The present invention provides an image-receiving material in which curing (photo-fixing) by light irradiation progresses efficiently and the storage stability and image quality of images after fixing are more stable, and an image-forming method using the same. The purpose is to provide

Another object of the present invention is to provide an image-receiving material in which stickiness on the surface of the image-receiving layer is eliminated and handling is improved.

That is, the present invention resides in an image-receiving material characterized in that an image-receiving layer having microcapsules containing a photopolymerization initiator is provided on a support.

Further, the present invention provides a photosensitive material having a photosensitive layer containing silver halide, a reducing agent, and a polymerizable compound on a support, which is subjected to development treatment simultaneously with or after imagewise exposure, and then, By pressing one photosensitive layer side of the photosensitive material and the image-receiving layer side of the image-receiving material on which an image-receiving layer having microcapsules containing a photopolymerization initiator is provided on the support in a superposed state, The image forming method is characterized in that after transferring an unpolymerized polymerizable compound to an image receiving material, the image receiving material is irradiated with light.

[Effects of the Invention] Since the image-receiving material of the present invention contains a photopolymerization initiator in the form of microcapsules in the image-receiving layer, in an image forming method using the photopolymerization initiator, the transferred unpolymerized polymerizable material The compound and the photopolymerization initiator are easily mixed uniformly in the image-receiving layer, allowing efficient photofixing.

That is, according to the image-receiving material of the present invention, the photopolymerization initiator is extracted from the capsules destroyed by pressure transfer in a solution state (
Since it can be taken out in a state (contained in a solvent), it is extremely easy to form a uniform mixed state with the unpolymerized polymerizable compound that is transferred in the solution state. Therefore, images made of these mixtures are efficiently photofixed and are in a highly cured state. Therefore, the obtained fixed image is
Image blurring, light fading, dark fading, or blurring of the image is prevented, resulting in a high quality image and high storage stability.

Further, in the image-receiving material of the present invention, since oil droplets are not directly exposed on the surface of the image-receiving layer, the stickiness of the surface caused by oil droplets is eliminated, so that the image-receiving material is easy to handle.

[Detailed Description of the Invention] There are various types of photopolymerization initiators that can be used in the present invention, including known substances. Generally, a photopolymerization initiator has lower sensitivity to light than silver halide, and the type of photopolymerization initiator is determined by taking into account the type of polymerizable compound used, the conditions for image formation, etc.

Examples of preferred photopolymerization initiators include α-alkoxyphenyl ketones, polycyclic quinones, benzophenones and substituted benzophenones, xanthones, thioxanthones, halogenated compounds romethyl heterocyclic compounds,
chlorosulfonyl and chloromethylbenzophenones, and fluorenones), haloalkanes, α-octahe-α-phenylacetophenones, photoreducible dye-reductions (e.g., brominated or chlorinated paraffins), benzoyl alkyl ethers, and Examples include a lophine dimer-mercapto compound couple. Among these, aromatic ketones are particularly preferred.

A specific example of a preferred photopolymerization initiator is 2゜2-dimethoxy-2-phenylacetophenone.

9.10-Anthraquinone, benzophenone, Michler's ketone, 4,4'-diethylaminobenzophenone, xanthone, chloroxanthone, thioxanthone, chlorothioxanthone, 2,4-diethylthioxanthone, chlorosulfonylthioxanthone, chlorosulfonylanthraquinone, chloromethylanthracene, chloromethylbenzo Thiazole, chlorosulfonylbenzoxazole, chloromethylquinoline, chloromethylbenzophenone, chlorosulfonylbenzophenone, fluorenone, carbon tetrabromide, benzoin butyl ether, benzoin isopropyl ether, 2,2'-bis(θ-chlorophenyl)-4,4' , 5゜5'-tetraphenylbiimidazole and 2-mercapto-5-methylthio-1,3,4
-Thiadiazole combinations, etc. may be mentioned. These photopolymerization initiators may be used alone or in combination of several types.

However, if the photopolymerization initiator is sensitive to visible light or is colored, it may cause the particles in the capsule to polymerize when the image-receiving material is stored in room light, or the color of the image may change. There are cases where it may be caused. For this reason, it is preferable to use a colorless or light-colored photopolymerization initiator (for example, an optical modulus in the visible light range of 0.3 or less).

The image-receiving layer generally refers to a layer having a specific function regarding formation and fixation of images. The image-receiving layer of the present invention is particularly provided with the function of photofixing by the action of a photopolymerization initiator, but other examples of the function of the bipedal image-receiving layer include image forming processes such as transfer. Functions that directly relate to image formation and fixation include functions that improve the smoothness of the surface so that the process progresses smoothly, functions that improve image quality such as gloss, and functions that are directly related to image formation and fixation, such as containing a mordant or color developer. . In this specification, the r image-receiving layer J means a layer provided on a support and having one or more functions related to image formation.

Examples of commonly used image receiving layers include a coat layer provided on coated paper (including cast coated paper, art paper, etc.), a baryta layer provided on baryta paper, and a transfer layer as described above. Examples include a layer containing a mordant or a color developer used in a mold image forming method.

As described above, the image-receiving layer can be configured in any desired form using various materials according to the intended usage method (image forming method).

Arbitrary components that can be included in the image-receiving layer include binders, color developers, mordants, thermoplastic compounds, white pigments, thermal polymerization initiators, and the like.

As the binder, it is preferable to use a mainly hydrophilic binder. A typical example of the wood-loving binder is a transparent or semi-transparent wood-loving binder.

Examples of this include gelatin (lime-processed gelatin,
Acid-treated gelatin, enzyme-treated gelatin, etc.), gelatin derivatives, modified gelatin; Proteins such as colloidal altumin and casein; Cellulose derivatives such as carboxymethyl cellulose and hydroxyethyl cellulose; Sugar derivatives such as agar, starch, and sodium alginate; Natural products such as gum arabic substances and synthetic polymeric substances such as water-soluble polyvinyl compounds such as polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid copolymers, polyacrylamide polymers, or derivatives and partial hydrolysates thereof, and further dispersed in the form of latex. Examples include vinyl compounds and the like. The above may be used alone or in combination as required.

In addition, as in the image-receiving phase material described in Japanese Patent Application No. 61-53879, the binder has an oxygen permeability coefficient of 1,
Ox 10-” crn'・cm/crn' ・second・
Polymers with less than cm Hg may be used. When a polymer with low strict transparency is used as described above, the color image-forming substance transferred to the image-receiving layer is difficult to deteriorate, and the image obtained on the image-receiving material is not preserved for a long time or under harsh conditions. The color hardly fades even after storage.

The binder is contained in the image receiving layer in an amount of 0.01 g/rn' to 1
It is preferred to use an amount in the range 00/rn'. A more preferable usage range is 0.1g/rrf to Log/
rn'.

When using a system that develops color by contacting two or more components, such as a color former and a color developer, as a coloring system for a color image forming substance, - or more of the above components are used as the color image forming substance, and the remaining One of the above components can be included in the image-receiving layer as a color developer. The above-mentioned coloring system has the advantage of producing clear color images with high sensitivity.

Systems that develop color through contact of two or more components include various systems that develop color through acid-base reactions, redox reactions, coupling reactions, chelate formation reactions, etc. between two or more components. For example, pressure-sensitive copying paper (pages 29-58) and Azography (pages 87-95) described in Hiroyuki Moriga's ``Introductory/Special Paper Chemistry J (published in 1975)
page), known coloring systems such as thermosensitive coloring by chemical change (pp. 118-120), or the latest dye chemistry - Attractive uses and new developments as functional dyes - Proceedings of the seminar sponsored by the Kinki Chemical Industry Association. The coloring system described on pages 26-32 (June 19, 1980) can be used. Specifically, a coloring system consisting of a coloring agent with a partial structure such as lactone, lactam, and spiropyran used in pressure-sensitive paper and an acidic substance (acidic color developer) such as acid clay and phenols: aromatic diazonium salt. Systems using azo coupling reactions of diazotate, diazosulfonates, naphthols, anilines, active methylenes, etc.: Reactions of hexamethylenetetramine with ferric ions and gallic acid, and phenolphthalein-combreculanes. Chelate-forming reactions such as the reaction between ferric nistearate and pyrogallol, and redox reactions such as the reaction between silver behenate and 4-methoxy-1=naphthol can be used.

In addition, as an example of a system that develops color through contact of two or more components to a light-sensitive material, there is a patent application filed in 1983.
Reaction between a leuco dye and an acidic color developer described in Japanese Patent Application No. 53876; Reaction between a triazene compound, an acidic color developer, and a coupler described in Japanese Patent Application No. 61-96339: Japanese Patent Application No. 1983
For example, the reaction between a yellow color-forming leuco dye and an acidic color developer described in No. 1-133091 and No. 61-133092 can be mentioned.

When the image-receiving layer contains at least one of the two or more components described above, it is preferable to include a color developer (or a component corresponding to the color developer) in the image-receiving layer.

When a dye or a pigment is used as the color image-forming substance, a mordant may be included in the image-receiving layer. In addition,
A photosensitive material characterized by using a dye or a pigment as a color image forming substance is described in Japanese Patent Application No. 1987-29987. The mordant that can be used in the image-receiving layer can be selected from compounds known in the photographic technology, taking into consideration conditions such as the type of dye or pigment, and used. Note that, if necessary, two or more image-receiving layers may be constructed using a plurality of mordants having different mordant powers.

The image-receiving layer may contain a thermoplastic compound. When the image-receiving layer contains a thermoplastic compound, it is preferable that the image-receiving layer itself is constituted as an aggregate of thermoplastic compound fine particles. The image-receiving layer having the above structure has the advantage that it is easy to form a transferred image, and that a glossy image can be obtained by heating after image formation. The above thermoplastic compound is not particularly limited and can be arbitrarily selected from known plastic resins (plastics), waxes, and the like. However, the glass transition point of the thermoplastic resin and the melting point of the wax are preferably 2008C or lower. Regarding an image receiving material having an image receiving layer containing thermoplastic compound fine particles as described above, Japanese Patent Application No. 1983-124
No. 952 and 61-124953.

In addition to the photopolymerization initiator according to the present invention, the image-receiving layer may contain a thermal polymerization initiator for the purpose of fixing treatment by heating. By including a thermal polymerization initiator, light irradiation and heating can be carried out in combination, and the curing (fixing) process of a transferred image made of an unpolymerized polymerizable compound can be carried out more efficiently.

An image receiving material having an image receiving layer containing a thermal polymerization initiator is described in Japanese Patent Application No. 55502/1982.

A dye or pigment can be included in the image-receiving layer for the purpose of writing characters, symbols, frames, etc. on the image-receiving layer, or for the purpose of making the background of an image a specific color. Further, a dye or a pigment may be included in the image-receiving layer for the purpose of making it easier to distinguish between the front and back sides of the image-receiving material. As the dye or pigment, various known substances including dyes or pigments that can be used in image formation can be used, but there is a risk that the dye or pigment may damage the image formed in the image-receiving layer. In some cases, it is preferable to lower the dyeing density of the dye or pigment (for example, to reduce the reflection density to 1 or less), or to use a dye or pigment that has the property of being decolored by heating or light irradiation.

An image-receiving material having an image-receiving layer containing a dye or pigment that has the property of being decolored by heating or light irradiation is described in Japanese Patent Application No. 1983-96339.

Furthermore, when a white pigment such as titanium dioxide or barium sulfate is added to the image-receiving layer, the image-receiving layer can function as a white reflective layer.

When the dye or pigment described above is contained in the image-receiving layer, it may be contained uniformly or unevenly distributed in a portion. For example, a portion of the reflected image can be made into a projected image by forming the support from a light-transmitting material and including the white pigment in a portion of the image-receiving layer. By doing so, image information that is unnecessary in the projected image can be written as a reflected image in the image-receiving layer portion containing the white pigment.

The image-receiving layer is formed on the support, for example, as follows.

First, the photopolymerization initiator is dissolved (core material) in a suitable organic solvent (however, if the photopolymerization initiator is liquid, no solvent may be used). Next, this is dispersed in a suitable solvent to obtain an emulsion.

The above-mentioned organic solvent can also be used without particular limitation, but in the present invention, it is preferably the same or the same kind of compound as the polymerizable compound used in the photosensitive material in the above-described image forming method. By doing so, mixing with the unpolymerized polymerizable compound transferred from the photosensitive material is facilitated, and optical fixation is advantageously performed. For details of the polymerizable compound, see, for example, JP-A-61
-69062, 61-73145, etc. have descriptions thereof. In this way, an emulsion in which the photopolymerization initiator is contained in the oil droplets of the polymerizable compound is obtained.

Next, microencapsulation technology is introduced into the emulsion to form a capsule wall (polymer membrane).

As for the microencapsulation technique, various known techniques can be used without any particular limitations.

Examples of microencapsulation methods include, for example, a method using coacervation of woody wall-forming materials described in the specifications of US Pat. No. 2,800,457 and US Pat. No. 2,800,458; US Pat. Specifications 1 of each issue and Japanese Patent Publication No. 38-19
Interfacial polymerization method described in No. 574, No. 42-446, and No. 42-771 Aroyo Publication; Method by polymer precipitation described in each specification of U.S. Pat. No. 3,418,250 and No. 3,660,304; Method by precipitation of polymer described in U.S. Pat. A method using the isocyanate-polyol wall material described in U.S. Pat. No. 3,914,511; A method using the isocyanate wall material described in U.S. Pat. No. 4,001,140, U.S. Pat. No. 4,087,376, and U.S. Pat. A method using wall-forming materials such as melamine-formaldehyde resin or hydroxypropyl cellulose described in U.S. Pat. No. 4,025,455; JN 5JTU method by polymerization of 1,000 yen as described in 1982-9079; British Patent No. 927807 and British Patent No. 965074. Polymerization dispersion cooling method described in each specification; U.S. Patent No. 3111407 and British Patent No. 930
Examples include the spray drying method described in each specification of No. 422.

Among the above microencapsulation methods, in the present invention, the interfacial polymerization method (external polymerization method) is particularly preferred because it is easy to operate.

By the above operations, a microcapsule dispersion in which a photopolymerization initiator is contained in microcapsules is obtained. The particle size of the microcapsules obtained as described in 2.
It is preferably in the range of 0.05 to 50 μm, and more preferably in the range of 0.1 to 101 Lm.

The above microcapsule dispersion can be used directly as a coating solution for forming an image-receiving layer. Further, if necessary, the above-mentioned optional components can be used as a coating solution for forming an image-receiving layer by adding them directly or by adding a solution dissolved in an appropriate solvent to the capsule dispersion.

The image-receiving layer can be obtained by applying the above-mentioned coating solution for forming an image-receiving layer onto a support using a conventional coating means and drying it. Note that the image-receiving layer can also be formed as a plurality of layers by preparing coating solutions containing the above-mentioned optional components and sequentially coating them on the support so as to have the desired functions. . In this case, it is preferable that the layer containing the photopolymerization initiator according to the present invention be placed at the top.

The image receiving layer formed as described above contains a photopolymerization initiator of 0.1 to Log/rr? It is preferable that it is contained in an amount within the range of .

The thickness of the image-receiving layer is generally in the range of 1 to 1007 pm, particularly preferably in the range of 1 to 20 pLm.

On the image-receiving layer of the image-receiving material of the present invention, a protective layer or any other layer can be further provided as desired.

An example of an optional layer is a layer made of aggregates of thermoplastic compounds. When a layer made of an aggregate of a thermoplastic compound is provided on the image-receiving layer, it is easy to form a transferred image in the same manner as when the image-receiving layer contains a thermoplastic compound, and after image formation, heating is possible. This has the advantage that a glossy image can be obtained. Furthermore, the thermoplastic compounds that can be used in the layer consisting of aggregates of thermoplastic compounds are the same as the thermoplastic compounds that can be included in the image-receiving layer described above. An image-receiving material in which a layer made of an aggregate of a thermoplastic compound is further provided on the image-receiving layer is described in Japanese Patent Application No. 55503/1983.

Materials that can be used for the support include glass, paper, woodfree paper, coated paper, cast coated paper, baryta paper, synthetic paper, metals and their analogs, polyester, acetyl cellulose, cellulose ester, polyvinyl acetal, polystyrene. Examples include films such as polycarbonate, polyethylene terephthalate, and paper laminated with resin materials and polymers such as polyethylene.

Note that when a porous material such as paper is used as the support for the image receiving material 4, it is preferable that the material has a certain level of smoothness. Specifically, regarding the smoothness, the surface of the support on which the image-receiving layer is provided conforms to J I 5-B-061
Cut-off value 0.8 m from the cross-sectional curve measured according to 0.
Regarding the cancer wave undulation curve derived under the conditions of m, it is preferable to have a surface characteristic such that the maximum filtered undulation is 4 gm or more when the maximum filtered undulation is measured at 100 arbitrary measurement points with a reference length of 0.2 mm. . Regarding the image-receiving material using the smooth support specified above,
It is described in the specification of No. 1-52990. Further, in order to obtain a transparent image, the material of the image-receiving material may be made of a light-transmitting material. When obtaining a transparent image, the light transmittance of the support of the image-receiving material is preferably 30% or more, more preferably 50% or more. In addition,
Regarding image-receiving materials using transparent supports, Japanese Patent Application No. 1986-
It is described in the specification of No. 52991.

An image forming method using the image-receiving material of the present invention will be described below.

The image-receiving material of the present invention is used by forming a transferred image on the image-receiving material and then irradiating the image with light.

Image forming methods that advantageously use the image-receiving material of the present invention include the aforementioned JP-A-57-179836 and JP-A-5B-88.
No. 739, No. 58-88740, and No. 59-30
Examples include a method using a photosensitive recording material described in JP-A No. 537, and a method using a photosensitive recording material using silver halide as a photosensor described in JP-A-61-69062 and JP-A-61-73145. . Among these, the latter method is more preferable in terms of sensitivity.

That is, a photosensitive material having a photosensitive layer containing silver halide, a reducing agent, and a polymerizable compound on a support is developed simultaneously with or after imagewise exposure, and then the photosensitive material is developed. This is an image forming method in which an unpolymerized polymerizable compound is transferred to an image-receiving material by applying pressure while the photosensitive layer side and the image-receiving layer side are overlapped, and then the image-receiving material is irradiated with light.

The image forming method described above will be explained in order below.

Although various exposure methods can be used for imagewise exposure of a photosensitive material, a latent image of silver halide is generally obtained by imagewise exposure to radiation including visible light.

The type of light source and the amount of exposure can be selected depending on the sensitivity wavelength of silver halide (in the case of dye sensitization, the sensitized wavelength) and sensitivity. Further, the original image may be a black and white image or a color image.

Next, the photosensitive material is subjected to a development process simultaneously with the imagewise exposure or after the imagewise exposure. As for the development process,
No. 5-11149, No. 47-20741, No. 49-1
No. 0697, JP-A-57-138632, JP-A No. 5B-1
It is also possible to carry out a development process using a developer described in each publication such as No. 69143. In addition, the methods described in the aforementioned Japanese Patent Application Laid-open Nos. 61-69062 and 61-73145, which involve heat development, are dry processing, so they have the advantage of being simple to operate and capable of being processed in a short time. ing. Therefore, as a developing process for photosensitive materials.

The latter is particularly preferred.

As the heating method in the above heat development treatment, various conventionally known methods can be used. Also, JP-A-61-
Like the photosensitive material described in Japanese Patent No. 294434, the photosensitive material may be provided with a heating layer and used as a heating means. The heating temperature is generally 80°C to 200°C, preferably 100°C.
℃ to 160℃. The heating time is generally 1 second to 5 minutes, preferably 5 seconds to 1 minute.

The photosensitive material can be developed as described above to polymerize the polymerizable compound in either the area where a silver halide latent image is formed or the area where no latent image is formed. In addition, in photosensitive materials, the polymerizable compound in the portion where the latent image of silver halide is generally polymerized in the above-mentioned development process. By adjusting the type, amount, etc. of the reducing agent used, it is also possible to polymerize the polymerizable compound in the portion where the silver halide latent image is not formed. As described above, the polymerizable compound in the area where the latent image is formed (or the area where the latent image is not formed) can be polymerized and cured.

Next, the image-receiving material of the present invention is superimposed on the photosensitive material which has been developed as described above, and pressure is applied to transfer the unpolymerized polymerizable compound to the image-receiving material. Regarding the above-mentioned pressurizing means, various conventionally known methods can be used.

In this way, the uncured portion of the polymerizable compound is transferred to the image-receiving material, and a transferred image in which the uncured portion and the photopolymerization initiator are uniformly mixed is formed on the image-receiving layer. Then, by irradiating this image with light (photofixing), a polymer image (cured image) can be obtained.

Examples of the light source that irradiates the transferred image in the presence of a photopolymerization initiator include a mercury lamp, a Xe (xenon) lamp, a Xe (xenon) flash lamp, and a tungsten lamp. Generally, the exposure amount in the above-mentioned photofixing is set to be larger than the exposure amount in the above-mentioned imagewise exposure, although it varies depending on the type of photopolymerization initiator and the amount used. The polymer image formed in this way has improved storage stability, image quality, etc.

Regarding general image forming methods using image-receiving materials,
There is a description in JP-A No. 61-278849.

The photosensitive materials and image forming methods that can be applied to the image-receiving material of the present invention are described in the following publications and specifications in addition to the series of image forming methods and application specifications related to the photosensitive materials described above.

For example, JP-A-61-183640, JP-A No. 61-188
No. 535, No. 61-228441, No. 61-2757
No. 42, No. 62-947, No. 62-3246,
and Japanese Patent Application No. 60-218603, No. 60-2260.
No. 84, No. 60-227527, No. 60-22752
No. 8, No. 60-261888, No. 60-294337
No. 60-294338, No. 60-294339, No. 60-294340, No. 60-294341,
No. 61-3024, No. 61-5751, No. 61-1
No. 1556, No. 61-13181, No. 61-2043
No. 8, No. 61-25576, No. 61-25577,
No. 61-25578, No. 61-29987, No. 61
-38510, 61-38511, 61-38
No. 512, No. 61-42746, No. 61-42747
No. 61-52988, No. 61-52989, No. 61-52989, No. 61-52992, No. 61-
No. 52993, No. 61-52994, No. 61-529
No. 95, No. 61-52996, No. 61-53871, No. 61-53872, No. 61-53873, No. 6
No. 1-53874, No. 61-53875, No. 61-5
No. 3876, No. 61-53877, No. 61-5387
No. 8, No. 61-53880, No. 61-53881,
No. 61-55504, No. 61-55505, No. 61
-55506, 61-55507, 61-55
No. 508, No. 61-55509, No. 61-55510
No. 61-96339, No. 61-96340, No. 61-96341, No. 61-104226, No. 61
-133091, No. 61-133092, and No. 61-160592.

The image-receiving material of the present invention can be used for various images such as black-and-white or color photography and printing, printing, printing plates, X-ray photography, medical diagnosis photography (for example, ultrasonic diagnostic CRT photography), computer graphics hard copies, copying machines, etc. It can be applied in the field of forming methods.

Examples and comparative examples of the present invention are described below.

[Example 1] [Preparation of image-receiving material] An image receiving material was prepared as follows.

Preparation of liquid of microcapsules containing Mitsushige Initiation J 18.6% aqueous solution of isopane (manufactured by Kuraray ■) 10.51
g was added to 48.56 g of a 2.89% aqueous pectin solution to obtain an aqueous solution whose pH was adjusted to 4.0 using 10% sulfuric acid. to this aqueous solution.

Add a solution of 9 g of Irgacure 651 [photopolymerization initiator] (manufactured by Ciba Geigy Mari) dissolved in 9 g of trimethylolpropane triacrylate, and stir with a homogenizer at 7000 rpm for 2 minutes to obtain a solution containing the photopolymerization initiator. Emulsified in aqueous medium.

To 72.5 g of this aqueous emulsion, add 8.3 g of urea 40% aqueous solution.
2g, 2.82g of resorcinol 11.3% aqueous solution, 8.56g of formalin 37% aqueous solution, and 8.56g of ammonium sulfate.
．． Add 2.74 g of 76% aqueous solution one by one and add 6.0 g without stirring.
Heating was continued for 2 hours at 0'C. Thereafter, the pH was adjusted to 7.0 using a 10% aqueous sodium hydroxide solution, and 3.62 g of a 30.9% aqueous sodium bisulfite solution was added.

As described above, a dispersion of microcapsules containing a photopolymerization initiator was produced.

Preparation of image-receiving material 11 g of 40% sodium hexametaphosphate aqueous solution was added to 125 g of water, and 34 g of zinc 3,5-di-α-methylbenzylsalicylate (color developer) and 82 g of 55% calcium carbonate slurry were mixed. Roughly dispersed with a mixer. Disperse the liquid with a Dynamyl dispersion machine, and 2 of the obtained liquid
50% styrene butadiene rubber (SB
R) 6g latex and 8% polyvinyl alcohol 5
5 g was added and mixed uniformly. This mixed liquid has a basis weight of 43g/
It was uniformly coated on the art paper (support) of d to a wet film thickness of 30 gm, and then dried to form a developer-containing layer.

Next, a dispersion of microcapsules containing a photopolymerization initiator prepared as described above is poured onto the developer-containing layer.
After applying it uniformly to a wet film thickness of 0.0 m,
It was dried to form a photopolymerization initiator-containing layer.

An image-receiving material according to the present invention was produced as described above.

[Comparative Example 1] In Example 1, an image-receiving material for comparison (II )It was created.

[Preparation of photosensitive material] Preparation of silver halide emulsion Dissolve 40 g of gelatin and 23.8 g of potassium bromide in 3 ml of water, heat to 50°C, and continue stirring.So, dissolve 34 g of silver nitrate in 200 ml of water. was added over a period of 10 minutes. Then, add 3.3 g of potassium iodide to 10 g of water.
A solution of 0mM was added for 2 minutes. The pH of the silver iodobromide emulsion thus obtained was adjusted, and after sedimentation and removal of excess salt, the pH was adjusted to 6.0 and the yield was 400.
A silver iodobromide emulsion of g was obtained.

Preparation of sensitive composition 100 g of trimethylolpropane triacrylate, 0.40 g of the following copolymer, Vargas Script Red I to 6-B (manufactured by Ciba Geigy)6. OOg was dissolved. To 18.00 g of the above solution, 0.671 g of the following hydrazine derivative (reducing agent) and the following developer (reducing agent)
A solution of 1.22 g dissolved in 1.80 g methylene chloride was added. Furthermore, 4.06 g of the above silver halide emulsion was added and stirred for 5 minutes at 15,000 revolutions per minute using a homogenizer to obtain a photosensitive composition.

(copolymer)? H3CL ■ co2c, +H9 (Hydrazine derivative) (Developer) 18.6% aqueous solution of isohan (manufactured by Clarey) 10.51
g, 48.56 g of a 2.89% aqueous pectin solution was added to the solution, the pH of which was adjusted to 4.0 using 10% sulfuric acid, the photosensitive composition was added to the solution, and the photosensitive composition was heated at 7 min. with a homogenizer.
The photosensitive composition was emulsified in the aqueous solvent by stirring at 000 rpm for 2 minutes.

To 72.5 g of this aqueous emulsion, add 8.3 g of urea 40% aqueous solution.
2 g, 2.82 g of resorcinol 11.3% aqueous solution, 8.56 g of formalin 37% aqueous solution, and ammonium sulfate 8.
．． Add 2.74 g of 76% aqueous solution one by one and add 6.0 g while stirring.
Heating was continued for 2 hours at 0°C. Thereafter, the pH was adjusted to 7.0 using a 10% aqueous sodium hydroxide solution, and 3.62 g of a 30.9% aqueous sodium bisulfite solution was added.

A dispersion of photosensitive microcapsules was produced as described above.

To 6.00 g of the dispersion of photosensitive microcapsules prepared as described above, 0.4 g of the following base precursor and 1 g of copper oxide were added to 1 g of a 5% aqueous solution of polyvinyl alcohol.
A coating solution for forming a photosensitive layer was prepared by adding 0.03 g of the dispersed solution to 0.0 g. Next, this coating solution was applied onto a 100 gm thick polyethylene terephthalate film to a wet film thickness of 60 gm.
A photosensitive material was prepared by coating the film and drying it.

(Base precursor) [Evaluation as image-receiving material] Image-receiving materials (I) and (n) obtained as above
was evaluated according to the following procedure.

(1) Using the above-obtained photosensitive material using a halogen lamp,
After imagewise exposure for 2 seconds each at 000 lux, 12
The surface of the photosensitive layer was brought into close contact with a hot plate heated to 5° C. and heated for 30 seconds. Next, the photosensitive material was superimposed on the image-receiving material prepared as described above to give a weight of 350 kg/
When passed through a crn' pressure roller, a clear magenta positive image was obtained on each image-receiving material. When the density of the obtained images was measured using a Macbeth reflection densitometer, the highest density of each image was 1.3 and the lowest density was 0.1, and the ratio of the highest density to the lowest density was high and clear. A great image was obtained.

(2) Next, each image obtained on the image-receiving material is irradiated with 1 flash using a xenon flash lamp (300 W/sec: having a luminous energy of 300 Joules per 1 flash) at a distance of 5 cm from the light source, Light fixed.

(3) Next, layer the photo-fixed image-receiving material on plain paper,
After passing through a pressure plate of 350 kg/c, the plain paper was peeled off.

The following results were obtained from the above series of operations.

The color image obtained on the image-receiving material (I) according to the invention was not transferred to the plain paper side at all, and no image smearing was observed. However, in the above image formation, the transferred image obtained on the image-receiving material was not irradiated with xenon flash (without light fixing), and was overlapped with plain paper in the same manner as above, and 350 kg/
When the plain paper was peeled off after passing through a pressure roller of cm', half of the color image on the image-receiving material was transferred to the plain paper side, and the density of the image on the image-receiving material became considerably thinner.

On the other hand, the color image on the comparative image-receiving material (n) was partially transferred to the plain paper side, and the density of the image on the image-receiving material was considerably reduced.

Claims (1)

[Scope of Claims] 1. An image-receiving material characterized in that an image-receiving layer having microcapsules containing a photopolymerization initiator is provided on a support. 2. The image-receiving material according to claim 1, wherein the photopolymerization initiator is an aromatic ketone. 3. The content of the photopolymerization initiator is 0.1 to 10 g/
The image receiving material according to claim 1, characterized in that the image receiving material is in the range of m^2. 4. The image-receiving material according to claim 1, wherein the particle size of the microcapsules is in the range of 0.05 to 50 μm. 5. The image-receiving material according to claim 1, wherein the image-receiving layer contains a color developer. 6. The image-receiving material according to claim 1, wherein the image-receiving layer contains a binder. 7. A photosensitive material having a photosensitive layer containing silver halide, a reducing agent, and a polymerizable compound on a support is subjected to development treatment simultaneously with or after imagewise exposure, and then,
By pressing the photosensitive layer side of the photosensitive material and the image receiving layer side of the image receiving material provided on a support with an image receiving layer having microcapsules containing a photopolymerization initiator in a superposed state, An image forming method comprising transferring a polymerizable compound to an image-receiving material and then irradiating the image-receiving material with light. 8. The image forming method according to claim 7, wherein the photopolymerization initiator is an aromatic ketone. 9. The content of the photopolymerization initiator is 0.1 to 10 g/
8. The image forming method according to claim 7, wherein the image forming method is in the range of m^2. 10. The image forming method according to claim 7, wherein the particle size of the microcapsules is in the range of 0.05 to 50 μm. 11. The image forming method according to claim 7, wherein the image receiving layer contains a color developer. 12. The image forming method according to claim 7, wherein the image receiving layer contains a binder. 13. The image forming method according to claim 7, wherein the developing treatment is performed by heating. 14. The image forming method according to claim 13, wherein the heating is performed at a temperature in the range of 80 to 200°C.