Decorative Materials

Abstract

Provided is a decorative material having high scratch resistance while suppressing defects generated when a gloss adjustment layer is stacked. According to the decorative material (1) of this embodiment, the resin component constituting the first gloss adjustment layer (5) is set as a mixture of a urethane thermosetting resin having a polyol and an isocyanate and an ionizing radiation curing resin having an acrylic group or a methacrylic group, and the urethane thermosetting resin is contained in a range of 3 parts by mass to 100 parts by mass relative to 100 parts by mass of the ionizing radiation curing resin.

Description

[0001] This application is a divisional application of the application with application number 201780078269.3, application date December 22, 2017, and invention name “Decorative Materials”. Technical Field

[0002] The present invention relates to a decorative material used for interior and exterior decoration of buildings, surface decoration of doors and windows, furniture, etc. Background Art

[0003] Conventionally, for example, decorative materials used for the surface decoration of interior and exterior decoration of buildings, doors and windows, furniture, etc., a desired pattern such as a wood grain pattern or a stone grain pattern is usually applied. In addition, decorative materials that not only express the pattern such as a wood grain pattern or a stone grain pattern in a plane, but also express the surface concave-convex feeling of natural wood or stone in a three-dimensional manner are also widely used in applications that require a high-end feel.

[0004] As a method of expressing a planar pattern together with a three-dimensional sense of concavity and convexity on the surface of a decorative material, various methods have been studied in the past, and they are used separately according to the purpose. Among them, there is a method in which the three-dimensional sense of concavity and convexity is visually expressed by using the illusion of the human eye without actually forming concavity and convexity on the surface of the decorative material, but by changing the surface gloss state (specifically, glossiness) of the part where the concavity or convexity is to be expressed. According to this method, even if there is no concavity and convexity shape in reality, the human eye can recognize the part with relatively high gloss as convexity and the part with relatively low gloss as concavity.

[0005] Specifically, for example, a transparent or translucent synthetic coating layer with low gloss is formed on the entire surface of the printed surface of a substrate printed with a suitable pattern including a concave pattern, and then a transparent or translucent synthetic coating layer with high gloss is formed on the surface of the formed synthetic coating layer except for the portion corresponding to the concave pattern. Of course, if the high-low relationship of the gloss is reversed, a decorative material with a reversed concave-convex relationship can be obtained.

[0006] According to this method, no special reagents are required, and only by preparing two kinds of coatings with different gloss, a three-dimensional sense of concavity and convexity can be easily given to any substrate. Moreover, the formation of the synthetic coating layer with different gloss can be carried out by continuing to use a common printing method such as gravure printing after forming the pattern (pattern ink layer), so no special equipment is required, the production efficiency is high, and it is easy to keep pace with the pattern. In addition, if compared with the height difference of the concavity and convexity to be expressed, the thickness of the synthetic coating layer is much thinner, so in addition to being able to reduce the amount of resin used, it is also advantageous in terms of flexibility, and it is easy to realize a decorative material with excellent adaptability to bending processing. In addition, the surface of the decorative material does not have large concavities and convexities, so it also has the advantage that pollutants will not remain in the concave part.

[0007] In view of the above series of advantages, decorative materials using this method have been widely used, but the actual situation is that this method still does not surpass the method of actually forming unevenness in terms of high-end feeling. The reason may be that, for example, if the mechanical embossing method is used, the unevenness of the conduit of natural wood, including the cross-sectional shape of the conduit, etc., can be faithfully reproduced. In contrast, in the method of using two kinds of coatings with different gloss, since there are two levels of surface gloss, there are also two levels of unevenness that can be expressed. Therefore, there is a problem that it is difficult to express the unevenness of the inclined surface with a continuously changing depth (height), such as the conduit of natural wood.

[0008] Therefore, in recent years, a decorative material has been proposed that is capable of expressing a concave-convex shape with a sloped portion such as a natural wood duct by providing a synthetic paint layer (hereinafter also referred to as a "gloss adjustment layer") that expresses a concave-convex shape with a sloped portion whose depth continuously changes (for example, refer to Patent Document 1).

[0009] Prior art literature

[0010] Patent Literature

[0011] Patent Document 1: Japanese Patent No. 3629964

[0012] Here, as a method for adjusting the gloss of the gloss adjusting layer, a gloss adjusting agent (matting agent) is generally added to a transparent resin as a binder. As the gloss adjusting agent, microparticles of inorganic materials or organic materials are mainly used, and in particular, microparticles of inorganic materials (particularly silica microparticles) have high matting performance and are widely used. By adding the gloss adjusting agent, the gloss adjusting agent gives the surface of the gloss adjusting layer a concavoconvex shape, and the concavoconvex shape scatters light to obtain a matting effect. By adjusting the type and amount of these gloss adjusting agents, the desired gloss can be arbitrarily produced.

[0013] As transparent resins for adhesives, carbamate resins using various polyols and isocyanates are often used from the viewpoints of operability, price, and the cohesive force of the resin itself. Carbamate resins are characterized in that their properties can be controlled in various ways by combining polyols and isocyanates, but polyols and isocyanates each have a relatively large molecular weight and a small number of functional groups per molecule, so generally speaking, there is a problem of difficulty in increasing the crosslinking density. Since the crosslinking density is a parameter that has a great influence on the scratch resistance, it is difficult for carbamate resins to meet high scratch resistance requirements in principle, such as the scratch resistance required for horizontal surfaces such as the top plate or shelf plate of furniture.

[0014] In addition, in the case of a gloss adjustment layer using the above-mentioned matting agent, the convex parts of the surface are selectively scraped off, or the matting agent falls off, resulting in further deterioration of the scratch resistance. Since the deterioration tendency of the scratch resistance is roughly proportional to the amount of matting agent added, it can be said that the lower the gloss of the high-design decorative material, the more difficult it is to meet the scratch resistance required for the above-mentioned level.

[0015] On the other hand, the ionizing radiation curing resin having an acrylic group or a methacrylic group as a transparent resin has a relatively low molecular weight and a large number of functional groups per molecule, so the crosslinking density is high, and it can be said that it is a resin that is easy to improve the scratch resistance. By using such an ionizing radiation curing resin as a transparent resin, a decorative material with high scratch resistance can be provided. It should be noted that since the scratch resistance mainly depends on the strength of the outermost surface of the decorative material, the ionizing radiation curing resin can be actively used only as the constituent material of the outermost surface layer.

[0016] Here, when the gloss adjustment layer is composed of two layers, the lower gloss adjustment layer covers the entire surface of the decorative material, and the upper gloss adjustment layer covers only a portion of the decorative material, since the lower gloss adjustment layer is also exposed on the surface, in order to obtain a decorative material with high scratch resistance, an ionizing radiation curable resin must be used in the transparent resin of the two gloss adjustment layers. However, since the ionizing radiation curable resin must be cured by ionizing radiation irradiation, when processing is performed using various printing machines generally used for manufacturing decorative materials, the upper gloss adjustment layer is laminated on the uncured lower gloss adjustment layer, resulting in defects such as the lower gloss adjustment layer being dissolved or scratched. Summary of the invention

[0017] Problems to be solved by the invention

[0018] In order to solve the above-mentioned problems, an object of the present invention is to provide a decorative material which suppresses defects generated when a gloss adjustment layer is laminated and has high scratch resistance.

[0019] The present inventors have conducted intensive research and found that by using a dual-curing resin component composed of a combination of a urethane-based thermosetting resin and an ionizing radiation-curing resin as the resin component of the gloss-adjusting layer on the substrate side and setting the added amount of the urethane-based thermosetting resin to an optimal range, it is possible to provide a decorative material that suppresses defects generated when the gloss-adjusting layer is stacked and at the same time has high scratch resistance.

[0020] In order to achieve the above-mentioned problems, one aspect of the present invention is a decorative material comprising: a first gloss adjustment layer provided on a substrate; and a second gloss adjustment layer partially provided on the first gloss adjustment layer and having a gloss different from that of the first gloss adjustment layer, wherein the decorative material is characterized in that: a resin component constituting the first gloss adjustment layer is a mixture of a urethane-based thermosetting resin having a polyol and an isocyanate, and an ionizing radiation-curable resin having an acrylic group or a methacrylic group, and the urethane-based thermosetting resin is contained in an amount within a range of 3 parts by mass to 100 parts by mass relative to 100 parts by mass of the ionizing radiation-curable resin.

[0021] Effects of the Invention

[0022] According to the present invention, by using a mixture of a carbamate-based thermosetting resin and an ionizing radiation-curable resin as the resin component of the first gloss-adjusting layer and setting the added amount of the carbamate-based thermosetting resin to an optimal range, it is possible to provide a decorative material that suppresses defects during lamination of the first gloss-adjusting layer and has high scratch resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] [ Figure 1 ] is a cross-sectional view of a decorative material showing an implementation method.

[0024] [ Figure 2 ] is a cross-sectional view of a decorative material showing a modified example. DETAILED DESCRIPTION

[0025] A decoration material 1 according to an embodiment of the present invention will be described with reference to the drawings.

[0026] Here, the drawings are schematic, and the relationship between thickness and plane size, the thickness ratio of each layer, etc. are different from the actual situation. In addition, the embodiments shown below illustrate the configuration for concretizing the technical idea of ​​the present invention. Regarding the technical idea of ​​the present invention, the material, shape and structure of the components are not limited to the following. The technical idea of ​​the present invention can be variously modified within the technical scope defined by the claims recorded in the claims.

[0027] (constitute)

[0028] like Figure 1 As shown in FIG. 1 , the decorative material 1 according to the present embodiment includes: a first gloss adjustment layer 5 provided on a substrate 2; and a second gloss adjustment layer 6 provided partially on the first gloss adjustment layer 5 and having a gloss different from that of the first gloss adjustment layer 5. Furthermore, it is important that: in the first and second gloss adjustment layers 5 and 6, the transparent resin used for the first gloss adjustment layer 5 is a mixture of a two-component urethane thermosetting resin composed of various polyols and isocyanates and an ionizing radiation curing resin having an acrylic group or a methacrylic group, and the mixing ratio of the thermosetting resin is within a range of 3 parts by mass or more and 100 parts by mass or less with respect to 100 parts by mass of the ionizing radiation curing resin. Thus, it is possible to provide a decorative material 1 that can suppress defects during lamination and exhibit high scratch resistance.

[0029] It should be noted that a structure may be adopted in which other layers such as the base solid ink layer 3 , the pattern ink layer 4 , and the transparent resin layer (not shown) described later are arranged between the substrate 2 and the first glossiness adjusting layer 5 .

[0030] (Base material)

[0031] The substrate 2 is not particularly limited as long as it is a material used as the base paper of the decorative material 1. For example, paper such as tissue paper, resin mixed paper, titanium paper, resin impregnated paper, flame retardant paper, inorganic paper, woven or non-woven fabrics composed of natural fibers or synthetic fibers, polyolefin resins such as homopolymer or random polypropylene resins and polyethylene resins, synthetic resin substrates such as copolymerized polyester resins, crystalline polyester resins in an amorphous state, polyethylene naphthalate resins, polybutene resins, acrylic resins, polyamide resins, polycarbonate resins, polyvinyl chloride resins, polyvinylidene chloride resins, and fluororesins, wood substrates such as veneers, veneers, plywood, laminates, particleboards, and medium-density fiberboards, inorganic substrates such as gypsum boards, cement boards, calcium silicate boards, and ceramic boards, metal substrates such as iron, copper, aluminum, and stainless steel, or materials known in the past such as their composite materials and laminates. In addition, as the shape of the substrate 2, a film, sheet, plate, or a heteromorphic molding can be used.

[0032] (Bottom solid ink layer)

[0033] The bottom solid ink layer 3 is provided between the substrate 2 and the pattern ink layer 4, and is a layer that covers the entire surface of the side of the first gloss adjustment layer 5 of the substrate 2 according to the desired design. In addition, the bottom solid ink layer 3 may be a multilayer of more than two layers according to the need for concealment, etc. In addition, in order to express the desired design, the pattern ink layer 4 may also be formed by stacking necessary multiple layers. In this way, according to the desired design (that is, the design to be expressed), the bottom solid ink layer 3 is combined with the pattern ink layer 4 to form a variety of combinations, but there is no particular limitation.

[0034] The constituent material of the bottom solid ink layer 3 is not particularly limited. For example, a printing ink or coating agent obtained by dissolving and dispersing a matrix and a colorant such as a dye or a pigment in a solvent can be used. As the matrix, various synthetic resins such as (for example) oily nitrocellulose resin, two-component urethane resin, acrylic resin, styrene resin, polyester resin, urethane resin, polyvinyl resin, alkyd resin, epoxy resin, melamine resin, fluorine resin, silicone resin, rubber resin, etc., or mixtures and copolymers thereof can be used. In addition, as a colorant, inorganic pigments such as (for example) carbon black, titanium white, zinc white, red iron oxide, chrome yellow, Prussian blue, cadmium red, or organic pigments such as azo pigments, lake pigments, anthraquinone pigments, phthalocyanine pigments, isoindolinone pigments, dioxazine pigments, or mixtures thereof can be used. As the solvent, for example, toluene, xylene, ethyl acetate, butyl acetate, methanol, ethanol, isopropyl alcohol, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, water, or a mixture thereof can be used.

[0035] In addition, in order to impart various functions to the underlying solid ink layer 3, functional additives such as extender pigments, plasticizers, dispersants, surfactants, adhesion imparting agents, adhesion aids, desiccants, curing agents, curing accelerators and curing retardants may be added.

[0036] Each of the base solid ink layer 3, the pattern ink layer 4 described later, and the first and second gloss adjustment layers 5 and 6 can be formed by various printing methods such as gravure printing, offset printing, screen printing, electrostatic printing, and inkjet printing. In addition, in order to cover the entire surface of the first gloss adjustment layer 5 side of the substrate 2, the base solid ink layer 3 and the first gloss adjustment layer 5 can also be formed by various coating methods such as roll coating, knife coating, micro gravure coating, and die coating. These printing methods and coating methods can be selected separately according to the layers to be formed, or the same method can be selected and processed together.

[0037] (Pattern ink layer)

[0038] The pattern ink layer 4 is provided between the substrate 2 and the first gloss adjustment layer 5, and is a layer for applying a pattern to the decorative material 1. As the pattern, a wood grain pattern, a stone grain pattern, a sand grain pattern, a tile pattern, a brickwork pattern, a cloth grain pattern, a leather pattern, a geometric figure, etc. can be used. The pattern ink layer 4 is formed only in the portion directly below the second gloss adjustment layer 6. In other words, the second gloss adjustment layer 6 is formed only in the portion overlapping with the pattern ink layer 4. In addition, the pattern of the pattern ink layer 4 is synchronized with the gloss of the second gloss adjustment layer 6. Thus, the design brought by the second gloss adjustment layer 6 can be added to the design brought by the pattern ink layer 4. Therefore, a decorative material 1 having a high-grade design expression close to natural wood or natural stone can be formed.

[0039] It should be noted that, although the example in which the second gloss adjustment layer 6 is formed only at the portion overlapping with the pattern ink layer 4 (i.e., only at the portion directly above the pattern ink layer 4) is shown in the present embodiment, other structures may be adopted. For example, the second gloss adjustment layer 6 only needs to be formed at the portion overlapping with the pattern ink layer 4, and in addition to the portion directly above the pattern ink layer 4, the second gloss adjustment layer 6 may also be formed at a portion other than the portion directly above. In other words, the second gloss adjustment layer 6 is formed in such a manner that at least a portion thereof overlaps with the pattern ink layer 4. In addition, the second gloss adjustment layer 6 may be formed integrally at the portion directly above the pattern ink layer 4 and at a portion of the portion other than the portion directly above the pattern ink layer 4.

[0040] The material constituting the pattern ink layer 4 is not particularly limited. For example, a printing ink or coating agent obtained by dissolving and dispersing a matrix and a colorant such as a dye or pigment in a solvent may be used, similarly to the underlying solid ink layer 3. In addition, in order to impart various functions to the pattern ink layer 4, functional additives such as a body pigment, a plasticizer, a dispersant, a surfactant, an adhesion imparting agent, an adhesion aid, a drying agent, a curing agent, a curing accelerator, and a curing retarder may be added.

[0041] (1st and 2nd gloss adjustment layers)

[0042] The first gloss adjustment layer 5 is provided on the surface of the first gloss adjustment layer 5 side of the underlying solid ink layer 3 and the pattern ink layer 4, and is a layer for adjusting the gloss state of the surface of the decorative material 1. The first gloss adjustment layer 5 is formed on the entire surface of the surface of the first gloss adjustment layer 5 side of the underlying solid ink layer 3 and the pattern ink layer 4, and covers the entire surface of the surface of the first gloss adjustment layer 5 side of the substrate 2. In addition, the second gloss adjustment layer 6 is provided on the surface of the second gloss adjustment layer 6 side of the first gloss adjustment layer 5, has a gloss different from that of the first gloss adjustment layer 5, and is a layer for adjusting the gloss state of the surface of the decorative material 1. The second gloss adjustment layer 6 is formed on a part of the surface of the second gloss adjustment layer 6 side of the first gloss adjustment layer 5. And, by the gloss difference between these first and second gloss adjustment layers 5 and 6, it is possible to express a concave-convex shape.

[0043] In addition, among the first and second gloss adjustment layers 5 and 6, a matting agent is added to the gloss adjustment layer with relatively low gloss. The amount of the matting agent added is preferably 5 parts by mass or more and 40 parts by mass or less relative to 100 parts by mass of the resin composition. It is more preferably 10 parts by mass or more and 30 parts by mass or less. When it is less than 5 parts by mass, the matting effect is insufficient, so the gloss difference with the gloss adjustment layer with relatively high gloss becomes small, and the concave-convex feeling is insufficient. In addition, when it exceeds 40 parts by mass, the resin composition becomes relatively insufficient relative to the matting agent, which will cause the matting agent to fall off and the scratch resistance caused by the falling off to decrease, which will significantly damage the durability required for the decorative material 1.

[0044] It should be noted that any matting agent may be added to the gloss adjustment layer with relatively high gloss. These need to be appropriately adjusted according to the final concavoconvex feeling or design. In addition, the matting agent and resin composition used in the first and second gloss adjustment layers 5 and 6 may be the same or different. These can be freely selected according to the concavoconvex feeling and various required properties.

[0045] As a matting agent, a commercially available known matting agent can be used. For example, microparticles composed of inorganic materials such as silica, glass, aluminum oxide, calcium carbonate, barium sulfate, and acrylic can be cited. Since the first and second gloss adjustment layers 5 and 6 need to have high transparency, it is desirable to use microparticles of silica, glass, acrylic, etc. with high transparency among the above. In particular, among silica microparticles, the matting agent with low volume density, which is not a solid spherical particle but a secondary aggregation of fine primary particles, has a high matting effect relative to the added amount. Therefore, by using such a matting agent, a gloss adjustment layer with lower gloss can be formed. As a result, the gloss difference between the first gloss adjustment layer 5 and the second gloss adjustment layer 6 can be increased, and the resulting concave-convex feeling can be increased. As a result, an excellent design expression with greater depth can be achieved.

[0046] The particle size of the matting agent can be selected to be any value. When a known matting agent is used, it is preferably 2 μm or more and 15 μm or less. It is more preferably 4 μm or more and 12 μm or less. When the particle size is less than 2 μm, the matting effect is low, so the concavoconvex feeling caused by the gloss difference cannot be fully obtained. In addition, when the particle size is greater than 15 μm, the scattering of light becomes too large, which may cause the first and second gloss adjustment layers 5 and 6 to become turbid, or the visual graininess may become larger, which may in turn damage the concavoconvex feeling caused by the gloss difference.

[0047] In addition, as the resin part (resin composition) constituting the first gloss adjustment layer 5, it is important to use a mixture of a two-component urethane thermosetting resin having various polyols and isocyanates and an ionizing radiation curing resin having an acrylic group or a methacrylic group. As the polyol, acrylic polyol, polycarbonate polyol, polyester polyol, etc. can be used. In addition, as the isocyanate, a curing agent such as a derivative, i.e., an adduct, a biuret body, and an isocyanurate body of toluene diisocyanate (TDI), xylene diisocyanate (XDI), hexamethylene diisocyanate (HMDI), diphenylmethane diisocyanate (MDI), lysine diisocyanate (LDI), isophorone diisocyanate (IPDI), methylhexane diisocyanate (HTDI), bis(isocyanatomethyl)cyclohexane (HXDI), trimethylhexamethylene diisocyanate (TMDI), etc. can be used.

[0048] In addition, as the ionizing radiation curable resin having an acrylic group or a methacrylic group, it is preferred to use a multifunctional (meth) acrylate monomer or oligomer having a number average molecular weight of 300 to 5000 and a functional group number or an average functional group number of 4 to 15. By setting it within this range, the crosslinking degree of the resin component in the gloss adjustment layer can be sufficiently increased, thereby exhibiting high scratch resistance. In addition, it is more preferred to use a multifunctional (meth) acrylate monomer having a number average molecular weight of 300 to 1500 and a functional group number or an average functional group number of 4 to 8. By setting it within this range, the viscosity of the ionizing radiation curable resin itself can be reduced, so when preparing an ink for forming a gloss adjustment layer, the solid content concentration at the same viscosity can also be increased, the stability of the ink itself can be improved, and the coating state can be improved. Examples of the polyfunctional (meth)acrylate monomer include pentaerythritol tetra(meth)acrylate (PET4A) and modified products thereof, ditrimethylolpropane tetra(meth)acrylate and modified products thereof, dipentaerythritol penta(meth)acrylate (DPPA) and modified products thereof, and dipentaerythritol hexa(meth)acrylate (DPHA) and modified products thereof.

[0049] The method for measuring the number average molecular weight of the above-mentioned ionizing radiation curing resin is not particularly limited, but preferably uses gel permeation chromatography (GPC). For the GPC measuring device, although there is no particular limitation, the filling material of the GPC column is preferably a polystyrene gel, and preferably tetrahydrofuran (THF) is used as an eluent. In addition, the standard substance of GPC uses a polystyrene polymer. It should be noted that, for the above-mentioned multifunctional (meth) acrylate monomer, since it is composed of monomers, if its structure is known, the number average molecular weight can use the value calculated by the structural formula.

[0050] In order to exert the effects of the present invention, it is important that the resin component (resin composition) constituting the first gloss adjustment layer 5 contains 3 parts by mass or more and 100 parts by mass or less of a urethane thermosetting resin relative to 100 parts by mass of the ionizing radiation curable resin. Furthermore, it is preferably set to 10 parts by mass or more and 50 parts by mass or less. In the case of less than 3 parts by mass, the proportion of the urethane thermosetting resin is too small, and thus, when the second gloss adjustment layer 6 is stacked, defects such as the first gloss adjustment layer 5 being dissolved or scratched are easily generated. In the case of more than 100 parts by mass, the proportion of the urethane thermosetting resin is too large, and thus the crosslinking degree of the resin composition is reduced, and the scratch resistance of the first gloss adjustment layer 5 is significantly reduced. Furthermore, by setting the urethane thermosetting resin to 3 parts by mass or more and 100 parts by mass or less relative to 100 parts by mass of the ionizing radiation curable resin, the urethane thermosetting resin constituting the resin component can be cured after the resin component of the first gloss adjustment layer 5 is applied and dried, and defects such as dissolution or scratching of the first gloss adjustment layer 5 can be suppressed when the second gloss adjustment layer 6 is laminated. In addition, by irradiating ionizing radiation after the decorative material 1 is manufactured, the ionizing radiation curable resin constituting the resin component can be cured, and the scratch resistance of the first gloss adjustment layer 5 can be improved. Furthermore, by setting the urethane thermosetting resin to 10 parts by mass or more and 50 parts by mass or less relative to 100 parts by mass of the ionizing radiation curable resin, it is possible to significantly achieve both the elimination of defects when the second gloss adjustment layer 6 is laminated and the scratch resistance of the first gloss adjustment layer 5.

[0051] In addition, as the resin part (resin composition) constituting the second gloss adjustment layer 6, it is important to use a resin containing an ionizing radiation curing resin having an acrylic group or a methacrylic group. In addition, when it is necessary to improve processability (prevent cracking), as the resin part (resin composition) constituting the second gloss adjustment layer 6, a mixture of a two-component urethane-based thermosetting resin having various polyols and isocyanates and an ionizing radiation curing resin having an acrylic group or a methacrylic group can be used. In this case, it is important that in the resin component (resin composition) constituting the second gloss adjustment layer 6, the urethane-based thermosetting resin is 25 parts by mass or less relative to 100 parts by mass of the ionizing radiation curing resin. In the case of exceeding 25 parts by mass, the proportion of the urethane-based thermosetting resin is too much, so the crosslinking degree of the resin composition is reduced, and the scratch resistance of the second gloss adjustment layer 6 is significantly reduced. The lower limit of the urethane-based thermosetting resin is 3 parts by mass. When the content is less than 3 parts by mass, there is no practical problem in terms of scratch resistance, but when preparing a decorative material 1 requiring processability (prevention of cracking), the above-mentioned required characteristics cannot be satisfied.

[0052] Furthermore, by setting the urethane-based thermosetting resin of the second gloss adjustment layer 6 to 25 parts by mass or less, the ionizing radiation-curable resin constituting the resin component can be sufficiently cured by irradiating the decorative material 1 after preparation, thereby improving the scratch resistance of the second gloss adjustment layer 6 .

[0053] In addition, the thickness of the first and second gloss adjustment layers 5 and 6 can be selected to any value, but as described above, since the particle size of the matting agent is preferably 2 μm or more and 15 μm or less, the thickness of the first and second gloss adjustment layers 5 and 6 is preferably set to 1 μm or more and 15 μm or less. In addition, since the first and second gloss adjustment layers 5 and 6 are the layers that become the outermost surface of the decorative material 1, they need to have surface properties such as wear resistance, scratch resistance, solvent resistance, and stain resistance required as the decorative material 1. Among them, wear resistance and scratch resistance are affected by thickness, and the greater the thickness, the more advantageous it is. Therefore, the more preferable thickness of the first and second gloss adjustment layers 5 and 6 is 2 μm or more and 12 μm or less. When it is less than 1 μm, the wear resistance and scratch resistance are significantly deteriorated, and the use as the decorative material 1 is limited. In addition, when it is greater than 15 μm, the flexibility of the first and second gloss adjustment layers 5 and 6 themselves is deteriorated, and the processability as the decorative material 1 is deteriorated.

[0054] As a method for adjusting the thickness of the first and second gloss adjustment layers 5 and 6, for example, a method of adjusting the coating amount in the above-mentioned printing method and coating method can be used. In various printing methods and coating methods, samples in which the first and second gloss adjustment layers 5 and 6 are formed on the substrate 2 and samples in which the first and second gloss adjustment layers 5 and 6 are not formed on the substrate 2 are prepared, and the coating amount can be calculated from the difference in their masses.

[0055] In addition, in order to impart various functions to the first and second gloss adjustment layers 5 and 6, functional additives such as antibacterial agents and mildewproof agents may also be added. In addition, ultraviolet absorbers and light stabilizers may also be added as needed. As ultraviolet absorbers, benzotriazole series, benzoate series, benzophenone series, and triazine series may be used. In addition, as light stabilizers, hindered amine series may be used. In addition, when anti-pollution properties or Cellotape (registered trademark) release properties are required, a release agent having a silicone skeleton may be added. In this case, the type of release agent is not particularly limited, and by using a silicone release agent having a terminal functional group reactive with the resin composition, the durability of the anti-pollution properties or Cellotape release properties can be improved.

[0056] (Transparent resin layer)

[0057] In addition, in particular, when wear resistance is required as a characteristic of the decorative material 1, a transparent resin layer (not shown) can be provided between the pattern ink layer 4 and the first gloss adjustment layer 5. As the transparent resin layer, it is preferred to use, for example, a resin composition having an olefin resin as a main component. As the olefin resin, in addition to polypropylene, polyethylene, polybutene, etc., it is also possible to use, for example, a resin composition having α-olefins (such as propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene, 1-dodecene, tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecaene, 1-eicosene, 3-methyl-1-butene, 3-methyl-1-pentene, 3-ethyl-1-pentene, 4-methyl-1-pentene, 4-methyl-1-hexene, 4,4-dimethyl-1-pentene, 4-ethyl-1-hexene, The present invention also provides a copolymerization product of ethylene or α-olefin and a monomer other than α-olefin, such as ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene-methyl methacrylate copolymer, ethylene-ethyl methacrylate copolymer, ethylene-butyl methacrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer, etc. In particular, when the surface strength is to be further improved, it is preferred to use highly crystalline polypropylene.

[0058] In addition, additives such as heat stabilizer, ultraviolet light absorber, light stabilizer, anti-blocking agent, catalyst scavenger and colorant can also be added to the transparent resin layer. These additives can be appropriately selected to use from known additives. The transparent resin layer can be formed by various lamination methods such as the method adopting hot pressing, extrusion lamination, dry lamination.

[0059] (Functions and others)

[0060] (1) As described above, in the decorative material 1 of the present embodiment, the resin component constituting the first gloss adjustment layer 5 is a mixture of a urethane thermosetting resin having a polyol and an isocyanate, and an ionizing radiation curing resin having an acrylic group or a methacrylic group, and the resin component constituting the first gloss adjustment layer 5 contains 3 parts by mass or more and 100 parts by mass or less of the urethane thermosetting resin relative to 100 parts by mass of the ionizing radiation curing resin. Therefore, the resin component of the first gloss adjustment layer 5 becomes a dual-curing resin component formed by combining a urethane thermosetting resin and an ionizing radiation curing resin, and by setting the amount of the urethane thermosetting resin added within the most appropriate range, a minimum curing state is achieved when the second gloss adjustment layer 6 is laminated, and a high degree of crosslinking unique to the ionizing radiation curing resin can be obtained after the decorative material 1 is manufactured, and high scratch resistance can be obtained. Thus, it is possible to provide a decorative material 1 that suppresses defects generated when the second gloss adjustment layer is laminated and has high scratch resistance.

[0061] (2) In addition, in the decorative material 1 of the present embodiment, the resin component constituting the second gloss adjustment layer 6 is set to a mixture of a carbamate-based thermosetting resin having a polyol and an isocyanate, and an ionizing radiation-curing resin having an acrylic group or a methacrylic group, and the resin component constituting the second gloss adjustment layer 6 contains 25 parts by mass or less of the carbamate-based thermosetting resin relative to 100 parts by mass of the ionizing radiation-curing resin. Therefore, by setting the addition amount of the carbamate-based thermosetting resin to within the most appropriate range, it is possible to provide a decorative material 1 having better scratch resistance while satisfying quality requirements related to processability.

[0062] (3) In the decorative material 1 of the present embodiment, the number average molecular weight of the ionizing radiation curable resin having an acrylic group or a methacrylic group is set to 300 to 5000. This can sufficiently increase the crosslinking degree of the resin component in the gloss adjustment layer, thereby providing a decorative material 1 having high scratch resistance.

[0063] (4) In the decorative material 1 of the present embodiment, the number average molecular weight of the ionizing radiation curable resin having an acrylic group or a methacrylic group is set to be 300 or more and 1500 or less. This can reduce the viscosity of the ionizing radiation curable resin, and when preparing the ink for forming the gloss adjustment layer, the solid content concentration at the viscosity can be increased, thereby improving the stability of the ink itself and the coating state.

[0064] (5) In addition, in the decorative material 1 of the present embodiment, the pattern of the pattern ink layer 4 is synchronized with the gloss of the second gloss adjustment layer 6. Therefore, the design property brought by the second gloss adjustment layer 6 can be added to the design property brought by the pattern ink layer 4, and the decorative material 1 having a high-grade design expression close to natural wood or the like can be formed.

[0065] (6) In addition, in the decorative material 1 of this embodiment, a matting agent composed of an inorganic material with a high matting effect is used. As a result, the gloss of the gloss adjustment layer can be significantly reduced. Therefore, the difference between the gloss of the first gloss adjustment layer 5 and the gloss of the second gloss adjustment layer 6 can be increased, and the resulting concavoconvex feeling can be increased. As a result, an excellent design expression with greater depth can be achieved.

[0066] (Variation Example)

[0067] (1) It should be noted that, in this embodiment, the second gloss adjustment layer 6 is formed at a portion overlapping with the pattern ink layer 4, and the pattern pattern of the pattern ink layer 4 is synchronized with the gloss of the second gloss adjustment layer 6. However, other configurations may be adopted. For example, Figure 2 As shown, the second gloss adjustment layer 6 can be formed at a portion other than directly above the pattern ink layer 4, and the pattern of the pattern ink layer 4 is synchronized with the gloss of the first gloss adjustment layer 5. Thus, the gloss of the exposed first gloss adjustment layer 5 can be imparted to the pattern of the pattern ink layer 4, and the design brought by the first gloss adjustment layer 5 can be added to the design brought by the pattern ink layer 4. Therefore, it is possible to form a decorative material 1 having a high-grade design expression close to natural wood or the like. In addition, the second gloss adjustment layer 6 can be integrally formed at a portion other than directly above the pattern ink layer 4 and at a portion of the portion directly above the pattern ink layer 4. Even in this manner, the gloss of the exposed first gloss adjustment layer 5 can be imparted to the pattern of the pattern ink layer 4, and the design brought by the first gloss adjustment layer 5 can be added to the design brought by the pattern ink layer 4.

[0068] (2) In addition, although the example in which the resin component constituting the second gloss adjustment layer 6 is a mixture of a urethane-based thermosetting resin having a polyol and an isocyanate and an ionizing radiation-curable resin having an acrylic group or a methacrylic group is shown, other configurations may be adopted. For example, the resin component constituting the second gloss adjustment layer 6 may be only an ionizing radiation-curable resin having an acrylic group or a methacrylic group. In this way, the scratch resistance of the second gloss adjustment layer 6 can be improved.

[0069] Example

[0070] Hereinafter, specific examples of the decorative material 1 according to the present embodiment will be described.

[0071] (Example 1)

[0072] In Example 1, a sheet with a unit area weight of 50 g / m 2 The impregnated paper (GFR-506: manufactured by Kojin Co., Ltd.) was used as the substrate 2. Furthermore, an underlying solid ink layer 3 and a pattern ink layer 4 were sequentially formed on one surface of the substrate 2 using an oily nitrocellulose resin-based gravure printing ink (PCNT (PCRNT) in each color: manufactured by Toyo Inki Co., Ltd.). The pattern of the pattern ink layer 4 was set to a wood grain pattern.

[0073] Next, the ink for the first gloss adjustment layer 5 was applied to the substrate 2 on which the pattern ink layer 4 was formed so as to cover the entire surface of one side of the substrate 2, thereby forming the first gloss adjustment layer 5. The ink was composed of a two-component urethane thermosetting resin containing 2.4 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fine Chemical Co., Ltd.) and 0.6 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE184: manufactured by BASF) in a total of 3 parts by mass relative to 100 parts by mass of an ionizing radiation curing resin (dipentaerythritol hexaacrylate). The amount of ink applied was set to 5 g / m 2 .

[0074] Then, without irradiating the resin component (ionizing radiation curing resin) constituting the first gloss adjustment layer 5 with ionizing radiation, the ink for the second gloss adjustment layer 6 was directly applied (coated) to the portion located directly above the pattern ink layer 4 on the first gloss adjustment layer 5, thereby forming the second gloss adjustment layer 6. The ink was composed of 5 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Industries, Ltd.) and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) relative to 100 parts by mass of the ionizing radiation curing resin (dipentaerythritol hexaacrylate). Then, the decorative material 1 obtained in this way was irradiated with ionizing radiation to crosslink and cure the ionizing radiation curing resins of the first and second gloss adjustment layers 5 and 6, and further subjected to heat aging.

[0075] (Example 2)

[0076] In Example 2, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 8 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 2 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 10 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 1.

[0077] (Example 3)

[0078] In Example 3, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 16 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 4 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 20 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those in Example 1.

[0079] (Example 4)

[0080] In Example 4, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 40 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fine Chemical Co., Ltd.) and 10 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 50 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 1.

[0081] (Example 5)

[0082] In Example 5, the ink used for the first gloss adjustment layer 5 is composed of 80 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 20 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.) in total of 100 parts by mass of ionizing radiation curing resin (dipentaerythritol hexaacrylate), 10 parts by mass of silica matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) with respect to 100 parts by mass of ionizing radiation curing resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 1.

[0083] (Example 6)

[0084] In Example 6, the ink used for the second gloss adjustment layer 6 is composed of a two-component urethane thermosetting resin containing 20 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 5 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 5 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 25 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). Except for the above, the other configurations are the same as those of Example 1.

[0085] (Example 7)

[0086] In Example 7, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 8 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 2 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 10 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 6.

[0087] (Example 8)

[0088] In Example 8, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 40 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemikal Co., Ltd.) and 10 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Industries, Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 50 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 6.

[0089] (Example 9)

[0090] In Example 9, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 80 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 20 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 6.

[0091] (Example 10)

[0092] In Example 10, the ink used for the second gloss adjustment layer 6 is composed of a two-component urethane thermosetting resin containing 2.4 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 0.6 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 5 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 3 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those in Example 1.

[0093] (Example 11)

[0094] In Example 11, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 8 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 2 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 10 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 10.

[0095] (Example 12)

[0096] In Example 12, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 40 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fine Chemical Co., Ltd.) and 10 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) in a total of 50 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). Except for the above, the other configurations are the same as those of Example 10.

[0097] (Example 13)

[0098] In Example 13, the ink used for the first gloss adjustment layer 5 is composed of 80 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fine Chemical Co., Ltd.) and 20 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.) in total of 100 parts by mass of ionizing radiation curing resin (dipentaerythritol hexaacrylate), 10 parts by mass of silica matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of ultraviolet radical initiator (IRGACURE184: manufactured by BASF) with respect to 100 parts by mass of ionizing radiation curing resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 10.

[0099] (Example 14)

[0100] In Example 14, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 40 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Film Chemical Co., Ltd.) and 10 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Industries, Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE184: manufactured by BASF) in an amount of 50 parts by mass relative to 100 parts by mass of an ionizing radiation curing resin (dipentaerythritol hexaacrylate). The ink used for the second gloss adjustment layer 6 is composed of 30 parts by mass of a two-component urethane thermosetting resin containing 24 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fiin Chemical Co., Ltd.) and 6 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 5 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE184: manufactured by BASF) relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). The other configurations are the same as those of Example 1.

[0101] (Comparative Example 1)

[0102] In Comparative Example 1, the ink used for the first gloss adjustment layer 5 is composed of 1 part by mass of a two-component urethane thermosetting resin containing 0.8 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fine Chemical Co., Ltd.) and 0.2 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE 184: manufactured by BASF) relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). Except for the above, the other configurations are the same as those of Example 1.

[0103] (Comparative Example 2)

[0104] In Comparative Example 2, the ink used for the first gloss adjustment layer 5 is composed of a two-component urethane thermosetting resin containing 120 parts by mass of acrylic polyol (6KW-700: manufactured by Daisei Fine Chemical Co., Ltd.) and 30 parts by mass of polyisocyanate (UR190B curing agent: manufactured by Toyo Ink Co., Ltd.), 10 parts by mass of a silica-based matting agent (Mizukasil P-803: manufactured by Mizusawa Chemical Co., Ltd.), and 5 parts by mass of an ultraviolet radical initiator (IRGACURE184: manufactured by BASF) in a total of 150 parts by mass relative to 100 parts by mass of an ionizing radiation curable resin (dipentaerythritol hexaacrylate). Except for the above, the other configurations are the same as those of Example 1.

[0105] (evaluate)

[0106] For Examples 1 to 14 and Comparative Examples 1 and 2, the occurrence of defects in the first and second glossiness adjusting layers 5 and 6 during continuous coating and the scratch resistance were evaluated.

[0107] (Defects during continuous coating)

[0108] Whether the second gloss adjustment layer 6 has defects during lamination is evaluated by visual observation based on the condition of the second gloss adjustment layer 6 during lamination and the appearance of the prepared decorative material 1. Then, the case of no defects is marked as "○", the case of slight dissolution or scratches being confirmed in the first gloss adjustment layer 5 and slight defects being present is marked as "△", and the case of dissolution or scratches being confirmed in the first gloss adjustment layer 5 and defects being present is marked as "×".

[0109] (Abrasion resistance)

[0110] Use steel wool (#0000) at 500[g / cm 2] load was applied to the decorative material 1 for 10 reciprocating strokes, and then the surface of the decorative material 1 was visually observed to evaluate whether there were scratches or glossiness changes. Then, the case where no scratches or glossiness changes were observed was marked as "○", the case where slight scratches or glossiness changes were observed was marked as "△", and the case where large scratches or glossiness changes were observed was marked as "×".

[0111] The evaluation results are shown in Table 1. If each evaluation item is "○" or "△", each function is sufficiently possessed and the product can be sufficiently used.

[0112] [Table 1]

[0113]

[0114] As shown in Table 1, the decorative materials 1 of Examples 1 to 14 were both "○" or "△" in terms of defects during continuous coating and scratch resistance. The reason why the scratch resistance of the decorative material 1 of Example 14 was lower than that of the decorative material 1 of Example 8 is considered to be that the proportion of the urethane-based thermosetting resin in the second gloss adjustment layer 6 exceeded 25 parts by mass, the proportion of the urethane-based thermosetting resin increased, the crosslinking degree of the resin composition decreased, and the scratch resistance of the second gloss adjustment layer 6 decreased.

[0115] On the other hand, the decorative material 1 of Comparative Example 1 had a scratch resistance of "○", but a defect during continuous coating was "×". The reason why the defect during continuous coating was "×" is considered to be that the proportion of the urethane-based thermosetting resin in the first gloss adjustment layer 5 was too small, which made it easy for the first gloss adjustment layer 5 to dissolve or be scratched when the second gloss adjustment layer 6 was stacked. In addition, for Comparative Example 2, although the defect during continuous coating was "○", the scratch resistance was "×". The reason why the scratch resistance was "×" is considered to be that the proportion of the urethane-based thermosetting resin was too large, which reduced the crosslinking degree of the resin composition and reduced the scratch resistance of the first gloss adjustment layer 5.

[0116] It is clear from the above results that the decorative materials 1 of Examples 1 to 14 in which the addition amount of the urethane-based thermosetting resin, which is the resin component constituting the first gloss adjustment layer 5, is set to the most appropriate range are decorative materials 1 that suppress defects generated when the second gloss adjustment layer 6 is stacked and also have excellent scratch resistance.

[0117] It should be noted that the decorative material 1 of the present invention is not limited to the above-mentioned embodiment and examples, and various changes can be made within the scope that does not impair the characteristics of the invention.

[0118] Explanation of symbols

[0119] 1...decoration material, 2...substrate, 3...base solid ink layer, 4...pattern ink layer, 5...first gloss adjustment layer, 6...second gloss adjustment layer.

Claims

1. A decorative material comprising: a first gloss adjustment layer provided on a substrate; and a second gloss adjustment layer provided partially on the first gloss adjustment layer and having a gloss different from that of the first gloss adjustment layer, wherein: The resin component constituting the first gloss adjustment layer is a mixture of a urethane thermosetting resin having a polyol and an isocyanate and an ionizing radiation curing resin having an acrylic group or a methacrylic group, wherein the urethane thermosetting resin is contained in an amount ranging from 10 parts by mass to 50 parts by mass relative to 100 parts by mass of the ionizing radiation curing resin. The resin component constituting the second gloss adjustment layer is a mixture of a urethane thermosetting resin having a polyol and an isocyanate and an ionizing radiation curing resin having an acrylic group or a methacrylic group, wherein the urethane thermosetting resin is contained in an amount within a range of 3 parts by mass to 25 parts by mass relative to 100 parts by mass of the ionizing radiation curing resin.

2. The decorative material according to claim 1, characterized in that: The number average molecular weight of the ionizing radiation curable resin having an acrylic group or a methacrylic group is in the range of 300 to 5000.

3. The decorative material according to claim 2, characterized in that: The number average molecular weight of the ionizing radiation curable resin having an acrylic group or a methacrylic group is in the range of 300 to 1500.

4. The decorative material according to any one of claims 1 to 3, characterized in that: further comprising a pattern ink layer provided between the substrate and the first gloss adjustment layer, The second glossiness adjustment layer is formed at a portion overlapping the pattern ink layer, and a pattern of the pattern ink layer is synchronized with the gloss of the second glossiness adjustment layer.

5. The decorative material according to any one of claims 1 to 3, characterized in that: further comprising a pattern ink layer provided between the substrate and the first gloss adjustment layer, The first gloss adjustment layer covers the entire surface of the substrate on the first gloss adjustment layer side. The second glossiness adjustment layer is formed at a portion other than immediately above the pattern ink layer, and a pattern of the pattern ink layer is synchronized with the gloss of the first glossiness adjustment layer.

6. The decorative material according to any one of claims 1 to 3, characterized in that: further comprising a pattern ink layer provided between the substrate and the first gloss adjustment layer, The second glossiness adjustment layer is formed so as to at least partially overlap with the pattern ink layer, and the pattern of the pattern ink layer is synchronized with the gloss of the second glossiness adjustment layer.

7. The decorative material according to any one of claims 1 to 3, characterized in that: further comprising a pattern ink layer provided between the substrate and the first gloss adjustment layer, The second gloss adjustment layer is integrally formed at a portion just above the pattern ink layer and a portion other than just above the pattern ink layer, and a pattern of the pattern ink layer is synchronized with the gloss of the second gloss adjustment layer.

8. The decorative material according to any one of claims 1 to 3, characterized in that: further comprising a pattern ink layer provided between the substrate and the first gloss adjustment layer, The first gloss adjustment layer covers the entire surface of the substrate on the first gloss adjustment layer side. The second gloss adjustment layer is integrally formed on a portion other than immediately above the pattern ink layer and a portion of the portion immediately above the pattern ink layer, and a pattern of the pattern ink layer is synchronized with the gloss of the first gloss adjustment layer.

9. The decorative material according to any one of claims 1 to 8, characterized in that: At least one of the first gloss adjustment layer and the second gloss adjustment layer contains a matting agent. The matting agent includes an inorganic material.

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