WO2021065043A1 - Decorative material - Google Patents

Abstract

Provided is a decorative material which has a visual stereoscopic effect and has excellent wear resistance.　A decorative material having a substrate selected from a paper substrate and a fiber substrate, the decorative material having a first region and a second region which are in the same plane, wherein: the section of the decorative material which corresponds to the first region has, on the substrate thereof, a first cured product layer, the surface of which has release properties; the section of the decorative material which corresponds to the second region has, on the substrate thereof, a second cured product layer; and t1 is greater than 3.5μm and no greater than 30.0μm and the relationship t1<t2 is satisfied if the thickness of the first cured product layer is defined as t1 and the thickness of the second cured product layer is defined as t2.

Description

Cosmetic material

The present invention relates to a decorative material.

Conventionally, the surfaces of tables, counters, walls, floors, etc. are impregnated with an uncured resin solution of melamine resin in a porous base material such as titanium paper, and if necessary, laminated on phenol core paper or the like and then impregnated resin. A decorative material is used in which the liquid is cured by a hot press. A decorative material impregnated and cured with such a melamine resin exhibits physical properties such as strength, hardness, and heat resistance.

The decorative material as described above is required to have a design showing a high-class feeling, and a visual three-dimensional effect is imparted by forming an uneven shape on the surface.
As a decorative material having an uneven shape on the surface, an embossed decorative material using an embossed plate (mirror surface plate with a texture) having an uneven shape has been proposed (see, for example, Patent Documents 1 and 2). ).

However, in order to impart a desired uneven pattern design feeling to the surface of the decorative material described in Patent Documents 1 and 2, there is a problem that an embossed plate is required for each pattern, which is costly and difficult to manufacture. is there. Further, this decorative material has a problem that it is difficult to synchronize the uneven shape with the pattern of the base, and it is difficult to impart a high degree of design.

On the other hand, the decorative material of Patent Document 3 has been proposed as a decorative material having a surface uneven shape that does not use an embossed plate.

Japanese Unexamined Patent Publication No. 2015-193209 JP-A-2017-87544 International Publication No. 2016/148091

The decorative material of Patent Document 3 includes a paper base material, a release layer containing a cured product of an ionizing radiation curable resin provided on a part of the surface of the paper material base material, and the rest of the surface of the paper quality base material (paper quality). It is provided with a surface layer containing a cured product of a melamine resin provided on a portion of the surface of the base material on which a release layer is not provided). The decorative board of Patent Document 3 is a step of providing a release layer on a part of the surface of a paper substrate, impregnating the paper substrate with an uncured melamine resin, and covering the release layer with the uncured melamine resin. After that, it is produced by a method including a step of thermosetting the uncured melamine resin by heating and a step of peeling off the cured resin film covering the release layer.
Since the decorative material of Patent Document 3 does not use an embossed plate, the problems of Patent Documents 1 and 2 can be solved. However, the cosmetic material of Patent Document 3 frequently deteriorates in design over time.
The present invention has been made under such circumstances, and an object of the present invention is to provide a decorative material having a visual three-dimensional effect and excellent wear resistance.

As a result of diligent research by the present inventors, in the decorative material of Patent Document 3, the decorative layer on the base material is worn over time because the thickness of the surface layer containing the cured product of the melamine resin cannot be increased. It was found that the design was reduced.
Further, the present inventors have found that the reason why the thickness of the surface layer of the decorative material of Patent Document 3 cannot be increased is that the thickness of the release layer is thin. This is because when the thickness of the release layer is thin, if the thickness of the surface layer is increased, the thickness of the cured resin film on the release layer becomes thicker, and the cured resin film is peeled off when the cured resin film on the release layer is peeled off. This is because

An object of the present invention is to provide the following [1] to [7].
[1] A decorative material having a base material selected from a paper base material and a fiber base material, and the decorative material has a first region and a second region in a plane, and corresponds to the first region. The decorative material at the portion to be subjected to has a first cured product layer having a releasable surface on the substrate, and the decorative material at the location corresponding to the second region is placed on the substrate. It has a second cured product layer, and when the thickness of the first cured product layer is defined as t1 and the thickness of the second cured product layer is defined as t2, t1 is more than 3.5 μm and 30.0 μm or less. A decorative material that satisfies the relationship of t1 <t2.
[2] The decorative material according to [1], wherein the first cured product layer contains a curable resin and an inorganic filler.
[3] The decorative material according to [2], wherein the content of the inorganic filler is more than 20 parts by mass and 40 parts by mass or less with respect to 100 parts by mass of the curable resin.
[4] The decorative material in the portion corresponding to the first region has a first decorative layer at least in a part between the base material and the first cured product layer, according to [1] to [3]. The decorative material described in any of them.
[5] The decorative material in a portion corresponding to the first region has a permeation prevention layer between the base material and the first cured product layer, according to any one of [1] to [3]. Cosmetic material.
[6] The decorative material in the portion corresponding to the second region has a second decorative layer at least in a part between the base material and the second cured product layer, according to [1] to [5]. The decorative material described in any of them.
[7] The decorative material according to any one of [1] to [6], wherein the second cured product layer contains a melamine resin.

According to the present invention, it is possible to provide a decorative material having a visual three-dimensional effect and excellent wear resistance.

It is sectional drawing which shows one Embodiment of the decorative material of this invention. It is sectional drawing which shows the other embodiment of the decorative material of this invention. It is sectional drawing which shows one step of the manufacturing method of the decorative material of this invention. It is sectional drawing which shows one step of the manufacturing method of the decorative material of this invention. It is sectional drawing which shows one step of the manufacturing method of the decorative material of this invention. It is sectional drawing which shows one step of the manufacturing method of the decorative material of this invention.

[Cosmetic material]
The decorative material of the present invention is a decorative material having a base material selected from a paper base material and a fiber base material, and the decorative material has a first region and a second region in a plane, and the first region is described above. The decorative material in the portion corresponding to one region has a first cured product layer having a releasable surface on the base material, and the decorative material in the portion corresponding to the second region is the base. A second cured product layer is provided on the material, and when the thickness of the first cured product layer is defined as t1 and the thickness of the second cured product layer is defined as t2, t1 exceeds 3.5 μm 30. It is 0 μm or less and satisfies the relationship of t1 <t2.

1 and 2 are cross-sectional views showing an embodiment of the decorative material 100 of the present invention.
The decorative material 100 of FIGS. 1 and 2 has a first region R1 and a second region R2 in a plane. Further, the decorative material 100 of FIGS. 1 and 2 has a first cured product layer 32 having a releasable surface on the base material 10 at a portion corresponding to the first region R1. The decorative material 100 of FIG. 2 has a permeation prevention layer 31 between the base material 10 and the first cured product layer 32.
In FIGS. 1 and 2, t1 indicates the thickness of the first cured product layer 32 having releasability, and t2 indicates the thickness of the second cured product layer 22. The decorative material 100 of FIGS. 1 and 2 satisfies the relationship of t1 <t2. Further, in FIG. 2, t0 indicates the thickness of the permeation prevention layer 31.
Further, the decorative material 100 of FIGS. 1 and 2 has a first decorative layer 33 between the base material 10 and the first cured product layer 32 at a portion corresponding to the first region R1. Further, the decorative material 100 of FIGS. 1 and 2 has a second decorative layer 23 between the base material 10 and the second cured product layer 22 at a portion corresponding to the second region R2.

In the present specification, the term "flat surface" refers to the surface on the side having the permeation prevention layer based on the base material of the decorative material of the present invention (the decorative material of FIG. 1 is visually recognized from the permeation prevention layer side with reference to the base material). It means (in the xy plane). Further, in the present specification, "planar view" means that the decorative material of the present invention is viewed vertically from the side having the permeation prevention layer with reference to the base material.

<Base material>
The base material is selected from a paper base material and a fiber base material, and a paper base material is preferable.
By impregnating the paper base material and the fiber base material with a curable resin, excellent mechanical properties and the like can be imparted, and by extension, the pencil hardness of the surface of the decorative material is increased, and the surface of the decorative material is easily scratched. It is preferable in that it can be done.

Examples of the paper base material include kraft paper, titanium paper, linter paper, resin impregnated paper, thin paper and Japanese paper.
The fiber base material is composed of a fiber base material composed of inorganic fibers such as glass fiber, alumina fiber, silica fiber, and carbon fiber, and organic fiber of various synthetic resins such as polyester resin, acrylic resin, polyethylene resin, and polypropylene resin. Examples thereof include a fiber base material to be used, and a base material such as a composite thereof. Further, the fiber base material may be a non-woven fabric or a woven fabric.

The thickness of the base material is not particularly limited and may be appropriately selected according to the desired performance, and is usually about 10 to 150 μm, preferably 20 to 120 μm, more preferably 20 to 120 μm from the viewpoint of ensuring mechanical physical characteristics and handleability. It is 30 to 100 μm. When a paper base material is used as the base material, the basis weight thereof is usually ^{about 20 to 150 g / m 2} , preferably 30 to 100 g / m ² , from the same viewpoint.

The base material is preferably impregnated with a curable resin. With such a configuration, the mechanical strength of the decorative material can be improved, and thus the pencil hardness of the surface of the decorative material can be increased, and the surface of the decorative material can be easily scratched.
As the curable resin, a curable resin such as a thermosetting resin or an ionizing radiation curable resin can be used, and the thermosetting resin is preferable from the viewpoint of handleability.

As the curable resin to be impregnated in the base material, a melamine resin, a urea resin, a melamine-urea resin, a guanamine resin, and a sulfonamide resin are used from the viewpoint of further enhancing the texture of the decorative material and improving the mechanical strength of the decorative material. , Dialyl phthalate resin, polyester resin, phenol resin, epoxy resin, aminoalkyd resin, silicon resin, polysiloxane resin and the like are preferable, and among them, melamine resin, urea resin, melamine-urea resin, phenol resin, guanamine resin and sulfonamide resin and the like. The thermosetting resin of the above is preferable. Further, among the thermosetting resins, melamine resin, melamine-urea resin and phenol resin are preferable, and melamine resin is particularly preferable.

Examples of means for impregnating the base material with the thermosetting resin include means for preparing a composition of an uncured thermosetting resin and impregnating the base material with the composition (for example, a step described later). (3).).
The impregnated composition becomes a cured product of a thermosetting resin by heating at an appropriate time point and curing it by a reaction such as a crosslinking reaction or a polymerization reaction (for example, step (5) described later).

In the present specification, the term "thermosetting resin" simply means a cured product obtained by curing an uncured product of a thermosetting resin. The same applies to other curable resins such as ionizing radiation curable resins.
Further, in the present specification, the terms curable resin composition, thermosetting resin composition, and ionizing radiation curable resin composition mean that they are uncured unless otherwise specified.

The base material is physically prepared on one or both sides of the base material, such as an oxidation method or an unevenness method, in order to improve the interlayer adhesion with other layers constituting the decorative material and to strengthen the adhesiveness with the adherend. It may be subjected to surface treatment such as surface treatment or chemical surface treatment, or a primer layer may be formed.
Examples of the oxidation method include corona discharge treatment, chromium oxidation treatment, flame treatment, hot air treatment, ozone-ultraviolet treatment method and the like, and examples of the unevenness method include sandblasting method and solvent treatment method. These surface treatments are appropriately selected depending on the type of the base material, but in general, the corona discharge treatment method is preferably used from the viewpoints of the effect and operability of the surface treatment.

<Area>
The decorative material of the present invention has a first region R1 and a second region R2 in a plane.
When the thickness of the first cured product layer is defined as t1 and the thickness of the second cured product layer is defined as t2, the difference between t1 and t2 is the elevation of the first region R1 and the altitude of the second region R2. It is an index of altitude difference.
Therefore, by satisfying the relationship of t1 <t2, the first region R1 is visually recognized as being recessed, and the second region R2 is visually recognized as being raised, and the contrast between the two regions makes the three-dimensional appearance of the decorative material good. Can be.
When the first region has a penetration prevention layer having a thickness of t0, it is preferable to satisfy the relationship of t0 + t1 <t2 in order to improve the three-dimensional effect.

t2-t1 is preferably 2.0 μm or more and 45.0 μm or less, more preferably 5.0 μm or more and 35.0 μm or less, and further preferably 10.0 μm or more and 30.0 μm or less.
By setting t2-t1 to 0.1 μm or more, it is possible to easily improve the three-dimensional effect. Further, by setting t2-t1 to 20 μm or less, stress is suppressed from being concentrated in the second region when the surface is rubbed, partial omission of the second region is suppressed, and wear resistance is improved. Can be made easy.
When the first region has a permeation prevention layer having a thickness of t0, t2- (t0 + t1) is preferably 2.0 μm or more and 45.0 μm or less, and more preferably 5.0 μm or more and 35.0 μm or less. It is more preferably 10.0 μm or more and 30.0 μm or less.

It is preferable to calculate t0, t1 and t2 as the average value of the thicknesses at 20 points. The thickness can be calculated, for example, from a cross-sectional photograph of the decorative material. It is preferable that the 20 locations for calculating the average value are picked up so that there is no bias in the locations.

When the area of the first region R1 of the decorative material is defined as S1 and the area of the second region is defined as S2, S2 / S1 is preferably 0.5 to 20, preferably 1.0 to 10. More preferred.
By setting S2 / S1 to 0.5 or more, the high proportion of the altitude of the decorative material in the plane increases, so that the wear resistance of the decorative material can be easily improved. Further, by setting S2 / S1 to 20 or less, it is possible to easily improve the design by setting the balance of the ratio between the portion visually recognized as recessed and the portion visually recognized as rising as an appropriate range.

《First area》
The first region is a region that is recessed and visually recognized as compared with the second region.
The first region has a permeation prevention layer and a first cured product layer having a releasable surface in this order on the base material.

The surface of the first region is preferably roughened. By roughening the surface of the first region, the first region is dented and easily visible, and the three-dimensional effect can be improved.

-First cured product layer-
The surface of the first cured product layer has a releasable property. Since the surface of the first cured product layer has a releasable property, most of the second cured product layer on the first cured product layer is peeled off. The second cured product layer on the first cured product layer is preferably completely peeled off from the viewpoint of improving the three-dimensional appearance due to the surface unevenness, but the second cured product layer is completely peeled off from the first cured product layer. In many cases, it cannot be done. Therefore, a small amount of the second cured product layer may remain on the first cured product layer as long as the effect of the present invention is not impaired.
Since most of the second cured product layer on the first cured product layer is peeled off, the region having the first cured product layer forms the first region of the decorative material in principle.

The thickness t1 of the first cured product layer needs to be more than 3.5 μm and 30.0 μm or less.
By setting t1 to more than 3.5 μm, even if the thickness of the second cured product layer is increased, the second cured product layer is formed in the first region when the second cured product layer is peeled from the first region R1. Can be prevented from coagulating and breaking (see step (7) described later). That is, by setting t1 to more than 3.5 μm, the thickness of the second cured product layer can be increased, and as a result, the wear resistance of the decorative material can be easily improved.
Further, by setting t1 to 30.0 μm or less, the first cured product layer can be stably formed.
t1 is preferably 5.0 μm or more and 25.0 μm or less, and more preferably 7.0 μm or more and 20.0 μm or less.

The thickness t1 of the first cured product layer can be easily set within the above range by increasing the viscosity of the composition forming the first cured product layer or forming the permeation prevention layer.

The first cured product layer is a layer formed of a curable resin, more specifically, a layer formed of a cured product of an uncured curable resin composition.
As the curable resin, a thermosetting resin and an ionizing radiation curable resin are preferably mentioned, and an ionizing radiation curable resin is more preferable, from the viewpoint of obtaining a design property with a higher texture and better surface characteristics.

As the thermosetting resin, the same thermosetting resin that can be impregnated in the base material can be preferably exemplified.

The ionizing radiation curable resin is a resin that is crosslinked and cured by irradiating it with ionizing radiation, and has an ionizing radiation curable functional group. Here, the ionizing radiation curable functional group is a group that is crosslinked and cured by irradiation with ionizing radiation, and a functional group having an ethylenic double bond such as a (meth) acryloyl group, a vinyl group, or an allyl group is preferably mentioned. Be done. Further, ionizing radiation means an electromagnetic wave or a charged particle beam having an energy quantum capable of polymerizing or cross-linking a molecule, and usually, ultraviolet rays (UV) or electron beams (EB) are used. Electromagnetic waves such as X-rays and γ-rays, and charged particle beams such as α-rays and ion rays are also included.

Specifically, as the ionizing thermosetting resin, a polymerizable monomer or a polymerizable oligomer that has been conventionally used as an ionizing thermosetting resin can be appropriately selected and used, and the polymerizable monomer and the polymerizable oligomer can be used. Are preferably mixed and used.
When the polymerizable monomer is used alone, the crosslink density of the first cured product layer can be increased, and the second cured product layer on the first cured product layer can be easily peeled off (see step (7) described later). However, when the polymerizable monomer is used alone, the viscosity of the composition forming the first cured product layer tends to be low, which is not preferable in that the thickness of the first cured product layer is increased. On the other hand, in the case of the polymerizable oligomer alone, the viscosity of the composition forming the first cured product layer can be easily increased, but the crosslink density of the first cured product layer is difficult to increase. Therefore, using a mixture of the polymerizable monomer and the polymerizable oligomer makes it easier to adjust the crosslink density of the first cured product layer and the viscosity of the composition forming the first cured product layer within an appropriate range. preferable.
The polymerizable monomer and the polymerizable oligomer are preferably mixed so that the amount of the polymerizable oligomer is 10 to 80 parts by mass with respect to 100 parts by mass of the polymerizable monomer, more preferably 20 to 60 parts by mass, and further preferably. Is 30 to 50 parts by mass.

As the polymerizable monomer, a (meth) acrylate-based monomer having a radically polymerizable unsaturated group in the molecule is preferable, and a polyfunctional (meth) acrylate monomer is particularly preferable. Here, "(meth) acrylate" means "acrylate or methacrylate".
Examples of the polyfunctional (meth) acrylate monomer include a (meth) acrylate monomer having two or more ionizing radiation curable functional groups in the molecule and having at least a (meth) acryloyl group as the functional group. An acrylate monomer having an acryloyl group is preferable from the viewpoint of obtaining a design property with a higher texture and better surface properties.
From the viewpoint of obtaining a higher quality design and better surface properties, the number of functional groups is preferably 2 or more, more preferably 3 or more, further preferably 4 or more, and the upper limit is preferably 8 or less, more preferably. Is 6 or less. These polyfunctional (meth) acrylates may be used alone or in combination of two or more.

Examples of such polymerizable monomers include bifunctional (meth) acrylates such as ethylene glycol di (meth) acrylate, bisphenol A tetraethoxydiacrylate, bisphenol A tetrapropoxydiacrylate, and 1,6-hexanediol diacrylate; trimethylol. Propanetri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, Trifunctional or higher (meth) acrylates such as isocyanuric acid-modified tri (meth) acrylates; are preferred. Among them, dipentaerythritol such as dipentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, and dipentaerythritol hexa (meth) acrylate from the viewpoint of obtaining higher texture design and better surface characteristics. A system-polymerizable monomer is preferable, dipentaerythritol penta (meth) acrylate and dipentaerythritol hexa (meth) acrylate are more preferable, and dipentaerythritol penta (meth) acrylate and dipentaerythritol hexa (meth) acrylate are used in combination. Is particularly preferable.

Examples of the polymerizable oligomer include a (meth) acrylate oligomer having two or more ionizing radiation curable functional groups in the molecule and having at least a (meth) acryloyl group as the functional group. For example, urethane (meth) acrylate oligomer, epoxy (meth) acrylate oligomer, polyester (meth) acrylate oligomer, polyether (meth) acrylate oligomer, polycarbonate (meth) acrylate oligomer, acrylic (meth) acrylate oligomer, polycaprolactone urethane (meth). ) Acrylate oligomer, polycaprolactone diol urethane (meth) acrylate and the like.

From the viewpoint of obtaining a higher quality design and better surface properties, the number of functional groups of these polymerizable oligomers is preferably 2 or more, more preferably 3 or more, and the upper limit is preferably 8 or less. It is preferably 6 or less.

The weight average molecular weight of the polymerizable oligomer is preferably 700 or more, more preferably 1,000 or more, and the upper limit is preferably 80,000 or less, more preferably 50,000 or less. As used herein, the weight average molecular weight is the average molecular weight measured by GPC analysis and converted to standard polystyrene.

The first cured product layer preferably further contains a release agent or an inorganic filler in addition to the curable resin, and more preferably contains a release agent and an inorganic filler.

Examples of the release agent include a fluorine-based release agent, a silicone-based release agent, and the like, and a silicone-based release agent is preferable from the viewpoint of obtaining a design with a higher texture.
Examples of the silicone-based mold release agent include those having a polysiloxane structure as a basic structure, and among them, modified silicone oil in which an organic group is introduced into at least one of the side chain and the terminal thereof is preferable, and organic groups are present at both ends. The introduced modified silicone oil is more preferred. As the organic group, from the viewpoint of obtaining a design with a higher texture, a reactive functional group such as a (meth) acrylic group, an amino group, an epoxy group, a mercapto group, a carbinol group, a phenol group or a carboxyl group, or a polyether group , Non-reactive group functional groups such as aralkyl group, fluoroalkyl group, alkyl group, fatty acid amide group and phenyl group are preferably mentioned. Of these, a reactive functional group is preferable, and a (meth) acrylic group is particularly preferable, that is, a (meth) acrylic-modified silicone oil is particularly preferable. Further, these organic groups may have substituents such as a nitrogen atom, a sulfur atom, a hydroxyl group and an alkyl group.

Since the first cured product layer contains a release agent, it can be peeled off even if another resin is laminated on the surface of the releasable ink decorative layer (the surface of the first cured product layer), while the second region Since other resins are adhered and not peeled off, it is possible to easily give an elevation difference between the first region and the second region.

The content of the release agent is preferably 0.1 to 5 parts by mass, more preferably 0.5 to 3 parts by mass, still more preferably, with respect to 100 parts by mass of the curable resin forming the first cured product layer. It is 1 to 2 parts by mass. When the content of the release agent is within the above range, the effect of adding the release agent can be efficiently obtained.

The first cured product layer preferably contains an inorganic filler. When the first cured product layer contains an inorganic filler, the surface of the first region can be roughened, and the visual three-dimensional appearance of the decorative material can be easily improved. Further, since the first cured product layer contains a predetermined amount of the inorganic filler (≈ the composition forming the first cured product layer contains the inorganic filler), the viscosity of the composition forming the first cured product layer is increased. , The thickness of the first cured product layer can be easily increased.

Examples of the inorganic filler include oxides such as aluminum oxide, magnesium oxide, silica, calcium oxide, titanium oxide, zinc oxide and zirconia oxide; hydroxides such as aluminum hydroxide, magnesium hydroxide and calcium hydroxide; magnesium carbonate and carbon dioxide. Carbonates such as calcium; sulfates such as calcium sulfate and barium sulfate; particles made of inorganic materials such as silicates such as magnesium silicate, aluminum silicate, calcium silicate and aluminosilicate. Of these, oxides such as aluminum oxide, magnesium oxide, silica, calcium oxide, titanium oxide and zinc oxide are preferable, and silica is particularly preferable.

The average particle size of the inorganic filler is preferably 0.3 to 10 μm, more preferably 0.5 to 7 μm, still more preferably 1 to 5 μm, and even more preferably, from the viewpoint of facilitating Ra1 in the range described later. Is 2-4 μm. From the viewpoint of increasing the viscosity of the composition forming the first cured product layer, the average particle size of the inorganic filler is preferably 5 μm or less, and more preferably 4 μm or less.
In the present specification, the average particle size of the filler is a value measured by a laser diffraction / scattering method.

The content of the inorganic filler is preferably more than 20 parts by mass and 40 parts by mass or less, more preferably 23 to 35 parts by mass, still more preferably, with respect to 100 parts by mass of the curable resin forming the first cured product layer. It is 25 to 30 parts by mass.
By setting the content of the inorganic filler to more than 20 parts by mass, the viscosity of the composition forming the first cured product layer can be increased, and the thickness of the first cured product layer can be easily increased. Further, by setting the content of the inorganic filler to 40 parts by mass or less, it is possible to suppress a decrease in the coating film strength of the first cured product layer. Further, when the content of the inorganic filler is within the above range, Ra1 can be easily set to the range described later.

-First decorative layer-
The decorative material of the present invention preferably has a first decorative layer at least in a part between the base material and the first cured product layer in a portion corresponding to the first region.

The first decorative layer may be formed in an arbitrary pattern in the first region. The arbitrary pattern depends on the design to be imparted to the entire decorative material.
For example, when the design to be applied to the entire decorative material is a wood pattern, the first decorative layer preferably forms one or more patterns selected from conduits, autumn materials and knots. In other words, the first region preferably forms one or more patterns selected from wood conduits, autumn wood and knots. A duct is a cylindrical cell that serves as a passage for water, and the arrangement of minute conduits makes it appear to the human eye that a dark pattern is formed along the arrangement. Autumn wood is a dark-colored part with narrow eyes that is formed from summer to autumn. The part with a large mesh width made from spring to summer is called spring wood, and the annual rings of wood are formed by alternately repeating spring wood and autumn wood. A node is a trace of a branch incorporated into the trunk, has a shape close to a circle or an ellipse, and has a darker color than the surrounding tissue.
Further, when the design given to the entire decorative material is a stone pattern such as travertine, it is preferable that the first decorative layer has a concave pattern. In other words, the first region preferably forms a stone recessed pattern.
Further, when the design to be applied to the entire decorative material is a tile pattern or a brick pattern, it is preferable that the first decorative layer is a joint pattern. In other words, the first region preferably forms a tile or brick joint pattern.
By making the design given by the first decorative layer as described above, the first region is dented and easily visible, and the visual three-dimensional effect can be improved.

The first decorative layer can be formed, for example, by printing with an ink for forming the first decorative layer containing a colorant and a binder resin.

Examples of the colorant for the first decorative layer include carbon black (black), iron black, titanium white, antimony white, yellow lead, titanium yellow, valve handle, cadmium red, ultramarine blue, cobalt blue and other inorganic pigments, and quinacridone red. , Isoindolinone yellow, organic pigments such as phthalocyanine blue, dyes and the like. The colorant of the first decorative layer preferably does not contain a bright pigment.
The binder resin of the first decorative layer is not particularly limited. For example, acrylic resin, styrene resin, polyester resin, urethane resin, chlorinated polyolefin resin, vinyl chloride-vinyl acetate copolymer resin, polyvinyl butyral. Examples thereof include resins, alkyd resins, petroleum resins, ketone resins, epoxy resins, melamine resins, fluorine resins, silicone resins, fibrous derivatives, rubber resins and the like.

The thickness of the first decorative layer can be appropriately adjusted in the range of about 0.1 to 20 μm in consideration of the desired design.

-Penetration prevention layer-
The decorative material of the present invention may have a permeation prevention layer between the base material and the first cured product layer at a portion corresponding to the first region. When the decorative material has a first decorative layer, the permeation prevention layer is preferably arranged between the first decorative layer and the first cured product layer.
By having a permeation prevention layer between the base material and the first cured product layer, the composition constituting the first cured product layer is suppressed from penetrating into the base material side, and the thickness of the first cured product layer is increased. The thickness can be easily increased, and the thickness of the second cured product layer can be easily increased, so that the abrasion resistance of the decorative material can be easily improved.

It is important that the permeation prevention layer is provided on a part of the base material, not all on the base material. This is because when the permeation prevention layer is formed on the entire base material, it becomes difficult for the curable resin to impregnate the base material. Therefore, when the total area of the permeation prevention layer when the decorative material is viewed in a plan view is 100, the area of the permeation prevention layer existing in the first region is preferably 90 or more, and is 95 or more. Is more preferable, 97 or more is further preferable, and 99 or more is even more preferable. In other words, it is preferable that the permeation prevention layer is substantially not present in a portion other than the first region in the plane of the decorative material.
Further, in the plane of the decorative material, the permeation prevention layer is preferably formed in synchronization with the pattern of the first cured product layer. For example, when the total area of the permeation prevention layer when the decorative material is viewed in a plan view is 100, the area of the permeation prevention layer synchronized with the first cured product layer is preferably 90 or more, and is 95 or more. Is more preferable, 97 or more is further preferable, and 99 or more is even more preferable.

The permeation prevention layer preferably contains a curable resin. In other words, the permeation prevention layer preferably contains a cured product of an uncured curable resin composition.
The content of the curable resin is preferably 50% by mass or more, more preferably 70% by mass or more, and further preferably 90% by mass or more of the total solid content constituting the permeation prevention layer. It is preferably 99% by mass or more, and even more preferably 99% by mass or more.
Since the permeation prevention layer contains the curable resin, the sealing effect of the first cured product layer by the permeation prevention layer can be improved.

Examples of the curable resin of the permeation prevention layer include a thermosetting resin and an ionizing radiation curable resin, and an ionizing radiation curable resin is more preferable.

As the thermosetting resin, the same ones as those exemplified as the thermosetting resin that can be impregnated in the base material can be preferably exemplified.
As the ionizing radiation curable resin, the same ones as those exemplified as the ionizing radiation curable resin of the first cured product layer can be preferably exemplified. The ionizing radiation curable resin of the first cured product layer is preferably a mixture of a polymerizable monomer and a polymerizable oligomer, whereas the ionizing radiation curable resin of the permeation prevention layer is polymerizable. It is preferable that the amount of the oligomer compounded is small, and it is more preferable that only the polymerizable monomer is used. By increasing the amount of the polymerizable monomer, the crosslink density of the permeation prevention layer can be increased, and it can be easily suppressed that the composition constituting the first cured product layer permeates into the base material side.

The permeation prevention layer preferably contains substantially no release agent from the viewpoint of facilitating the formation of the first cured product layer. The fact that the release agent is substantially not contained means that the content of the release agent is less than 0.1% by mass of the total solid content of the permeation prevention layer, preferably 0.01% by mass or less. Yes, more preferably 0% by mass (does not contain a release agent).

The thickness t0 of the permeation prevention layer is preferably 0.1 to 10.0 μm, more preferably 0.5 to 5.0 μm.
By setting t0 to 0.1 μm or more, it is possible to easily suppress the penetration of the uncured curable resin composition contained in the ink for forming the first cured product layer into the substrate side. Further, by setting t0 to 10 μm or less, the permeation prevention layer can be stably formed without affecting other regions.

-Surface shape-
The arithmetic mean roughness Ra of JIS B0601: 1994 at a cutoff value of 0.8 mm on the surface of the first region is preferably 1.0 to 5.0 μm, more preferably 1.0 to 3.0 μm. preferable.
By setting Ra of the first region to 1.0 μm or more, the first region can be recessed to make it easier to see. Further, by setting Ra of the first region to 5.0 μm or less, it is possible to suppress the appearance of the first region as whitish and facilitate the improvement of the design.

Ra in the first region can be adjusted by, for example, roughening the base material, roughening the layer formed on the base material (such as the first cured product layer described later), and the like.

《Second area》
The second region is a region that is visually recognized higher than the first region.
The second region has a second cured product layer on the substrate.

-Second cured product layer-
The second cured product layer is a layer formed of a curable resin, more specifically, a layer formed of a cured product of an uncured curable resin composition.

As the curable resin of the second cured product layer, a thermosetting resin and an ionizing radiation curable resin are preferably mentioned, and a thermosetting resin is more preferable, from the viewpoint of obtaining a design property with a higher texture. These curable resins may be used alone or in combination of two or more, for example, a thermosetting resin and an ionizing radiation curable resin may be used in combination, or these curable resins and thermoplastics may be used in combination. It may be used in combination with a resin.
As the thermosetting resin, the same ones as those exemplified as the thermosetting resin that can be impregnated in the base material can be preferably exemplified, and the above-mentioned various thermosetting resins are preferable, and melamine resin is particularly preferable. It is the same. By using such a curable resin, a design property with a higher texture can be obtained, the adhesion to the base material is improved, and more excellent mechanical strength can be obtained. Examples of the ionizing radiation curable resin include those similar to those exemplified in the permeation prevention layer.
When the curable resin and the thermoplastic resin are used in combination, the content of the curable resin with respect to the total of these resins is usually about 50% by mass or more and less than 100% by mass, preferably 60% by mass or more and 90% by mass or less. Is.

The second cured product layer preferably does not contain particles from the viewpoint of reducing diffusion.

The thickness t2 of the second cured product layer is preferably 5.0 μm or more and 100 μm or less, more preferably 10.0 μm or more and 60.0 μm or less, and more preferably 25.0 μm or more and 50.0 μm or less. preferable.
By setting t2 to 5.0 μm or more, it is possible to easily improve the wear resistance of the decorative material. Further, by setting t2 to 100 μm or less, a stable design of the first cured product layer can be expressed.

-Second decorative layer-
The decorative material of the present invention preferably has a second decorative layer at least in a part between the base material and the second cured product layer in a portion corresponding to the second region.

The second decorative layer can be formed, for example, by printing with an ink for forming a second decorative layer containing a colorant and a binder resin.
Examples of the colorant and binder resin of the second decorative layer include those exemplified by the colorant and binder resin of the first decorative layer described later.

The second decorative layer may be formed on the base material in an arbitrary pattern, for example.
The arbitrary pattern depends on the design to be imparted. For example, the arbitrary pattern is preferably a wood surface pattern (a portion other than the conduit groove pattern and / or the knot pattern) when a wood grain pattern is given to the entire decorative material, and the entire decorative material is made of stone such as travertin. When a pattern is given, it is preferable to use a pattern other than the recessed portion, and when giving a tile pattern or a brick pattern to the entire decorative material, it is preferable to use a tile portion or a brick portion.

The thickness of the second decorative layer can be appropriately adjusted in the range of about 0.1 to 20 μm in consideration of the desired design.

-Surface shape-
The arithmetic mean roughness Ra of JIS B0601: 1994 at a cutoff value of 0.8 mm on the surface of the second region is preferably 2.0 μm or less, and more preferably 0.5 to 1.5 μm.

<Reinforcing layer>
In order to reinforce the decorative material, the decorative material of the present invention preferably has a reinforcing layer on the surface of the base material opposite to the side having the first cured product layer.
In particular, when a fiber base material or a paper base material impregnated with a thermosetting resin is used as the base material, a thermosetting resin decorative board having more excellent mechanical properties can be obtained by combining the reinforcing layers.

Examples of the reinforcing layer include a thermosetting resin impregnated sheet.
The types of the fiber base material and the paper base material used in the thermosetting resin impregnated sheet are not particularly limited as long as they are exemplified as the base material fiber base material and the paper base material, and the basis weight is preferably 100 to 100. It is 300 g / m ² , more preferably 150 to 250 g / m ² . Further, the thermosetting resin can be used without particular limitation as long as it can be impregnated in the base material in the state of the thermosetting resin composition, and a phenol resin is preferable. That is, a phenol resin impregnated paper is preferable as the reinforcing layer.
The phenol resin impregnated paper is produced by, for example, impregnating ^{kraft paper having a basis weight of 150 to 250 g / m 2} with phenol resin so as to have an impregnation rate of about 20 to 60% and drying at about 100 to 140 ° C. Phenol formaldehyde is preferably used.

<Primer layer>
In the decorative material of the present invention, a primer layer can be provided between each layer in order to improve the adhesion of each layer.
Examples of the resin material forming the primer layer include urethane resin, polyester resin, acrylic resin, acrylic urethane resin, vinyl chloride-vinyl acetate copolymer resin and the like. The thickness of the primer layer is usually about 0.1 to 15 μm, preferably 1 to 10 μm from the viewpoint of efficiently obtaining excellent adhesion.

<Adhesion material>
The decorative material of the present invention may be one in which an adherend is laminated and integrated on the back surface of the base material (the side of the base material opposite to the side having the first cured product layer).

The adherend is, for example, a single wood board, a wood plywood board, a particle board, an MDF (medium density fiber board), a wood board such as an laminated material; a plaster board such as a plaster board or a plaster slag board; a calcium silicate board, an asbestos slate board. , Lightweight foamed concrete board, hollow extruded cement board, etc.; fiber cement board, pulp cement board, asbestos cement board, wood piece cement board, etc.; Metal plates such as steel plates, polyvinyl chloride sol coated steel plates, aluminum plates and copper plates; thermoplastic resin plates such as polyolefin resin plates, acrylic resin plates, ABS plates and polycarbonate plates; phenol resin plates, urea resin plates and unsaturated polyester resin plates , Thermo-curable resin plate such as polyurethane resin plate, epoxy resin plate, melamine resin plate; resin such as phenol resin, urea resin, unsaturated polyester resin, polyurethane resin, epoxy resin, melamine resin, diallyl phthalate resin, glass fiber Examples thereof include a so-called FRP plate obtained by impregnating and curing a non-woven fabric, cloth, paper, or other various fibrous base materials to form a composite. You may.

The method of laminating the base material and various adherends is not particularly limited, and for example, a method of adhering a sheet to the adherend with an adhesive or the like can be adopted. The adhesive may be appropriately selected from known adhesives according to the type of adherend and the like. For example, polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ionomer and the like, as well as butadiene-acrylic nitrile rubber, neoprene rubber, natural rubber and the like can be mentioned.

<Use>
The decorative material of the present invention is used, for example, as a top plate for various counters and desks; furniture; cabinets for kitchen products; residential building materials such as doors; and the like. Among these, the members used in the parts including the horizontal surface such as the top plate used for the counter and the desk are required to have a visual three-dimensional effect as compared with the members used in the vertical surface. Since it is rubbed by various objects such as clothes, cleaning supplies, and watches, abrasion resistance is required, and it is preferable in that the effect of the decorative board of the present invention can be easily exhibited.

[Manufacturing method of decorative material]
The decorative material of the present invention can be produced, for example, by the following steps (1) to (7).
(1) Step of preparing a base material.
(2) A step of obtaining a laminated body A formed by forming a first cured product layer having a releasable surface at a portion forming a first region on the base material.
(3) A laminated body obtained by impregnating the curable resin composition with the laminated body A and forming an uncured curable resin composition layer on the entire surface of the laminated body A on the side having the first cured product layer. The process of obtaining B.
(4) A step of obtaining a laminate C, which comprises arranging a release film on the uncured curable resin composition layer side of the laminate B.
(5) A step of heat-pressing the laminated body C with both sides sandwiched between mirror plates to form a second cured product layer obtained by curing the uncured curable resin composition layer.
(6) A step of taking out the laminated body C from between the mirror surface plates.
(7) When the release film is peeled off from the laminate C, the second cured product layer on the first cured product layer of the second cured product layer is removed together with the release film, and the concave first. A step of forming a region and forming a convex second region in which a second cured product layer formed in a portion having no first region forming layer remains.

Step (1) is a step of preparing the base material 10.

The step (2) is a step of obtaining a laminated body A (71) formed by forming a first cured product layer 32 having a releasable surface at a portion forming the first region on the base material 10 (step (2)). FIG. 4). The curable resin composition used for forming the first cured product layer is preferably cured at this stage.
The portion where the first cured product layer 32 is formed on the base material 10 is the portion corresponding to the first region R1 of the decorative material obtained by the production method of the present invention.

When the decorative material 100 has the first decorative layer 33 and / or the second decorative layer 23, the first decorative layer 33 and / or the second decorative layer 23 is formed between the steps (1) and (2). It is preferable to have a step of performing (FIG. 3).

Further, when the decorative material 100 has the permeation prevention layer 31, it is preferable to have a step of forming the permeation prevention layer 31 between the step (1) and the step (2). The curable resin composition used for forming the permeation prevention layer 31 is preferably cured at this stage.

In the step (3), the laminated body A is impregnated with the curable resin composition, and the uncured curable resin composition layer 22a is formed on the entire surface of the laminated body A on the side having the first cured product layer 32. This is a step of obtaining the laminated body B (72) (FIG. 5).
During the step (3), the base material 10 can be impregnated with the curable resin composition.

The step (4) is a step of obtaining a laminate C (73) formed by arranging the release film 80 on the uncured curable resin composition layer 22a side of the laminate B (FIG. 6).
The release film 80 is a second cured product layer on the first cured product layer 32 having a releasable surface among the second cured product layers obtained by curing the uncured curable resin composition layer 22a in the step (7) described later. (Ii) It has a role of removing the cured product layer. That is, the adhesive force between the release film 80 and the second cured product layer is A1, the second cured product layer and the layer located on the base material 10 side of the cured product layer (in the case of the first region R1, the first cured product). In the case of the layer 32 and the second region R2, when the adhesive force with the second decorative layer 23 or the base material 10) is A2, A1> A2 in the first region R1 and A1 <A2 in the second region R2. The material of the release film 80 is not particularly limited as long as the relationship is satisfied.

The release film 80 is a single layer of a sheet of various resins such as polyester resin such as polyethylene terephthalate and polybutylene terephthalate; polyolefin resin such as polyethylene and polypropylene; acrylic resin; or a resin layer formed on these resin sheets. Things can be mentioned.

When the decorative material 100 has the reinforcing layer 60, it is preferable to arrange the reinforcing layer 60 on the base material 10 side of the laminated body B in the step (4).

In the step (5), the laminated body C (73) is hot-pressed with both sides of the laminated body C (73) sandwiched between mirror plates to cure the uncured curable resin composition layer 22a. This is a step of forming the bi-cured product layer 22.
During the step (5), the curable resin composition impregnated in the base material 10 can also be cured.

The conditions of the hot press may be appropriately adjusted according to the type of thermosetting resin used, and are not particularly limited, but are usually under temperature conditions of 100 to 200 ° C., pressure is 0.1 to 9.8 MPa, and time. Is 10 seconds to 120 minutes.

The step (6) is a step of taking out the laminated body C from between the mirror face plates.
In the step (7), when the release film 80 is peeled off from the laminated body C, the second cured product layer on the first cured product layer 32 of the second cured product layer is removed together with the release film 80, and the shape is concave. This is a step of forming the first region R1 and at the same time forming a convex second region R2 in which the second cured product layer 22 formed in a portion having no first region forming layer 30 remains (FIG.). 1).
In the method for producing a decorative material of the present invention, since the thickness of the first cured product layer is thick, even if the thickness of the second cured product layer is increased, the second on the first region R1 in the step (7). The cured product layer can be peeled off cleanly without coagulation failure.

Next, the present invention will be described in more detail by way of examples, but the present invention is not limited to this example.

1. 1. Evaluation 1-1. Abrasion resistance Decorative materials obtained in Examples and Comparative Examples using the trade name "Rotary Ablation Tester" manufactured by Toyo Seiki Seisakusho Co., Ltd. in accordance with "6.2 Abrasion Resistance B Method" of JIS K6902: 2008. The wear resistance of was evaluated. As the polishing material, a polishing paper "Product No .: S-42, 3M company" conforming to JIS R6252 was used. Table 1 shows the number of rotations of the turntable when 50% of the printed pattern of the decorative material is erased.

1-2. Peelability of the second cured product layer The peelability of the second cured product layer was visually evaluated for the decorative materials obtained in Examples and Comparative Examples. "A" is the one in which the second cured product layer does not remain on the first region, and when the release film is peeled off, the second cured product layer coagulates and breaks on the first region, or the second cured product The layer in which the second cured product layer remained in a part on the first region with almost no peeling was designated as "C". The results are shown in Table 1.

1-3. Three-dimensional effect The cosmetic materials obtained in Examples and Comparative Examples were visually evaluated by any 20 adults under the illumination of a fluorescent lamp to see if they had a three-dimensional effect. The results are shown in Table 1.
A: More than 18 people answered that they had a highly three-dimensional design.
B: 15 to 17 people answered that they had a highly three-dimensional design.
C: The number of people who answered that they had a high three-dimensional design was 14 or less.

2. Preparation of decorative material [Example 1]
Printing ink (manufactured by DIC Graphics Co., Ltd.) on a base material (titanium paper base paper for building materials, trade name "PM-67P" manufactured by KJ Special Paper Co., Ltd., basis weight: 80 g / m ^{2, thickness: 100 μm)} Using "Ode SPTI"), a first decorative layer (conduit portion of wood grain) and a second decorative layer (bark portion of wood grain) having a thickness of 3 μm were formed by gravure printing.
Next, the curable resin composition 1 for forming the first cured product layer described below is printed on the first decorative layer and irradiated with an electron beam (pressurized voltage: 165 KeV, 3Mrad (30 kGy)) to cure the first decorative layer. A laminate A having a first cured product layer having a thickness t1 of 15.0 μm was obtained.
Next, the laminate A was impregnated with the curable resin composition for forming the second cured product layer below, and dried to obtain a laminate B (the amount of the cured resin composition at the time of drying was 80 g / m ^2). Impregnated so that
Next, the following release film is laminated on the surface of the laminate B opposite to the base material (the surface on the side having the uncured second cured product layer), and on the surface of the laminate B on the base material side. , Reinforcing layer (Craft paper impregnated with a liquid uncured resin composition made ^{of phenol resin and obtained by impregnating it with a phenol resin impregnated core paper having a basis weight of 245 g / m 2} (Ota Core manufactured by Ota Sangyo Co., Ltd.) 3 A laminated body C formed by laminating the sheets) was obtained.
Next, both sides of the laminate C are sandwiched between mirror plates (a mirror plate is placed on the reinforcing layer side and an embossed plate is placed on the release film side), and a hot press is used to form a molding temperature: 150 ° C. and a molding pressure: 100 kg / cm ^2. For 10 minutes, heat and pressure molding was performed. After molding, the laminate C was taken out from between the two mirror plates, and the release film was peeled from the laminate C to obtain the decorative plate of Example 1.
When the release film was peeled off from the laminate C, the second cured product layer on the first cured product layer was removed together with the release film, and a concave first region was formed. .. Further, a convex second region was formed in which the second cured product layer remained at a portion having no first cured product layer.
The decorative material of Example 1 had t1 of 15.0 μm and t2 of 30.0 μm. The ratio (S2 / S1) of the area S1 of the first region to the area S2 of the second region was about 3.0.

<Curable resin composition 1 for forming the first cured product layer>
Each of the following components was stirred with a process homogenizer (manufactured by SMT Co., Ltd., "PH91") at a rotation speed of 2000 rpm for 1 hour to obtain a resin composition.
-Ionizing radiation curable monomer: 37 parts by mass (mixture of dipentaerythritol pentaacrylate (five functional groups) and dipentaerythritol hexaacrylate (six functional groups), trade name "Aronix M400" manufactured by Toa Synthetic Co., Ltd.)
-Ionizing radiation curable oligomer: 15 parts by mass (trade name "Beamset 575" manufactured by Arakawa Chemical Industry Co., Ltd., number of functional groups 3 to 6)
-Silicone-based mold release agent: 0.6 parts by mass (both-terminal methacryloyloxyalkyl-modified organopolysiloxane, trade name "X-22-164B" manufactured by Shin-Etsu Chemical Co., Ltd.)
-Silane coupling treated silica: 15 parts by mass (average particle size 3.0 μm)
-Methyl ethyl ketone: 48 parts by mass

<Curable resin composition for forming a second cured product layer>
・ Melamine formaldehyde resin: 60 parts by mass ・ Water: 35 parts by mass ・ Isopropyl alcohol: 5 parts by mass

<Making a release film>
The following ionizing radiation curable resin composition is applied to the easy-adhesion surface of a 50 μm-thick polyethylene terephthalate film (trade name “Cosmoshine A4610” manufactured by Toyo Boseki Co., Ltd.), and an electron beam (pressurized voltage: 165 KeV, 5Mrad) is applied. (50 kGy)) was irradiated and cured to form a cured product layer having a thickness of 5 μm, and a release film was obtained.
<< Ionizing radiation curable resin composition >>
-Ionizing radiation curable resin: 100 parts by mass (ethylene bottom oxide modified product of trimethylolpropane triacrylate, trade name "Aronix M350" manufactured by Toa Synthetic Co., Ltd.)
-Silicone-based mold release agent: 2 parts by mass (both-terminal methacryloyloxyalkyl-modified organopolysiloxane, trade name "X-22-164B" manufactured by Shin-Etsu Chemical Co., Ltd.)
-Silica particles: 8 parts by mass (trade name "Silicia 450" manufactured by Fuji Silysia Chemical Ltd., average particle size: 5.2 μm)
-Ethyl acetate: 50 parts by mass

[Examples 2 to 4]
The decorative materials of Examples 2 to 4 were obtained in the same manner as in Example 1 except that t1 and t2 were changed to the values shown in Table 1.

[Comparative Example 1]
Comparative Example 1 in the same manner as in Example 1 except that the curable resin composition 1 for forming the first cured product layer was changed to the curable resin composition 2 for forming the first cured product layer below. I got a decorative material. The reason why t1 of the decorative material of Comparative Example 1 shows a value smaller than that of Example 1 is that in Comparative Example 1, the viscosity of the material for forming the first cured product layer was low, and the first cured product layer could not be formed thickly. is there.

<Curable resin composition 2 for forming the first cured product layer>
Each of the following components was stirred with a process homogenizer (manufactured by SMT Co., Ltd., "PH91") at a rotation speed of 2000 rpm for 1 hour to obtain a resin composition.
-Ionizing radiation curable monomer: 60 parts by mass (mixture of dipentaerythritol pentaacrylate (five functional groups) and dipentaerythritol hexaacrylate (six functional groups), trade name "Aronix M400" manufactured by Toa Synthetic Co., Ltd.)
-Silicone-based mold release agent: 0.6 parts by mass (both-terminal methacryloyloxyalkyl-modified organopolysiloxane, trade name "X-22-164B" manufactured by Shin-Etsu Chemical Co., Ltd.)
-Silane coupling treated silica: 11 parts by mass (average particle size 3.0 μm)
-Methyl ethyl ketone: 40 parts by mass

[Comparative Example 2]
The decorative material of Comparative Example 2 was obtained in the same manner as in Comparative Example 1 except that t2 was changed to the value in Table 1.

From the results in Table 1, it can be confirmed that the decorative materials of Examples 1 to 4 have a visual three-dimensional effect and are excellent in abrasion resistance. The reason why the evaluation of the three-dimensional effect of Comparative Example 1 is inferior to that of the Example is that since t1 of Comparative Example 1 is small, the second cured product layer is not well separated from the first region R1 and the second cured product layer is contained in the first region. This is because the cured product layer remains.

10: Base material 20: Second region forming layer 22: Second cured product layer 22a: Curable resin composition layer 23: Second decorative layer 30: First region forming layer 31: Penetration prevention layer 32: First cured product Layer 33: First decorative layer 60: Reinforcing layer 71: Laminated body A
72: Laminated body B
73: Laminated body C
80: Release film 100: Cosmetic material

Claims (7)

1. A decorative material having a base material selected from a paper base material and a fiber base material.
   The decorative material has a first region and a second region in a plane, and has a first region and a second region.
   The decorative material at a portion corresponding to the first region has a first cured product layer having a releasable surface on the base material.
   The decorative material in the portion corresponding to the second region has a second cured product layer on the base material.
   When the thickness of the first cured product layer is defined as t1 and the thickness of the second cured product layer is defined as t2, t1 is more than 3.5 μm and 30.0 μm or less, and the relationship of t1 <t2 is satisfied. Cosmetic material.
2. The decorative material according to claim 1, wherein the first cured product layer contains a curable resin and an inorganic filler.
3. The decorative material according to claim 2, wherein the content of the inorganic filler is more than 20 parts by mass and 40 parts by mass or less with respect to 100 parts by mass of the curable resin.
4. The decorative material in a portion corresponding to the first region has a first decorative layer at least in a part between the base material and the first cured product layer, according to any one of claims 1 to 3. The listed cosmetic material.
5. The decorative material according to any one of claims 1 to 3, wherein the decorative material in a portion corresponding to the first region has a permeation prevention layer between the base material and the first cured product layer.
6. The decorative material in a portion corresponding to the second region has a second decorative layer at least in a part between the base material and the second cured product layer, according to any one of claims 1 to 5. The listed cosmetic material.
7. The decorative material according to any one of claims 1 to 6, wherein the second cured product layer contains a melamine resin.

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