JP2019064094A - Decorative sheet, cosmetic material and method of manufacturing decorative sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative sheet, a decorative material and a method for manufacturing a decorative sheet, which have both adhesiveness to an adherend and designability based on a high-strength embossing treatment. SOLUTION: A laminated body 1 in which at least a base material 10, a pattern layer 11 and a transparent protective layer 12 are laminated in order, and a flattening layer 2 on a surface 1a on the base material 10 side of the laminated body 1 are provided, and the laminated body 1 is provided. The concave portion 20 is provided on the surface 1b on the transparent protective layer 12 side, the convex portion 21 following the concave portion 20 is provided on the surface 1a on the base material 10 side, and one surface of the flattening layer 2 is the laminated body 1. Complementary surface 2a having a shape complementary to the surface 1a on the substrate 10 side, the other surface is a flat flat surface 2b, and the complementary surface 2a is arranged to face the surface 1a on the substrate side. .. [Selection diagram] Fig. 1

Description

  The present invention relates to a cosmetic sheet, a cosmetic material, and a method of manufacturing the cosmetic sheet.

A decorative sheet is used to give the surface of exterior building materials of buildings a design such as wood grain. In decorative sheets such as woodgrains, high design is achieved by obtaining visual effects and tactile sensation close to that of real wood by emphasizing the uneven shape of the surface or shaping the uneven shape synchronized with the handle. A device for doing this is made (see, for example, Patent Document 1).
The shaping of the surface of the decorative sheet is generally applied by embossing applied from the side of the design surface of the decorative sheet.

Japanese Patent Laid-Open No. 6-210806

  When it is desired to form a large uneven shape on the surface of the decorative sheet, high-strength embossing is performed. The "high strength embossing process" refers to an embossing process that forms an uneven shape also on the back side of the decorative sheet. However, high-strength embossing may form an uneven shape also on the back side of the decorative sheet, which may cause a filling failure of the adhesive in adhesion (lamination) to the adherend. As a result, the adhesion of the decorative sheet may be reduced, and the decorative sheet may be peeled off from the adherend after the decorative sheet is adhered to the adherend.

  An object of the present invention is to provide a cosmetic sheet, a cosmetic material, and a method for producing the cosmetic sheet, which have the adhesive property to the adherend and the design property based on the high embossing treatment.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, the present inventors found out that the said subject is solved by providing a planarization layer in the surface side joined to a to-be-adhered material, as a result of earnestly researching. That is, the present invention provides the following [1] to [11].
[1] A laminated body in which at least a base material, a design layer and a transparent protective layer are laminated in order, and a planarizing layer on the surface of the laminated body on the substrate side, the laminated body on the transparent protective layer side A concave portion is provided on the surface, and a convex portion that follows the concave portion is provided on the surface on the substrate side, and one surface of the planarizing layer is complementary to the surface on the substrate side of the laminate. A decorative sheet which is a complementary surface having a shape, and the other surface is a flat surface which is flat and the complementary surface is opposed to the surface on the substrate side.
[2] The decorative sheet of [1], wherein a back surface primer layer is further provided on the flat surface side of the planarizing layer.
[3] The decorative sheet of [2], wherein the back surface primer layer contains a filler.
[4] The decorative sheet according to any one of [1] to [3], wherein a surface protective layer is further provided on the transparent protective layer.
[5] The decorative sheet according to any one of [1] to [4], wherein an adhesive layer is provided between at least one of the substrate, the pattern layer, and the transparent protective layer.
[6] The decorative sheet according to any one of [1] to [5], wherein a primer layer is provided between at least one of the substrate, the pattern layer, and the transparent protective layer.
[7] A cosmetic material, wherein the decorative sheet of any one of [1] to [6] is adhered to an adherend via an adhesive.
[8] The flattening layer of the decorative sheet is adhered to the adherend via the adhesive, and the material of the flattening layer is a material of the same family as the adhesive, [7] Cosmetic material.
[9] The back surface primer layer of the decorative sheet is adhered to the adherend via the adhesive, and the material of the back surface primer layer is the same kind of material as the adhesive, [7] Cosmetic material.
[10] A step of sequentially laminating at least a substrate, a pattern layer and a transparent protective layer to form a laminate, and embossing from the surface on the transparent protective layer side of the laminate, the surface on the transparent protective layer side Forming a concave portion on the surface of the substrate side, and forming a convex portion following the concave portion on the surface on the substrate side, and applying a composition for forming a planarizing layer on the surface of the laminate on the substrate side; Curing the composition for forming a hard coat layer to form a planarizing layer.
[11] The method for producing a decorative sheet according to [10], wherein the composition for forming a flattening layer is at least one selected from a two-component curing resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curing resin.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of a decorative sheet, a decorative material, and a decorative sheet which have the adhesive property to an adherend, and the designability based on the embossing process with high intensity | strength can be provided.

It is a typical sectional view of a decorative sheet concerning an embodiment of the invention. It is a typical process sectional view showing the manufacturing method of the decorative sheet concerning the embodiment of the present invention. It is a typical sectional view (the 1) of a decorative sheet concerning other embodiments of the present invention. It is typical sectional drawing (the 2) of the decorative sheet which concerns on other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar symbols. However, the drawings are schematic, and the relationship between the thickness and the planar dimension, the ratio of the thickness of each layer, and the like are different from actual ones. Accordingly, specific thicknesses and dimensions should be determined in light of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios among the drawings are included.

Embodiment
[Cosmetic sheet]
In the decorative sheet according to the embodiment of the present invention, as shown in FIG. 1, a laminate 1 in which at least a base 10, a pattern layer 11 and a transparent protective layer 12 are sequentially laminated, and the base 10 side of the laminate 1 The surface 1 a is provided with a planarization layer 2.
In the laminate 1, a recess 20 is provided on the surface 1 b on the transparent protective layer 12 side, and a protrusion 21 that follows the recess 20 is provided on the surface 1 a on the base material 10 side.
The planarizing layer 2 is a complementary surface 2 a having one surface complementary to the surface 1 a of the laminate 1 on the substrate 10 side, and the other surface is a flat surface 2 b having a flat surface, and the complementary surface 2 a is It is arrange | positioned facing the surface 1a by the side of a base material.

  Examples of the substrate 10 include olefin resins such as polyethylene (PE), polypropylene (PP), polybutene (PB), polybutadiene (BR) and polyisoprene (IR). Further, examples of the substrate 10 include vinyl chloride resins such as polyvinyl chloride resin (PVC) and polyvinylidene chloride (PVDC). Moreover, as the base material 10, polyester-type resin, such as a polyethylene terephthalate (PET) and a polybutylene terephthalate (PBT), is mentioned, for example.

  The thickness of the substrate 10 is not particularly limited, but is preferably 1 μm or more and 1000 μm or less, more preferably 10 μm or more and 500 μm or less, and more preferably 20 μm or more from the viewpoint of mechanical strength, handleability and economy. More preferably, it is 200 μm or less.

It is desirable that the base material 10 have a certain degree of concealability so that the color of the pattern layer 11 of pattern printing formed on at least one surface does not change under the influence of the adherend. That is, it is preferable that the base material 10 is not transparent but colored.
When the decorative sheet has a design of a single color pattern, it is possible to use the color itself of the substrate 10 (colored original fabric) as the pattern. When the color itself of the substrate 10 is used as a pattern, the pattern layer 11 can be omitted.

  The picture layer 11 is appropriately disposed of a pigment and / or a dye so as to obtain an intended design. The pattern layer 11 is formed by a printing method such as offset printing, flexographic printing, gravure printing, screen printing, spray printing and inkjet printing, and a transfer method for transferring a printed pattern. The picture layer 11 may be a single layer or may be formed of two or more layers.

As an ink used for formation of the pattern layer 11, what mixed suitably coloring agents, such as a pigment and a dye, an extender, a solvent, a stabilizer, a plasticizer, a catalyst, a hardening agent etc. with binder resin is used.
The binder resin is not particularly limited, and, for example, acrylic resin, styrene resin, polyester resin, urethane resin, chlorinated polyolefin resin, vinyl chloride-vinyl acetate copolymer resin, polyvinyl butyral resin, alkyd resin Examples thereof include resins, petroleum resins, ketone resins, epoxy resins, melamine resins, fluorine resins, silicone resins, cellulose derivatives, rubber resins and the like. These resins may be used alone or in combination of two or more.
The pattern layer 11 may contain additives such as an antioxidant and an ultraviolet light absorber.

  The thickness of the pattern layer 11 is preferably 0.1 μm to 40 μm, more preferably 0.3 μm to 20 μm, and still more preferably 0.5 μm to 10 μm from the viewpoint of exhibiting the designability of the pattern.

  The picture layer 11 is preferably made of wood grain. By making the pattern layer 11 a wood grain pattern, it is possible to make the decorative sheet look like wood with a wood grain tone.

  The transparent protective layer 12 is provided as a transparent film for protecting the substrate 10 and the picture layer 11. The transparent protective layer 12 is preferably attached with an ultraviolet light absorber (UVA) and a hindered amine light stabilizer (HALS) in order to suppress ultraviolet ray deterioration of the substrate 10 and the pattern layer 11.

  Examples of the transparent protective layer 12 include olefin resins such as polyethylene (PE), polypropylene (PP), polybutene (PB), polybutadiene (BR) and polyisoprene (IR). Further, as the transparent protective layer 12, for example, vinyl chloride resins such as polyvinyl chloride resin (PVC) and polyvinylidene chloride (PVDC) can be mentioned. Moreover, as the transparent protective layer 12, for example, polytetrafluoroethylene (PTFE), tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene / hexafluoropropylene copolymer (FEP), tetrafluoro And fluorine-based resins such as ethylene / ethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF) and polyvinyl fluoride (PVF).

The thickness of the transparent protective layer 12 is preferably 20 μm or more and 200 μm or less, more preferably 30 μm or more and 150 μm or less, and preferably 40 μm or more and 100 μm or less from the viewpoint of protecting the base 10 and the picture layer 11. Is more preferred.
Further, the thickness of the transparent protective layer 12 is preferably 2 μm or more, more preferably 5 μm or more, and more preferably 10 μm or more from the depth of the recess 20 from the viewpoint of providing the recess 20 and exhibiting the designability favorably. However, it is more preferable.

  The recess 20 provided in the laminate 1 can increase the visual effect and the tactile sensation to the observer. For example, in the case where a wood grain pattern is formed as the picture layer 11, a concavo-convex shape synchronized with the wood grain pattern is shaped by the concave portion 20 on the surface 1b on the transparent protective layer 12 side. It is possible to realize high designability with which effects and touch can be obtained.

  The depth of the recess 20 is preferably 5 μm or more and 120 μm or less, more preferably 10 μm or more and 100 μm or less, and still more preferably 20 μm or more and 60 μm or less, from the viewpoint of exhibiting the designability well.

The recess 20 is formed by embossing the surface 1 b on the transparent protective layer 12 side.
By subjecting the surface 1b on the transparent protective layer 12 side to a high strength embossing treatment, the convex portion 21 that follows the recess 20 is formed on the surface 1a on the base material 10 side. The convex portion 21 may cause a filling failure of the adhesive in adhesion (lamination) to the adherend, and as a result, the adhesion of the decorative sheet may be reduced. Then, the laminated body 1 equips the surface 1a at the side of the base material 10 with the planarization layer 2. As shown in FIG.

The planarizing layer 2 can be in close contact with the surface 1 a on the base 10 side without any gap because the one surface is the complementary surface 2 a having a shape complementary to the surface 1 a on the base 10 side of the laminate 1 . In addition, since the planarizing layer 2 is a flat surface 2 b whose other surface is flat, when bonding (lamination) to an adherend, adhesion can be made without intimate contact with the adherend.
Here, the flat surface 2b means that the arithmetic average roughness Ra in accordance with JIS B 0601: 2001 when the cutoff value is 0.8 mm is 0.1 μm or less. Moreover, even if the laminate 1 has a form in which another layer is laminated on the planarization layer 2, the adhesive surface facing the adherend has the above-mentioned arithmetic average roughness Ra of 0.1 μm or less.
In the present specification, the arithmetic average roughness Ra is an average value of measurement values at any 20 points where there are no defects or abnormal points at places where there are no abnormal points such as dust and scratches visually.

  The flattening layer 2 is preferably at least one selected from a two-component curing resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curing resin.

  As a two-component curable resin, a two-component curable polyurethane resin using an isocyanate as a curing agent, a two component curable epoxy resin, a two component curable urethane-modified acrylic resin, a two component curable polyester resin, and the like can be mentioned.

  Examples of the thermoplastic resin include acrylic resins, cellulose resins, urethane resins, vinyl chloride resins, polyester resins, polyolefin resins, polycarbonates, nylons, polystyrenes, and ABS resins.

  Examples of thermosetting resins include acrylic resins, urethane resins, phenol resins, urea melamine resins, epoxy resins, unsaturated polyester resins, silicone resins and the like. A curing agent is added to the thermosetting resin as needed.

The ionizing radiation curable resin is a composition containing a compound having an ionizing radiation curable functional group. Examples of the ionizing radiation curable functional group include ethylenic unsaturated bond groups such as (meth) acryloyl group, vinyl group and allyl group, and epoxy group and oxetanyl group.
As the ionizing radiation curable resin, a compound having an ethylenically unsaturated bond group is preferable. In addition, from the viewpoint of suppressing damage to the flattening layer 2 in the process of producing the decorative sheet, as the ionizing radiation curing resin, a compound having two or more ethylenic unsaturated bonding groups is more preferable, and among them, the ethylenic More preferred are polyfunctional (meth) acrylate compounds having two or more unsaturated bonding groups. As a polyfunctional (meth) acrylate type compound, any of a monomer and an oligomer can be used.
In addition, ionizing radiation means one having an energy quantum capable of polymerizing or crosslinking a molecule among electromagnetic waves or charged particle beams, and usually, ultraviolet (UV) or electron beam (EB) is used, and others It is also possible to use charged particle beams such as electromagnetic waves such as X-rays and γ-rays, α-rays and ion beams.

Among the polyfunctional (meth) acrylate compounds, as a bifunctional (meth) acrylate monomer, ethylene glycol di (meth) acrylate, bisphenol A tetraethoxy diacrylate, bisphenol A tetrapropoxy diacrylate, 1,6-hexane Diol diacrylate etc. are mentioned.
Examples of trifunctional or higher (meth) acrylate monomers include trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, Pentaerythritol tetra (meth) acrylate, isocyanuric acid modified tri (meth) acrylate and the like can be mentioned.
Further, the (meth) acrylate monomer may be one in which a part of the molecular skeleton is modified, and is modified by ethylene oxide, propylene oxide, caprolactone, isocyanuric acid, alkyl, cyclic alkyl, aromatic, bisphenol or the like. Can also be used.

Moreover, as a polyfunctional (meth) acrylate type oligomer, acrylate type polymers, such as a urethane (meth) acrylate, an epoxy (meth) acrylate, polyester (meth) acrylate, polyether (meth) acrylate, etc. are mentioned.
Urethane (meth) acrylates are obtained, for example, by the reaction of polyhydric alcohols and organic diisocyanates with hydroxy (meth) acrylates.
Preferred epoxy (meth) acrylates are (meth) acrylates obtained by reacting trifunctional or higher functional aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins, etc. with (meth) acrylic acid, and bifunctional (Meth) acrylates obtained by reacting the above aromatic epoxy resin, alicyclic epoxy resin, aliphatic epoxy resin, etc. with polybasic acid and (meth) acrylic acid, and bifunctional or more aromatic epoxy resin, (Meth) acrylates obtained by reacting an alicyclic epoxy resin, an aliphatic epoxy resin or the like, a phenol and (meth) acrylic acid.
The above ionizing radiation curable resins can be used singly or in combination of two or more.

When the ionizing radiation curable resin is an ultraviolet curable resin, the composition for forming a planarization layer preferably contains an additive such as a photopolymerization initiator and a photopolymerization accelerator.
Examples of the photopolymerization initiator include one or more selected from acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzyl dimethyl ketal, benzoyl benzoate, α-acyloxime ester, thioxanthones and the like.
The photopolymerization accelerator can reduce the polymerization inhibition by air at the time of curing and can accelerate the curing rate. Examples of the photopolymerization accelerator include one or more selected from p-dimethylaminobenzoic acid isoamyl ester, p-dimethylaminobenzoic acid ethyl ester and the like.

The thickness of the planarizing layer 2 needs to be equal to or greater than the height of the convex portion 21 from the viewpoint of relaxing the uneven shape by the convex portion 21. Here, the thickness of the planarizing layer 2 refers to the thickness from the complementary surface 2 a in contact with the surface 1 a on the side of the base material 10 where the convex portion 21 is not provided to the flat surface 2 b.
The thickness of the planarization layer 2 is preferably 0.5 μm or more, more preferably 0.8 μm or more, and still more preferably 1.0 μm or more, from the height of the convex portion 21.

[Method of manufacturing cosmetic sheet]
The method for producing the decorative sheet of the present invention will be described with reference to FIG.

First, as shown to Fig.2 (a), the process of laminating | stacking at least the base material 10, the pattern layer 11, and the transparent protective layer 12 in order, and forming the laminated body 1 is performed.
The above-mentioned thing is prepared as a base material 10, and the picture layer 11 and the transparent protective layer 12 are laminated. As a method of laminating the pattern layer 11, printing methods such as offset printing, flexo printing, gravure printing, screen printing, spray printing and inkjet printing, and a transfer method of transferring a printed pattern can be adopted. . The pattern layer 11 can be made, for example, woodgrain. The above-mentioned thing is prepared as the transparent protective layer 12, and it arrange | positions so that the base material 10 and the pattern layer 11 may be covered.
In this step, layers other than the pattern layer 11 and the transparent protective layer 12 (bonding auxiliary layers such as an adhesive layer and a primer layer) may be laminated on the base material 10.

Next, as shown in FIG. 2 (b), embossing is applied from the surface 1 b on the transparent protective layer 12 side of the laminate 1 to form a recess 20 on the surface 1 b on the transparent protective layer 12 side. The process of forming the convex part 21 which followed the recessed part 20 in the surface 1a of 1 is performed.
In this process, in order to realize a high designability such that a visual effect and a tactile sensation close to the real thing can be realized, the surface 1b on the transparent protective layer 12 side is embossed with a high strength to follow the recess 20 The portion 21 is formed.

Next, as shown in FIG. 2 (c), a composition for forming a flattening layer is applied to the surface 1a on the base material 10 side of the laminate 1, and the composition for forming a flattening layer is cured to form a flattening layer. Perform the step of forming 2.
The composition for forming a planarization layer is preferably at least one selected from a two-component curing resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curing resin.
In this step, the viscosity of the composition for forming a planarization layer is not particularly limited as long as it can form an uncured planarization layer on the surface 1 a of the laminate 1 on the substrate 10 side.
After the uncured planarized layer is formed, one surface is a complementary surface 2a having a shape complementary to the surface 1a on the substrate 10 side of the laminate 1 by curing the uncured planarized layer; A planarizing layer 2 is formed which is a flat surface 2 b having a flat surface.

  According to the decorative sheet according to the embodiment of the present invention manufactured as described above, when the decorative sheet is adhered to the adherend by providing the flattening layer 2, the decorative sheet and the adherend Adhesiveness can be maintained high because adhesion can be made without gaps.

(Other embodiments)
As described above, although the present invention has been described by the embodiment, it should not be understood that the description and the drawings, which form a part of this disclosure, limit the present invention. Various alternative embodiments and operating techniques should be apparent to those skilled in the art from this disclosure.

For example, as shown in FIG. 3, it is preferable that the back surface primer layer 30 is further provided in the flat sheet 2b side of the planarization layer 2 as a decorative sheet.
The back surface primer layer 30 is provided on the flat surface 2 b side of the planarization layer 2 in order to improve the adhesion to the adherend.

  The thickness of the back surface primer layer 30 may be any thickness as long as it exhibits the above function, preferably 0.1 μm or more and 10 μm or less, more preferably 0.2 μm or more and 8 μm or less, and more preferably 0.5 μm or more More preferably, it is 5 μm or less.

  The back surface primer layer 30 preferably contains a filler. When the back surface primer layer 30 contains a filler, unevenness can be formed on the surface of the back surface primer layer 30. By having unevenness on the surface of the back surface primer layer 30, blocking can be prevented, and the adhesion to the adhesive used for adhesion to the adherend can be enhanced by the anchor effect.

  As the filler to be contained in the back surface primer layer 30, polymer beads such as acrylic beads, acrylic-styrene beads and silicone beads are preferably mentioned. Also, silica, magnesium carbonate, kaolin, clay, calcium oxide, magnesium oxide, calcium hydroxide, magnesium hydroxide, talc, mica, hydrotalcite, aluminum silicate, magnesium silicate, calcium silicate, calcined talc, wollast Magnetic powder such as knight, potassium titanate, magnesium sulfate, calcium sulfate, magnesium phosphate, sepiolite, zonolite, aluminum borate, sendust, alnico magnet, various ferrites, cement, antimony trioxide, magnesium oxysulfate, hydrated gypsum, Preferred are those made of an inorganic material such as alum. Among these, silica is preferable because it can be easily procured and inexpensive.

  The content of the filler is not particularly limited, but from the viewpoint of maintaining the flatness of the back surface primer layer 30, it is preferably 10 parts by mass or less with respect to 100 parts by mass of the composition component for back surface primer layer formation, It is more preferably part or less, further preferably 6 parts by mass or less.

  The particle diameter of the filler is not particularly limited, but is preferably 0.4 μm or more and 10 μm or less, more preferably 0.6 μm or more and 8 μm or less, from the viewpoint of forming irregularities on the surface of the back surface primer layer 30. More preferably, it is 0.8 μm or more and 5 μm or less.

  In the decorative sheet provided with the back surface primer layer 30, it is preferable that the material of the planarization layer 2 is a material which is excellent in the bondability with the base material 10 and the back surface primer layer 30.

In the decorative sheet, as shown in FIG. 4, it is preferable that a surface protective layer 40 be further provided on the transparent protective layer 12.
The surface protective layer 40 can impart scratch resistance and chemical resistance to the surface of the decorative sheet.

  The thickness of the surface protective layer 40 may be a thickness that exhibits the above function, preferably 0.5 μm or more and 20 μm or less, more preferably 0.8 μm or more and 10 μm or less, and 1 μm or more and 5 μm or less It is further preferred that

  The surface protective layer 40 preferably contains, as a main component, a resin component such as a thermoplastic resin, a cured product of a thermosetting resin composition, or a cured product of an ionizing radiation curable resin composition. The main component means 50% by mass or more of the total solid content of the surface protective layer 40, and the ratio is preferably 70% by mass or more, and more preferably 80% by mass or more.

In the decorative sheet, an adhesive layer is preferably provided between at least one of the substrate 10, the pattern layer 11, and the transparent protective layer 12. The adhesive layer has a function of assisting the bonding of each layer of the base 10, the picture layer 11, and the transparent protective layer 12, and the bonding of each layer can be strengthened.
The adhesive layer is preferably at least one selected from a two-component curing resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curing resin.

Moreover, although a decorative sheet is not shown in figure, it is preferable that a primer layer is provided between at least one of the base material 10, the pattern layer 11, and the transparent protective layer 12. A primer layer has a function which assists joining of each layer of substrate 10, picture layer 11, and transparent protective layer 12, and can strengthen joining of each layer.
As the primer layer, a resin that improves the adhesion between both layers facing each other across the primer layer may be appropriately selected, and there is no particular limitation.

Cosmetics
The decorative material of the present invention is formed by adhering the above-mentioned decorative sheet to an adherend via an adhesive.

In the case where the flattening layer 2 of the decorative sheet is adhered to the adherend via an adhesive as the decorative material of the present invention, the material of the flattening layer 2 is preferably a material of the same family as the adhesive. .
Since the planarization layer 2 is a material of the same system as the adhesive used for the adhesion to the adherend, the adhesion to the adherend can be strengthened. The adhesive used to bond the composition for forming a planarization layer 2 and the composition for forming a planarization layer and the adherend includes at least a resin selected from a two-component curable resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curable resin. One type is preferable.

In the case where the back surface primer layer 30 of the decorative sheet is adhered to the adherend through the adhesive as the decorative material of the present invention, the material of the back surface primer layer 30 is preferably a material of the same system as the adhesive. .
Since the back surface primer layer 30 is a material of the same system as the adhesive used for the adhesion to the adherend, the adhesion to the adherend can be strengthened. As an adhesive used for adhesion with the composition for back surface primer layer formation which forms the back surface primer layer 30, and an adherend, it is at least chosen from two-component cured resin, thermoplastic resin, thermosetting resin, and ionizing radiation cured resin One type is preferable.

  EXAMPLES The present invention will next be described in more detail by way of examples, which should not be construed as limiting the invention thereto.

(Example)
The base material 10, the pattern layer 11, and the transparent protective layer 12 were laminated in order, and the laminated body 1 was formed.
Then, embossing is applied from the surface 1b on the transparent protective layer 12 side of the laminate 1 to form a recess 20 on the surface 1b on the transparent protective layer 12 side, and a protrusion following the recess 20 on the surface 1a on the substrate 10 side 21 was formed.
Next, a composition for forming a flattening layer (product of Taisei Fine Chemical Co., Ltd., product name “urethane-modified acrylic polymer 8UA”) is applied to the surface 1 a of the laminate 1 on the substrate 10 side, and the composition for forming a flattening layer is It was cured to form a flattening layer 2 to obtain a decorative sheet in the example.

  The decorative sheet in the obtained example was adhered to an adherend (aluminum plate, 1 mm thick) via an adhesive (manufactured by Cemedine Co., Ltd., product name “Metal Lock Y 610”) to form a cosmetic.

(Comparative example)
The same procedure was followed in the example except that the flattening layer 2 was not formed, and a decorative sheet in a comparative example was obtained.

  The decorative sheet in the obtained comparative example was adhered to an adherend (aluminum plate, 1 mm thick) via an adhesive (manufactured by Cemedine Co., Ltd., product name “metal lock Y610”) to form a cosmetic.

<Adhesive evaluation>
By providing the flattening layer on the decorative sheet, the cosmetic material in the example was able to adhere closely to the adherend without any gap in adhesion (lamination) to the adherend. Therefore, the cosmetic material in the example had sufficient initial adhesion and durability adhesion between the flattening layer and the adherend.
On the other hand, the decorative material in the comparative example has the flattening layer in the decorative sheet, so that the convex portion 21 follows the concave portion 20 on the surface 1 a on the substrate 10 side in adhesion (lamination) to the adherend. Poor filling and poor adhesion of the adhesive occurred, and adhesion to the adherend was insufficient. Therefore, the cosmetic material in the comparative example had insufficient initial adhesion and durability adhesion between the flattening layer and the adherend.

  The decorative sheet of the present invention has adhesion to an adherend and design properties, and is a member for interior and exterior of a building such as a wall, a ceiling, and a floor, a window frame, a door, a handrail, a baseboard, a curving edge, It is suitably used as a layer constituting a surface decorative board of a kitchen, furniture or a cabinet of a light electric or office equipment or the like, as well as interior and exterior members of a vehicle, as well as fittings such as malls.

DESCRIPTION OF SYMBOLS 1 ... Laminated body 2 ... Flattening layer 10 ... Base material 11 ... Pattern layer 12 ... Transparent protective layer 20 ... Concave part 21 ... Convex part 30 ... Back surface primer layer 40 ... Surface protective layer

Claims (11)

A laminate in which at least a substrate, a pattern layer and a transparent protective layer are laminated in order;
And a flattening layer on the surface of the laminate on the substrate side,
In the laminate, a concave portion is provided on the surface on the transparent protective layer side, and a convex portion that follows the concave portion is provided on the surface on the base material side,
The planarizing layer is a complementary surface in which one surface is complementary to the surface on the substrate side of the laminate, and the other surface is a flat surface, and the complementary surface is the substrate. A decorative sheet placed opposite the side surface.   The decorative sheet according to claim 1, further comprising a back surface primer layer on the flat surface side of the planarizing layer.   The decorative sheet according to claim 2, wherein the back surface primer layer contains a filler.   The decorative sheet according to any one of claims 1 to 3, wherein a surface protective layer is further provided on the transparent protective layer.   The decorative sheet according to any one of claims 1 to 4, wherein an adhesive layer is provided between at least one of the base material, the pattern layer and the transparent protective layer.   The decorative sheet according to any one of claims 1 to 5, wherein a primer layer is provided between at least one of the substrate, the pattern layer and the transparent protective layer.   A cosmetic material, wherein the decorative sheet according to any one of claims 1 to 6 is adhered to an adherend via an adhesive. The flattening layer of the decorative sheet is bonded to the adherend via the adhesive;
The cosmetic material according to claim 7, wherein a material of the flattening layer is a material of the same family as the adhesive. The back surface primer layer of the decorative sheet is adhered to the adherend via the adhesive,
The cosmetic material according to claim 7, wherein a material of the back surface primer layer is a material of the same family as the adhesive. Forming a laminate by sequentially laminating at least a substrate, a pattern layer and a transparent protective layer;
Applying a embossing process from the surface on the transparent protective layer side of the laminate to form a recess on the surface on the transparent protective layer side, and forming a protrusion following the recess on the surface on the substrate side;
Applying a composition for forming a flattening layer on the surface of the laminate on the side of the base material, curing the composition for forming a flattening layer to form a flattening layer, and producing a decorative sheet .   The method for producing a decorative sheet according to claim 10, wherein the composition for forming a flattening layer is at least one selected from a two-component curing resin, a thermoplastic resin, a thermosetting resin, and an ionizing radiation curing resin.