JP2686940B2 - Method for transferring uneven pattern and transfer sheet used for the method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for transferring a concavo-convex pattern and a transfer sheet used for the method. [Problems to be Solved by Conventional Techniques and the Invention] Conventionally, in order to give a three-dimensional effect to a pattern provided on a smooth surface, it is performed to give the pattern itself a thickness. In addition to this, a special printing method is required in order to provide a sharp pattern, and it is difficult to form a sharp bulge, and there is a problem that a beautiful three-dimensional pattern cannot be easily formed. The present invention has been made in view of the above points, and is a method of transferring a concavo-convex pattern that can easily form a beautiful three-dimensional pattern that is sharp, durable, and excellent in design, and a transfer sheet used in the method. The purpose is to provide. [Means for Solving Problems] The present invention relates to a method for forming a concavo-convex pattern characterized by sequentially performing the following steps (a) to (d). (A) Ionizing radiation having a releasable surface A protective layer and a colored pattern layer are sequentially provided on the peelable surface of the permeable sheet, and an ionizing radiation shielding pattern is provided on either the front or back surface of the sheet or between the protective layer and the colored pattern layer or on the surface of the colored pattern layer. A step of preparing a transfer sheet provided with the protective layer formed of a thermosetting resin, and (b) the transfer sheet and the substrate to be transferred are ionizing radiation curable resin layers. (C) A step of irradiating ionizing radiation from the side of the ionizing radiation permeable sheet to cure the ionizing radiation curable resin layer corresponding to the portion without the ionizing radiation shielding pattern (d) Ionizing radiation Peel the permeable sheet Then, a part of the resin in the uncured portion of the ionizing radiation curable resin layer is attached to the permeable sheet to be removed, and at the same time, a cured portion in which the protective layer and the coloring layer are in close contact is formed. " The present invention also provides that "a protective layer and a colored pattern layer are sequentially provided on the releasable surface of an ionizing radiation permeable sheet having a releasable surface, and either the front surface or the back surface of the sheet or the protective layer. And a colored pattern layer, or a surface of the colored pattern layer is provided with an ionizing radiation-shielding pattern, a transfer sheet having a concavo-convex pattern characterized in that the protective layer is formed of a thermosetting resin. The transfer sheet used in the method. " [Operation] According to the present invention, in a portion having an ionizing radiation shielding pattern, the ionizing radiation curable resin on the transferred substrate is not cured and is removed by peeling of the ionizing radiation transparent sheet, and thus the ionizing radiation shielding property is improved. The ionizing radiation curable resin hardens and remains in the non-patterned area, and the protective layer and the colored pattern layer are transferred only in this area.As a result, a sharp and beautiful uneven pattern is formed on the transferred substrate for forming the uneven pattern. It is formed. Further, according to the present invention, since the protective layer formed by thermosetting resin and heat-cured is transferred to the surface of the uneven pattern to be formed, the uneven pattern having excellent surface physical properties (durability) is formed. Is obtained. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a transfer sheet used in the present invention. The transfer sheet 1 of the present invention comprises an ionizing radiation-transmitting sheet 2, a protective layer 3 and a colored pattern layer 4 sequentially provided on the sheet 2. , And a structure having the ionizing radiation shielding pattern 5. The ionizing radiation permeable sheet 2 is made of a sheet or a film having an ionizing radiation transmitting property. When the ionizing radiation is an ultraviolet ray, for example, a sheet or a film of polyester, polyamide (eg, nylon), polypropylene, or a fluorine-based resin may be used. However, those which do not contain a pigment or the like which has an effect on ultraviolet transmittance are preferable. When the ionizing radiation is an electron beam, there is no particular limitation because the electron beam has high transparency, and the above-described sheet or film having the property of transmitting ultraviolet rays can be used in principle, and paper or the like can be used. Since the ionizing radiation permeable sheet 2 supports the protective layer 3 and the colored pattern layer 4 in a transferable manner, at least the surface supporting the protective layer needs to be a peelable surface having releasability. If it does not have a property, it is used as a surface-releasable property by applying a releasable resin or composition. The thickness of the sheet 2 is 5 to 200 μm, especially 25 to 100 μm
Is preferred. The protective layer 3 is for protecting the surface of the concavo-convex pattern formed on the substrate to be transferred, and is transferred so as to cover the surface of the convex portion of the concavo-convex pattern by transfer. The layer 3 may be transparent or translucent. This protective layer 3 is formed of a thermosetting resin. Examples of the thermosetting resin include alkyd resin, butylated aminoaldehyde resin, phenol resin, phthalic acid resin, epoxy resin, urethane resin, melamine resin, unsaturated polyester resin, polysiloxane resin, and the like.
If necessary, these resin materials may contain additives such as curing agents, catalysts, colorants (dyes, pigments) and the like for use. The protective layer 3 is used as a layer for surface protection having excellent durability by finally heat-curing the resin, and the heat-curing time is not particularly limited. In the state, it may be cured by heating in advance. The colored pattern layer 4 is, for example, a layer to which coloring or various patterns are applied. The colored pattern layer 4 is transferred onto the convex portions of the concave and convex pattern in the same manner as the protective layer 3 by transfer. Is given. The pattern layer 4 may be formed as a uniform solid layer or may be provided in a partial pattern. The resin material forming the pattern layer 4 is not particularly limited.
For example, a resin used for forming a general pattern layer, a thermosetting resin that can be finally cured to provide excellent durability to the pattern layer 4 itself, or a non-cured solid at room temperature and heat A plasticizing ionizing radiation-curable resin can be used. When a thermosetting resin and the above ionizing radiation curable resin are used as the resin material forming the pattern layer 4, it is possible to obtain a robust pattern layer having excellent durability by curing. Among the resin materials used for forming the pattern layer 4, examples of resins used for forming the general pattern layer include ethyl cellulose, nitrocellulose, ethyl hydroxyethyl cellulose, cellulose acetate propionate, cellulose acetate butyrate, and cellulose acetate. Styrene resins and styrene copolymer resins such as cellulose derivatives, polystyrene and poly-α-methylstyrene; homo- or copolymerization of acrylic or methacrylic resins such as polymethyl methacrylate, polyethyl methacrylate, polyethyl acrylate and polybutyl acrylate Resins: Rosin, rosin-modified maleic resin, rosin-modified phenolic resin, rosin ester resin such as polymerized rosin; polyvinyl acetate resin,
A coumarone resin, a vinyltoluene resin, a vinyl chloride resin, a polyester resin, a polyamide resin, a butyral resin, or the like, which is selected from one kind or two or more kinds, and the like, are used as the thermosetting resin for forming the protective layer 3. Similar thermosetting resins can be used. Further, the ionizing radiation curable resin which is solid and thermoplastic at room temperature in the uncured state is a thermoplastic resin having a radically polymerizable unsaturated group, and there are the following two types. (1) Those having a radical polymerizable unsaturated group in a polymer having a glass transition temperature of 0 to 250 ° C. More specifically,
As the polymer, a polymer obtained by polymerizing or copolymerizing the following compounds (1) to (4) and introducing a radical polymerizable unsaturated group by the methods (a) to (d) described below can be used. Monomers having a hydroxyl group: N-methylol acrylamide, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 2
-Hydroxybutyl acrylate, 2-hydroxybutyl methacrylate, 2-hydroxy-3-phenoxypropyl methacrylate, 2-hydroxy-3-phenoxypropyl acrylate, and the like. Monomers having a carboxyl group: acrylic acid, methacrylic acid, acryloyloxyethyl monosuccinate and the like. Monomers having an epoxy group: glycidyl methacrylate and the like. Monomers having an aziridinyl group: 2-aziridinylethyl methacrylate, allyl 2-aziridinylpropionate and the like. Monomers having an amino group: acrylamide, methacrylamide, diacetone acrylamide, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate and the like. Monomer having a sulfone group: 2-acrylamide-
2-methylpropanesulfonic acid and the like. Monomers having isocyanate groups: adducts of diisocyanates and radically polymerizable monomers having active hydrogen, such as adducts of 1 to 1 mol of 2,4-toluene diisocyanate and 2-hydroxyethyl acrylate. Further, in order to adjust the glass transition point of the above-mentioned polymer or copolymer, or to adjust the physical properties of the cured film, the above-mentioned compound and the following monomers copolymerizable with this compound: Can also be copolymerized. Such copolymerizable monomers include, for example, methyl methacrylate, methyl acrylate, ethyl acrylate,
Ethyl methacrylate, propyl acrylate, propyl methacrylate, butyl acrylate, butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, t-butyl acrylate, t-butyl methacrylate, isoamyl acrylate, isoamyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, 2-ethylhexyl acrylate,
2-ethylhexyl methacrylate and the like. Then, the polymer or copolymer obtained as described above is introduced with a radically polymerizable unsaturated group by the following methods (a) to (d) to obtain the material according to the present invention. it can. (A) In the case of a polymer or copolymer of a monomer having a hydroxyl group, a monomer having a carboxyl group such as acrylic acid or methacrylic acid is subjected to a condensation reaction. (B) In the case of a polymer or copolymer of a monomer having a carboxyl group or a sulfone group, the above-mentioned monomer having a hydroxyl group is subjected to a condensation reaction. (C) In the case of a polymer or copolymer of a monomer having an epoxy group, an isocyanate group or an aziridinyl group, the above-mentioned monomer having a hydroxyl group or monomer having a carboxyl group is subjected to an addition reaction. (D) In the case of a polymer or copolymer of a monomer having a hydroxyl group or a carboxyl group, a monomer having an epoxy group, a monomer having an aziridinyl group, or a diisocyanate compound and a monomer having a hydroxyl group-containing acrylate The addition reaction is carried out with one mole to one mole of the adduct of the product. In order to carry out the above reaction, it is preferable to add a trace amount of a polymerization inhibitor such as hydroquinone and send dry air. (2) A compound having a melting point of room temperature (20 ° C.) to 250 ° C. and having a radical polymerizable unsaturated group. Specific examples include stearyl acrylate, stearyl methacrylate, triacryl isocyanurate, cyclohexanediol diacrylate, cyclohexanediol dimethacrylate, spiroglycol diacrylate, spiroglycol dimethacrylate, and the like. In the present invention, the above (1) and (2) can be used as a mixture, and a radically polymerizable unsaturated monomer can be added thereto. This radically polymerizable unsaturated monomer, when irradiated with ultraviolet rays or electron beams, is to improve the crosslink density and improve the heat resistance, and in addition to the above-mentioned monomers, ethylene glycol diacrylate,
Ethylene glycol dimethacrylate, polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, hexanediol acrylate, hexanediol dimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, trimethylolpropane diacrylate, trimethylolpropane dimethacrylate, penta Erythritol tetraacrylate, pentaerythritol tetramethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, pentaerythritol hexaacrylate, pentaerythritol hexamethacrylate, ethylene glycol diglycidyl ether diacrylate, ethylene glycol diglycidyl A Ludimethacrylate, polyethylene glycol diglycidyl ether diacrylate, polyethylene glycol diglycidyl ether dimethacrylate, propylene glycol diglycidyl ether diacrylate, propylene glycol diglycidyl ether dimethacrylate, polypropylene glycol diglycidyl ether diacrylate, polypropylene glycol diglycidyl ether dimethacrylate , Sorbitol diglycidyl ether diacrylate, sorbitol diglycidyl ether dimethacrylate, etc. can be used, and it is preferable to use 0.1 to 100 parts by weight with respect to 100 parts by weight of the solid content of the above-mentioned copolymer mixture. The above is fully curable by electron beam,
In the case of curing by irradiation with ultraviolet rays, sensitizers such as benzoquinone, benzoin, benzoin ethers such as benzoin methyl ether, halogenated acetophenones and viatyls which generate radicals by irradiation with ultraviolet rays can be used. The protective layer 3 and the pattern layer 4 can be formed by a known printing method using the resin as described above, and the thicknesses of both layers are 2 to 30 μm for the protective layer 3 and 1 for the pattern layer 4. It is 10 μm. The ionizing radiation shielding pattern 5 serves as a mask pattern for shielding ionizing radiation when irradiating ionizing radiation from the upper surface side of the transfer sheet, partially curing and curling an ionizing radiation-curable resin layer described later. Things. In this sense, the position where the ionizing radiation shielding pattern 5 is provided is the first position.
In the figure, the position is any position on the upper surface or the lower surface of the ionizing radiation permeable sheet 2, the lower surface of the protective layer 3, or the lower surface of the colored pattern layer 4. As the material for forming the shielding pattern 5, when the ionizing radiation is ultraviolet rays, a substance that reflects and shields the ultraviolet rays, for example, a filler such as titanium oxide, potassium sulfate, calcium carbonate, etc., and a particle size of 0.3 to Ink containing a pigment with a large hiding power of about 10 μm, a substance that absorbs ultraviolet rays, such as benzophenol-based, salicylate-based, benzotriazole-based, acrylonitrile-based ultraviolet absorbers, light-absorbing pigments, carbon black or inorganic substances Examples thereof include inks containing a quencher (for example, metal complex salt type or hindered amine type). When the ionizing radiation is an electron beam, examples of the ink include the above-described inks and inks containing other pigments. The ionizing radiation shielding pattern 5 can be formed by a normal printing method using these inks. Next, a method of transferring a concavo-convex pattern using the transfer sheet having the above-described configuration will be described in detail. First, as shown in FIG. 2, the above-mentioned transfer sheet 1 is superimposed on a transfer-receiving substrate 7 for forming a concavo-convex pattern provided by applying a separately prepared ionizing radiation-curable resin layer 6 to form a transfer sheet. Pattern layer 4 and pattern 5 and ionizing radiation curable resin layer 6
Is brought into contact with and brought into close contact (FIG. 3). The ionizing radiation-curable resin layer 6 may be provided only on the transfer-receiving base material 7 in advance as described above. 7 may be applied. As the substrate to be transferred 7, any material may be used.
For example, a metal plate or molded product such as stainless steel, steel, aluminum, or copper, glass, marble, ceramic, gypsum board, asbestos cement plate, calcium silicate plate,
Inorganic plates or molded products such as GRC (glass fiber reinforced cement), polyester, melamine, polyvinyl chloride,
Examples thereof include plates and molded articles of organic polymers such as diallyl phthalate, and sheets, films, wood, plywood, and wooden boards and molded articles such as particle boards thereof. The transfer-receiving substrate 7 may be subjected to a base treatment such as a filling treatment or a primer treatment, a treatment for improving adhesiveness, or the like. The ionizing radiation-curable resin layer 6 is mainly composed of a polymer, oligomer, monomer, or the like having a radically polymerizable double bond in the structure, and includes a photopolymerization initiator, a sensitizer, and other non-reactive Various grades containing polymers, organic solvents, waxes and other additives are readily available from the market and can be used in the present invention. The ionizing radiation curable resin layer 6 includes a gravure coat, a roll coat,
It can be formed by a known method such as flow coating or spray coating. The thickness of the resin layer 6 is 3 μm or more.
1 mm, especially 30 to 200 μm, is preferred. After the transfer sheet 1 and the transferred substrate 7 are overlapped with each other with the ionizing radiation curable resin layer 6 interposed therebetween to bring them into close contact with each other, the ionizing radiation 8 is applied from the side of the ionizing radiation transmitting sheet 2 which is the base material of the transfer sheet. Typical examples of the ionizing radiation 8 to be irradiated (FIG. 3) are ultraviolet rays and electron beams, but other types can also be used. Irradiation of ionizing radiation 8 causes ionizing radiation shielding pattern 5
The ionizing radiation-curable resin layer 6 is cured in the part without
The transferred substrate 7, the resin portion of the cured electron-radiation curable resin layer 6, the protective layer 3 and the colored pattern layer 4 are cured and integrated, while the portion having the ionizing radiation shielding pattern 5 is ionized. The radiation curable resin layer 6 is left uncured. When the ionizing radiation transmissive sheet 2 is peeled off after the irradiation with the ionizing radiation 8, the above-mentioned cured and integrated portion is transferred to the transfer substrate 7 side and remains, and in the uncured portion of the ionizing radiation-curable resin layer 6. The uncured ionizing radiation curable resin is removed together with the peeling of the sheet 2 while being adhered to the ionizing radiation permeable sheet 2 (integrating with the shielding pattern corresponding to the uncured portion, the protective layer and the pattern layer). As a result, a concave portion 9 in which a small amount of the uncured ionizing radiation curable resin 6a remains and a cured portion (convex portion) 10 made of the cured ionizing radiation curable resin are formed, so that the uneven pattern is transferred. The transferred material 11 thus obtained is obtained. The curing time of the protective layer 3 in the present invention is preferably in the state of the transfer sheet before transfer or at any time after transfer, but is not particularly limited to these times. In addition to the above curing time, for example, before transfer, that is, in the state of the transfer sheet, heating less than the original curing condition may be performed to semi-cure, and after transfer, final heating may be performed to completely cure. . The heating conditions when performing this curing, the heating temperature is 100 ~ 150 ℃,
The heating time is preferably 1 minute to 15 minutes. When the colored pattern layer 4 is made of a curable resin,
Although the curing time is not particularly limited, the protective layer 3
When it is formed of a thermosetting resin in the same manner as described above, it is preferable that the curing time be the same as that of the protective layer, and only when it is formed of an ionizing radiation curable resin, the ionizing radiation curable resin layer 6 is used. At the same time, it is preferable to cure by irradiation with ionizing radiation. In the method of the present invention, after the sheet 2 is peeled off, the uncured ionizing radiation-curable resin 6a remaining in the concave portion 9 may be cured by further irradiating with ionizing radiation, or the uncured ionizing radiation remaining in the concave portion 9 may be cured. The curable resin 6a may be removed. There are various physical removal methods and chemical removal methods for removing the uncured ionizing radiation-curable resin remaining in the concave portion 9, but the fact that the remaining uncured portion has high solubility in an organic solvent is used. It is preferable to employ a chemical removal method for dissolving and removing the uncured ionizing radiation-curable resin using an appropriate solvent. Solvents for dissolution and removal include esters such as ethyl acetate and n-butyl acetate; ketones such as methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone; and alcohols such as ethanol, isopropanol and n-butanol. Select and use according to the type of ionizing radiation curable resin. Dissolution removal by these solvents can be performed only by pouring or immersion, but as a more preferable method, a method of applying a solvent on the formed uneven surface, followed by buffing using a brush or a cotton buffing roller. There is. In the present invention, when the uncured ionizing radiation curable resin remaining in the recess as described above is cured and left without being removed,
Since the amount of uncured ionizing radiation-curable resin adhered to and removed from the ionizing radiation-transmissive sheet is not always constant, it is possible to form a concave portion having a variable depth, and the ionizing radiation-curable resin layer 6 There is an advantage that a colored shading pattern having a change in accordance with the depth of the concave portion and perfectly synchronized with the concave / convex pattern can be formed, for example, when the transparent coloring is applied to itself. Hereinafter, the present invention will be described in more detail with reference to specific examples. Example Polyester film having a thickness of 38 μm (made by Toray Industries, Inc.)
Is used as a base sheet, and a two-component urethane transparent ink (made by Morohoshi Ink Co., Ltd.) is applied to this surface in a solid form by gravure printing so that the thickness after drying is 3 μm to form a protective layer. After that, a 2-component urethane pearl ink (manufactured by Morohoshi Ink Co., Ltd.) was applied on the protective layer in a solid form by gravure printing so that the thickness after drying was 2 μm to form a colored pattern layer. Then, after that, a urethane white ink (manufactured by Moroboshi Ink Co., Ltd.) was printed using a gravure plate having a plate depth of 80 μm to form a white shielding pattern layer to prepare a transfer sheet. On the other hand, an ultraviolet curable paint (manufactured by Nippon Paint Co., Ltd.) was flow-coated on the treated surface of a calcium silicate plate having one surface subjected to an alkali-stop sealer treatment so as to have a thickness of 100 μm. Next, the transfer sheet was overlaid so that the surface on the light-shielding pattern layer side was in contact with the surface of the calcium silicate plate to which the ultraviolet-curable paint was applied, and the output 80 was output from the base sheet side of the transfer sheet.
Irradiation while passing through an irradiation device equipped with 5 w / cm ozoneless ultraviolet lamps at a speed of 20 m / min.
The substrate sheet was peeled off. After the sheet was peeled off, ultraviolet rays were further irradiated under the same conditions as described above to cure the uncured ultraviolet curable paint partially remaining in the concave portions. Then, it heated at 120 degreeC for 1 minute, and hardened | cured the 2 liquid hardening type ink of a protective layer and a pattern layer. Through the above steps, the ultraviolet curable coating corresponding to the portion without the shielding pattern layer provided on the base material sheet is cured to form a convex portion of the ultraviolet curable coating and the two-component curable ink is cured. The protective layer and the colored pattern layer are transferred onto the convex portion, while a part of the uncured UV-curable coating adheres to the base sheet of the transfer sheet at the portion corresponding to the portion having the shielding pattern layer. When the sheet was peeled, it was removed to form a recess. The obtained concavo-convex pattern had a sharp pattern and a beautiful colored appearance corresponding to the concavities and convexities due to the presence of the colored pattern layer. Further, the uneven pattern had excellent surface physical properties because the protective layer formed by curing the two-component curing type ink was present on the surface. Particularly in this embodiment,
Since the pattern layer is also formed and cured with the same two-component curable ink as the protective layer, the surface properties of the uneven pattern are remarkably excellent due to the synergistic effect of the durability of the protective layer and the pattern layer. . [Effects of the Invention] As described above, according to the method of the present invention, a transfer having a transferred substrate for forming an uneven pattern, an ionizing radiation shielding pattern, a protective layer made of a thermosetting resin, and a colored pattern layer The sheets are superposed through an ionizing radiation curable resin layer and irradiated with ionizing radiation, and then the ionizing radiation transparent sheet of the transfer sheet is peeled off to adhere the uncured ionizing radiation curable resin to the transparent sheet. On the other hand, a concave portion is formed by removing the concave portion, while a convex portion composed of a cured ionizing radiation curable resin layer, a protective layer transferred onto the layer and a colored pattern layer is formed, and a concave and convex pattern formed of the concave portion and the convex portion is formed. By adopting a method of transferring the above to the substrate to be transferred, it is possible to easily form a concavo-convex pattern that is sharp and has excellent durability, and has a beautiful appearance and excellent design. Further, according to the present invention, by using the transfer sheet having the above-mentioned structure, the protective layer formed (cured) of the thermosetting resin is always transferred to the surface of the convex portion of the concave-convex pattern. It is not necessary to perform the surface treatment (for example, top coat) that has been conventionally performed after pattern formation, and it has an uneven pattern with excellent surface physical properties such as scratch resistance, abrasion resistance, solvent resistance, chemical resistance, and weather resistance. It can be easily formed at all times. This effect can be obtained as a more excellent effect when the colored pattern layer is formed of the same thermosetting resin as the protective layer.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the present invention. FIG. 1 is a longitudinal sectional view showing an example of the transfer sheet of the present invention, and FIGS. 2 to 4 are each a method of the present invention. FIG. 1 ... Transfer sheet 2 ... Ionizing radiation transparent sheet 3 ... Protective layer, 4 ... Colored protective layer 5 ... Ionizing radiation shielding pattern 6 ... Ionizing radiation curable resin layer 7 ... Transferred substrate, 8 …… Ionizing radiation 10 …… Curing part

Claims (1)

(57) [Claims] A method for transferring an uneven pattern, which comprises performing the following steps (a) to (d) in order. (A) A protective layer and a colored pattern layer are sequentially provided on the releasable surface of an ionizing radiation permeable sheet having a releasable surface, and either the front or back surface of the sheet or between the protective layer and the colored pattern layer or colored. A step of preparing a transfer sheet having an ionizing radiation shielding pattern provided on the surface of the pattern layer, the transfer sheet comprising the protective layer formed of a thermosetting resin. (B) a step of laminating the transfer sheet and the substrate to be transferred via an ionizing radiation-curable resin layer. (C) a step of irradiating ionizing radiation from the ionizing radiation permeable sheet side to cure the ionizing radiation curable resin layer corresponding to a portion having no ionizing radiation shielding pattern. (D) peeling off the ionizing radiation-transmissive sheet to remove a part of the resin in the uncured portion of the ionizing radiation-curable resin layer by adhering to the transparent sheet, Forming step. 2. The method for transferring a concavo-convex pattern according to claim 1, wherein the uncured ionizing radiation curable resin remaining on the transfer substrate is removed after the ionizing radiation transparent sheet is peeled off. 3. After peeling off the ionizing radiation-permeable sheet, further irradiating with ionizing radiation to cure the uncured ionizing radiation-curable resin remaining on the substrate to be transferred. The uneven pattern according to claim 1 is transferred. Method. 4. The method for transferring the concavo-convex pattern according to any one of claims 1 to 3, wherein the thermosetting resin of the protective layer is heated and cured before or after the transfer. 5. A protective layer and a colored pattern layer are sequentially provided on the peelable surface of an ionizing radiation transparent sheet having a peelable surface, and either the front or back surface of the sheet or between the protective layer and the colored pattern layer or between the colored pattern layers. A transfer sheet having an ionizing radiation shielding pattern provided on the surface thereof, wherein the protective layer is formed of a thermosetting resin, which is used in a method for transferring an uneven pattern. 6. The transfer sheet according to claim 5, wherein the thermosetting resin of the protective layer is cured by heating.