JPH0534929A - Picture forming method - Google Patents

Abstract

PURPOSE:To form a picture with a paper feeding property and releasability due to curling improved by using an image receiving material with curling reduced. CONSTITUTION:An image receiving layer is provided on a paper substrate to constitute the image receiving material in which water is applied by 1-20wt.% of the water applied when the image receiving layer is formed on the opposite side of the image receiving layer and dried. A photosensitive material having a photosensitive layer comprising a microcapsule contg. at least a color picture forming substance and polymerizable compd. is provided on the substrate, the compd. is polymerized in the form of a picture, and the photosensitive material and the image receiving material are combined and pressed to form a picture on the image receiving material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an image-receiving material having an image-receiving layer on a paper support, and a light-sensitive layer containing microcapsules containing at least a color image-forming substance and a polymerizable compound on the support. The present invention relates to an image forming method using a photosensitive material.

[0002]

2. Description of the Related Art Conventionally, various image forming methods have been used as an image receiving material as a material which can easily obtain an image by a relatively simple operation such as pressure transfer or heat transfer when an image is formed using a recording material. Is used for.

For example, as the image receiving material, an image forming method such as an electrophotographic method, a heat transfer type heat sensitive recording method, a heat sublimation type heat sensitive recording method and the like are used, and JP-B-64-7377 and JP-A-5-37377.
8-88739, 58-88740, and 5
It is used in an image forming method using the photopolymerizable photosensitive recording material described in JP-A No. 9-30537 and the photodegradable photosensitive recording material described in JP-A-58-88739.
In addition, recently, JP-A-61-257542 and 61
-278849, 62-187346 and Japanese Patent Application No. 1-205881, it has been found that it can be advantageously used in an image forming method using a light-sensitive material using silver halide as an optical sensor. There is.

In the image forming method using the light-sensitive material using this silver halide, a latent image is formed on the light-sensitive silver halide according to the amount of exposed light, and the latent image is formed by the developing process. The polymerizable compound is polymerized. After the polymerizable compound is polymerized into an image, the light-sensitive material and the image-receiving material are superposed and pressed to transfer the color image-forming substance together with the unpolymerized polymerizable compound onto the image-receiving material to form an image on the image-receiving material. Is formed. On the contrary, for the method of polymerizing the polymerizable compound in the portion where the latent image is not formed, see JP-A-62-70836 and 62-
81635, JP-A-2-141756, and JP-A-2-14
It is described in each publication such as No. 1757.

That is, in the above image forming method,
The image-receiving material plays the role of easily and efficiently reproducing the image formed on the light-sensitive material, and normally, a paper support provided with an image-receiving layer is preferably used.
It is preferable that the image receiving material is capable of easily transferring the image from the light-sensitive material and has good handleability after transfer and peeling. Therefore, it is generally preferable that the image receiving material does not curl before and after the transfer operation. As one of so-called curling prevention measures for so-called coated paper (including the image-receiving material according to the present invention), a method of coating and drying water or the like on the surface opposite to the conventional coated surface is known.

[0006]

In the image forming method using the photosensitive material as described above, the surface of the photosensitive material on the photosensitive layer side and the surface of the image receiving material on the image receiving layer side are overlapped with each other before the transfer operation. Therefore, a transfer operation is performed by applying pressure after the photosensitive material and the image receiving material are superposed on each other.

However, in the conventional image-receiving material, the image-receiving material causes so-called positive curling with the surface on the image-receiving layer side facing inward under low humidity or high humidity, so that this paper feeding operation cannot be performed smoothly. There were cases. Further, when it is attempted to separate the photosensitive material and the image receiving material after passing through the pressure transfer device, the image receiving material curls to the side of the photosensitive material, so that the peeling operation may not be performed smoothly in some cases.
An object of the present invention is to provide an image forming method using an image receiving material which is excellent in sheet feeding and transporting property and peeling property under low humidity or high humidity.

[0008]

SUMMARY OF THE INVENTION The present invention comprises:
A photosensitive material having a photosensitive layer containing at least a polymerizable compound, a color image-forming substance, a reducing agent, and a microcapsule containing a photosensitive silver halide, on which a polymerizable compound is imagewise polymerized, and then on a paper support. And having an image-receiving layer, the surface opposite to the side provided with the image-receiving layer is coated with 1% by weight or more and 20% by weight or less of the amount of water applied when the image-receiving layer is formed.
The present invention provides an image forming method for forming an image on an image receiving material by applying pressure in a state where the dried image receiving material and the photosensitive material are superposed on each other.

Further, the present invention image-forms a polymerizable compound of a photosensitive material having a photosensitive layer containing microcapsules containing at least a photopolymerization initiator, a color image-forming substance, and a polymerizable compound on a support. After the polymerization, the paper support has an image receiving layer, and on the surface opposite to the side provided with the image receiving layer,
1% by weight or more of the amount of water applied when the image receiving layer is formed,
An image forming method for forming an image on an image receiving material by applying pressure in a state where the image receiving material coated and dried with 20% by weight or less of water and the light sensitive material are superposed. Is provided.

According to the research conducted by the present inventor, a conventionally known image-receiving material (for example, the image-receiving material described in Examples of JP-A-3-69950) has an image-receiving layer (image forming and fixing) on a support. The layer having the function of) is provided, and the aqueous coating liquid is applied only to one surface of the paper support,
It was applied and dried. With such image receiving materials, curling of the image receiving material hardly occurred at room temperature and normal humidity, but when handled in an environment of low humidity or high humidity, extreme positive curling occurs and the paper is fed and conveyed. It turns out that it may cause trouble.
It was also found that even when a peeling operation was performed, troubles were likely to occur, and further, filing of the transferred image may be hindered.

To solve these problems, as is conventionally known for coated paper, by applying water to the opposite surface, extreme positive curling of the image receiving material under low or high humidity can be achieved. It was necessary to prevent it. When extreme positive curling is prevented, it is presumed that the photosensitive material and the image receiving material are naturally separated from each other and the peeling operation is smooth. In the image forming method of the present invention, since the image is transferred by pressing, the curling after the transfer becomes smaller than that before the transfer, and the problem of filing can be solved at the same time.

To solve these problems, an image-receiving material having an image-receiving layer on a paper support according to the present invention is provided with an image-receiving layer on the surface of the support of the image-receiving material opposite to the side provided with the image-receiving layer. The problem can be solved by providing an image receiving material characterized in that 1% by weight or more and 20% by weight or less of water applied when formed is applied and dried. In particular, when drying was performed while applying a tension of 1 g / cm or more, it was effective in reducing the trouble of the paper feeding operation in the environment of low humidity or high humidity. When the amount of water applied is 1% by weight or less of the amount of water applied when the image-receiving image is formed, positive curling cannot be corrected and the amount of water added is 20% by weight.
In the above cases, the image receiving material was wrinkled during drying and lacked in dimensional stability.

The image receiving material that can be used in the image forming method of the present invention will be described below. For the general image forming method using the image receiving material, see JP-A-61-2.
It is described in Japanese Patent No. 78849. The image receiving material that can be used in the present invention is an image receiving material having an image receiving layer on a paper support, and the image receiving layer is formed on the surface of the support of the image receiving material opposite to the side provided with the image receiving layer. 1 of the amount of water applied when
Water is applied and dried in an amount of 20% by weight or more and 20% by weight or less. Therefore, the image-receiving material is prepared by first applying the image-receiving layer forming coating solution on one surface of the support and drying the image-receiving layer at the same time or after drying the image-receiving layer and then applying the image-receiving layer on the opposite side. The surface is coated with water in an amount of 1% by weight or more and 20% by weight or less of the amount of water applied when the image receiving layer was formed, and dried. Usually, it is preferable that after the image receiving layer is dried, water is applied to the surface opposite to the side provided with the image receiving layer.

As a method of applying water, a conventionally known dip coating method, air knife coating method, curtain coating method, roller coating method, doctor coating method, gravure coating method or the like can be used. The coating amount of water needs to be adjusted according to various factors such as the solid coating amount of the image receiving layer, the physical properties of the paper support (basis weight, thickness, etc.), the drying temperature when forming the image receiving layer, the coating water amount, etc. The amount of water applied when the image receiving layer is formed is preferably 1% by weight or more and 20% by weight or less. Incidentally, usually, the range of 1g / m ² ~15g / m ² is preferred. The tension applied to the image receiving material during water application is preferably 1 g / cm or more, and it is preferable to apply the tension only in the MD direction of the support.

Next, the image receiving layer of the image receiving material will be described.

The image-receiving layer of the image-receiving material is composed of a white pigment, a binder, and other additives, and it is considered that the white pigment itself or the voids between the particles of the white pigment receive a polymerizable compound and a color image-forming substance such as a pigment. To be

As the white pigment used in the image receiving layer of the present invention, any of conventionally known white pigments can be used. Specific examples of white pigments include inorganic white pigments such as silicon oxide, titanium oxide, zinc oxide, and magnesium oxide.
Oxides such as aluminum oxide, magnesium sulfate, barium sulfate, calcium sulfate, magnesium carbonate, barium carbonate, calcium carbonate, calcium silicate, magnesium hydroxide, magnesium phosphate, alkaline earth metal salts such as magnesium hydrogen phosphate, Other examples include aluminum silicate, aluminum hydroxide, zinc sulfide, various clays, talc, kaolin, zeolite, acid clay, activated clay, glass and the like. Examples of organic white pigments include polyethylene, polystyrene, benzoguanamine resins, urea-formalin resins, melamine-formalin resins, and polyamide resins. These white pigments may be used alone or in combination, but those having a high oil absorption amount with respect to the polymerizable compound are preferable. These white pigments can be used after surface treatment. For the surface treatment, a conventionally known method can be used.

As the binder used in the image-receiving layer of the present invention, a water-soluble polymer, a polymer latex, a polymer soluble in an organic solvent or the like can be used. As the water-soluble polymer, for example, carboxymethyl cellulose, hydroxyethyl cellulose, cellulose derivatives such as methyl cellulose, gelatin, phthalated gelatin, casein, proteins such as ovalbumin, starches such as dextrin, etherified starch, polyvinyl alcohol,
Polyvinyl alcohol partial acetal, poly-N-vinyl pyrrolidone, polyacrylic acid, polymethacrylic acid, polyacrylamide, synthetic polymers such as polyvinyl imidazole, polyvinyl pyrazole, polystyrene sulfonic acid, etc., locust bean gum, pullulan, gum arabic, alginic acid Examples of natural polymer substances such as soda.

Examples of the polymer latex include styrene-butadiene copolymer latex, methyl methacrylate / butadiene copolymer latex, polymers of acrylic acid ester and / or methacrylic acid ester, or copolymer latex, ethylene / vinyl acetate copolymer. Polymer latex etc. are mentioned. Examples of the polymer soluble in an organic solvent include polyester resin, polyurethane resin, polyvinyl chloride resin, polyacrylonitrile resin and the like.

As a method of using the above binder, two or more kinds can be used, and further, two kinds of binders can be used together in such a ratio as to cause phase separation. As an example of such usage, JP-A-1-154789
There is a description in the official gazette. The average particle size of the white pigment is 0.
It is 1 to 20 μ, preferably 0.1 to 10 μ, and the coating amount is in the range of 0.1 to 60 g, preferably 0.5 to 30 g. The weight ratio of the white pigment to the binder is preferably in the range of 0.01 to 0.4 of binder with respect to 1 of pigment, and the binder is preferably 0.1 to 0.4.
The range of 03 to 0.3 is more preferable.

In addition to the binder and the white pigment, the image-receiving layer may contain various additives as described below. For example, when a color-developing system comprising a color-developing agent and a color-developing agent is used, the image-receiving layer may contain the color-developing agent. Typical developers include phenols, organic acids or salts thereof, or esters, but when a leuco dye is used as a color image forming substance, a zinc salt of a salicylic acid derivative is preferable, Above all,
Zinc 3,5-di-α-dimethylbenzylsalicylate is preferred. The above color developer is contained in the image receiving layer in an amount of 0.1 to 50 g / m ²
It is preferable that the amount of coating is within the range. More preferably, it is in the range of 0.5 to 20 g / m ² .

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 formed as an aggregate of thermoplastic compound fine particles. The image-receiving layer having the above-described structure has an advantage that a transfer image can be easily formed and a glossy image can be obtained by heating after the image formation. The thermoplastic compound is not particularly limited and can be arbitrarily selected and used from known plastic resins (plastics) and waxes. However, the glass transition point of the thermoplastic resin and the melting point of the wax are preferably 200 ° C. or lower. The image receiving material having an image receiving layer containing the above-mentioned thermoplastic compound fine particles is described in JP-A Nos. 62-280071 and 62-280739.

The image-receiving layer may contain a photopolymerization initiator or a thermal polymerization initiator. In image formation using the image receiving material, the color image forming substance is transferred together with the unpolymerized polymerizable compound. Therefore, a photopolymerization initiator or a thermal polymerization initiator can be added to the image-receiving layer for the purpose of curing (fixing) the unpolymerized polymerizable compound. An image receiving material having an image receiving layer containing a photopolymerization initiator is disclosed in JP-A-62-161149, and an image receiving material having an image receiving layer containing a thermal polymerization initiator is disclosed in JP-A-62-161149.
Each of them is described in Japanese Patent Publication No. 210444. A paper support is preferred as the support of the image receiving material. Specifically, base paper (non-coated paper), fine paper, art paper, coated paper,
Cast coated paper, baryta paper, wallpaper, backing paper, synthetic resin or emulsion impregnated paper, synthetic rubber latex impregnated paper, synthetic resin internal paper, paperboard, cellulose fiber paper, polyolefin coated paper (especially paper coated on both sides with polyethylene) Coated paper such as Note that "Public Technology No. 5
No. ”(Aztec Co., Ltd., issued March 22, 1991), pages 144 to 149, it is also preferable to use the paper support.

Next, a light-sensitive material that can be used in the present invention will be described. The light-sensitive material has microcapsules containing at least a polymerizable compound and a color image-forming substance on a support. When used in the image forming method of the present invention described below, in order to polymerize a polymerizable compound in an image form, this photosensitive material is generally provided on a support, at least a silver halide, a reducing agent, a color image. Of the first embodiment having microcapsules encapsulating a forming substance and a polymerizable compound, and a second having microcapsules encapsulating at least a photopolymerization initiator, a color image-forming substance and a polymerizable compound on a support. The embodiment of the present invention is included. However, the present invention is not limited to these two types of embodiments, and is not limited to JP-A-62-176.
An image recording material having microcapsules containing a thermal polymerization initiator, a polymerizable compound and a pigment described in Japanese Patent No. 893 can also be used.

In the following description, the first and second aspects are taken up. Since these write image information with light, a layer having microcapsules is referred to as a “photosensitive layer”. First, the silver halide, the reducing agent, the color image-forming substance and the polymerizable compound, which are the main components of the light-sensitive material of the first aspect, will be sequentially described.

In the light-sensitive material of the present invention, as silver halide, any one of silver chloride, silver bromide, silver iodide, silver chlorobromide, silver chloroiodide, silver iodobromide and silver chloroiodobromide can be used. Particles can also be used.

The silver halide grains in the photographic emulsion have regular crystals such as cubes, octahedra, dodecahedrons and tetradecahedrons, and irregular crystal systems such as spheres and plates. It may have a crystal defect such as a twin crystal plane or a twin crystal plane, or a composite form thereof.

The grain size of the silver halide may be fine grains of about 0.01 micron or less or large grains having a projected area diameter of up to about 10 microns, and a polydisperse emulsion or US Pat. No. 3,574,628 may be used. No. 3, ibid. 3,655,394
And monodisperse emulsions described in British Patent No. 1,413,748 and the like may be used.

Further, tabular grains having an aspect ratio of about 5 or more can be used in the present invention. Tabular grains are described in Gutoff, Photographic Science and E.
ngineering), Vol. 14, pp. 248-257 (1970)
); U.S. Pat. Nos. 4,434,226 and 4,41
4,310, 4,433,048, 4,43
It can be easily prepared by the method described in 9,520 and British Patent No. 2,112,157.

The crystal structure may be uniform, may have different halogen compositions inside and outside, or may have a layered structure. Further, silver halides having different compositions may be joined by epitaxial joining,
Further, it may be bonded to a compound other than silver halide such as silver rhodanide and lead oxide. Also, the halogen composition,
Two or more kinds of silver halide grains having different crystal walls, grain sizes and the like can be used in combination.

The silver halide photographic emulsion which can be used in the present invention is, for example, Research Disclosure (RD) No.
17643 (December 1978), pp. 22-23,
"I. Emulsion preparation and types",
And ibid. No. 18716 (November 1979), 648.
It can be prepared using the method described in page, etc.

The silver halide emulsion is usually one which has been physically ripened, chemically ripened and spectrally sensitized. Additives used in such a process are described in Research Disclosure No. 17643 and No. 18716, and the corresponding portions are summarized in the table below.

Known photographic additives that can be used in the present invention are also described in the above two Research Disclosures, and the relevant portions are shown in the following table.

[0034]       Additive type RD17643 RD18716       Chemical sensitizer page 23 page 648 right column       Sensitivity enhancer Same as above       Spectral sensitizer, page 23-24, page 648, right column-       Supersensitizer, page 649, right column       Antifoggant, pages 24 to 25, page 649, right column       And stabilizers

The details of the above silver halide emulsion and photographic additives are described in the above-mentioned "Known Technology No. 5", pp. 2-.
It is described on page 17. The amount of silver halide used is 0.001 to 10 g, preferably 0.05 to ² g, in terms of silver per 1 m ² of the light-sensitive material. Further, in the present invention, an organic silver salt can be used together with silver halide. The organic silver salt is described on pages 17 to 18 of "Public Technology No. 5" mentioned above.

The reducing agent which can be used in the light-sensitive material of the present invention has a function of reducing silver halide and / or a function of accelerating (or suppressing) the polymerization of the polymerizable compound. Examples of the reducing agent having the above function include hydroquinones, catechols, p-aminophenols, p-phenylenediamines, 3-pyrazolidones, 3-aminopyrazoles, 4-amino-5-pyrazolones and 5-amino. Uracils, 4,5-dihydroxy-6-aminopyrimidines, reductones, aminoreductones, o-
Or p-sulfonamidophenols, o- or p
-Sulfonamidonaphthols, 2,4-disulfonamidophenols, 2,4-disulfonamidonaphthols, o- or p-acylaminophenols, 2-
Sulfonamide indanones, 4-sulfonamido-5
-Pyrazolones, 3-sulfonamidoindoles, sulfonamidepyrazolobenzimidazoles, sulfonamidepyrazolotriazoles, α-sulfonamidoketones, hydrazines and the like.

The various reducing agents described above are described in detail on pages 18 to 35 of the above-mentioned known technique No. 5.
The addition amount of the reducing agent can be widely varied, but is generally 0.1 to 1500 mol%, preferably 10 to 10 mol% with respect to the silver salt.
It is 300 mol%. The color image-forming substance that can be used in the light-sensitive material of the present invention is not particularly limited, and various types can be used. That is, the substance itself is colored (dye or pigment), or the substance itself is colorless or light-colored but external energy (heating, pressure, light irradiation, etc.) or another component (developing agent) A substance (color former) that develops a color upon contact with is also included in the color image forming substance. As the color image-forming substance of the present invention, as described in JP-A-62-187346, dyes and pigments which are excellent in image stability and colored themselves are preferable.

The dyes and pigments used in the present invention include
In addition to commercially available products, known products described in various documents can be used. Regarding literature, Color Index (CI) handbook, "Latest Pigment Handbook" edited by Japan Pigment Technology Association (1977), "Latest Pigment Application Technology" CMC Publishing (1986), "Printing Ink Technology" (CMC Publishing) ,
1984) etc. Details of the color image-forming substance that can be used in the present invention and the technique for using the same are described in the above-mentioned "Known Technique No. 5", pp. 35-50. In particular, the pigment is preferable because it has excellent light fastness and causes less blurring of an image during transfer. The pigment is preferably used in a proportion of 5 to 60 parts by weight with respect to 100 parts by weight of the polymerizable compound.

The polymerizable compound is not particularly limited, and known polymerizable compounds can be used. Further, since the photosensitive material is intended to immobilize the pigment by polymerizing and curing the polymerizable compound, the polymerizable compound is preferably a crosslinkable compound having a plurality of polymerizable functional groups in the molecule.

The polymerizable compounds that can be used in the light-sensitive material are described in the application specifications for a series of light-sensitive materials described above and below. The polymerizable compound used in the light-sensitive material is generally a compound having addition polymerization or ring-opening polymerization. The compound having an addition-polymerizable group includes a compound having an ethylenically unsaturated group, and the compound having a ring-opening polymerizable group includes a compound having an epoxy group. A compound having an ethylenically unsaturated group is particularly preferable.

Examples of the compound having an ethylenically unsaturated group which can be used in the light-sensitive material include acrylic acid and its salts, acrylic acid esters, acrylamides, methacrylic acid and its salts, methacrylic acid esters and methacrylamides. , Maleic anhydride, maleic acid esters, itaconic acid esters, styrenes, vinyl ethers, vinyl esters, N-vinyl heterocycles, allyl ethers, allyl esters and their derivatives.

Specific examples of the polymerizable compound that can be used in the light-sensitive material are acrylic acid esters,
n-butyl acrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, benzyl acrylate, furfuryl acrylate, ethoxyethoxyethyl acrylate, tricyclodecanyloxy acrylate, nonylphenyloxyethyl acrylate, 1,
3-dioxolane acrylate, hexanediol diacrylate, butanediol diacrylate, neopentyl glycol diacrylate,

Tricyclodecane dimethylol diacrylate, trimethylol propane triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, diacrylate of polyoxyethylenated bisphenol A, 2- (2-hydroxy) -1,
1-dimethylethyl) -5-hydroxymethyl-5-ethyl-1,3-dioxane diacrylate, 2- (2-
Hydroxy-1,1-dimethylethyl) -5,5-dihydroxymethyl-1,3-dioxane triacrylate, triacrylate of propylene oxide adduct of trimethylolpropane, polyacrylate of hydroxypolyether, polyester acrylate, ditrimethylolpropane Examples of the propylene oxide adduct such as tetraacrylate and polyurethane acrylate are listed.

As another specific example, regarding methacrylic acid esters, methyl methacrylate, butyl methacrylate, ethylene glycol dimethacrylate, butanediol dimethacrylate, neopentyl glycol dimethacrylate, trimethylolpropane trimethacrylate, pentaerythritol trimethacrylate,
Examples thereof include pentaerythritol tetramethacrylate and dioxymethacrylate of polyoxyalkylenated bisphenol A.

The above polymerizable compounds may be used alone or in combination of two or more kinds. Regarding a light-sensitive material in which two or more kinds of polymerizable compounds are used in combination, see JP-A-62-210445.
It is described in the official gazette. As a method of using the light-sensitive material, it is preferable to use a compound having a high boiling point (for example, a boiling point of 80 ° C. or higher) that is difficult to volatilize during heating when heat treatment is performed. In the light-sensitive material of the first aspect, the polymerizable compound is preferably used in the range of 50,000 to 120,000 parts by weight, more preferably 12 to 12,000 parts by weight, based on 1 part by weight of silver halide. In addition, the pigment is
It is preferably used in the range of 5 to 120 parts by weight, more preferably 10 to 60 parts by weight, based on 100 parts by weight of the polymerizable compound.

Next, organic silver salts, radical generators, bases, base precursors, thermal solvents and compounds having a function of removing oxygen, which are components that can be optionally used in the light-sensitive material of the first aspect, are sequentially described. explain. In the present invention, an organic metal salt can be used as an oxidizing agent together with the photosensitive silver halide. Among such organic metal salts, organic silver salts are particularly preferably used.

Organic compounds that can be used to form the above organic silver salt oxidizing agent include those described in US Pat. No. 4,500,6.
Benzotriazoles, fatty acids and other compounds described in No. 26, columns 52 to 53. In addition, JP-A-60-1
A silver salt of a carboxylic acid having an alkynyl group such as silver phenylpropiolate described in Japanese Patent No. 13235;
The acetylene silver described in each of JP-A Nos. 1-249044 and 64-57256 is also useful. Two or more kinds of organic silver salts may be used in combination. The above organic silver salt is used in combination with silver halide in an amount of 0.01 to 10 mol, preferably 0.01 to 10 mol, and preferably 0.01 to 1 mol, per 1 mol of photosensitive silver halide. You can

A radical generator which participates in the polymerization promoting (or polymerization suppressing) reaction of the reducing agent may be added to the photosensitive layer. For a light-sensitive material using silver triazene as the above-mentioned radical generator, see JP-A-62-19563.
No. 9 discloses a light-sensitive material using silver diazotate in JP-A No. 62-195640, and a light-sensitive material using an azo compound in JP-A No. 62-195641. The light-sensitive material of the present invention may further contain a base or a base precursor as an image formation accelerator.

As bases and base precursors that can be used in the light-sensitive material of the present invention, inorganic bases and organic bases, or base precursors thereof (decarboxylation type, thermal decomposition type, reaction type, complex salt forming type, etc.) are used. it can. Details of these base precursors and the techniques for using them are described in "Public Technology No. 5," pages 55-86.

Preferred base precursors are JP-A-59-180549, 59-180537, 59-195237, 61-32844 and 61.
-36743, 61-51140, 61-52.
No. 638, No. 61-52639, No. 61-53631.
No. 61-53634, No. 61-53635, No. 61-53636, No. 61-53637, No. 61-
53638, 61-53639, 61-536.
40, 61-55644, 61-55645.
No. 61, No. 61-55646, No. 61-84640, No. 61-107240, No. 61-2119950, No. 6
1-251840, 61-252544, 61
-313431, 63-316740, 64-
No. 68746 and Japanese Patent Application No. 62-209138, salts of organic acids and bases that are decarboxylated by heating, and JP-A-59-157637 and 59-16.
Examples thereof include the compounds described in JP-A-6943 and JP-A-63-96159, which eliminate a base by heating.

The base precursor of the present invention is 50
It is preferable to release the base at ℃ to 200 ℃, 80
More preferably, the release is carried out at a temperature of 180 to 180 ° C. In the present invention, the base precursor is preferably contained in the microcapsules in order to further accelerate the heat development reaction. In that case, a base precursor composed of a salt of a carboxylic acid and an organic base having a solubility of 1% or less in water and a polymerizable compound at 25 ° C. is preferable.

In the present invention, when the base precursor is contained in the microcapsules, a photosensitive composition in which the base precursor is directly solid-dispersed in a polymerizable compound may be used (Japanese Patent Laid-Open No. 322251/64, Kaihei 1-2
It is particularly preferable to use a photosensitive composition in which a base precursor is dispersed in water and emulsified in a polymerizable compound. (JP-A-63-21
No. 8964, Japanese Patent Application No. 1-182245, Japanese Patent Application No. 1-1
No. 60148 gazette and specification) Here, when dispersing the base precursor in water, it is preferable to use a nonionic or amphoteric water-soluble polymer.

Examples of nonionic water-soluble polymers are polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide, polymethyl vinyl ether, polyacryloylmorpholine, polyhydroxyethyl acrylate, polyhydroxyethyl methacrylate-co-acrylamide, hydroxyethyl cellulose, hydroxy. Examples thereof include propyl cellulose and methyl cellulose. Further, as the amphoteric water-soluble polymer,
Mention may be made of gelatin.

The above water-soluble polymer is preferably contained in the base precursor in a proportion of 0.1 to 100% by weight, and more preferably in a proportion of 1 to 50% by weight. The base precursor is preferably contained in the dispersion in an amount of 5 to 60% by weight, more preferably 10 to 50% by weight. Further, the base precursor is preferably contained in a proportion of 2 to 50% by weight with respect to the polymerizable compound,
It is more preferable that the content is 5 to 30% by weight.

In order to reduce the solubility of the base precursor in the polymerizable compound, polymerization of polyethylene glycol, polypropylene glycol, benzoic acid amide, cyclohexylurea, octyl alcohol, dodecyl alcohol, stearyl alcohol, stearoamide, etc. in the polymerizable compound is carried out. Soluble in organic compounds, and -OH,
-SO ₂ NH _2, -CONH _2, it is also possible to add a compound having a hydrophilic group such as -NHCONH _2.

Various antifoggants or photographic stabilizers can be used in the present invention. Examples thereof include azoles and azaindenes described in RD17643 (1978), pages 24 to 25, JP-A-59-1684.
42-containing nitrogen-containing carboxylic acids and phosphoric acids,
Alternatively, mercapto compounds and metal salts thereof described in JP-A-59-111636, JP-A-62-87959.
The acetylene compounds and the like described in the publication are used.

Various development stoppers can be used in the light-sensitive material for the purpose of always obtaining a constant image with respect to the processing temperature and processing time during development. The term "development terminating agent" as used herein refers to a compound that immediately neutralizes or reacts with a base to reduce the concentration of the base in the film to stop the development after proper development, or inhibits development by interacting with silver and a silver salt. Compound. Specific examples thereof include an acid precursor that releases an acid when heated, an electrophilic compound that causes a substitution reaction with a coexisting base when heated, or a nitrogen-containing heterocyclic compound, a mercapto compound and a precursor thereof. For further details, see JP-A-62-253159, pages (31) to (32), Japanese Patent Application No. 1-724.
No. 79, No. 1-3471, etc. are described. As the hot solvent, a compound which can be a solvent for the reducing agent, a compound which is a substance having a high dielectric constant and is known to accelerate the physical development of the silver salt, and the like are useful. Useful thermal solvents, polyethylene glycols U.S. Patent No. 3347675 Pat described derivatives such as oleic acid esters of polyethylene oxide, beeswax, glycerol monostearate, -SO ₂
A compound having a high dielectric constant having a-and / or -CO- group, a polar substance described in U.S. Pat. No. 3,667,959, 1,10-decanediol described in Research Disclosure, December 1976, pages 26 to 28, Methyl anisate, biphenyl suberate and the like are preferably used. A light-sensitive material using a hot solvent is described in JP-A-62-86355.

The compound having a function of removing oxygen can be used for the purpose of eliminating the influence of oxygen during development (oxygen has a polymerization inhibiting action). Examples of the compound having an oxygen removing function include compounds having two or more mercapto groups. A light-sensitive material using a compound having two or more mercapto groups is described in JP-A-62-209443.
Further, a liquid having an oxygen blocking effect may be applied to the photosensitive layer of the outer shell of the microcapsule for development. Water is a specific example of the liquid.

The thermal polymerization initiator which can be used in the light-sensitive material is generally a compound which thermally decomposes under heating to generate a polymerization initiation species (particularly a radical) and is usually used as an initiator of radical polymerization. is there. Regarding the thermal polymerization initiator, pages 6 to 1 of “Additional Polymerization / Ring-Opening Polymerization”, edited by Editorial Committee of Polymer Society for Polymer Science, 1983, Kyoritsu Shuppan)
It is described on page 8 and the like.

Specific examples of the thermal polymerization initiator include azobisisobutyronitrile, 1,1'-azobis (1-cyclohexanecarbonyltolyl), dimethyl-2,2'-azobisisobutyrate and 2,2. -Azo compounds such as azobis (2-methylbutyronitrile) and azobisdimethylvaleronitrile, benzoyl peroxide, di-t-butyl peroxide, dicumyl peroxide, t-butyl hydroperoxide, cumene hydroperoxide, etc. And organic peroxides such as hydrogen peroxide, potassium persulfate and ammonium persulfate, and sodium p-toluenesulfinate.

The thermal polymerization initiator is 0.
It is preferably used in the range of 1 to 120% by weight,
More preferably, it is used in the range of 1 to 10% by weight. In the system in which the polymerizable compound in the portion where the latent image of silver halide is not formed is polymerized, it is preferable to add a thermal polymerization initiator to the photosensitive layer. Further, regarding a light-sensitive material using a thermal polymerization initiator, JP-A-62-70836 is used.
It is described in the official gazette.

In the light-sensitive layer of the light-sensitive material of the first embodiment, similar to the above-mentioned thermal polymerization initiator, it is used in a system for polymerizing a polymerizable compound in a portion where a latent image of silver halide is not formed, and an image. For the purpose of polymerizing the unpolymerized polymerizable compound after transfer, a photopolymerization initiator as described in the description of the photosensitive material of the second aspect to be described later may be added. For the light-sensitive material using a photopolymerization initiator, see JP-A-62-16114.
It is described in Japanese Patent Publication No. 9. Also, a water releasing agent may be used. Next, the photopolymerization initiator, the pigment and the polymerizable compound, which are the main components of the light-sensitive material of the second aspect, will be sequentially described.

As an example of a preferable photopolymerization initiator, α-
Alkoxyphenyl ketones, polycyclic quinones, benzophenones and substituted benzophenones, xanthones, thioxanthones, halogenated compounds (eg, chlorosulfonyl and chloromethyl and other aromatic compounds,
Chlorosulfonyl and chloromethyl heterocyclic compounds, chlorosulfonyl and chloromethylbenzophenones, and chlorofluorenones), haloalkanes, α-halo-α-phenylacetophenones, photoreducible dye-reducible redox couples, halogen Paraffins (eg, brominated or chlorinated paraffins), benzoylalkyl ethers, and loffin dimer-mercapto compound couples, and JP-A-62-14304.
The organic boron compound anion salt of the organic cationic compound described in JP-A No. 4 can be mentioned, and details are described in "UV Curing System" (1989, Comprehensive Technology Center), pages 63 to 147, etc. Has been done.

As the photopolymerization initiator, the compounds as described above may be used alone or in combination of several kinds. In the light-sensitive material of the present invention, the photopolymerization initiator is preferably used in the range of 0.5 to 30% by weight based on the polymerizable compound used. A more preferable range of use is 2 to 20% by weight. The color image-forming substance and the polymerizable compound that can be used in the light-sensitive material of the second aspect are the same as those in the above-described first aspect. Next, the sensitizer, which is a component that can be optionally used in the light-sensitive material of the second aspect, will be described.

Preferred sensitizers are those which bring about an increase in sensitivity when used in combination with the above-mentioned photopolymerization initiator or photopolymerization initiator, and examples thereof include compounds having active hydrogen in the molecule. Specific examples thereof include N-phenylglycine, trimethylbarbituric acid, 2-mercaptobenzoxazole, 2-mercaptobenzothiazole, 2-mercaptobenzimidazole, and compounds represented by the following general formula (I) or (II). Can be mentioned. General formula (I)

[0066]

[Chemical 1]

In the formula, R ₁ represents an alkyl group, an alkylthio group or a mercapto group. General formula (II)

[0068]

[Chemical 2]

In the formula, R ₂ represents a hydrogen atom or an alkyl group, and R ₃ represents an alkyl group or an aryl group.

In the image forming method of the present invention, the sensitizer is used in an amount of 0.5 to 100 relative to the polymerizable compound used.
It is preferably used in the range of wt%. A more preferred range is 2 to 80% by weight.

Hereinafter, common items regarding the photosensitive materials of the first and second aspects will be described. A silver halide, a reducing agent, a color image-forming substance and a polymerizable compound which are main components in the first aspect, or a photopolymerization initiator, a color image-forming substance which is a main component in the light-sensitive material of the second aspect, And the polymerizable compound is used in a microencapsulated state. The light-sensitive material is composed of a light-sensitive layer containing the microcapsules and a support, and the aforementioned "optionally usable component" may be present in the microcapsules in the light-sensitive layer. However, it may be present in the photosensitive layer outside the microcapsules. Hereinafter, the microcapsules, the components that can be optionally used, and the support will be sequentially described.

The microcapsules that can be used in the present invention are not particularly limited and various known techniques can be applied, and are described in detail in "Known Technique No. 5", pages 88 to 98. In the present invention, it is particularly preferable to use a melamine-formaldehyde resin, since a highly dense capsule can be obtained. In addition, JP-A 1-3
In order to obtain capsules having particularly excellent wall compactness, the specification of 7782 discloses that melamine is formed around a film composed of a reaction product of a water-soluble polymer having a sulfinic acid group and a polymerizable compound having an ethylenically unsaturated group. A microcapsule provided with a polymer wall of a high molecular compound such as formaldehyde resin is disclosed, which is preferable for the present invention. When aminoaldehyde-based microcapsules are used, as in the light-sensitive material described in JP-A-63-32535,
It is preferable that the amount of residual aldehyde is not more than a certain value.
The method is described in JP-A-63-142343. The average particle size of the microcapsules is 1 to 50 μm
, Preferably 3 to 20 μm. The particle size distribution of the microcapsules is preferably uniform over a certain value, as in the light-sensitive material described in JP-A-63-5334. The film thickness of the microcapsules is preferably within a certain range with respect to the particle diameter, as in the light-sensitive material described in JP-A-63-81336.

When accommodating the silver halide in the microcapsules according to the first aspect of the present invention, the average grain size of the silver halide grains should be one fifth or less of the average size of the microcapsules. Is preferred and 1
It is more preferable to set it to 1/0 or less. By setting the average grain size of the silver halide grains to be one fifth or less of the average size of the microcapsules, a uniform and smooth image can be obtained.

When the silver halide is contained in the microcapsules, it is preferable that the silver halide be present in the wall material forming the outer shell of the microcapsules. A light-sensitive material containing silver halide in the microcapsule wall material is described in JP-A-62-169147.

In the production of the photosensitive microcapsules of the present invention, when an oily liquid containing at least a silver halide, a reducing agent, a color image-forming substance and a polymerizable compound is dispersed in an aqueous medium, Preferably, a nonionic water-soluble polymer and an anionic water-soluble polymer are included. In this case, the oily liquid containing the polymerizable compound is preferably 10 to 120% by weight, more preferably 20 to 90% by weight, based on the aqueous medium.

Examples of the nonionic water-soluble polymer include polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide, polymethyl vinyl ether, polyacryloylmorpholine, polyhydroxyethyl acrylate, polyhydroxyethyl methacrylate-coacrylamide, hydroxyethyl cellulose, hydroxypropyl. Examples thereof include cellulose and methyl cellulose.

Examples of the anionic water-soluble polymer include polystyrene sulfinic acid, styrene sulfinate copolymer, polystyrene sulfonate, styrene sulfonic acid copolymer, polyvinyl sulfate ester salt, polyvinyl sulfonate, Examples thereof include maleic anhydride / styrene copolymer and maleic anhydride / isobutylene copolymer. In this case, the concentration of the anionic water-soluble polymer in the aqueous medium is preferably 0.01 to 5% by weight, more preferably 0.1 to 2% by weight. In the above case, it is particularly preferable to use the nonionic water-soluble polymer in combination with the water-soluble polymer having a small amount of sulfinic acid groups.

In order to reduce the solubility of the base precursor in the polymerizable compound, polyethylene glycol, polypropylene glycol, benzoic acid amide, cyclohexylurea, octyl alcohol, dodecyl alcohol, stearyl alcohol, stearamide and the like can be used in the polymerizable compound. OH, -SO ₂ NH _2, -CONH
_{It is} also possible to add a compound having a hydrophilic group such as ₂ , ₂ , -NHCONH ₂ .

In the present invention, in addition to the reducing agent, known antioxidants for preventing oxidative deterioration of the polymerizable compound and for preventing oxygen oxidation during heat development can be used together with the polymerizable compound. As such an antioxidant, 2,2 '
-Methylene-bis- (4-methyl-6-t-butylphenol), 2,6-di-t-butylphenol-2,
2'-butylidene-bis- (4-methyl-6-t-butylphenol), 2-t-butyl-6- (3'-t-butyl-5'-methyl-2'-hydroxybenzyl) -4
-Methylphenyl acrylate, 4,4'-thio-bis- (3-methyl-6-t-butylphenol) and other phenolic antioxidants; diphenyldecyl phosphite,
Triphenyl phosphite, tris- (2,4-di-t
-Butylphenyl) phosphite, tris- (2-ethylhexyl) phosphite, and other phosphite-based antioxidant acids; dilauryl-3,3'-thio-dipropionic acid ester, pentaerythritol-tetrakis- (β-lauryl-thio) -Propionate), thio-dipropionic acid and other sulfur-based antioxidants; phenyl-1-naphthylamine, 6-ethoxy-2,2,4-trimethyl-
Examples include amine antioxidants such as 1,2-dihydroquinoline and dioctyliminodibenzyl.

Materials that can be used for the support include glass, paper, high-quality paper, baryta paper, coated paper, cast coated paper, synthetic paper, metal and its analogs, polyester, polyethylene, polypropylene, acetyl cellulose, cellulose. Ester, polyvinyl acetal,
Examples thereof include films such as polystyrene, polycarbonate, polyethylene terephthalate, and polyimide, and paper laminated with a resin material or a polymer such as polyethylene. For details, refer to “Public Technology No. 5” above.
No. "pp. 144-149. In particular, in the case of the first aspect, it is preferable to use a material having good thermal conductivity. Among them, the preferred support of the present invention is a polymer film, and it is particularly preferred that it is a polymer film of 50 μm or less in view of the above-mentioned thermal conductivity.

Further, in order to coat the support with a photosensitive layer,
It is preferable to provide the undercoat layer described in JP-A-61-113058 on the polymer film, or to provide a metal vapor deposition film of aluminum or the like on the polymer film.
Therefore, as the support of the light-sensitive material of the present invention, 50 μm
A polymer film having the following thickness and having an aluminum vapor deposition film is particularly preferable.

Other components that can be used in the light-sensitive material of the present invention will be described below. Details of these components are described in the above-mentioned "Known Technology No. 5", pp. 98-144 and 86-.
It is described on page 88. The binder that can be used in the light-sensitive material can be contained in the light-sensitive layer alone or in combination. It is preferable to mainly use a hydrophilic binder. As the hydrophilic binder, a transparent or translucent hydrophilic binder is typical. For example, natural substances such as gelatin, gelatin derivatives, cellulose derivatives, starch, gum arabic, etc., and polyvinyl alcohol, polyvinylpyrrolidone, acrylamide polymers, etc. Synthetic polymers such as water-soluble polyvinyl compounds. Other synthetic polymeric materials include dispersed vinyl compounds in the form of latices, which increase the dimensional stability of photographic materials in particular. The light-sensitive material using a binder is described in JP-A-61-69062. A light-sensitive material using a binder together with microcapsules is described in JP-A-62-209525.

As the anti-smudge agent used in the light-sensitive material, particulate matter which is solid at room temperature is preferable. Specific examples thereof include starch particles described in British Patent No. 1232347, polymer fine powder described in U.S. Pat. No. 3,625,736, and microcapsule particles containing no color former described in British Patent No. 12359991. US Patent No. 2
Examples include cellulose fine powder described in No. 711375, talc, kaolin, bentonite, wax, inorganic particles such as zinc oxide, titanium oxide and alumino. The average particle size of the particles is preferably in the range of 3 to 50 μm in volume average diameter, and more preferably in the range of 5 to 40 μm. As described above, when the oil droplets of the polymerizable compound are in the microcapsule state, it is more effective that the particles are larger than the microcapsules. Various image formation accelerators can be used in the light-sensitive material.

The image forming accelerator has a function of accelerating the transfer of a base or a base precursor, accelerating the reaction between a reducing agent and a silver salt, accelerating the immobilization of a dye-donor substance by polymerization, and the like. From such functions, it is classified into the above-mentioned bases or base precursors, nucleophilic compounds, oils, thermal solvents, surfactants, compounds that interact with silver or silver salts, compounds having an oxygen scavenging function, and the like. However, these substance groups generally have a composite function and usually have some of the above-mentioned accelerating effects together. For details of these, see US Pat. No. 4,678,739 Nos. 38-40.
Column, JP-A No. 62-209443 and the like, and descriptions in the specification. The hexavalent metal compound described in Japanese Patent Application No. 2-272878 is also effective. Various surfactants can be used in the light-sensitive material for the purpose of coating aid, improvement of peeling property, improvement of sliding property, antistatic property, acceleration of development and the like. Specific examples of the surfactant are disclosed in JP-A-62-173463 and 6-62.
2-183457 and the like.

An antistatic agent may be used in the light-sensitive material for the purpose of antistatic. Research as an antistatic agent
Disclosure, November 1978, No. 1764.
No. 3 (page 27) and the like. Dyes or pigments may be added to the photosensitive layer of the photosensitive material for the purpose of preventing halation or irradiation. A light-sensitive material in which a white pigment is added to the light-sensitive layer is disclosed in JP-A-63-297.
It is described in Japanese Patent No. 48.

A dye having the property of being decolorized by heating or light irradiation may be contained in the microcapsules of the light-sensitive material. The dye having the property of being decolorized by heating or light irradiation can function as a yellow filter in a conventional silver salt photographic system. A light-sensitive material using a dye having the property of being decolorized by heating or irradiation with light as described above is described in JP-A-63-974940.

When a solvent for the polymerizable compound is used in the light-sensitive material, it is preferably used by enclosing it in a microcapsule different from the microcapsule containing the polymerizable compound.
A photosensitive material using an organic solvent miscible with a polymerizable compound encapsulated in microcapsules is disclosed in Japanese Patent Laid-Open No.
It is described in JP-A-2-209524. A water-soluble vinyl polymer may be adsorbed on the above-described silver halide grains for use. A light-sensitive material using a water-soluble vinyl polymer as described above is described in JP-A-62-91652.

In addition to the examples described above, examples of optional components that can be contained in the light-sensitive layer and their usages are also described in the application specification relating to the series of light-sensitive materials described above, and Research Disclosure Vol. 170, 19
No. 17029, June 1978 (pages 9 to 15). As the layer that can be optionally provided in the photosensitive material,
Examples thereof include an image receiving layer, a heating element layer, an antistatic layer, an anti-curl layer, a peeling layer, a cover sheet or a protective layer, and an antihalation layer (colored layer).

A photosensitive material using a heating layer is disclosed in JP-A-61-294434, and a photosensitive material provided with a cover sheet or a protective layer is disclosed in JP-A-62-2.
Japanese Patent Application Laid-Open No. 63-101842 discloses a light-sensitive material provided with a coloring layer as an antihalation layer.
Each of these is described in Japanese Patent Publication No. Further, examples of other auxiliary layers and usage modes thereof are also described in the specification of the series of photosensitive materials described above.

The image forming method using the light-sensitive material of the first aspect and the light-sensitive material of the second aspect which can be used in the present invention will be described below. First, the case where the photosensitive material of the first aspect is used will be described. In the case of the light-sensitive material of the first aspect, the step of exposing imagewise, simultaneously with the imagewise exposure,
Alternatively, after imagewise exposure, an image is formed by a series of steps such as a step of heating the photosensitive material, a step of superposing a surface of the photosensitive material coated with a photosensitive layer and an image receiving material and pressurizing the same.

As the exposure method in the imagewise exposure step, various exposure means can be used, but in general, a latent image of silver halide is obtained by imagewise exposure to radiation including visible light. The type of light source and the amount of exposure depend on the photosensitive wavelength of silver halide (the wavelength sensitized when dye-sensitized)
Alternatively, it can be selected according to the sensitivity.

Typical light sources include low-energy radiation sources such as natural light, ultraviolet rays, visible light, infrared rays, fluorescent lamps, tungsten lamps, mercury lamps, halogen lamps, xenon flash lamps, laser light sources (gas laser, solid laser, Chemical lasers, semiconductor lasers, etc.), light emitting diodes, plasma arc tubes, FOTs and the like. In special cases, it is possible to use X-rays, γ-rays, electron beams, etc., which are high energy ray sources.

The light-sensitive material of the present invention, particularly in the case of a full-color light-sensitive material, is composed of microcapsules having photosensitivity in a plurality of spectral regions, and therefore it is necessary to perform image exposure with a plurality of corresponding spectral lines. Is. Therefore, the above light sources may be used alone or in combination of two or more. When selecting the light source,
It goes without saying that a light source suitable for the photosensitive wavelength of the photosensitive material is selected, but it can be selected in consideration of whether image information passes through an electric signal, the processing speed of the entire system, compactness, power consumption, and the like.

When the image information does not pass through an electric signal, for example, direct photographing of landscapes and people, direct copying of original images,
In the case of exposing through a positive such as a reversal film, an exposure device for printing such as a camera, a printer or an enlarger, an exposure device for a copying machine or the like can be used. In this case, a two-dimensional image can be simultaneously exposed by so-called one shot, or scanning exposure can be performed through a slit or the like. You can also stretch or reduce the original image. In this case, the light source is not a monochromatic light source such as a laser but a light source such as a tungsten lamp or a fluorescent lamp, or a combination of a plurality of monochromatic light sources.

When image information is recorded via electric signals, a light emitting diode and various lasers may be used in combination as the image exposure device in accordance with the color sensitivity of the heat-developable color photosensitive material. Various devices known as image display devices (CRT, liquid crystal display, electroluminescent display, electrochromic display, plasma display, etc.) can also be used. In this case, the image information is an image signal obtained from a video camera or an electronic still camera, a television signal represented by Nippon Television Signal Standard (NTSC),
An image signal obtained by dividing an original image into a large number of pixels with a scanner or the like, or an image signal stored in a recording material such as a magnetic tape or a disk can be used.

Upon exposure of a color image, LEDs, lasers, fluorescent tubes, etc. are used in combination according to the color sensitivity of the light-sensitive material. However, a plurality of the same materials may be used in combination, or different kinds of materials may be used in combination. May be. The color sensitivity of the light-sensitive material is R (red), G (green), B (blue) in the photographic field.
Photosensitivity is normal, but in recent years, it is often used in combination with UV, IR, etc., and the range of use of the light source is expanding. For example, the color sensitivity of the photosensitive material is (G, R, IR)
Or (R, IR (short wave), IR (long wave)),
(UV (short wave), UV (medium wave), UV (long wave)), (U
Spectral regions such as V, B, G) are utilized. The light source may be a combination of different types such as a combination of two LED colors and a laser. The light emitting tube or element may be scanned and exposed by using a single tube or element for each color, or an array tube may be used to increase the exposure speed. Examples of usable arrays include an LED array, a liquid crystal shutter array, and a magneto-optical element shutter array.

The image display device described above is a CRT.
As described above, there are a color display and a monochrome display, but a method of performing exposure several times by combining filters of the monochrome display may be adopted. The existing two-dimensional image display device may be used by making it one-dimensional like FOT, or by dividing one screen into several pieces and using them in combination with scanning.

By the above imagewise exposure step, a latent image is obtained on the silver halide contained in the microcapsules. The image forming method of the present invention includes a step of heating the photosensitive material at the same time as the imagewise exposure or after the imagewise exposure to thermally develop the photosensitive material. Thermal development is preferably performed by heating from the surface of the support on which the photosensitive layer of the photosensitive material is not coated.

As the heating means, Japanese Patent Laid-Open No. 61-29 is available.
As in the light-sensitive material described in Japanese Patent No. 4434, a heating element layer may be provided on the surface of the support on which the light-sensitive layer of the light-sensitive material is not coated to heat it. Further, as described in JP-A-61-147244, a hot plate, an iron, and a heat roller are used, or as described in JP-A-62-144166, a photosensitive material is sandwiched between a heat roller and a belt. You may use the method of heating.

That is, the photosensitive material may be brought into contact with a heating element having a surface area larger than the area of the photosensitive material to heat the entire surface at the same time, or a heating element having a smaller surface area (heating plate,
The entire surface may be heated over time by bringing it into contact with a heat roller, a heat drum, etc. and scanning it.
In addition to the heating method in which the heating element and the photosensitive material are brought into direct contact with each other as described above, electromagnetic waves, infrared rays, hot air or the like can be applied to the photosensitive material to heat it in a non-contact state.

In the image forming method of the present invention, it is preferable to perform heat development by heating from the surface of the photosensitive material on the support on which the photosensitive layer is not coated. At this time, the photosensitive layer is coated. The surface provided may be in direct contact with air, but may be covered with a heat insulating material or the like in order to keep the heat so that heat is not released. In this case, it is preferable not to apply a strong pressure (10 kg / cm ² or more) to the photosensitive layer so as not to destroy the microcapsules contained in the photosensitive layer.

The heat development by heating is carried out at the same time as or after the imagewise exposure, but it is preferable that the heating is carried out at least 0.1 seconds after the imagewise exposure. The heating temperature is generally 60 ° C to 250 ° C, preferably 80 ° C to 180 ° C, and the heating time is between 0.1 seconds and 5 seconds.

The light-sensitive material can be subjected to heat development as described above to polymerize the polymerizable compound in a portion where a latent image of silver halide is formed or a portion where a latent image of silver halide is not formed. When a polymerization inhibitor is formed in the latent image-formed portion of silver halide by the reaction with a reducing agent, heat or photopolymerization initiation which has been added in advance in the photosensitive layer, preferably in the microcapsules. It is also possible to decompose the agent by heating or irradiating it with light to uniformly generate radicals and polymerize the polymerizable compound in the portion where the latent image of silver halide is not formed. In this case, in addition to the above-mentioned imagewise exposure step and heat development step, if necessary, a whole surface heating or whole surface exposure step is required, and the method is the same as the imagewise exposure step or the heat development step.

According to the image-forming method of the present invention, the unpolymerized polymerizable compound is transferred to the image-receiving material by the step of applying pressure in the state where the light-sensitive material having a polymer image and the image-receiving material are superposed on the light-sensitive layer. A color image can be obtained on the material. A conventionally known method can be used as the above-mentioned pressurizing method.

For example, the light-sensitive material and the image-receiving material may be sandwiched between press plates such as a presser, or pressure may be applied while being conveyed using a pressure roller such as a nip roll. The pressure may be intermittently applied by a dot impact device or the like.
Further, high pressure air can be wiped with an air gun or the like, or can be pressurized with an ultrasonic generator, a piezoelectric element or the like. In the image forming method of the present invention, the pressure required for pressurization is 500 kg / cm ² or more, preferably 800 kg / cm ^2.
It is at least cm ² . However, when heating is also used at 40 ° to 120 ° C. during pressurization, it may be 500 kg / cm ² or less.

Next, the case where the photosensitive material of the second aspect is used will be described. In the case of the light-sensitive material of the second aspect, a series of steps such as a step of imagewise exposure, and a step of superposing the surface of the light-sensitive material coated with the light-sensitive layer with the image-receiving material and pressurizing it Form an image. For the imagewise exposure step and the pressurizing step, the same method as in the first embodiment described above can be used.

The light-sensitive material of the present invention has many uses such as a color photographing and printing light-sensitive material, a printing light-sensitive material, a computer graphic hard copy light-sensitive material, and a copying machine light-sensitive material. It is possible to make compact and inexpensive image forming systems such as copiers, printers, and simple printing machines.

[0108]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Examples and comparative examples of the present invention will be described below. Example 1 Preparation of silver halide emulsion (EB-1) 24 g of lime-processed inert gelatin was added to distilled water and 4
After dissolution at 0 ° C. for 1 hour, 3 g of NaCl was added, and 1N sulfuric acid was added to adjust the pH to 3.2.

10 mg of (AGS-1) was added to this solution, and then the solutions I and II were kept at 60 ° C. by the control double jet method while keeping pAg = 8.5, and at the same time, it took 45 minutes until the solution I disappeared. Added. After the addition is complete, p
H was adjusted to 6.0 with 1N NaOH and (AZ-1) 6.
4 mg and (AZ-2) 4.8 mg were added to 60 at 60 ° C.
Aged. After aging (SB-1), 480 mg was added, and 100 g of an aqueous solution containing 4.1 g of KI was added at an equal flow rate from 20 minutes to 3 minutes after the addition.

To this emulsion, 1.1 g of (CK-1) was added, precipitated, washed with water and desalted, and then 6 g of lime-processed gelatin was added to dissolve it, and a 3.5% aqueous solution of (ATR-3) was added. 5 cc was added to adjust the pH to 6.2. 550 g of a monodisperse silver iodobromide emulsion (EB-1) having an average grain size of 0.24 μm and a coefficient of variation of 20% was prepared.

[0111]

Preparation of silver halide emulsion (EG-1) Same as silver halide emulsion (EB-1)
Solution II was added for 15 minutes, and 450 mg of (SG-1) was added instead of (SB-1). 550 g of a monodisperse silver iodobromide emulsion (EG-1) having an average grain size of 0.18 μm and a coefficient of variation of 20% was prepared.

Preparation of Silver Halide Emulsion (ER-1) Same as Silver Halide Emulsion (EB-1) except for Solution I and II.
The addition time of the liquid was 15 minutes, and instead of (SB-1), 450 mg of (SR-1) and 100 mg of (SR-2)
Was added. Average particle size 0.18 μm, coefficient of variation 2
550 g of a 2% monodisperse silver iodobromide emulsion (ER-1) was prepared.

[0114]

[Chemical 3]

[0115]

[Chemical 4]

(CK-1) Poly (isobutylene-co-
Monosodium maleate)

Preparation of solid dispersion (KB-1) 5.4 of lime-processed gelatin in a 300 ml dispersion container.
% Aqueous solution 110 g, polyethylene glycol (average molecular weight 2000) 5% aqueous solution 20 g, base precursor (BG-1) 70 g, and glass beads 200 ml having a diameter of 0.5 to 0.75 mm are added, and 300 using a Dynomill.
Disperse at 0 rpm for 30 minutes, adjust to pH 6.5 with 2N sulfuric acid.
Adjusted to 1.0 μm or less and a base precursor (B
A solid dispersion (KB-1) of G-1) was obtained.

[0118]

[Chemical 5]

Preparation of Pigment Dispersion (GY-1) To 255 g of the polymerizable compound (MN-2), 45 g of Chromo Fine Yellow 5900 (trade name, manufactured by Dainichiseika Seiki Co., Ltd.) was mixed, and an Eiger Motor Mill (Eiger -Engineering company make) and it stirred at 5000 rpm for 1 hour, and the dispersion (GY-1) was obtained. Polymerizable compound (MN-1) Compound described in Synthesis Example 1 of JP-A-64-68339 (manufactured by Nippon Kayaku Co., Ltd.)

Preparation of Pigment Dispersion (GM-1) To 270 g of the polymerizable compound (MN-1), Rubin F6B was added.
(Product name, Hoechst) 30 g was mixed and stirred at 5000 rpm for 1 hour using an Eiger motor mill (Eiger Engineering) to obtain a dispersion (GM-
1) was obtained.

Preparation of Pigment Dispersion (GC-1) To 255 g of the polymerizable compound (MN-1), 45 g of copper phthalocyanine (CI Pigment 15) and 5000 of Solsperse.
(Manufactured by ICI) 1.13 g, Sols Perth 24000
3.37 g (manufactured by ICI) was mixed and stirred at 5000 rpm for 1 hour using an Eiger motor mill (manufactured by Eiger Engineering) to obtain a dispersion (GC-1).

Preparation of Photosensitive Composition (PB-1) 45 g of pigment dispersion (GY-1) was added to (SV of (1P-1)).
-1) 9 g of 10% (wt%) solution, (RD-1) 2.
3 g, (RD-3) 3.1 g, (FF-3) (SV-
1) 2 g of 0.5% (wt%) solution and (ST-1)
5 g was added and dissolved to prepare an oily solution. While adding 7.6 g of a silver halide emulsion (EB-1) and 24 g of a solid dispersion (KB-1) to this solution, while keeping the temperature at 60 ° C,
5 at 10,000 revolutions per minute using a 40φ dissolver
After stirring for a minute, the photosensitive composition of W / O emulsion (PB
-1) was obtained.

Preparation of Photosensitive Composition (PG-1) 45 g of pigment dispersion (CM-1) was added to (SV of (1P-1)
-1) 9 g of 10% (wt%) solution, (RD-1) 2.
3 g, (RD-3) 3.1 g, (FF-3) (SV-
1) 2 g of 0.5% (wt%) solution and (ST-1)
5 g was added and dissolved to prepare an oily solution. While adding 7.6 g of a silver halide emulsion (EG-1) and 24 g of a solid dispersion (KB-1) to this solution, while maintaining the temperature at 60 ° C,
5 at 10,000 revolutions per minute using a 40φ dissolver
After stirring for a minute, the photosensitive composition of W / O emulsion (PG
-1) was obtained.

Preparation of Photosensitive Composition (PR-1) 45 g of pigment dispersion (GC-1) was added to (SV of (1P-1)
-1) 9 g of 10% (wt%) solution, (RD-1) 2.
3 g, (RD-3) 3.1 g, (FF-3) (SV-
1) 2 g of 0.5% (wt%) solution and (ST-1)
5 g was added and dissolved to prepare an oily solution.

A silver halide emulsion (ER-1) was added to this solution.
7.6 g and 24 g of solid dispersion (KB-1) were added, and 5
While maintaining the temperature at 0 ° C., the mixture was stirred at 40 000 rpm for 5 minutes using a 40φ dissolver to obtain a W / O emulsion photosensitive composition (PR-1).

[0126]

[Chemical 6]

[0127]

[Chemical 7]

[0128]

[Chemical 8]

Photosensitive microcapsule dispersion (CB-
Preparation of 1) 46 g of water in 4 g of 15% aqueous solution of polymer (2P-1)
In addition, the mixed solution was adjusted to pH 5.0 with 2N sulfuric acid.
To this solution, 50 g of a 10% aqueous solution of polymer (2P-2) was added, and mixed at 60 ° C for 30 minutes. This mixed solution was added to the above-mentioned photosensitive composition (PB-1), and the mixture was stirred with a 40φ dissolver at 60 ° C. at 6000 rpm for 20 minutes, and
An emulsion in the form of a / O / W emulsion was obtained. Separately, melamine 31.5 g and formaldehyde 37% aqueous solution 5
2.2 g and 170.3 g of water were added, and the mixture was heated to 60 ° C. and stirred for 30 minutes to obtain a transparent aqueous solution of melamine-formaldehyde initial condensate.

25 g of this initial condensate was added to the emulsion in the W / O / W emulsion state cooled to 40 ° C.,
The pH was adjusted to 5.0 with 2N sulfuric acid while stirring at 1200 rpm with a propeller blade. Next, the temperature of this liquid was raised to 70 ° C. in 30 minutes and further stirred for 30 minutes.
To this was added 10.3 g of a 40% aqueous solution of urea, the pH was adjusted to 3.5 with 2N sulfuric acid, and stirring was continued at 70 ° C. for another 40 minutes. This solution was cooled to 40 ° C., 9 g of a 3% aqueous solution of K-carrageenan was added, the mixture was stirred for 10 minutes, and the pH was adjusted to 6.5 with a 2N aqueous sodium hydroxide solution to prepare a photosensitive microcapsule dispersion (CB- 1) was prepared.

Photosensitive microcapsule dispersion (CG-
Preparation of 1) 36 g of water in 4 g of 15% aqueous solution of polymer (2P-1)
In addition, the mixed solution was adjusted to pH 5.0 with 2N sulfuric acid.
To this solution, 60 g of a 10% aqueous solution of polymer (2P-2) was added, and mixed at 60 ° C for 30 minutes. The above-mentioned photosensitive composition (PG-1) was added to this mixed liquid, and the mixture was stirred at 60 ° C. for 20 minutes at 6000 rpm using a 40φ dissolver, and W
An emulsion in the form of a / O / W emulsion was obtained. Then, a photosensitive microcapsule dispersion liquid (CG-1) was prepared in the same manner as the preparation of (CB-1).

Photosensitive microcapsule dispersion (CR-
Preparation of 1) 46 g of water in 4 g of 15% aqueous solution of polymer (2P-1)
In addition, the mixed solution was adjusted to pH 5.0 with 2N sulfuric acid.
To this solution, 50 g of a 10% aqueous solution of polymer (2P-2) was added, and mixed at 60 ° C for 30 minutes. The above-mentioned photosensitive composition (PR-1) was added to this mixed liquid, and the mixture was stirred at 60 ° C. for 20 minutes at 6000 rpm using a 40φ dissolver, and W
An emulsion in the form of a / O / W emulsion was obtained.

Then, a photosensitive microcapsule dispersion liquid (CR-1) was prepared in the same manner as in the preparation of (CB-1). Polymer (2P-1) Polyvinylbenzenesulfinic acid potassium polymer (2P-2) Polyvinylpyrrolidone K-90

Preparation of Photosensitive Material 101 Photosensitive microcapsules (CB-1) of the present invention 15 g,
15 g of (CG-1) and 15 g of (CR-1) were taken out, respectively, heated to 40 ° C. without stirring and melted, and then mixed, 6.5 g of a 5% aqueous solution of a surfactant (WW-1). , 1% aqueous solution of surfactant (WW-2) 8 g, PVA KL
16 g of a 10% aqueous solution of 318 (manufactured by Kuraray Co., Ltd., carboxy-modified PVA) and 9 g of a 10% aqueous solution of glycerin were added and mixed by stirring at 40 ° C. for 10 minutes. 44 this liquid
A coating solution was prepared by filtering with a μ mesh filter cloth.

[0135]

[Chemical 9]

This coating solution was applied on the aluminum vapor-deposited surface of a support obtained by vapor-depositing aluminum on a polyethylene terephthalate film having a thickness of 25 μm by an extrusion method so that the coating amount was 110 cc / m ^2, and dried at 60 ° C. The photosensitive material 101 of the present invention was prepared by winding the coated surface inside at 25 ° C. and 65%.

Preparation of image receiving material (RS-1) 110 g of surfactant (Poise 520, manufactured by Kao Corporation),
An aqueous solution obtained by mixing 7090 g of water with a stirrer (trade name: TK homomixer O type, Tokushu Kika Kogyo Co., Ltd.)
Calcium carbonate (Callite SA, manufactured by Shiraishi Central Research Institute) while stirring at 4500 rpm for 4 minutes.
800 g was gradually added over about 10 minutes, and dispersion was carried out for 30 minutes after starting the addition of calcium carbonate to obtain a 40 wt% slurry of calcium carbonate. 12000 g of this slurry and 1% aqueous solution of surfactant (WW-3) 9
50 g, polyvinyl alcohol (PVA KL-31
8, Kuraray Co., Ltd. 10% aqueous solution 12000 g and water 18360 g were mixed, and after stirring for 1 hour while keeping the temperature at 25 ° C., polyamide epichlorohydrin resin (FL-71, Toho Chiba Chemical Industry Co., Ltd.) 2310 g of a 3% aqueous solution of a product) was added and stirred for 30 minutes to prepare a coating liquid for forming an image receiving layer.

[0138]

[Chemical 10]

This coating solution was applied to a paper support having a basis weight of 80 g / m ² (as a fiber length distribution defined by JIS-P-8207, the sum of the weight% of the 24 mesh residue and the weight% of the 42 mesh residue was calculated as follows. A paper support using a base paper having a fiber length distribution such as 30 to 60% [JP-A-63-18623]
No. 9])), and then uniformly coated so as to be 126 g / m ² and dried at 110 ° C. to obtain an image receiving material (RS-
1) was created. The amount of water applied at this time is about 10
It was 9 g / m ² . Next, water is applied to the surface of the support of the image receiving seat (RS-1) opposite to the side where the image receiving layer is provided by using a # 4 Meyer bar, and tension is applied in the MD direction of the image receiving seat. While drying at 70 ° C, the image receiving material (RS
-1A) was prepared. The amount of water applied at this time is 5
It was -10 g / m ² .

Image formation In the following experiments, 15 ° C., 20% RH, 25 ° C., 50% RH,
It was carried out under the conditions of 35 ° C. and 70% RH. Using a halogen lamp whose photosensitive material 101 taken out from the moisture-proof bag was adjusted to a color temperature of 3100 ° K, a wedge having a continuously changing transmission density of 0 to 4.0 and a CC of yellow and magenta were used so as to match the gray balance. The film was exposed through a filter (manufactured by Fuji Film) under an exposure condition of 20000lux for 1 second. After 10 seconds from the exposure, heat development was carried out for 1 second with a heat developing machine equipped with an exhaust device heated to 150 ° C. from the side opposite to the coated surface of the photosensitive material.

Immediately after heating, the image receiving material (RS-1 was used so that the coated surface of the photosensitive material and the image receiving surface of the image receiving material overlap each other.
A) was fed and conveyed, and was passed at a pressure of 300 kg / m ² between stainless steel rollers having a diameter of 3 cm and 4 cm and heated to 70 ° C. at a speed of 3 cm / sec. When the image receiving material was peeled off from the light-sensitive material immediately after passing, a clear positive image was obtained on the image receiving material under any temperature and humidity conditions. Examples 2 to 5 After forming the image receiving material (RS-1) by forming the image receiving material (RS-1A) of Example 1, on the surface opposite to the side provided with the image receiving layer,
Image-receiving materials (RS-1B) to (RS- in the same manner as in Example 1 except that the water coating treatment was performed at each water coating amount shown in Table 1.
1E) was prepared and an image was formed, and a clear positive image was obtained on the image receiving material under any temperature and humidity conditions.

Comparative Example 1 After the image-receiving material (RS-1) was prepared by preparing the image-receiving material (RS-1A) of Example 1, on the surface opposite to the side provided with the image-receiving layer,
An image receiving material (RS-1E) was prepared in the same manner as in Example 1 except that the water coating treatment was not performed, and an image was formed. A clear positive image was obtained on the image receiving material at 25 ° C. and 50% RH. However, at 15 ° C. and 20% RH and at 35 ° C. and 70% RH, the image receiving material was not conveyed well, and the obtained image was wrinkled.

Comparative Examples 2 to 3 After the image receiving material (RS-1) was prepared by preparing the image receiving material (RS-1A) of Example 1, on the surface opposite to the side provided with the image receiving layer,
Image-receiving materials (RS-1F) to (RS- in the same manner as in Example 1 except that the water coating treatment was performed at each water coating amount shown in Table 1.
1G) was created and image formation was carried out.
In RH, a clear positive image was obtained on the image receiving material, but 1
At 5 [deg.] C. 20% RH and 35 [deg.] C. 70% RH, the image receiving material was not conveyed well, and the obtained image was wrinkled.

The above results are shown in Table 1. The water application amount in Table 1 is shown by weight% with respect to the amount of water applied when the image receiving layer is provided. The symbol "O" indicates that a clear image was obtained, and "X" indicates that the image formation was not smooth and the image was unclear.

[0145]

[Table 1]

From the above, according to the present invention, 1% by weight or more of the amount of water applied when the image receiving layer is formed on the surface of the support of the image receiving material opposite to the side provided with the image receiving layer, 2
It can be seen that when an image is formed using an image receiving material coated with 0% by weight or less of water and dried, a clear image can be obtained on the image receiving material under all environmental conditions from low humidity to high humidity.

Example 6 Preparation of Photosensitive Microcapsule Liquid (CR-2) 3.0 g of a photopolymerization initiator (Irgaki Yua 651, manufactured by Ciba Geigy) was dissolved in 45 g of a pigment dispersion (GC-1) to prepare a photosensitive composition. I got a thing. A mixed solution of 5.6 g of a 15% aqueous solution of the polymer (2P-1) and 134.5 g of a 7.1% aqueous solution of the polymer (2P-2) was adjusted to pH 5.0. The above-mentioned photosensitive composition was added to this mixed solution and stirred at 50 ° C. at 3000 rpm for 30 minutes using a dissolver to obtain an emulsion in the state of an O / W emulsion. Separately, melamine 1
24.8 g of 37% aqueous formaldehyde solution and 76.3 g of distilled water were added to 4.8 g, and the mixture was heated to 60 ° C. and stirred for 40 minutes to obtain a transparent aqueous solution of melamine-formaldehyde initial condensation product.

40.0 g of an aqueous solution of this precondensate and 8 g of water were added to the above O / W emulsion to give 10% sulfuric acid.
The pH was adjusted to 5.0 with an aqueous solution. Then it was heated to 60 ° C. and stirred for 30 minutes. 40 more of urea
% Aqueous solution (11 g) was added, and the mixture was stirred for 40 minutes while heating at 60 ° C. After that, the pH was adjusted to 6.5 using a 10% aqueous sodium hydroxide solution to prepare a photosensitive microcapsule dispersion liquid (CR-2) having a melamine-formaldehyde resin as a capsule wall.

Preparation of Photosensitive Material 111 Photosensitive microcapsule liquid (CR-2) 51 g, 10% aqueous solution of the above surfactant (WW-1) 6.5 g, and one of the above surfactant (WW-2). % Aqueous solution 8.1 g and polyvinyl alcohol (PVA205, manufactured by Kuraray Co., Ltd.)
8.3 g of a 20% aqueous solution of was mixed to prepare a coating solution.
This coating solution was applied to the aluminum vapor deposition surface of a support obtained by vapor-depositing aluminum on a polyethylene terephthalate film having a thickness of 25 μm at a coating amount of 90 g / m ² and dried at about 60 ° C. 111 was created.

[Image formation] The photosensitive material 111 was exposed through a step wedge from a distance of 30 cm for 20 seconds using a 200 W high pressure mercury lamp. Then, the image-receiving material (RS-1) used in Example-1 was overlaid, a stainless roller having a diameter of 30 mm and a diameter of 40 mm was maintained at a temperature of 70 ° C. at a speed of 3 cm / sec, and passed at a pressure of 300 kg / cm ² , When the photosensitive material 111 and the image receiving material were separated, a cyan positive image corresponding to the exposure amount was obtained on the image receiving material.

Examples 7 to 10 Similar to Example 6 except that image receiving materials (RS-1B) to (RS-1E) were used in place of the image receiving materials (RS-1A) used in Example 6. When an image material was used, a clear positive image was obtained on the image receiving material under any temperature and humidity conditions.

Comparative Examples 4 to 6 Instead of the image receiving material (RS-1A) used in Example 6, image receiving materials (RS-1B), (RS-1F), (RS
-1G), an image material was prepared in the same manner as in Example 6, and a clear image was obtained on the image receiving material at 25 ° C. and 50% RH, but at 15 ° C. 20% RH and 35 ° C. 70%.
In RH, the image receiving material was not conveyed well, and the obtained image was wrinkled.

The above results are shown in Table 2. The amount of water applied in Table 2 is shown by weight% with respect to the amount of water applied when the image receiving layer is provided. The symbol "O" indicates that a clear image was obtained, and "X" indicates that the image formation was not smooth and the image was unclear.

[0154]

[Table 2]

From the above, according to the present invention, 1% by weight or more of the amount of water applied when the image receiving layer is formed on the surface of the support of the image receiving material opposite to the side provided with the image receiving layer, 2
When an image is formed using an image receiving material coated with 0% by weight or less of water and dried, it is difficult to obtain a clear image on the image receiving material under all environmental conditions from low humidity to high humidity.

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] September 27, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

To solve these problems, an image-receiving material having an image-receiving layer on a paper support according to the present invention is provided with an image-receiving layer on the surface of the support of the image-receiving material opposite to the side provided with the image-receiving layer. The problem can be solved by providing an image receiving material characterized in that 1% by weight or more and 20% by weight or less of water applied when formed is applied and dried. In particular, when drying was performed while applying a tension of 1 g / cm or more, it was effective in reducing the trouble of the paper feeding operation in the environment of low humidity or high humidity. When the amount of water applied is 1% by weight or less of the amount of water applied when the image receiving layer is formed, positive curling cannot be corrected, and the amount of water added is 20% by weight.
In the above cases, the image receiving material was wrinkled during drying and lacked in dimensional stability.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

In addition to the binder and the white pigment, the image-receiving layer may contain various additives as described below. For example, when a color-developing system comprising a color-developing agent and a color-developing agent is used, the image-receiving layer may contain the color-developing agent. Typical developers include phenols, organic acids or salts thereof, or esters, but when a leuco dye is used as a color image forming substance, a zinc salt of a salicylic acid derivative is preferable, Above all,
Zinc 3,5-di-α-methylbenzyl salicylate is preferred. The above color developer is contained in the image receiving layer in an amount of 0.1 to 50 g / m ^2.
It is preferable that the amount of coating is within the range. More preferably, it is in the range of 0.5 to 20 g / m ² .

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0060

[Correction method] Change

[Correction content]

Specific examples of the thermal polymerization initiator include azobisisobutyronitrile, 1,1'-azobis (1-cyclohexanecarbonitrile), dimethyl-2,2'-azobisisobutyrate and 2,2. -Azo compounds such as azobis (2-methylbutyronitrile) and azobisdimethylvaleronitrile, benzoyl peroxide, di-t-butyl peroxide, dicumyl peroxide, t-butyl hydroperoxide, cumene hydroperoxide, etc. And organic peroxides such as hydrogen peroxide, potassium persulfate and ammonium persulfate, and sodium p-toluenesulfinate.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0128

[Correction method] Change

[Correction content]

[0128]

[Chemical 8]

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0143

[Correction method] Change

[Correction content]

Comparative Examples 2-3 When image formation was carried out using the image receiving material (RS-1) instead of the image receiving material (RS-1A) of Example 1, 25 images were obtained.
A clear positive image was obtained on the image receiving material at 50 ° C RH, but the image receiving material was not conveyed well at 15 ° C 20% RH and 35 ° C 70% RH, and the obtained image was wrinkled. .

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0151

[Correction method] Change

[Correction content]

Examples 7 to 10 Instead of the image receiving material (RS-1A) used in Example 6,
An image material was prepared in the same manner as in Example 6 except that the image receiving materials (RS-1B) to (RS-1E) were used, and a clear positive image was obtained on the image receiving material under any temperature and humidity conditions.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0152

[Correction method] Change

[Correction content]

Comparative Examples 4 to 6 Instead of the image receiving material (RS-1A) used in Example 6,
Image receiving material (RS-1), (RS-1F), (RS-1
An image material was prepared in the same manner as in Example 6 except that G) was used. A clear image was obtained on the image receiving material at 25 ° C. and 50% RH, but at 15 ° C. 20% RH and 35 ° C. 70% RH.
In that case, the image receiving material was not properly conveyed, and the obtained image was wrinkled.

Claims (2)

[Claims] 1. A support, at least a polymerizable compound,
After a polymerizable compound of a photosensitive material having a photosensitive layer containing microcapsules containing a color image-forming substance, a reducing agent, and photosensitive silver halide is polymerized into an image, an image receiving layer is formed on a paper support. Having, on the surface opposite to the side provided with the image receiving layer,
1% by weight or more of the amount of water applied when the image receiving layer is formed,
An image forming method for forming an image on an image receiving material by applying pressure in a state where the image receiving material coated and dried with 20% by weight or less of water and the light sensitive material are superposed. 2. At least a photopolymerization initiator on the support,
After the polymerizable compound is imagewise polymerized in a photosensitive material having a photosensitive layer containing a color image forming substance and a microcapsule encapsulating the polymerizable compound, the image receiving layer is provided on the paper support. On the surface opposite to the side on which the image receiving layer is formed, the image receiving material obtained by applying and drying 1% by weight or more and 20% by weight or less of the amount of water applied when forming the image receiving layer and the photosensitive material are superposed. An image forming method in which an image is formed on the image receiving material by applying pressure in the state.