JPH07120936A - Image forming method - Google Patents

Abstract

PURPOSE:To provide an image forming method capable of obtaining image of brightness values varying in the vertical direction and horizontal direction while the image is approximate to the image of printed matter. CONSTITUTION:This image forming method comprises subjecting an image forming material in which a photosensitive layer contg. coloring agents, >=2 kinds of resins not compatible with each other and a photopolymeizable compd. is formed on a base and which has a protective film on this photosensitive layer to image exposing and transferring the image to an image receptor, such as paper, by a difference in the tacky adhesiveness in transfer of the exposed part and unexposed part of the photosensitive layer. The resulted image varies in brightness between in the vertical direction and in the horizontal direction and, therefore, the image is adequately used for applications of special printing, etc., for forming printed matter varying in impression with viewing angles and for preventing forgery.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming method. More specifically, it is a method of forming an image by superimposing a single color or multiple colors using the difference in adhesiveness between the exposed and unexposed areas of the photosensitive layer, which is similar to printed matter, but in the vertical and horizontal directions. The present invention relates to an image forming method capable of obtaining images having different gloss values.

[0002]

2. Description of the Related Art Conventionally, it is known in the field of printing industry to use a prepress proof as a means for confirming the finish, color tone and the like of a finally printed printed matter before printing. This prepress proof has an overlay method and a surprint method, and is properly used depending on the image quality finally obtained and the purpose of use in plate making and printing processes.

In the overlay system, a transparent base film is provided with a photosensitive layer containing a coloring material corresponding to a color separation mask and the mask is brought into close contact with each other, exposed, and developed. Perform calibration by overlapping. Unlike the overlay method, the surprint method is different from that of the US Pat.
No. 3060023, No. 3060024, No. 3060025, a photopolymer photosensitive layer consisting of several layers is laminated on a single support to successively form color separation images.

Further, JP-A-59-97410 and JP-A-61-1
There is also a prepress proof as described in Japanese Patent No. 885377 which can be used for both the overlay method and the surprint method. According to this method, if you just want to check the characters etc. according to the purpose of use, you can check only with the overlay, and if you want to get a hard copy to check the delicate color part such as a picture, check this. The versatility is great in that it can be transferred to the transfer target. However,
There is a drawback that the working environment is deteriorated because a developing process using an organic solvent is required.

On the other hand, the inventors of the present invention image-exposed an image-forming material formed by forming a photosensitive layer containing a colorant on a transparent support, and transferred the exposed and unexposed areas of the photosensitive layer. The prepress proof obtained by transferring the image to the image receptor such as paper by causing cohesive failure of the photosensitive layer between the roll nips, which causes the difference in adhesiveness, is very similar to the actual printed matter. And we have already found that the texture is reproduced.

These image-forming materials are usually composed of three layers: a transparent support, a photosensitive layer containing a dye and / or a pigment, and a protective film. When the image forming material is used, the transparent support and the image surface of the mask original plate are brought into close contact with each other, and image exposure is performed from the mask side.
Then, the protective film is removed, and the photosensitive layer and the image receptor are transferred while applying heat and pressure between the nip rolls.

Further, in recent years, it has been performed in a copying machine or the like to relatively easily obtain an image similar to a printed matter, but additional characteristics such as image characteristics and reproducibility may be required.

[0008]

DISCLOSURE OF THE INVENTION The inventors of the present invention formed a photosensitive layer from a combination of two or more incompatible resins and a photopolymerizable compound to form an image having different gloss depending on the transfer direction. The present invention has been found to be achieved, and the present invention has been completed.

[0009]

The present invention comprises forming a photosensitive layer containing a colorant, two or more incompatible resins and a photopolymerizable compound on a support, and further forming a photosensitive layer on the photosensitive layer. An image forming method in which an image is exposed to an image forming material having a protective film, and the image is transferred to an image receptor such as paper due to the difference in adhesiveness between the exposed part and the unexposed part in the photosensitive layer. provide.

As the support, a material which is stable to heat, chemicals, light and the like and which sufficiently transmits actinic rays is preferable. For example, cellulose acetate, polystyrene, polyvinyl chloride, polyethylene terephthalate,
Examples of the film or sheet include polycarbonate and polypropylene, and polyethylene terephthalate is particularly preferable in terms of transparency, thermal stability, dimensional stability, and the like.

The photosensitive layer is composed of two or more types of incompatible resins,
1 to 1 composed of photopolymerizable compound, colorant, photoinitiator, etc.
Although the layer has a thickness of 5 μm, a photosensitizer, a thermal polymerization inhibitor, a resin plasticizer, a pigment dispersant, a silicone compound and the like may be used in combination as additives. In the present invention, “not compatible” means that a dry coating film formed from a mixed solution of two or more resins impairs transparency as compared with a dry coating film formed from a single resin solution. It is in a state. Specifically, two or more resins that are incompatible at all mixing ratios,
Two or more kinds of resins having a specific mixing ratio that impairs transparency are used in combination.

As the two or more types of incompatible resins, resins having excellent compatibility with the photopolymerizable compound can be used. For example, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer resin, poly (meth) acrylic acid ester, polyurethane resin, cellulose derivative (eg, ethyl cellulose,
Cellulose acetate, nitrocellulose), polyamide resin, diallyl phthalate resin, polyvinyl acetal resin, synthetic rubber such as butadiene-acrylonitrile copolymer, etc. are used in combination so as to have the required physical properties and incompatibility. .

Examples of the incompatible combination include a combination of diallyl phthalate resin and vinyl chloride-vinyl acetate copolymer resin. The diallyl phthalate resin exhibits good characteristics in pigment dispersibility, color development, transferability during image formation, and resolution, and is also excellent in sensitivity to ultraviolet rays. The vinyl chloride-vinyl acetate copolymer resin has excellent adhesiveness on the coated surface and film formability, suppresses the occurrence of pinholes on the coated surface of the photosensitive layer, and improves stability over time. The vinyl chloride-vinyl acetate copolymer resin having an average molecular weight of 2000 to 30,000 can be used. In terms of image forming property, an average molecular weight of 5,000 to 20,000 is more preferable. If the molecular weight exceeds this range, the viscosity will remarkably increase, and it will be difficult to maintain the suitability during coating. If the molecular weight is below this range, pinholes will not be suppressed and stability over time will decrease.

The vinyl chloride-vinyl acetate copolymer resin is used in the range of 20 to 70% by weight based on the diallyl phthalate resin. If the amount is less than 20% by weight, pinholes cannot be suppressed and sufficient stability with time cannot be obtained. Also, 70% by weight
If it exceeds, the decrease in the exposure sensitivity during image exposure becomes large, and at the same time, the transferability to paper decreases. The addition of a few percent of the vinyl chloride-vinyl acetate copolymer resin to the epoxy resin is effective from the standpoint of resin stability and is preferable.

As the photopolymerizable compound, a monomer having an ethylenically unsaturated double bond, a prepolymer or the like can be used, but a compound capable of plasticizing the above resin at room temperature is preferable. Typical compounds include 2-hydroxyethyl (meth) acrylate, ethylene glycol diacrylate, diethylene glycol diacrylate, 1,6-hexanediol di (meth) acrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, dipenta. Erythritol hexaacrylate, etc. are mentioned, and one of these photopolymerizable compounds,
Alternatively, two or more kinds may be used if necessary.

As the photopolymerization initiator, those which have little absorption in the visible light region and those which have good compatibility with the photopolymerizable compound are preferable, and examples thereof include benzophenone, benzoin ethyl ether, benzyl dimethyl ketal, and azobisiso. Butyronitrile, 2-chlorothiozanzone, 2-methylthiozanzone, 2-ethylthiozanzone, 2-isopropylthiozanzone, 4'-isopropyl-2-hydroxy-2-
Methyl propiophenone and the like can be mentioned. In addition, a photosensitizer may be used in combination in order to increase the photopolymerization initiation efficiency. As the photosensitizer, an aromatic-fatty acid tertiary amine or the like can be used, and examples thereof include 4,4′-bisdiethylaminobenzophenone. The photosensitizer may be yellowed depending on the type of photosensitizer. Therefore, the photosensitizer is selected in consideration of acceleration efficiency, yellowing, compatibility with the initiator, energy of the actinic ray to be used, and wavelength range.

Further, a thermal polymerization inhibitor may be used to suppress radicals for photopolymerization. When using a thermal polymerization inhibitor, what is important is the amount added and compatibility, and the amount must be such that it does not interfere with the generation of radicals for photopolymerization and that the radicals are thermally suppressed. Generally, aromatic derivatives such as hydroquinone, p-methoxyphenol, t-butylcatechol, and pyrogallol are used, but compounds other than aromatic compounds may be used in combination.

As the colorant applied to the photosensitive layer, conventionally used dyes and pigments such as organic pigments, dyes and carbon black can be used. It is also possible to mix several dyes and pigments in order to obtain the required hue. The pigment or dye added to the photosensitive layer is preferably 5 to 50% by weight of the total solid content, more preferably 9 to 20% by weight. Further, an extender pigment or the like may be added to the photosensitive layer to perform a process for reducing the gloss of the transferred image in advance.

Further, in order to prevent transfer when peeling the protective film from the photosensitive layer, it is preferable to use a silicon-based additive. As a silicon-based additive,
Silicon compounds such as silicone modified with epoxy at both ends, silicone modified with both ends with alcohol, a mixture of methacryloyl group-containing silicone and acrylic oligomer are used, and 0.01 to 5% by weight of the colorant is used as solid content. If the content of the above silicon compound is less than 0.01% by weight of the colorant, transfer cannot be sufficiently prevented. Also, 5% by weight
If it exceeds, the adhesiveness to the protective film may not be adequate and the gloss may become too high after the transfer of the image.

A mixture of a methacryloyl group-containing silicon and an acrylic oligomer is used in an amount of 0.1 to 10 parts by weight each of silicon and acrylic oligomer having one methacryloyl group, relative to 1 part by weight of silicon having two or more methacryloyl groups. It is preferably contained. As an acrylic oligomer, the molecular weight is 500-
One or more kinds of 2000 pentaerythritol triacrylate oligomer, ethylene glycol diacrylate oligomer, diethylene glycol diacrylate oligomer, trimethylolpropane triacrylate oligomer and the like are used. The above mixture has good compatibility with the photopolymerizable compound and uniformly forms the coated surface of the photosensitive layer. Further, the above-mentioned mixture has a function of lowering the surface tension of the photosensitive layer, but when cured by light, it does not migrate to the surface of the photosensitive layer by heat.

The protective film may be composed of a single layer or a plurality of layers, but the surface in contact with the photosensitive layer has few fish eyes and has good releasability from the photosensitive layer, and is unnecessary. It is preferable that the plasticizer does not precipitate. Further, the protective film may be provided with a layer having a gas barrier property. The layer having a gas barrier property may or may not be in direct contact with the photosensitive layer. Examples of the compound used in the layer having a gas barrier property include polymer compounds such as polyvinyl alcohol (PVA) and ethylene vinyl alcohol (EvOH). Further, for the purpose of ensuring the rigidity of the image forming material, the protective film may be lined with another strong material on the surface which does not come into direct contact with the photosensitive layer. The material to be lined at this time is not particularly limited, but a polyester film can be used.

As the protective film, a rigid sheet or film of polyethylene terephthalate, biaxially oriented polypropylene, high-density polyethylene, etc., one or more of these being bonded with an adhesive, or a thin, high-density film Examples include polyethylene, medium density polyethylene, polystyrene, polypropylene, cellulose acetate, biaxially oriented polypropylene and the like, which have a gas barrier property and a rigid sheet, for example, polyethylene terephthalate and the like, which are bonded together with an adhesive.

In order to form an image, the image forming material is subjected to image exposure from the support side by using a positive mask corresponding to each color in a bright room printer or the like. The exposure can be performed from the protective film side, but it is not preferable because the resolution and the image are reversed. The image-formed image forming material is attached to a roll (hereinafter referred to as a blanket roll) around which the image forming material of the transfer machine is wound, and then the protective film is peeled off. On the other hand, the roll around the receiver such as paper of the transfer machine (hereinafter, abbreviated as transfer roll) is 90 to 130
Warm to ℃. Press the above two rolls to 4-18Kgf,
Rotate and transfer the image at a speed of 10 to 100 cm / min.
The transferred image is exposed to ultraviolet light and fixed on a receptor such as paper.

According to the above method, since the transfer state in the traveling direction between the roll nips and the transfer state at right angles to the traveling direction are subtly different, an image having different gloss is formed depending on the angle. The image obtained by the present invention can be combined with an image obtained by using an image forming material of another color to form a multicolor image. The image obtained by the present invention is
Since the gloss varies depending on the direction, it has applications such as the production of printed materials with different impressions depending on the viewing angle, and special printing to prevent counterfeiting.

[0025]

EXAMPLES The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto. In the examples, “part” means “part by weight”.

Example 1 A dispersion liquid having the following composition was dispersed in a sand mill for 2 hours and then filtered through a 1-micron filter to prepare a photosensitive layer coating liquid. Diallyl isophthalate prepolymer (manufactured by Daiso) 6.00 parts Vinyl chloride-vinyl acetate copolymer resin (VYHH manufactured by Union Carbide) 5.40 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.10 parts Kayarad TPGDA (manufactured by Nippon Kayaku) 0.90 Part Irgacure 907 (manufactured by Ciba-Geigy Japan) 1.20 parts Kayacure DETX-S (manufactured by Nippon Kayaku Co., Ltd.) 0.60 part Irgacure 369 (manufactured by Nippon Ciba-Geigy Co., Ltd.) 0.20 parts Solspers 24000 (manufactured by ICC Japan) ) 0.10 part Mixed solution of silicon containing methacryloyl group and acrylic oligomer 0.20 part (silicon having two methacryloyl groups / silicon having one methacryloyl group / pentaerythritol triacrylate oligomer (molecular weight 800) = 1 part / 1 part / 2 Part of a mixture of toluene and xylene, NV 10%) MA- 7 (manufactured by Mitsubishi Kasei) 2.50 parts R-51 (manufactured by Hoechst Japan) 0.80 parts P-methoxyphenol (manufactured by Tokyo Chemical Industry Co., Ltd.) 0.18 parts Methyl ethyl ketone 75.00 parts

On a 12 μ transparent support (Q-21 manufactured by Toray),
Applying and drying the above coating solution to form a 2μ photosensitive layer,
Further, a protective film (100 μ OPP film) was laminated with a laminator so as to be in contact with the photosensitive layer to obtain an image forming material (black sheet). The transparent support side of the image forming material and the silver salt surface of the original positive mask were brought into close contact with each other, and an actinic ray of 50 mj / cm ² was applied by a UV printer (HMW-201KB manufactured by Oak Manufacturing Co., Ltd.). Next, peel off the image forming material and the original positive mask,
Furthermore, the protective film was peeled off and coated paper (made by Mitsubishi Paper Mills
Adhesion between Tokubishi Art) and the image forming material, and using an image transfer device (ink proof manufactured by Toyo Ink Mfg. Co., Ltd.), pressure 11 kg / cm ² , passing speed 35 cm / min, roller surface temperature 90 ° C.
When the transfer was performed at the nip between the rollers under the conditions described above, the unexposed portion of the photosensitive layer (thickness 2.0 μm) was transferred, and it was possible to obtain a transfer material with the same texture as a normal printed material. The longitudinal 60-degree gloss value of the transfer is 54%, and the horizontal 60-degree gloss value is 34.
%Met. In addition, the image forming material was placed in a thermostat at 25 ° C
When the product was stored for a month and imagewise exposed under the same exposure conditions and transferred, blocking did not occur at all when the protective film was peeled off, and a transfer product similar to that one month ago could be obtained.

Example 2 A cyan photosensitive layer coating liquid having the following composition was prepared in the same manner as in Example 1. Diallyl isophthalate prepolymer (manufactured by Daiso) 7.07 parts Vinyl chloride-vinyl acetate copolymer resin (VYHH manufactured by Union Carbide Co., Ltd.) 5.34 parts Epicoat 828 (manufactured by Yuka Shell Epoxy) 0.02 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.49 copies Kayarad TPGDA (manufactured by Nippon Kayaku Co., Ltd.) 0.78 parts Ilcagua 907 (manufactured by Ciba Geigy) 1.19 parts Kayacure DETX-S (manufactured by Nippon Kayaku) 0.57 parts Ilkagua 369 (manufactured by Ciba Geigy) 0.04 parts Lionol Blue FG7330 (Toyo) 3.12 parts Methacryloyl group-containing silicon and acrylic oligomer mixed solution 0.22 parts (silicon having two methacryloyl groups / silicon having one methacryloyl group / pentaerythritol triacrylate oligomer (molecular weight 1000) = 1 part / 2 parts / 1 part mixture En-xylene solution, NV10%) Methyl ethyl ketone 75.00 parts

A yellow color photosensitive layer coating solution having the following composition was prepared in the same manner as in Example 1. Diallyl isophthalate prepolymer (manufactured by Daiso) 8.62 parts Vinyl chloride-vinyl acetate copolymer resin (VYLF manufactured by Union Carbide Co.) 2.88 parts Epicoat 828 (manufactured by Yuka Shell Epoxy) 0.02 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.49 copies Kayarad TPGDA (manufactured by Nippon Kayaku Co., Ltd.) 0.78 parts Ilkagua 907 (manufactured by Ciba Geigy) 1.19 parts Kayacure DETX-S (manufactured by Nippon Kayaku Co., Ltd.) 0.54 parts Ilkagua 369 (manufactured by Ciba Geigy) 0.04 parts Rionol Yellow FG1310 (Toyo) 3.12 parts Methacryloyl group-containing silicon and acrylic oligomer mixed solution 0.39 parts (silicone having two methacryloyl groups / silicone having one methacryloyl group / pentaerythritol triacrylate oligomer (molecular weight 800) = 2 parts / 1 part / 2 parts mixture tor Down-xylene solution, NV10%) Methyl ethyl ketone 75.00 parts

A magenta color photosensitive layer coating liquid having the following composition was prepared in the same manner as in Example 1. Diallyl isophthalate prepolymer (manufactured by Daiso) 6.67 parts Vinyl chloride-vinyl acetate copolymer resin (VYHD manufactured by Union Carbide) 4.83 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.49 parts Kayarad TPGDA (manufactured by Nippon Kayaku) 0.78 Part Irukagua 907 (manufactured by Ciba Geigy) 1.19 parts Kayacure DETX-S (manufactured by Nippon Kayaku Co., Ltd.) 0.57 part Ilkaguar 369 (manufactured by Ciba Geigy) 0.04 part Rionol Red Carmine 6BFG4200 (manufactured by Toyo Ink Mfg. Co.) 3.10 parts Silicon containing methacryloyl group 0.24 parts of a mixed solution of acrylonitrile and acrylic oligomer (silicon having two methacryloyl groups / silicon having one methacryloyl group / pentaerythritol triacrylate oligomer (molecular weight 1200) = 2 parts / 1 part / 2 parts toluene / xylene mixture Solution, NV 10%) Methylethi Ketone 75.00 parts

On a support (polyethylene terephthalate sheet) having a thickness of 12 μm, a coating solution for the photosensitive layer was dried to give a 1.8
It was applied to have a thickness of μm, and the solvent component was volatilized by drying. Next, a protective film made by laminating 8 μm polypropylene and 100 μm polyethylene terephthalate (T-60 made by Toray) with a 5 μm thick adhesive (Adcoat 329A / 329B = 1/1 made by Toyo Morton) is laminated to form an image. Materials (cyan sheet, yellow sheet and magenta sheet) were obtained.

Post-exposure is performed on the black sheet transfer product obtained in Example 1, and then, in the same manner as in Example 1, the yellow sheet, the magenta sheet, and the cyan sheet are sequentially transferred, and post-exposure is repeated to form an image. Formed. In each color sheet,
Even when the protective film was peeled off, blocking of the photosensitive layer on the protective film was not observed. In addition, even when the transfer of each color was performed, no repellency was observed and a good image could be obtained. Furthermore, the peelability immediately after laminating the protective film was maintained even after 3 months. The average 60 ° gloss value in the longitudinal direction of the transfer was 61%, and the average in the lateral direction was 40%.

[Example 3] An image forming material (black sheet) was obtained in the same manner as in Example 1 except that the composition of the black color photosensitive layer coating liquid was changed to the following composition. Diallyl isophthalate prepolymer (manufactured by Daiso) 7.80 parts Vinyl chloride-vinyl acetate copolymer resin (VYLF manufactured by Union Carbide Co.) 3.70 parts Epicoat 828 (manufactured by Yuka Shell Epoxy) 0.02 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.10 parts Kayarad TPGDA (manufactured by Nippon Kayaku Co., Ltd.) 0.90 part Irgacure 907 (manufactured by Nippon Ciba Geigy) 1.20 parts Kayacure DETX-S (manufactured by Nippon Kayaku Co., Ltd.) 0.60 parts Irga Cure 369 (manufactured by Nippon Ciba Geigy) 0.20 parts MA-7 (manufactured by Mitsubishi Kasei) 2.50 parts Pigment Blue 57 0.30 parts X-22-169AS (manufactured by Shin-Etsu Chemical Co., Ltd.) 0.20 parts P-methoxyphenol (manufactured by Tokyo Chemical Industry Co., Ltd.) 0.20 parts Methyl ethyl ketone 5.00 parts

Using the obtained image-forming material, transfer was performed on coated paper (pearl coat manufactured by Mitsubishi Paper Mills) in the same manner as in Example 1 except that the roller surface temperature was changed to 110 ° C. The photosensitive layer (thickness: 2.0μ) was transferred, and we were able to obtain a transfer material with the same texture as ordinary printed materials. The 60 ° gloss value in the longitudinal direction of the transfer was 55%, and the 60 ° gloss value in the lateral direction was 30%. Further, when a transfer product was prepared in the same manner as above except that the original positive mask was rotated by 90 ° and brought into close contact, the gloss values in the vertical and horizontal directions were reversed. The two types of transfer products obtained were indistinguishable by visual inspection, but could be identified by a gloss meter.

Further, the image-forming material was stored in a thermostat at 25 ° C. for 1 month and image-wise exposed and transferred under the same exposure conditions. When the protective film was peeled off, no blocking occurred at all, and it was the same as one month ago. It was possible to obtain a transcript that did not change. The image-forming material was stored in a thermostat at 30 ° C for 1 month, and the pinholes on the coated surface and the twist of the photosensitive layer were compared with those immediately after coating. There wasn't. The transferred image was the same as it was a month ago.

[Example 4] An image forming material was prepared in the same manner as in Example 2 except that the composition of the photosensitive layer coating liquid was changed to the following composition so that the dry coating film had a thickness of 2.3 µm. I got a black sheet). Diallyl isophthalate prepolymer (manufactured by Daiso) 6.01 part Vinyl chloride-vinyl acetate copolymer resin (VYHH manufactured by Union Carbide) 5.10 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.49 parts Kayarad TPGDA (manufactured by Nippon Kayaku) 0.78 Part Irukagua 907 (manufactured by Ciba Geigy) 1.19 parts Kayacure DETX-S (manufactured by Nippon Kayaku Co., Ltd.) 0.57 part Ilkaguar 369 (manufactured by Ciba Geigy) 0.04 parts Solspers 24000GR ICI Corporation 0.07 part MA-7 (manufactured by Mitsubishi Kasei) 2.50 parts Pigment Blue 57 0.30 parts X-22-169B (manufactured by Shin-Etsu Chemical Co., Ltd.) 0.22 parts Erosil 300 (manufactured by Nippon Aerosil Co., Ltd.) 2.10 parts Methyl ethyl ketone 75.00 parts Transferred in the same manner as in Example 3 using the obtained image-forming material. As a result, the 60 ° gloss value in the longitudinal direction of the transfer was 60.
%, The 60 ° gloss value in the lateral direction was 35%.

[Example 5] An image forming material (black sheet) was obtained in the same manner as in Example 4 except that the composition of the photosensitive layer coating liquid was changed to the following. Diallyl isophthalate prepolymer (manufactured by Daiso) 6.81 parts Vinyl chloride-vinyl acetate copolymer resin (VYLF manufactured by Union Carbide) 5.10 parts Kayarad DPHA (manufactured by Nippon Kayaku) 7.49 parts Kayarad TPGDA (manufactured by Nippon Kayaku) 0.78 Part Irukagua 907 (manufactured by Ciba Geigy) 1.19 parts Kayacure DETX-S (manufactured by Nippon Kayaku Co., Ltd.) 0.54 part Ilkaguar 369 (manufactured by Ciba Geigy) 0.04 parts Solspers 244GR (manufactured by ICI Corporation) 0.04 part MA-7 (manufactured by Mitsubishi Kasei) ) 2.50 parts Pigment Blue 57 0.30 parts KF-105 (manufactured by Shin-Etsu Chemical Co., Ltd.) 0.25 parts Erosil 300 (manufactured by Nippon Aerosil Co., Ltd.) 2.10 parts Methyl ethyl ketone 75.00 parts

Using the obtained image-forming material, transfer was carried out in the same manner as in Example 3, and the 60 ° gloss value in the longitudinal direction of the transfer product was 40% and the 60 ° gloss value in the transverse direction was 16%. there were. The image-forming material was stored in a thermostat at 40 ° C for 1 month, and the pinholes on the coated surface and the twist of the photosensitive layer were compared with those immediately after coating. There wasn't. The transferred image was the same as that of one month ago. Furthermore, even if the protective film was peeled off, blocking of the photosensitive layer to the protective film was not observed, and the peelability immediately after lamination was sufficiently retained after 3 months. .

[0039]

In the image forming method of the present invention, since the image forming material provided with the photosensitive layer containing the incompatible resin is used, the subtle difference in the transfer direction by the image transfer device is reflected, Images with different gloss in the vertical direction and the horizontal direction can be formed. Further, the coated surface is stably formed by the function of the combination of the incompatible resins of the photosensitive layer. In addition, pinholes are less likely to occur when forming the coated surface. Further, the image forming material is less likely to change with time when stored, and the phenomenon of pinholes, the photosensitive layer, etc. is reduced. Therefore, it is possible to obtain a peculiar image with a slight difference in gloss depending on the viewing angle, while it is a high-quality image with the same texture as a normal printed matter.

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Claims (1)

[Claims] 1. An image in which a photosensitive layer containing a colorant, two or more kinds of incompatible resins and a photopolymerizable compound is formed on a support, and a protective film is further provided on the photosensitive layer. An image forming method in which an image is exposed to a forming material and the image is transferred to an image receptor such as paper due to the difference in adhesiveness between the exposed portion and the unexposed portion of the photosensitive layer.