JP2000071618A - Ablation type image forming material, its manufacture and method for forming image using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ablation type image forming material for obtaining an image of high resolution and easily isolating, a method for manufacturing it, and a method for forming an image adapted to use of the material. SOLUTION: The image forming material comprises an image forming layer, an adhesive layer and a second support sequentially provided on a first support in such a manner that, when a thickness of the second support is D1 and a thickness of the adhesive layer is D2, D2/D1 is in a range of 0.4 to 1.5, and the image forming layer or the adhesive layer contains a mold releasable substance. The substance is a wax, an organic solvent soluble silicone or fluorocompound, a silicone or a filler surface treated with the silicone or the fluorocompound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ablation-type image forming material which can be easily peeled at a high resolution, a method for producing the same, and a suitable image forming method using the material.

[0002]

2. Description of the Related Art Conventionally, light energy such as a laser beam is focused and irradiated on a recording material to melt or deform a part of the material, or to scatter, burn or evaporate (hereinafter, these are collectively referred to as ablation. A recording method is known. These are dry treatments that do not require treatment liquids such as chemicals, and have the advantage that high contrast can be obtained by melting and deforming only the light irradiation part, scattering or evaporating and removing, and resist materials, It is used as an optical recording material such as an optical disk, a transparent original at the time of producing a printing plate, and the like.

For example, JP-A-8-334894, JP-A-8-334894
No.-337053, No.8-337055, No.9-15
No. 849, No. 10-39519, No. 10-11414
Nos. 9 and 10-151860 propose an ablation-type image forming material and an image forming method integrated with a release sheet, and by using these materials, a high-resolution image with less stain can be obtained. Obtainable.

[0004]

However, when the above-described ablation-type image forming material is used, there is a case where there is a problem in the releasability of the material. 8-33,054, 9
In Japanese Patent Application Laid-Open No. 9-106079, specific peeling force between the image forming layer and the adhesive layer is set to a specific value, or a resin having specific physical property values is used for the adhesive layer. It has been proposed to form an image by a method.

[0005] However, depending on the peeling method, there were cases where the peeling force was so strong that the film was not peeled off, or that the resolution was insufficient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an ablation-type image forming material which can obtain a high-resolution image and can be more easily peeled off, a method of manufacturing the same, and a preferable image using the material. It is to provide a forming method.

[0007]

The object of the present invention is to provide an image forming layer on a first support, an adhesive layer in contact with the image forming layer, and a second support in this order. When the thickness is D1 and the thickness of the adhesive layer is D2, D2 / D1 is in the range of 0.4 to 1.5, and the image forming layer contains a releasable substance. 1. An image forming layer, an adhesive layer and a second support are provided in this order on a support, and when the thickness of the second support is D1 and the thickness of the adhesive layer is D2, D2 / D1 is 0.4 to 0.4. An ablation-type image-forming material which is in the range of 1.5 and contains a release material in the adhesive layer, and wherein the image-forming layer has a colorant layer and a protective layer laminated in this order on a first support Is made of WAX, organic solvent-soluble silicone or fluorine. -Based compound, silicone or a filler surface-treated with a fluorine-based compound, an image forming layer, an adhesive layer, and a second support on a first support in this order, and the thickness of the second support is D1, When the thickness of the adhesive layer is D2, D2 / D1 is in the range of 0.4 to 1.5, and an ablation-type image forming material in which a peeling force adjusting layer is laminated between the adhesive layer and the image forming layer The peeling force adjusting layer contains a water-soluble resin, the peeling force adjusting layer further contains latex, and the image forming layer comprises a colorant layer and a protective layer on the first support in this order. The first support has a transmittance of an exposure light wavelength of 80% or more, and the binder resin of the adhesive layer has an elongation defined by ASTM D412 or JIS K6301. But over 600% Or the ablation-type imaging material of the first
An ablation-type image forming method comprising: forming an image forming layer on a support, forming an adhesive layer on a second support separately, and then bonding and bonding the image forming layer surface and the adhesive layer surface together. After forming the image forming layer and the peeling force adjusting layer on the first support in this order and forming the adhesive layer on the second support separately, the surface of the image forming layer and the surface of the adhesive layer are integrated by bonding. After exposing the ablation-type image forming material to an image from a first support by using a laser beam, the second support is peeled off, and the exposed portion of the image forming layer is transferred to the second support. An image forming method for removing and removing an exposed portion of the image forming layer by transferring it to the second support, removing the exposed portion, and further laminating a resin layer on the image forming layer side. Method or apply resin layer The method for transferring the resin layer is performed by a melt transfer method for transferring a molten ink layer, a resin layer thermal transfer method using a transfer foil, an electrophotographic method using a transparent toner, or a method using a heat-meltable ink. It was any of the ink jet system, the method of applying the resin layer is a method of irradiating active energy rays after applying an active energy ray-curable resin, scanning laser light and exposing the image, And an image forming method for forming a peeled end by exposing the outside of the image area with a laser beam from the first support side using the ablation type image forming material.

Hereinafter, the present invention will be described in detail.

In a first aspect of the present invention, an image forming layer, an adhesive layer and a second support are laminated on a first support in this order,
As thickness D1 of the second support and thickness D2 of the adhesive layer, D2
/ D1 is in the range of 0.4 to 1.5, and the image forming layer in contact with the adhesive layer contains a releasing material.

As both supports, acrylates, methacrylates, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, polyvinyl chloride, polyethylene, polypropylene, polystyrene, nylon, aromatic polyamide, Examples include resin films of ether ether ketone, polysulfone, polyether sulfone, and the like, and resin films obtained by laminating two or more layers of the resin.

In the present invention, the support is preferably stretched into a film and heat-set in view of dimensional stability. In the present invention, when performing image formation, a laser beam is exposed imagewise from the first support side, so that the first support has a high transmittance with respect to the effective wavelength of the laser light. Preferably, a support having a transmittance of usually 80% or more, more preferably 85% or more is preferably used. Incidentally, fillers such as titanium oxide, zinc oxide, barium sulfate, calcium carbonate and the like may be added as long as the effects of the present invention are not impaired.

The thickness of the support is 25 as the first support.
The thickness of the second support is 10 to 100 μm, preferably 15 to 50 μm.

The image forming layer can be composed of a colorant having an absorption at an effective wavelength of laser light, a binder resin, and various additives added as necessary. It may be formed of layers or a plurality of layers. Further, in addition to an image forming layer containing a colorant having an absorption at an effective wavelength of a laser beam (hereinafter sometimes abbreviated as a colorant layer), in consideration of image durability and the like, a protective layer is formed on the layer. May be used as an image forming layer.

The thickness of the image forming layer is from 0.05 to
It is about 5.0 μm, preferably in the range of 0.1 to 3.0 μm.

Colorants having an absorption at the effective wavelength of the laser light include cyanine dyes, rhodocyanine dyes, oxonol dyes, carbocyanine dyes, dicarbocyanine dyes, tricarbocyanine dyes, tetracarbocyanine dyes, Pentacarbocyanine dyes, styryl dyes, pyrylium dyes, phthalocyanine dyes, known dyes such as gold-containing dyes, graphite, carbon black,
Metal nitride, metal carbide, metal boride, cobalt trioxide, iron oxide, chromium oxide, copper oxide, titanium black,
Substances that absorb in the wavelength range of 600 to 1200 nm, such as inorganic fine particles such as magnetic powder, can be selected and used as appropriate.

Among the above-mentioned coloring agents, for forming a black image such as a transparent original at the time of producing a printing plate or a medical diagnostic image, a coloring agent having a black color is preferable.
It is more preferable to use inorganic fine particles, especially magnetic powder, from the viewpoint of the image resolution and the residual concentration in the portion where ablation has occurred.

Such magnetic powders include ferromagnetic iron oxide powder,
Ferromagnetic metal powder, cubic plate-like powder and the like can be mentioned, and among them, ferromagnetic metal powder can be suitably used from the viewpoint of color tone.

Examples of the ferromagnetic metal powder include Fe and Co, Fe-Al, Fe-Al-Ni, and Fe-Al-.
Zn-based, Fe-Al-Co-based, Fe-Al-Ca-based, F
e-Ni system, Fe-Ni-Al system, Fe-Ni-Co
System, Fe-Ni-Zn system, Fe-Ni-Mn system, Fe-
Ni-Si system, Fe-Ni-Si-Al-Mn system, Fe
-Ni-Si-Al-Zn system, Fe-Ni-Si-Al
-Co system, Fe-Al-Si system, Fe-Al-Zn system,
Fe-Co-Ni-P system, Fe-Co-Al-Ca system,
Ferromagnetic metal powders such as metal magnetic powders mainly composed of Ni-Co, Fe, Ni, Co, etc.
Base metal powder is preferred.

The shape of the ferromagnetic metal powder is preferably acicular with a major axis diameter of 0.30 μm or less, preferably 0.20 μm or less. By using such a ferromagnetic metal powder, the surface of the image forming layer can be formed. Performance can be improved.

The content of the colorant having an absorption at the effective wavelength of the laser beam is 50 to 99% of the layer forming component.
% By weight, preferably 60 to 95% by weight.

The binder resin for the image forming layer can be used without any particular limitation as long as it can sufficiently retain the colorant that absorbs the effective wavelength of the laser light.

Examples of such a binder resin include a polyurethane resin, a polyester resin, a vinyl chloride resin, a polyvinyl acetal resin, a cellulose resin,
Acrylic resin, phenoxy resin, polycarbonate,
Examples thereof include a polyamide resin, a phenol resin, and an epoxy resin.

When the durability of the image forming layer itself is required depending on the application, it is preferable to cure the image forming layer. Specifically, after forming the image forming layer, the image forming layer is cured. Is preferred.

When the image forming layer is cured as described above, an isocyanate-based or carbodiimide-based thermosetting agent can be used. As the binder resin used in this case, a polyurethane-based resin, a polyester-based resin,
A resin having an active hydrogen group in a molecule, such as a vinyl chloride resin, a polyvinyl acetal resin, a cellulose resin, a phenoxy resin, a polycarbonate, an acrylic resin, or the like, can be appropriately selected and used.

In the case where a ferromagnetic metal powder is used as a colorant having an absorption at an effective wavelength of laser light, considering the liquid stability of the coating solution for the image forming layer, -SO ₃ M, -OSO ₃ M, -COOM
[Here, M represents a hydrogen atom or an alkali metal, M ₁ is a hydrogen atom, an alkali metal or an alkyl group and -PO (OM _{1) 2} to have at least one polar group selected from, strong It is preferable because the dispersibility of the magnetic metal powder can be improved.

The content of the binder resin is about 1 to 50% by weight, preferably 5 to 50% by weight of the components for forming the image forming layer.

In the present invention, the first image forming method described below is used.
The image forming layer is characterized in that the image forming layer contains a releasable substance so that the support and the second support can be easily peeled off. The releasing material of the present invention refers to a substance that reduces the peeling force between the image forming layer and an adhesive layer described below.

As such a releasable substance, any substance can be used without particular limitation as long as it can reduce the peeling force with the adhesive layer described later. In order to obtain, at least one substance selected from WAX, an organic solvent-soluble silicone or a fluorine-based compound, or a filler surface-treated with a silicone or a fluorine-based compound is preferable, and the surface of the image forming layer is extremely thin. From the viewpoint of forming a film and not hindering the performance of the image forming layer itself, it is more preferable to contain at least an organic solvent-soluble silicone or fluorine-based compound.

The content of such a releasable substance is about 0.5 to 50% by weight, preferably 1 to 50% by weight of the components for forming the image forming layer.
30% by weight.

Further, when a plurality of image forming layers are laminated, or when a layer obtained by laminating a protective layer on a colorant layer is used as an image forming layer, the respective layers are sequentially laminated by a coating method. It is preferable because it improves the adhesiveness.

In this case, when a contact type gravure coater or bar coater is used as a coater for coating,
For the layer to be coated, for the purpose of preventing scraping of the layer,
It is preferable to contain fine particles such as inorganic fine particles, organic fine particles, silicone-based fine particles, and fluorine-based fine particles. Among them, it is stable to a coating solvent, and has high hardness of the fine particles themselves, and is widely used as an abrasive. It is preferable to add inorganic particles such as inorganic oxides, inorganic nitrides, and inorganic carbides.

For the purpose of reducing projections on the surface of the image forming layer, the content of such inorganic oxides, inorganic nitrides and inorganic carbides should be 15% by weight or less in the image forming layer forming composition. Is preferred.

The image forming layer may contain additives such as a lubricant, a dispersant and an antistatic agent as long as the effects of the present invention are not impaired.

Examples of the lubricant include fatty acids, fatty acid esters, fatty acid amides, fluororesins, and carbon fluorides. Examples of the dispersant include fatty acids having 12 to 18 carbon atoms such as lauric acid and stearic acid. Examples thereof include amides, alkali metal salts, and alkaline earth metal salts; polyalkylene oxide alkyl phosphates, lecithin, trialkyl polyolefinoxy quaternary ammonium salts; and azo compounds having a carboxyl group and a sulfone group. .

Examples of the antistatic agent include a cationic surfactant, an anionic surfactant, a nonionic surfactant, a polymer antistatic agent, and conductive fine particles.

The amount of these additives is about 0 to 20% by weight, preferably 0 to 15% by weight of the components for forming the image forming layer.
It is.

In the case where a layer in which a colorant layer and a protective layer are laminated as an image forming layer is used, the protective layer may be formed of a binder resin, a release material, and various additives that are added as necessary. Can be configured.

As the binder resin, the releasing material, and the various additives to be added as required, the materials used in the image forming layer can be appropriately selected and used.

The thickness of the protective layer is usually from 0.01 to 2.0.
0 μm, preferably 0.05 to 1.0 μm.

The adhesive layer of the present invention may be any of those which have adhesiveness at room temperature themselves, and those which exhibit adhesiveness by applying heat or pressure.
It can be formed by appropriately selecting an adhesiveness-imparting agent, a thermal solvent, fine particles, and the like, if necessary.

Examples of such a binder resin include a polystyrene resin, a polyester resin, a polyolefin resin, a polyvinyl ether resin, an acrylic resin,
Examples include an ionomer resin, a cellulose resin, an epoxy resin, a vinyl chloride resin, a urethane resin, and a vinyl acetate resin.

Further, in the present invention, in order to obtain an image having high resolution and less stain on the exposed portion, it is necessary to use an adhesive layer which does not hinder the deformation of the image forming layer caused by ablation of the image forming layer by an image forming method described later. Is preferred.

In order to form such an adhesive layer, when the thickness of the second support is D1 and the thickness of the adhesive layer is D2, D2 / D
It is preferable that D1 be in the range of 0.4 to 1.5. In this case, if D2 / D1 <0.4, the deformation of the layer caused by ablation may be hindered, and consequently the exposed portion may be stained. Also, D2 / D1> 1.5
In such a case, the cost of the material may increase, or the image forming material manufactured by the method described below may curl depending on storage conditions, or the first support and the second support may be separated by the image forming method described below. At the time of peeling, the cohesive failure of the adhesive layer may occur.

In order to obtain a higher resolution image in the adhesive layer having the above-mentioned thickness, it is further necessary to use ASTM D412 or JTM.
It is preferable to use a binder resin having an elongation of 600 or more specified by IS K6301 and more preferably to use a binder resin of 1000 or more. Examples of such a binder resin include styrene-isoprene copolymer, styrene-butadiene copolymer, styrene-polyethylene-butadiene copolymer and hydrogenated copolymers and modified products thereof, ethylene-vinyl acetate copolymer, Examples thereof include polyvinyl acetate, urethane-based resins, and polyester-based resins.

The binder resin is used in an amount of usually about 30 to 100% by weight, preferably 50 to 100% by weight, of the components for forming the adhesive layer.

Examples of the adhesion-imparting agent include unmodified or modified products such as rosin, hydrogenated rosin, rosin maleic acid, polymerized rosin and rosin phenol, terpenes, petroleum resins and modified products thereof, and the like. As the solvent, a known compound which is solid at ordinary temperature and which reversibly liquefies or softens when heated can be appropriately selected and used.
Further, as the fine particles, those used in the above-mentioned image forming layer can be appropriately selected and used.

These various additives are usually used in an amount of about 0 to 70% by weight, preferably 0 to 50% by weight, in the components for forming the adhesive layer.
It is.

Further, in the image forming material of the present invention, other layers besides the above-mentioned layers may be provided. For the purpose of running stability, antistatic and antiblocking, the image forming material of the first support is used. A backing layer is provided on the side opposite to the layer and / or on the side opposite to the adhesive layer of the second support to prevent penetration of the coating solvent of the protective layer between the image forming layer and the protective layer. An intermediate layer may be provided between the second support and the adhesive layer to improve the adhesion of the adhesive layer.

In the present invention, an image-exposed portion is pulled out to the adhesive layer side by an image forming method described later, and an unexposed portion is peeled off at the interface between the adhesive layer and the colorant layer or the protective layer in contact with the adhesive layer. To form an image. Therefore, any manufacturing method may be used as long as the surfaces to be separated can be separated from each other. In order to enable easy separation at the interface, it is preferable to use a material in which the image forming layer is laminated on the first support, It is preferred to produce an image forming material by laminating a material having an adhesive layer laminated on a support.

As a bonding method, the surface of the adhesive layer and the surface to be laminated are overlapped, and pressure or heat and pressure is applied using a pressure roll, a heat / pressure roll, a stamper, a hot stamper, or the like. Can be bonded together. As a condition, when a roll-shaped transfer type laminating machine is used, the temperature is usually room temperature to 120 ° C., preferably room temperature to 100 ° C., and the linear pressure is usually 0.1.
２０20 kg / cm, preferably 0.5〜１０10 kg / cm
And the transport speed is usually 1 to 1000 mm / sec, preferably 5 to 500 mm / sec. When a lithographic fixed type bonding machine such as a stamper is used, the temperature is from room temperature to 10
0 ° C., preferably room temperature to 80 ° C., and the pressure is usually 0.
05 to 10 kg / cm ² , preferably 0.5 to ⁵ kg / cm ²
cm ² , and the time is usually 0.1 to 50 seconds, preferably 0.5 to 20 seconds.

Each of the above-mentioned layers is prepared by dissolving or kneading and dispersing each layer forming component in a solvent.

The solvent may be any solvent having a solubility parameter value in the range of 6.0 to 15.0, such as water, alcohols such as ethanol and propanol, cellosolves such as methyl cellosolve and ethyl cellosolve, toluene and the like. Aromatics such as xylene, ketones such as methyl ethyl ketone and cyclohexanone, esters such as ethyl acetate and butyl acetate, ethers such as dioxalan and dioxane,
Halogen solvents such as chloroform and dichlorobenzene,
Nitrogen-containing solvents such as dimethylformamide and N-methylpyrrolidone, and sulfur-containing solvents such as dimethyl sulfoxide can be used.

When kneading and dispersion are required, a two-roll mill, a three-roll mill, a ball mill, a pebble mill, a cobol mill, a tron mill, a sand mill, a sand grinder,
Sqegvari Attritor, High Speed Impeller Disperser, High Speed Stone Mill, High Speed Impact Mill, Disper,
A high-speed mixer, a homogenizer, an ultrasonic disperser, an open kneader, a continuous kneader or the like can be appropriately selected and used.

In order to apply the coating solution prepared by dissolving and / or dispersing the layer forming components as described above, an extrusion-type extrusion coater, a comma coater, a reverse roll coater, a gravure roll coater, and the like. Various known coater stations such as an air doctor coater, a blade coater, an air knife coater, a squeeze coater, an impregnated coater, a bar coater, a transfer roll coater, a kiss coater, a cast coater, and a spray coater can be appropriately selected and used. In these coaters, when providing a plurality of colorant layers or applying a protective layer on the colorant layer, there is no particular limitation as long as the layer to be applied is not damaged. However, when the thickness of the layer to be coated is thin, in the above-mentioned coater station, a coater suitable for thin layer coating is preferable, and an extrusion-type extrusion coater, a gravure roll coater, a bar coater, or the like is used. can do. In addition, when using a coating method such as a gravure roll coater or a bar coater that contacts the layer to be coated, the rotation direction of the gravure roll or the bar may be either forward or reverse with respect to the transport direction. In the case of forward rotation, a constant speed or a peripheral speed difference may be provided. Furthermore,
When using a contact coating method, a layer to be coated such as a colorant layer to be described later is subjected to a smoothing treatment such as a calendar treatment after coating, or a colorant layer is coated, cured and thermally cured. It is preferable to use those that have been used.

In a second embodiment of the present invention, an image forming layer, an adhesive layer and a second support are laminated in this order on a first support, and the thickness D1 of the second support and the thickness D2 of the adhesive layer are defined as: D2 /
D1 is in the range of 0.4 to 1.5, and the adhesive layer contains a release material.

In this case, the first support, the image forming layer, the adhesive layer and the second support used in the first embodiment can be appropriately selected from those used in the first embodiment. It is not essential in the present embodiment that the image forming layer, which is essential in the first embodiment, contains a release material, but may be added as long as the effects of the present invention are not impaired.

As the release material added to the adhesive layer of this embodiment, the release material added to the image forming layer described in the first embodiment can be used. In this case, it is preferable to add a wax which partially reduces the peeling force to the adhesive layer in a dispersed state.

Further, in order to prevent contamination of the exposed portion, in other words, not to hinder the deformation of the image forming layer caused by the ablation, the average particle diameter d of the WAX is set to the thickness D2 of the adhesive layer. , D / D2 from 0.005 to 0.
3, and more preferably 0.01 to 0.02.

The amount of the above-mentioned releasable substance added is usually 0.5 to 40% by weight, preferably 1 to 40% by weight, based on the adhesive layer forming component.
30% by weight.

The image forming material of the second embodiment can be manufactured by the method described in the first embodiment.

In a third embodiment of the present invention, an image forming layer, an adhesive layer and a second support are laminated in this order on a first support, and the thickness D1 of the second support and the thickness D2 of the adhesive layer are defined as: D2 /
D1 is in the range of 0.4 to 1.5, and a peeling force adjusting layer is laminated between the adhesive layer and the image forming layer.

The peeling force adjusting layer referred to here is a layer having an effect of lowering the peeling force in the image forming method described later as compared with the case where the adhesive layer and the image forming layer are directly laminated. The interface that is present is between the release force adjusting layer and the image forming layer.

In the present embodiment, the first support, the image forming layer,
As the adhesive layer and the second support, those used in the above-described first embodiment can be appropriately selected and used, and the releasable substance contained in the image forming layer essential in the first embodiment is the same as that in the present embodiment. Is not essential, but may be added as long as the effects of the present invention are not impaired.

The peeling force adjusting layer will be described in detail below.

For the peeling force adjusting layer laminated on the image forming layer, a transfer method in which the layer provided on another support is transferred may be used. Is preferably laminated by a coating method having good interface adhesion.

In this case, it is preferable to adjust the coating liquid for the release force adjusting layer with a solvent that does not dissolve or penetrate the image forming layer to be laminated. In the case where is used, a water-based coating liquid is preferably used as a peeling force adjusting layer coating liquid. In addition, the aqueous coating liquid referred to here, in addition to those prepared with only water as a solvent,
It may contain a solvent such as an alcohol that is optionally miscible with water.

In this embodiment, an image-forming material having less fluctuation of the peeling force before and after high-temperature storage can be manufactured as compared with the above-mentioned first or second embodiment.

It is preferable that a water-soluble resin is contained as a component for forming the above-mentioned aqueous coating liquid in order to improve the adhesiveness of the interface. In particular, when the image forming layer is composed of a colorant layer and a protective layer, it is preferable to contain a water-soluble resin and latex as essential components.

Examples of the water-soluble resin include polyvinyl alcohol or modified products thereof, cellulose derivatives such as methylcellulose and hydroxypropylcellulose, polyvinylpyrrolidone or its derivatives, poly (meth) acrylic acid or its derivatives, and derivatives of isoprene and maleic anhydride. , Gelatin or a derivative thereof, casein or a derivative thereof, starch or a derivative thereof, corn starch or a derivative thereof, and the like, and these can be used alone or in combination of two or more.

When a latex is used in combination, a known latex can be appropriately selected and used as long as the effect of the present invention is not impaired.
Acrylic latex such as acrylic and styrene-acryl copolymer, polyester latex, polyurethane latex, rubber latex such as acrylonitrile-butadiene copolymer and styrene-butadiene copolymer, vinyl chloride latex, vinyl acetate and ethylene −
Examples include vinyl acetate-based latex such as vinyl acetate copolymer, epoxy-based latex, amine-based latex, amide-based latex, and vinylidene chloride-based latex. It is preferable to use a latex having a temperature of 60 ° C. or lower, because it is possible to reduce stains on exposed portions in an image forming method described later.

The content of the above-mentioned water-soluble resin alone or when the water-soluble resin and latex are used in combination is usually 50 to 100% by weight, preferably 70 to 10% by weight in the layer forming composition.
The range is 0% by weight.

Further, other additives may be added to the peeling force adjusting layer as long as the effects of the present invention are not impaired. Examples of such additives include fillers, waxes, lubricants, dispersants, and charging agents. Inhibitors, preservatives and the like can be mentioned.

As specific examples of the filler, WAX, lubricant, dispersant, and antistatic agent described above, those described in the first or second embodiment can be appropriately selected and used. Examples of the preservative include organic chlorine compounds, organic tin compounds, organic sulfur compounds, organic nitrogen sulfur compounds, organic halogen compounds, and benzimidazole compounds.

The content of the additive in the layer forming composition is as follows:
Usually, it is in the range of 0 to 50% by weight, preferably 0 to 30% by weight.

The thickness of the peeling force adjusting layer is 0.05 to 5.0.
It is about μm, preferably in the range of 0.1 to 2.0 μm.

Further, the adjustment of the coating liquid for forming a peeling force adjusting layer is performed by
Except for using a solvent containing at least water as the solvent, it can be adjusted in the same manner as in the first embodiment, a method of laminating on the image forming layer, and further laminating the release force adjusting layer and the adhesive layer. The method of integration can also be performed by appropriately selecting the same manufacturing method as in the first embodiment.

The image forming material of the present invention is obtained by irradiating light from the first support side imagewise to ablate the exposed portion, and then peeling off the first support and the second support. An image can be formed on a support.
Any light source can be used as long as it can be ablated.However, by using a laser beam, it is possible to narrow the beam and perform scanning exposure according to image data. When it is used, it is easy to narrow the exposure area to a minute size, and it is possible to form a high-resolution image.

The laser light can be used without any particular limitation as long as it is a light source that ablates at the interface between the first support and the image forming layer. Electromagnetic waves whose area can be narrowed down, in particular, ultraviolet rays, visible rays, and infrared rays having a wavelength of 1 nm to 1 mm are preferable. As such laser light sources, generally known solid lasers such as ruby lasers, YAG lasers, and glass lasers; He-Ne laser, Ar
Gas lasers such as ion laser, Kr ion laser, CO ₂ laser, CO laser, He-Cd laser, N ₂ laser, excimer laser; InGaP
Laser, AlGaAs laser, GaAsP laser, InGaAs laser, InAsP laser, Cd
Semiconductor lasers such as SnP ₂ lasers and GaSb lasers; chemical lasers, dye lasers, and the like. Among them, in order to cause ablation efficiently, a laser having a wavelength of 600 to 1200 nm is used. Since energy can be converted to heat energy, it is preferable in terms of sensitivity.

In the case of scanning exposure, either external scanning or internal scanning may be performed depending on the power of the laser light source.

The term “ablate” as used herein means that the image forming layer completely scatters due to a physical or chemical change, a part of the image forming layer is destroyed and / or scatters, This includes a phenomenon in which a physical or chemical change occurs only near the interface of the support.

Examples of the method of peeling the exposed image forming material include a peeling plate, a method of fixing a peeling angle with a peeling roll, a manual peeling method of peeling off the first support and the second support without fixing them by hand, and the like. Various peeling methods can be used as long as they do not affect image formation.

In the image forming material of the present invention, since the image forming layer and the adhesive layer or the image forming layer and the peeling force adjusting layer are uniformly adhered, the first support and the second support are exposed after image exposure. When peeling off, the trigger may be difficult to grasp. Therefore, in the image forming method of the present invention, it is preferable to provide a peeled end as shown in FIG. 1 by exposing the outside of the image area with the laser light from the first support side. The drawing is an image diagram in the case where a peeling end is provided from the first support side, and 1 in the drawing indicates a peeling end exposed by a laser beam.

The peeling edge may be formed at the time of preparing the image forming material, before the image exposure, after the image exposure, or simultaneously with the image exposure. The peeling edge may be formed in the laser sub-scanning direction as shown in FIG. 2 (b) in the main scanning direction, and the position of the peeling end may be in the horizontal direction of the image forming material as in FIG. 2 (a) or in the vertical direction in FIG. 2 (b). On the other hand, the shape of the peeled end is a straight line as shown in FIGS.
4 (c) and a rectangular shape as shown in FIG. 3 (d).
Part (b) or partial one as shown in FIG. 4 (c) can be peeled at the time of peeling, and may have any shape as long as no trouble occurs during transport. Further, the position of the peeling edge with respect to the transport direction may be the leading edge as shown in FIG. 5A, the trailing edge as shown in FIG. The transfer direction may be as shown in c), and it is preferable that these are provided in a timely manner by a mechanism of an apparatus for separating the first support and the second support. The peeled end in the present invention is not limited to the shape shown in the drawings.

The formation of the peeling end is performed at the same time as the image exposure, as compared with the case where the peeling end is provided during the production of the image forming material, and is more preferable in view of the exposure time. In this case, the peeling edge described above can be arbitrarily provided in the case of the outer surface scanning exposure as the image exposure device. However, when an image exposure apparatus using inner surface scanning is used, when a roll-shaped image forming material is conveyed and loaded on a drum, and the roll is cut after the image exposure, as shown in FIG. A portion exposed at the time of image exposure of the forming material may be used as a peeling edge.

As a specific example of a method of providing a peeling edge and a peeling method after the peeling edge is provided, see Japanese Patent Laid-Open No. 9-1.
06079 and the like can be appropriately selected and used, but the method is not limited thereto.

When an image forming material composed of only a colorant layer is used for the image forming layer, the durability of the formed image forming layer may be insufficient. Therefore, when such an image forming material is used, it is preferable to further laminate a resin layer on the image forming layer side as an image forming method.

As a method of laminating the resin layer, a known technique can be appropriately selected and used as long as the image is not damaged. Among them, a method of transferring the laminated resin layer or a method of coating the resin layer is used. It is preferable because the resin layer can be easily laminated.

Further, in the image forming material of the present invention, in the method of transferring the resin layer onto the image forming layer, a melt transfer method of transferring from a recording medium having a transparent molten ink layer using a thermal head or a heat roll. A resin layer thermal transfer method in which a resin layer is transferred from a transfer foil using a heat roll or a hot stamper, and colorless charged particles (transparent toner) are electrostatically adsorbed to the surface of the image forming layer and then thermally fixed by a heat roll or the like. It is more preferable to use either an electrophotographic method or a thermal inkjet method using a heat-fusible solid ink.

Among the methods for applying a resin layer, it is preferable to apply an active energy ray-curable resin without using a solvent, and then apply the active energy ray to laminate.

These specific methods are described in JP-A-8-33.
Nos. 7056, 10-86523, and the like can be appropriately selected and used, but the method is not limited thereto.

[0091]

EXAMPLES The present invention will be described below in detail with reference to examples, but embodiments of the present invention are not limited thereto. In the following, “parts” means “parts by weight as active ingredients” unless otherwise specified.

Example 1 The following solution A and solution B of the colorant layer forming composition were separately kneaded and dispersed using a Henschel mixer and a sand mill, and then the solution A, B and a polyisocyanate compound [Nippon Polyurethane Industry Co., Ltd. ), Coronate HX; Active ingredient 10
0%] in a weight ratio of 100: 2.39: 0.53 and stirred with a dissolver to prepare a colorant layer forming coating liquid 1.

After the prepared colorant layer forming coating liquid 1 was dispersed in an ultrasonic wave, extrusion coating by extrusion was carried out by extrusion, and a transparent polyethylene terephthalate film having a thickness of 100 μm and having a single-sided surface treated with corona discharge [Toray ( Co., Ltd., Lumirror T60] and dried using a heat roll at a temperature of 100 ° C. and a linear pressure of 250 kg /
cm and a calendar process at a transport speed of 60 m / sec.
Further, it was aged at 60 ° C. for 120 hours to obtain a thickness of 0.1 mm.
A colorant layer of 65 μm was formed.

<Colorant Layer Forming Composition> Liquid A Ferromagnetic metal powder [MAP T1650SB, manufactured by Kanto Denka Kogyo Co., Ltd.] 100 parts Polyurethane resin [Toyobo Co., Ltd., Byron UR4122] 13.5 parts Phenoxy resin [Phenoxy resin PKHH, manufactured by Phenoxy Associates] 1.5 parts Phosphate ester [Phosphanol RE610, manufactured by Toho Chemical Industry Co., Ltd.] 3.0 parts Methyl ethyl ketone 105.0 parts Toluene 105.0 parts Cyclohexanone 90.0 parts Liquid B Alumina [manufactured by Sumitomo Chemical Co., Ltd., high-purity alumina HIT60G] 100 parts Polyurethane resin [manufactured by Toyobo Co., Ltd., Byron UR4122] 15 parts Methyl ethyl ketone 41.3 parts Toluene 41.3 parts Cyclohexanone 35.4 parts A protective layer forming coating solution 1 to 5 having the following composition After adjusting with a sand mill, dispersing ultrasonic waves, applying a reverse bar coater on the colorant layer, drying and then aging at 60 ° C. for 72 hours to obtain a protective layer having a thickness shown in Table 1. Was formed.

<Protective Layer Forming Coating Solution 1> Phenoxy resin [Phenoxy Associates, phenoxy resin PKHJ] 3.0 parts Polyester resin [Unitika, Elitel UE3690] 3.0 parts Polyethylene wax dispersion (effective Component 15% by weight) [Microflat CE-155, manufactured by Koyo Chemical Co., Ltd.] 3.33 parts Silicone resin (30% by weight of active ingredient) [Toa Gosei Co., Ltd., Cymac US270] 1.67 parts Poly Isocyanate compound [Coronate HX, manufactured by Nippon Polyurethane Industry Co., Ltd.] 3.0 parts Toluene 120.0 parts Cyclohexanone 80.0 parts <Coating solution 2 for forming protective layer> Phenoxy resin [Phenoxy resin PKHH manufactured by Phenoxy Associates] 6 .1 part polyethylene wax dispersion (active ingredient 15% by weight) [Koyo 1.33 parts Silica surface-treated with a silicone-based compound [Silohobic 200, manufactured by Fuji Silysia Chemical Ltd.] 0.23 Silicone-based resin [Dainichi Seika Co., Ltd. Co., Ltd., Diaromer SP2105] 1.5 parts Polyisocyanate compound [Nippon Polyurethane Industry Co., Ltd., Coronate HX] 2.0 parts Toluene 120.0 parts Cyclohexanone 80.0 parts <Protective layer forming coating liquid 3> Polyurethane resin [manufactured by Toyobo Co., Ltd., Byron UR4122] 4.0 parts Polyester resin [manufactured by Unitika Ltd., Elitel UE3690] 2.0 parts Alumina [manufactured by Sumitomo Chemical Co., Ltd., high-purity alumina HIT60G] 0.8 Part Polyethylene wax dispersion (active ingredient 15% by weight) [Microflat C manufactured by Koyo Chemical Co., Ltd.] E-155] 1.33 parts Silicone compound [Dialomer SP712 manufactured by Dainichi Seika Co., Ltd.] 1.0 part Polyisocyanate compound [Nippon Polyurethane Industry Co., Ltd., Coronate HX] 2.0 parts Toluene 120.0 Part Cyclohexanone 80.0 parts <Coating liquid 4 for forming protective layer> Polyester resin [Elytel UE3690, manufactured by Toyobo Co., Ltd.] 6.5 parts Silicone-modified resin [CYMAC US270, manufactured by Toa Gosei Chemical Industry Co., Ltd.] 3 parts Polyethylene wax dispersion (active ingredient 15% by weight) [Microflat CE-155, manufactured by Koyo Chemical Co., Ltd.] 3.33 parts Silica surface-treated with silicone compound [Fuji Silysia Chemical Ltd., Silo Hobic 200] 0.2 parts Stearic acid 0.5 parts Polyisocyanate compound [Nippon Polyureta Industrial Co., Ltd., Coronate HX] 1.0 part Toluene 120.0 parts Cyclohexanone 80.0 parts <Protective layer forming coating liquid 5> Phenoxy resin [Phenoxy resin PKHH, manufactured by Phenoxy Associates] 8.0 parts Polyisocyanate Compound [manufactured by Nippon Polyurethane Industry Co., Ltd., Coronate HX] 2.0 parts Toluene 120.0 parts Cyclohexanone 80.0 parts Separately, the second support, which is 24 μm thick [D1], is transparently treated on one side with easy contact. A coating liquid 1 for forming an adhesive layer having the following composition was applied to an easily contacting surface of a polyethylene terephthalate film [T100E, manufactured by Diafoil Hoechst Co., Ltd.] with a comma coater and dried, and the film thickness [D2] described in Table 1 was obtained. Was provided.

<Adhesive Layer Forming Coating Solution 1> Styrene-isoprene copolymer [elongation: 1300%, Clayton D-1117, manufactured by Shell Japan K.K.] 25.0 parts Toluene 45.0 parts Methyl ethyl ketone 30.0 parts Next, the protective layer surface provided on the first support and the second support
The surface of the adhesive layer provided on the support is faced, and pressure treatment is performed [roll temperature: 23 ° C., transport speed: 200 mm / sec, pressure 6.
0 kg / cm] to produce an image forming material.

Using the image forming material produced in this manner, the exposure surface was adjusted from the first support side to the focal point at the interface between the first support and the colorant layer of the image forming material. ), The resolution in the sub-scanning direction at the time of exposure is set to 1000 L / cm, and a dry setter [manufactured by Heidelberg Prepress Co., Ltd., light value: 2]
55], the image was exposed, peeled, and evaluated for resolution, dirt on the exposed portion, and peeling force when peeling the first support and the second support according to the following criteria. In addition, the halftone dot% in the evaluation standard was shown by the halftone dot% of the unexposed portion.

-Evaluation of Resolution- Image exposure is performed using a vertical stripe pattern in which an exposed portion and an unexposed portion are formed for each line in the main scanning direction of a 2540 DPI drum as PS data, and the image-formed vertical stripes are formed. The pattern is arbitrarily extracted in the main scanning direction at 30 points, observed in the sub-scanning direction with a loupe, and the average number of lines / spaces per inch (this is regarded as one) and the difference between the maximum number and the minimum number ( Δ lines) were evaluated.

-Evaluation of Stain on Exposed Area- A halftone dot image of 0% is formed at a screen ruling of 70 L / cm, a halftone dot shape, and a screen angle of 45 °, and the transmission density of the formed halftone image is arbitrary. 30 points of the densitometer [X
-Rite: X-rite 310TR], and the average density ODav was evaluated.

-Evaluation of Peeling Force- A peeling edge shown in FIG. 7A was formed with a screen frequency of 70 L / cm, a halftone dot square, and a halftone image of 0% at a screen angle of 45 °. As shown in b), the first support is cut out to a width of 20 mm in the sub-scanning direction, and the first support is fixed to the moving plate using HEIDON [TYPE 14DR, manufactured by Shinto Kagaku Co., Ltd.]. Peeling angle is always 90
°, transport speed 40 mm / sec, length 80 m
m was measured, and the average value [Fav] was evaluated.

Table 1 shows the above results.

[0102]

[Table 1]

Example 2 The following colorant layer forming composition solution C and solution B as in Example 1 were separately kneaded and dispersed using a Henschel mixer and a sand mill, and then the above solution C, solution B and polyisocyanate compound [Nippon Polyurethane Industry Co., Ltd., Coronate H
X; 100% of active ingredient] in a weight ratio of 100: 2.39:
The mixture was mixed at 0.32 and stirred with a dissolver to prepare a colorant layer forming coating liquid 2.

The prepared colorant layer forming coating liquid 2 was dispersed in an ultrasonic wave and then extruded by extrusion, and a transparent polyethylene terephthalate film having a thickness of 100 μm, which is a first support, was treated with corona discharge on one side [Toray ( Co., Ltd., Lumirror T60], and then dried using a heat roll at a temperature of 100 ° C. and a linear pressure of 200 kg /
cm and a calendar process at a transport speed of 60 m / sec.
Further, it was aged at 60 ° C. for 120 hours to obtain a thickness of 0.1 mm.
A 70 μm colorant layer was formed.

<Colorant Layer Forming Composition C Liquid> Ferromagnetic metal powder [MAP T1650SB, manufactured by Kanto Denka Kogyo Co., Ltd.] 100 parts Polyurethane resin [Toyobo Co., Ltd., Byron UR4122] 10.0 parts Polyester resin [Toyobo Co., Ltd., Byron 280] 5.0 parts Phosphate ester [Toho Chemical Industry Co., Ltd., Phosphanol RE610] 3.0 parts Methyl ethyl ketone 105.0 parts Toluene 105.0 parts Cyclohexanone 90.0 Next, the protective layer forming coating liquid 5 of Example 1 was applied onto the above-mentioned colorant layer by a reverse bar coater application, dried and applied to the above-mentioned colorant layer, and then aged at 60 ° C. for 72 hours. Thus, a protective layer having a thickness of 0.27 μm was formed.

Separately, a second support having a thickness of 24 μm
m [D1] transparent polyethylene terephthalate film [Diafoil Hoechst Co., Ltd .;
100E], the adhesive layer forming coating liquids 2 to 7 having the following composition were applied by a comma coater and dried to provide an adhesive layer having a film thickness [D2] shown in Table 2.

<Adhesive Layer Forming Coating Solution 2> Styrene-isoprene copolymer [elongation: 1300%, Clayton D-1117, manufactured by Shell Japan K.K.] 23.7 parts Polyethylene wax toluene dispersion [polyethylene wax Melting point: 116 ° C., average particle diameter: 0.5 μm, maximum particle diameter: 2.5 μm, active ingredient: 13% by weight] 10.0 parts Toluene 36.3 parts Methyl ethyl ketone 30.0 parts <Coating liquid 3 for forming adhesive layer> Styrene-isoprene Copolymer [Elongation: 1500%, Shell Japan Co., Ltd., Kraton D-KX406] 20.0 parts Silicone modified resin [Toa Gosei Chemical Industry Co., Ltd., Cymac US270] 5.0 parts Toluene 45.0 parts Methyl ethyl ketone 30.0 parts <Adhesive layer forming coating liquid 4> Styrene-isoprene copolymer [elongation: 1500 %, Clayton D-1113, manufactured by Shell Japan K.K. 22.4 parts Silicone-modified resin [Cymac US270, manufactured by Toa Gosei Chemical Industry Co., Ltd.] 1.3 parts Polyethylene wax dispersion [15% by weight of active ingredient; 8.7 parts Toluene 37.6 parts Methyl ethyl ketone 30.0 parts <Coating liquid for forming adhesive layer 5> Urethane-based resin [elongation: 900%, Nippon Polyurethane Co., Ltd.] 23.7 parts Toluene dispersion of polyethylene wax [13% by weight of active ingredient, melting point of polyethylene wax 116 ° C., average particle size 0.5 μm, maximum particle size 2.5 μm] 10.0 parts Toluene 36. 3 parts Methyl ethyl ketone 30.0 parts <Coating liquid 6 for forming adhesive layer> Styrene-butadiene copolymer [elongation: 6 0%, Shell Japan Co., Ltd., Clayton D-1118] 19.9 parts Aliphatic hydrocarbon resin [Arakawa Chemical Industries, Ltd., Alcon P115] 2.5 parts Silicone modified resin [Toa Gosei Chemical Industry Co., Ltd. Co., Ltd., Cymac US270] 1.3 parts Toluene dispersion of polyethylene wax [active ingredient 13% by weight, melting point of polyethylene wax 116 ° C., average particle diameter 0.5 μm, maximum particle diameter 2.5 μm] 10.0 parts toluene 36.3 parts Methyl ethyl ketone 30.0 parts <Coating liquid for forming adhesive layer 7> The styrene-butadiene copolymer of the coating liquid for forming adhesive layer 6 was replaced with a styrene-ethylene-butadiene copolymer [elongation: 500% The coating liquid was prepared in the same manner as in the adhesive layer forming coating liquid 6, except that Crayton G-1650 manufactured by Shell Japan Co., Ltd. was used.

Next, the surface of the protective layer provided on the first support and the surface of the adhesive layer provided on the second support were opposed to each other, and were subjected to a pressure treatment [roll temperature; 23 ° C., transfer speed;
Sec, pressure 6.0 kg / cm] to produce an image forming material.

Using the image forming material produced in this way, image exposure was carried out under the same conditions as in Example 1, and then peeled off to remove the dirt on the resolution and the exposed portion on the same basis as in Example 1.
The peeling force at the time of peeling the first support and the second support was evaluated according to the following criteria.

-Evaluation of Peeling Force- The peeling edge shown in FIG. 7A was formed with a screen frequency of 175 lines, a halftone dot square, and a halftone image of 0% at a screen angle of 45 °. ), Cut out to a width of 20 mm in the sub-scanning direction, fix the first support to the movable plate using HEIDON [TYPE14DR, manufactured by Shinto Kagaku Co., Ltd.], and peel off the second support with the first support. Is always 90 °
So that the transport speed is 20 mm / sec and the length is 80 mm
Was measured, and the average value [Fav] was evaluated.

Table 2 shows the above results.

[0112]

[Table 2]

Example 3 The colorant layer forming composition C liquid kneaded and dispersed in Examples 1 and 2,
The solution B was mixed at a weight ratio of 100: 2.39, and stirred with a dissolver to prepare an image forming layer forming coating solution 3.

After the adjusted image forming layer forming coating liquid 3 was dispersed by ultrasonic wave, it was extruded by extrusion coating.
A transparent polyethylene terephthalate film having a thickness of 188 μm as a first support [Lumirror T6 manufactured by Toray Industries, Inc.
0], then calendered using a heat roll at a temperature of 100 ° C. and a linear pressure of 200 kg / cm at a conveying speed of 60 m / sec to a thickness of 0.70 μm
Was formed.

Then, coating liquids 1 to 6 having the following composition were formed on the above-mentioned image forming layer, and after dispersing by ultrasonic wave, the solution was applied to the image forming layer by a reverse bar coater and dried. Then, a release force adjusting layer having a film thickness shown in Table 3 was provided.

<Release Force Adjusting Layer Forming Coating Solution 1> Polyvinyl Alcohol [Gohsenol EG30, manufactured by Nippon Synthetic Chemical Co., Ltd.] 5.0 parts Distilled water 95.0 parts <Removing force adjusting layer forming coating solution 2> Polyvinyl 1. Alcohol [Kuraray Co., Ltd., Kuraray Poval KM-118] 5.0 parts Distilled water 95.0 parts <Coating solution 3 for forming a peeling force adjusting layer> Methyl cellulose [Shin-Etsu Chemical Co., Ltd., Metrose SM15] 0 parts Distilled water 98.0 parts <Coating liquid 4 for forming release force adjusting layer> Polyvinyl alcohol [Kuraray Co., Ltd., Kuraray Povar KM-118] 3.0 parts Rubber latex (active ingredient 48% by weight) [Japan ZEON CORPORATION, Nipol SX1503, glass transition temperature: -20 ° C] 2.0 parts Distilled water 95.0 parts <Coating liquid 5 for forming peeling force adjusting layer> Methyl cellulose [Shin-Etsu Chemical Co., Ltd.] 2.8 parts polyester latex (30% by weight of active ingredient) [Pesthresin A210, glass transition temperature: 40 ° C. or less] manufactured by Takamatsu Oil & Fats Co., Ltd. 2.3 parts distilled water 94. 9 parts <Coating liquid 6 for forming a peeling force adjusting layer> Methyl cellulose [Metroze SM15 manufactured by Shin-Etsu Chemical Co., Ltd.] 2.8 parts Polyester latex (active ingredient: 25% by weight) [Pesthresin A615G manufactured by Takamatsu Oil & Fats Co., Ltd.] 2.8 parts Distilled water 94.4 parts Separately, a transparent polyethylene terephthalate film having a thickness of 24 μm [D1] and easily treated on one side, which is a second support, [diafoil Hoechst Co., Ltd.] ), T100E], the coating liquid 1 for forming an adhesive layer used in Example 1 was applied with a comma coater, and dried.
2] was provided.

Then, the surface of the peeling force adjusting layer provided on the first support and the surface of the adhesive layer provided on the second support were opposed to each other, and were subjected to pressure treatment [roll temperature; 23 ° C., transfer speed;
mm / sec, pressure 6.0 kg / cm] to produce an image forming material.

Using the image forming material produced in this manner, the exposure surface was adjusted from the side of the first support and the focus was adjusted to the interface between the first support and the image forming layer of the image forming material. ) Using an EV laser proofer (manufactured by Konica Corporation, rotation speed: 425 rotations, power: 100%), and then peeled off. Then, after laminating a resin layer by the method shown below, The evaluation criteria were used to evaluate the resolution, dirt on the exposed portion, the peeling force when peeling the first support from the second support, and the peeling force after storage.
In addition, the halftone dot% in the evaluation standard was shown by the halftone dot% of the unexposed portion.

<Resin Layer Laminating Method 1> A silicone resin [Dialomer SP2105, manufactured by Dainichi Seika Co., Ltd.] dissolved in methyl ethyl ketone at 4% by weight was coated on one surface of a 6.0 μm thick polyethylene terephthalate film with a wire bar. After coating and drying, a heat-resistant lubricating layer having a thickness of 0.3 μm was provided. Separately, the following coating liquid for forming a release layer and the coating liquid for forming a transfer layer are dispersed and adjusted using a sand mill, and are sequentially applied to the surface opposite to the heat-resistant lubricating layer using a wire bar.
After drying, a release layer and a transfer layer were laminated to a thickness of 0.6 μm and a thickness of 0.3 μm to obtain a hot-melt type thermal transfer ink sheet.

-Coating solution for forming release layer- Ethylene-vinyl acetate copolymer [Evaflex EV210, manufactured by DuPont-Mitsui Polychemicals Ltd.] 0.3 parts Carnauba wax 9.7 parts Methyl ethyl ketone 45.0 parts Methyl isobutyl ketone 45.0 parts-Coating solution for forming transfer layer-Ethylene-vinyl acetate copolymer [Evaflex EV40Y, manufactured by DuPont-Mitsui Polychemicals Co., Ltd.] 2.5 parts Phenol resin [Tamanol 526, manufactured by Arakawa Chemical Industries, Ltd.] 17.5 parts Methyl ethyl ketone 80.0 parts The ink sheet was superimposed on the image forming layer surface on which an image was formed, and the heat resistance of the ink sheet was measured using a thermal transfer printer having a thermal head of A3 width with a dot density of 8 dots / mm. 0.4 W / dot output from thermal layer side, cycle of thermal head / power-on time 10/10 msec, transport speed 1
Heating was performed at a rate of 2.5 mm / sec to transfer the molten ink and laminate a resin layer.

<Resin Layer Laminating Method 2> A 26 μm-thick surface-roughened polyethylene terephthalate film [E-180, manufactured by Diafoil Hoechst Co., Ltd.]
A heat-sensitive transfer resin layer coating solution having the following composition was applied with a wire bar and dried to prepare a transfer foil having a thickness of 4.0 μm.

—Coating solution for heat-sensitive transfer resin layer— Polyester resin emulsion [30% by weight of active ingredient, manufactured by Takamatsu Yushi Co., Ltd .: Pesresin A-515G] 29.3 parts Polyethylene resin emulsion [35% by weight of active ingredient, Toho Chemical Co., Ltd .: Hitec E-1000] 3.0 parts The image forming layer on which the image was formed faces the heat-sensitive transfer resin layer surface of the transfer foil, and the thickness is 1 mm around and the rubber hardness is 60.
Using a transfer device equipped with a 140 mm diameter metal heat roll wound with heat resistant silicone rubber and a 140 mm diameter metal roll on the opposite side, a linear pressure of 6 kg / cm, a heat roll temperature of 170 ° C., and a transfer speed of 2.5 cm After performing a heat treatment at a rate of / sec, the heat-sensitive transfer resin layer was laminated on the image forming material by peeling off the transfer foil support.

<Resin Layer Laminating Method 3> A hot melt ink of the following composition was stirred and mixed with a dissolver while heating to 160 ° C. to prepare a hot melt ink jet ink. Using this molten ink and Jolt [manufactured by Hitachi Koki Co., Ltd.] as an ink jet printer, the amount of the hot molten ink applied to the image forming layer surface on which an image was formed was 20 g / average.
m ² , and a resin layer was laminated on the entire surface.

—Hot-melt ink composition— Carnauba wax 52.0 parts Microcrystalline wax [Hi-Mic 2065, manufactured by Nippon Seiro Co., Ltd.] 40.0 parts Ethylene-methyl methacrylate copolymer [Sumitomo Chemical Co., Ltd.] 3.0 parts Rosin ester [Superester A75 manufactured by Arakawa Chemical Industries, Ltd.] 5.0 parts <Resin layer laminating method 4> Styrene-butyl acrylate copolymer [Pico Toner 1221 manufactured by Goodyear Corporation] Was milled to an average particle size of 5.0 μm using a jet mill, and an electrostatic copier [Konica Corporation] was used as toner.
And KONICA U-BIX4345AF], the toner was transferred to the entire surface of the image forming layer on which the image was formed, and a resin layer was laminated.

<Resin Layer Laminating Method 5> An ultraviolet curable resin composition having the following composition was prepared, and the entire surface of the ultraviolet curable resin composition was transferred onto an image-formed layer surface using an offset printing machine. Irradiate the coated surface with ultraviolet rays [Light irradiation source: High pressure mercury lamp of 60 W / cm ² , distance: 10 c
m, irradiation time: 45 seconds], and a resin layer having a thickness of 10 μm was laminated.

-Ultraviolet curable resin composition- Bis (3,4-epoxy-6-methylcyclohexylmethyl) adipate [Union Carbide Co., Ltd., ERL4299] 7.0 parts Bisphenol A glycidyl ether 1.0 part 1,4- Butanediol glycidyl ether 1.3 parts Triarylsulfonium fluoroantimony 7.0 parts <Evaluation criteria> -Evaluation of resolution- As the PS data, an exposed portion and an unexposed portion are formed for each line in the main scanning direction of the drum of 4000 DPI. An image is exposed using such a vertical stripe pattern, and the image-formed vertical stripe pattern is arbitrarily extracted at 30 points in the main scanning direction, observed in the sub-scanning direction with a loupe, and examined for lines / spaces per inch (this 1) and the difference between the maximum number and the minimum number (Δ number) was evaluated.

-Evaluation of dirt on the exposed portion- A 0% halftone image was formed at a screen ruling of 175 lines, a halftone dot square, and a screen angle of 45 °, and the transmission density of the formed halftone image was changed to an arbitrary value. 30 points were measured with a densitometer [X
-Rite: X-rite 310TR], and the average density ODav was evaluated.

-Evaluation of Peeling Force- A peeling edge shown in FIG. 7A was formed with a screen frequency of 175 lines, a halftone dot square, and a halftone image of 0% at a screen angle of 45 °. ), Cut out to a width of 20 mm in the sub-scanning direction, fix the first support to the movable plate using HEIDON [TYPE14DR, manufactured by Shinto Kagaku Co., Ltd.], and peel off the second support with the first support. Is always 90 °
So that the transport speed is 50 mm / sec and the length is 80 mm
Was measured, and its maximum value [Fmax-b] and average value [Fav-b] were evaluated.

-Evaluation of Peeling Force After Storage- After each image forming material was stored at 60 ° C. for 12 hours, the peeling force after storage was measured in the same manner as the evaluation performed in the evaluation of the peeling force. The maximum value [Fmax-a] and the average value [Fav-a] were evaluated.

Table 3 shows the above results.

[0131]

[Table 3]

Example 4 The colorant layer forming composition solution C kneaded and dispersed in Example 2 and the solution B of Example 1 were separately kneaded and dispersed using a Henschel mixer and a sand mill. Solution B and polyisocyanate compound [Nihon Polyurethane Industry Co., Ltd.
, Coronate HX; active ingredient 100%] in a weight ratio of 1
The mixture was mixed at 00: 2.39: 0.32 and stirred with a dissolver to prepare a colorant layer forming coating liquid 2.

The prepared colorant layer forming coating liquid 2 was dispersed in an ultrasonic wave, and then extrusion-coated by extrusion, and a transparent polyethylene terephthalate film [Toray (100 μm) having a thickness of 100 μm and having one surface treated with corona discharge was used. Co., Ltd., Lumirror T60], and then dried using a heat roll at a temperature of 100 ° C. and a linear pressure of 200 kg /
cm, and calendering is performed at a transport speed of 50 m / sec.
Further, it was aged at 60 ° C. for 120 hours to obtain a thickness of 0.1 mm.
A colorant layer of 65 μm was formed.

Next, a coating liquid 6 for forming a protective layer having the following composition was prepared using a sand mill, dispersed by ultrasonic wave, applied on the colorant layer by a reverse bar coater, dried, and then heated to 60 ° C. And aged for 72 hours.
A 25 μm protective layer was formed.

<Protective Layer Forming Coating Solution 6> Phenoxy Resin [Phenoxy Resin PKHJ, Phenoxy Associates Co., Ltd.] 7.5 parts Polyethylene wax dispersion (active ingredient 15% by weight) [Koyo Chemical Co., Ltd., Microflat CE-155] 2.0 parts Silica surface-treated with a silicone-based compound [Silohobic 100 manufactured by Fuji Silysia Chemical Ltd.] 0.2 parts Polyisocyanate compound [Coronate HX manufactured by Nippon Polyurethane Industry Co., Ltd.] 2.0 parts Toluene 120.0 parts Cyclohexanone 80.0 parts Further, on the above-mentioned protective layer, a release force adjusting layer forming coating liquid 7 to 10 having the following composition was prepared, and after ultrasonic dispersion, a reverse bar coater was applied. The coating was dried and applied on the image forming layer to provide a peeling force adjusting layer having the film thickness shown in Table 4.

<Release Force Adjusting Layer Forming Coating Solution 7> Polyvinyl Alcohol [Kuraray Co., Ltd., Kuraray Poval KM-118] 3.8 parts Methylcellulose [Shin-Etsu Chemical Co., Ltd., Metrose SM15] 0.2 parts Polyurethane-based latex [active ingredient 30% by weight, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Superflex 110, glass transition temperature: 46 ° C] 13.3 parts Distilled water 82.7 parts <Coating liquid 8 for forming a peeling force adjusting layer > Polyvinyl acetal [Active ingredient 8% by weight, Sekisui Chemical Co., Ltd., ESREC KX-1] 62.5 parts Polyurethane latex [Active ingredient 30% by weight, Daiichi Kogyo Seiyaku Co., Ltd., Superflex 110, Glass transition temperature: 46 ° C] 10.0 parts Distilled water 14.0 parts Isopropyl alcohol 13.5 parts <Coating liquid 9 for forming a peeling force adjusting layer> Tilcellulose [Shin-Etsu Chemical Co., Ltd., Metrolose SM15] 3.6 parts Rubber latex [Active ingredient 41% by weight, Nippon Zeon Co., Ltd., Nipol 1562, glass transition temperature: -21 ° C] 10.7 parts Distilled water 75.7 parts Isopropyl alcohol 10.0 parts <Coating liquid 10 for forming a peeling force adjusting layer> Methyl cellulose [manufactured by Shin-Etsu Chemical Co., Ltd., Metros SM15] 2.4 parts Hydroxypropyl cellulose [manufactured by Nippon Soda Co., Ltd.] 5.6 parts of distilled water 72.0 parts of isopropyl alcohol 20.0 parts Further, a transparent polyethylene terephthalate film [diamond] having a thickness of 24 μm [D1], which is a second support, and which has been easily treated on one side, has been prepared. Foil Hoechst Co., Ltd., T100E], an adhesive layer forming coating liquid 8 having the following composition is applied with a comma coater. , And dried to provide an adhesive layer having a film thickness [D2] shown in Table 4.

<Adhesive Layer Forming Coating Liquid 8> Styrene-isoprene copolymer [elongation: 1300%, Clayton D-1117, manufactured by Shell Japan K.K.] 24.0 parts Aliphatic hydrocarbon resin [Arakawa Chemical Industries Manufactured by Alcon P125] 6.0 parts Toluene 42.0 parts Methyl ethyl ketone 28.0 parts Next, the peeling force adjusting layer provided on the first support and the adhesive provided on the second support The layer faces each other, and pressure treatment is performed [roll temperature: 23 ° C., transfer speed: 240 mm / sec.
The pressure was 6.0 kg / cm] to produce an image forming material.

Using the image forming material produced in this manner, the exposure surface was adjusted from the first support side to the focal point at the interface between the first support and the colorant layer of the image forming material, and postscript data (PS data). ), The resolution in the sub-scanning direction at the time of exposure is set to 1333 L / cm, and a dry setter [manufactured by Heidelberg Prepress Co., Ltd .;
55], the film was peeled off, and the resolution, the stain on the exposed portion, the peeling force when peeling the first support and the second support, and the peeling force after storage were evaluated according to the following criteria. In addition, the halftone dot% in the evaluation standard was shown by the halftone dot% of the unexposed portion.

-Evaluation of Resolution- Image exposure is performed using a vertical stripe pattern in which an exposed portion and an unexposed portion are formed for each line in the main scanning direction of the 1693 DPI drum as PS data, and the image-formed vertical stripes are formed. The pattern is arbitrarily extracted in the main scanning direction at 30 points, observed in the sub-scanning direction with a loupe, and the average number of lines / spaces per inch (this is regarded as one) and the difference between the maximum number and the minimum number ( Δ lines) were evaluated.

-Evaluation of Stain on Exposed Area- A halftone dot image of 0% is formed at a screen ruling of 70 L / cm, a halftone dot round shape, and a screen angle of 45 °, and the transmission density of the halftone dot image formed is arbitrary. Were measured using the visual density of a densitometer [X-0rite 310TR], and the average density ODav was evaluated.

-Evaluation of Peeling Force- A peeling edge shown in FIG. 7A was formed with a screen frequency of 70 L / cm, a halftone dot square, and a halftone image of 0% at a screen angle of 45 °. As shown in b), the first support is cut out to a width of 20 mm in the sub-scanning direction, and the first support is fixed to the moving plate using HEIDON [TYPE 14DR, manufactured by Shinto Kagaku Co., Ltd.]. Peeling angle is always 90
°, conveying speed 80 mm / sec, length 80 m
m, and the maximum value [Fmax-b] and the average value [Fav-b] were evaluated.

-Evaluation of Peeling Force After Storage- Each image forming material was stored at 50 ° C. for 48 hours, and then the peeling force after storage was measured in the same manner as the evaluation performed in the evaluation of the peeling force. The maximum value [Fmax-a] and the average value [Fav-a] were evaluated.

Table 4 shows the above results.

[0144]

[Table 4]

[0145]

According to the ablation-type image forming material of the present invention, a high-resolution image can be obtained by easily peeling.

[Brief description of the drawings]

FIG. 1 is an image diagram when a peeling end is provided from a first support side.

FIG. 2 is a diagram showing a relationship between a laser scanning direction and a peeling edge.

FIG. 3 is a diagram showing an example of the shape of a peeled end.

FIG. 4 is a diagram showing an example of the length of a peeled end.

FIG. 5 is a diagram illustrating a position of a peeling end with respect to a transport direction.

FIG. 6 is a diagram illustrating a case where a portion exposed at the time of image exposure of the immediately preceding image forming material is used as a peeling edge.

FIG. 7 is a view showing a peeled end formed in the embodiment.

[Explanation of symbols]

 1 Peeled edge formed by exposure to laser light

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Toshihisa Takeyama 1 Konica Corporation, Sakura-cho, Hino-shi, Tokyo In-house F-term (reference) 2H025 AB01 AC08 AD05 BB00 BH02 CB00 DA33 DA35 DA39 FA21 FA50 2H096 AA03 BA13 CA09 EA04 GA43 LA12 2H111 AA26 AA35 AA50 AB01 AB02 BA02 BA03 BA04 BA05 BA09 BA53 BA55 BA62 BA63 HA01 HA14 HA23 HA35

Claims (19)

[Claims] 1. An image forming layer on a first support, an adhesive layer in contact with the image forming layer, and a second support in this order, wherein the thickness of the second support is D1, and the thickness of the adhesive layer is D2. When you do
An ablation-type image-forming material, wherein 2 / D1 is in the range of 0.4 to 1.5 and the image-forming layer contains a releasable substance. 2. An image forming layer, an adhesive layer and a second support are provided on a first support in this order, and the thickness of the second support is D1,
When the thickness of the adhesive layer is D2, D2 / D1 is 0.4 to
An ablation type image forming material which is in the range of 1.5 and contains a release material in the adhesive layer. 3. An ablation type image forming apparatus according to claim 1, wherein said image forming layer is constituted by laminating a colorant layer and a protective layer on a first support in this order. material. 4. The method according to claim 1, wherein the releasable material is WAX, an organic solvent-soluble silicone or a fluorine-based compound, or a filler surface-treated with a silicone or a fluorine-based compound. The ablation-type image forming material according to the above. 5. An image forming layer, an adhesive layer and a second support are provided on a first support in this order, and the thickness of the second support is D1,
When the thickness of the adhesive layer is D2, D2 / D1 is 0.4 to
An ablation-type image forming material which is in the range of 1.5 and wherein a peeling force adjusting layer is laminated between the adhesive layer and the image forming layer. 6. The ablation-type image forming material according to claim 5, wherein the release force adjusting layer contains a water-soluble resin. 7. The ablation type image forming material according to claim 6, wherein the release force adjusting layer further contains a latex. 8. The ablation type according to claim 5, wherein the image forming layer is formed by laminating a colorant layer and a protective layer on a first support in this order. Image forming materials. 9. The method according to claim 1, wherein the transmittance of the exposure light wavelength of the first support is 80% or more.
The ablation-type image forming material according to 4, 5, 6, 7, or 8. 10. The AST of the binder resin of the adhesive layer
The elongation defined by MD412 or JIS K6301 is at least 600%.
The ablation-type image forming material according to 2, 3, 4, 5, 6, 7, 8, or 9. 11. The image forming layer surface of the ablation type image forming material according to claim 1 after forming an image forming layer on a first support and separately forming an adhesive layer on a second support. A method for producing an ablation-type image forming material, wherein the method and the adhesive layer are integrated by lamination. 12. The ablation-type image forming material according to claim 5, wherein an image forming layer and a peeling force adjusting layer are formed in this order on a first support, and an adhesive layer is separately formed on a second support. A method for producing an ablation-type image forming material, wherein the surface of the image forming layer and the surface of the adhesive layer are later integrated by lamination. 13. An exposed portion of an image forming layer by performing image exposure with laser light from the first support side using the ablation type image forming material according to claim 9, and then peeling the second support. And transferring it to the second support and removing it. 14. The image forming method according to claim 13, wherein a resin layer is further laminated on the image forming layer side after the exposed portion of the image forming layer is transferred to the second support and removed. 15. The image forming method according to claim 14, wherein the laminating of the resin layer is performed by a method of transferring the resin layer or a method of applying the resin layer. 16. The method for transferring the resin layer includes a melt transfer method for transferring a molten ink layer, a resin layer heat transfer method using a transfer foil, an electrophotographic method using a transparent toner, and a heat-meltable ink. 16. The image forming method according to claim 15, wherein the image forming method is any one of an inkjet method. 17. The image forming method according to claim 15, wherein the method of applying the resin layer is a method of applying an active energy ray after applying an active energy ray-curable resin. 18. The method according to claim 13, wherein image exposure is performed by scanning with a laser beam.
2. The image forming method according to 1., 19. An image forming method using the ablation type image forming material according to claim 9 to form a peeled end by exposing the outside of the image area with laser light from the side of the first support.