JP6720496B2 - Non-combustible moisture-proof decorative board and fittings - Google Patents

Description

The present invention relates to a non-combustible moisture-proof decorative board and a fitting, for example, in a building such as a house, an interior such as a floor surface and a wall surface, or a non-combustible moisture-proof decorative board and a fitting used for furniture and the like, particularly a non-combustible door, The present invention relates to a non-combustible moisture-proof decorative board and fittings that can be used in places where non-combustibility is required such as fire doors.

2. Description of the Related Art Conventionally, a decorative sheet in which a decorative sheet and an incombustible member, a board, a plate, or the like are bonded together has been used for various purposes such as interior decoration of floors and wall surfaces, furniture, and the like. Non-flammability is required for these applications, and those that have passed the test prescribed by the Ministry of Land, Infrastructure, Transport and Tourism have been certified and used.
In the case of polyolefin resin that has been used as a decorative sheet instead of the conventional vinyl chloride resin due to problems at the time of incineration, the layer thickness of the resin sheet is limited and the adhesive is limited to satisfy the standard of non-combustibility certification. You can do it, but it is not completely satisfactory, and in some cases you may fail. In addition, it is desired to provide an inorganic thin film vapor deposition layer as a door member in order to prevent warpage due to changes in temperature and humidity, but it is difficult to balance these with nonflammability.

JP, 2002-355910, A JP 2001-301084 A

The present invention has been made to solve the above problems, and an object of the present invention is to provide a non-combustible moisture-proof decorative board and a fitting in which both non-combustibility and moisture resistance can be achieved.

In order to solve the above problems, the non-combustible moisture-proof decorative board according to one embodiment of the present invention is a non-combustible base material containing an inorganic material as a main component, and a makeup provided on one surface side of the non-combustible base material. A sheet and a moisture-proof sheet provided on the other surface side of the noncombustible base material are provided.
Further, a fitting according to one aspect of the present invention includes the above-described noncombustible moisture-proof decorative board and a core material, and the noncombustible moisture-proof decorative board is attached to at least one surface side of the core material. Is characterized by.

According to one aspect of the present invention, it is possible to provide a non-combustible moisture-proof decorative board and a fitting in which both non-combustibility and moisture resistance are compatible.

It is sectional drawing which shows the structural example of the noncombustible moisture-proof decorative board 1 which concerns on embodiment of this invention. It is sectional drawing which shows the 1st structural example of the noncombustible base material 2. It is sectional drawing which shows the 2nd structural example of the noncombustible base material 2. It is sectional drawing which shows the 3rd structural example of the noncombustible base material 2. It is sectional drawing which shows the 4th structural example of the noncombustible base material 2. It is sectional drawing which shows the structural example of the moisture-proof sheet 6 which concerns on embodiment of this invention. It is sectional drawing which shows the structural example of the fitting 10 which concerns on embodiment of this invention. It is sectional drawing which shows an example of the decorative sheet 4.

Embodiments of the present invention will be described below with reference to the drawings. In each of the drawings described below, portions corresponding to each other are designated by the same reference numerals, and repeated description of the portions designated by the same reference numerals will be appropriately omitted. Further, the embodiment of the present invention exemplifies a configuration for embodying the technical idea of the present invention, and specifies the material, shape, structure, arrangement, dimensions, etc. of each part as follows. Not. Various changes can be added to the technical idea of the present invention within the technical scope defined by the claims described in the claims.

<Noncombustible moisture-proof decorative board>
FIG. 1 is a cross-sectional view showing a configuration example of a noncombustible moisture-proof decorative board 1 according to an embodiment of the present invention. As shown in FIG. 1, the non-combustible moisture-proof decorative board 1 includes a non-combustible base material 2 containing an inorganic material as a main component, a decorative sheet 4 provided on one surface 2a side of the non-combustible base material 2, and a non-combustible base material. The moisture-proof sheet 6 provided on the other surface 2b side of the flexible substrate 2. When one surface 2a of the noncombustible base material 2 is the front surface, the other surface 2b of the noncombustible base material 2 is the back surface.
A first adhesive layer 3 is provided between the non-combustible base material 2 and the decorative sheet 4, and the non-combustible base material 2 and the decorative sheet 4 are bonded by the first adhesive layer 3. A second adhesive layer 5 is provided between the non-combustible base material 2 and the moisture-proof sheet 6, and the non-combustible base material 2 and the moisture-proof sheet 6 are bonded by the second adhesive layer 5. There is.

(1) Non-combustible base material The non-combustible base material 2 has an inorganic material as a main component. The noncombustible base material 2 has, for example, any one of the following first to fourth configuration examples. Moreover, the non-combustible base material 2 may have a structure in which two or more configurations of the first to fourth configuration examples are stacked, or one or more configurations of the first to fourth configuration examples. Alternatively, a structure in which another material layer (preferably a layer made of a noncombustible material) is laminated may be used. The thickness of the non-combustible base material 2 is not particularly limited, but one example is 3 mm or more and 10 mm or less.

(1.1) First Configuration Example FIG. 2 is a cross-sectional view showing a first configuration example of the noncombustible base material 2 shown in FIG. In the first configuration example, the nonflammable base material 2 has an inorganic base material layer 21 containing an inorganic material, and a surface layer 22 provided on the surface of the inorganic base material layer containing a metal layer.
The non-combustible base material 2 can be selected to have an arbitrary thickness, but for example, the thickness is preferably 2 mm or more and 8 mm or less, and more preferably 2.7 mm or more and 3.3 mm or less. In this embodiment, the thickness of the noncombustible base material 2 is 3 mm. The mass of the non-combustible substrate 2 can be arbitrarily selected per 1 square meter, but for example, the mass per square meter is preferably 2.1 kg/m ² or more and 4.2 kg/m ² or less. In the present embodiment, the mass of the nonflammable substrate 2 per square meter is 3.74 kg/m ² . Although the bulk specific gravity of the non-combustible substrate 2 can be selected, the bulk specific gravity is preferably 1.0 or more and 2.0 or less, for example. In the present embodiment, the bulk specific gravity of the noncombustible base material 2 is 1.3.

(1.1.1) Inorganic Base Material Layer As shown in FIG. 2, the inorganic base material layer 21 includes a lower layer 211 which is a first inorganic layer containing an inorganic material and a second inorganic layer containing an inorganic material. It is a laminated body including a certain upper layer 212.
The inorganic base material layer 21 may have any thickness, but preferably has a thickness of, for example, 2 mm or more and 15 mm or less, and has a thickness of 2 mm or more and 9 mm or less from the viewpoint of heat generation property and maneuverability. preferable. In this embodiment, the thickness of the inorganic base material layer 21 is 2.9 mm. Further, these inorganic base materials may be subjected to a surface treatment such as sanding in order to enhance the adhesion with other layers.

Inorganic substrate layer 21 may be selected an arbitrary mass per square meter, it is preferable for example mass per square meter is 2.0 kg / ^{m 2} or more 4.0 kg / ^{m 2} or less. In this embodiment, the mass of the inorganic base material layer 21 per square meter is 3.63 kg/m ² .
The bulk density of the inorganic base material layer 21 can be selected as desired, but the bulk density is preferably 1.0 or more and 2.0 or less, for example. In this embodiment, the bulk specific gravity of the inorganic base material layer 21 is 1.3.

(Underlayer)
The lower layer 211 contains, as an inorganic material, volcanic glassy deposits such as shirasu foam, clay and pumice. In addition, the lower layer 211 contains, as inorganic materials, for example, an inorganic filler such as aluminum hydroxide, magnesium hydroxide, magnesium carbonate, and borax, and an inorganic powder such as calcium carbonate, microsilica, and slag powder. I'm out. Further, the lower layer 211 contains, for example, an artificial mineral fiber heat insulating material such as rock wool, slag wool, glass wool, and mineral wool, an organic binder such as starch, phenol resin, polyvinyl alcohol, and a wax sizing agent. There is.

The lower layer 211 can have an arbitrary thickness, but preferably has a thickness of 1.0 mm or more and 2.0 mm or less. In this embodiment, the lower layer 211 has a thickness of 1.4 mm. Lower 211 can select any of the mass per square meter, it is preferable for example mass per square meter is 1.5 kg / ^{m 2} or more 4.0 kg / ^{m 2} or less. In this embodiment, the mass of the lower layer 211 per square meter is 1.75 kg/m ² . The lower layer 211 can have any bulk specific gravity selected, but preferably has a bulk specific gravity of 1.0 or more and 2.0 or less. In this embodiment, the bulk specific gravity of the lower layer 211 is 1.25.

(Upper layer)
The upper layer 212 contains the same volcanic glassy deposits as the lower layer 211, an inorganic filler, an inorganic powder, an artificial mineral fiber heat insulating material, an organic binder and a wax sizing agent.
The upper layer 212 can be selected to have an arbitrary thickness and a mass and a bulk specific gravity per square meter, but it is preferable that the upper layer 212 has a mass and a bulk specific gravity per square meter in the same range as the lower layer 211. In this embodiment, the upper layer 212 has a thickness of 1.5 mm. Further, in this embodiment, the mass of the upper layer 212 per square meter is 1.88 kg/m ² . Furthermore, in the present embodiment, the bulk specific gravity of the inorganic base material layer 21 is 1.25. That is, it is preferable that the upper layer 212 which is the second inorganic layer of the inorganic base material layer 21 is formed thicker than the lower layer 211 which is the first inorganic layer and has a larger mass per square meter.
Examples of such non-combustible base material 2 include plates such as volcanic glassy multi-layer plate (based on JIS A 5440 "non-combustible volcanic glassy multi-layer plate").

(1.1.2) Surface Layer As shown in FIG. 2, the surface layer 22 is made of a laminate including a metal layer 224, and has an adhesive layer 221 for attaching the surface layer 22 to the inorganic base material layer 21. As shown in FIG. 2, in the present embodiment, the surface layer 22 of the noncombustible base material 2 includes the metal layer 224, the resin layers 223 and 225, the paper layers 222 and 226, and the adhesive layer 221 on the inorganic base material layer 21 side. The adhesive layer 221/paper layer 222/resin layer 223/metal layer 224/resin layer 225/paper layer 226 are laminated in this order. The surface layer 22 may have any thickness, but preferably has a thickness of, for example, 0.05 mm or more and 0.5 mm or less. In this embodiment, the thickness of the surface layer 22 is 0.1 mm. The surface layer 22 may have any mass per square meter, but for example, the mass per square meter is preferably 100 g/m ² or more and 200 g/m ² or less. In this embodiment, the mass of the surface layer 22 per square meter is 110 g/m ² .

(Metal layer)
The metal layer 224 is made of, for example, calcium silicate, steel, aluminum or stainless steel. In this embodiment, the metal layer 224 is made of aluminum. The thickness of the metal layer 224 is preferably 4 μm or more and 50 μm or less. When the thickness of the metal layer 224 is 4 μm or more, nonflammability and heat resistance are improved. Further, when the thickness of the metal layer 224 is 50 μm or less, it is possible to prevent the metal layer 224 from being unnecessarily thick, reduce the cost, and improve the cutting workability of the nonflammable moisture-proof decorative board 1. In this embodiment, the thickness of the metal layer 224 made of aluminum is 12 μm.

(Resin layer)
For the resin layers 223 and 225, for example, a material having high adhesiveness between the metal layer and the paper layer such as urethane resin or acrylic resin is used. In this embodiment, the resin layer is made of urethane resin. In addition, the resin layers 223 and 125 preferably have a mass (solid amount) per square meter of 2.0 g/m ² or more and 15.0 g/m ² or less. In the resin layers 223 and 225 of the present embodiment, the mass (solid amount) of the urethane resin per square meter is 4.0 g/m ² .

(Paper layer)
The paper layers 222 and 226 are not particularly composed of a limited material, and for example, thin paper, titanium paper, kraft paper, linter paper, or the like is used. Above all, it is preferable to use a paper material having a high resin impregnation property as the paper layers 222 and 226. In this embodiment, thin paper is used for the paper layers 222 and 226. The mass (solid content) per square meter of the adhesive layer 221 is preferably 20.0 g / ^{m 2} or more 30.0 g / ^{m 2} or less. In the adhesive layer 221, the mass of the thin paper per square meter is 23.0 g/m ² .

(Adhesive layer)
As the adhesive layer 221, a material having high adhesiveness between the surface layer 22 and the inorganic base material layer 21, such as urethane resin adhesive or acrylic resin adhesive, is used. In this embodiment, a urethane resin adhesive is used as the adhesive layer 221. Further, the adhesive layer 221, a mass (solid content) per square meter is preferably 20.0 g / ^{m 2} or more 30.0 g / ^{m 2} or less. The function as the adhesive layer 221 is enhanced by increasing the mass (solid amount) per square meter as compared with the resin layers 223 and 125. In the adhesive layer 221, the urethane resin has a mass (solid amount) of 24.0 g/m ² per square meter.

(1.2) Second Configuration Example FIG. 3 is a sectional view showing a second configuration example of the noncombustible base material 2 shown in FIG. In the second configuration example,
The non-combustible substrate 2 is a glass magnesium oxide plate containing net-like glass fibers as a matrix and magnesium oxide as a main component.
As an example, as shown in FIG. 3, the non-combustible base material 2 includes a first sealer layer 32 on the surface of the glass magnesium oxide plate 33 (surface on the decorative sheet side) and a putty containing calcium carbonate as a main component. The layer 31 is formed in this order, and the second sealer layer 34 is formed on the back surface (the surface opposite to the decorative sheet side) of the glass magnesium oxide plate 33.

(Glass magnesium oxide plate)
The glass-magnesium oxide plate 33 is a plate-shaped member whose main component is magnesium oxide and which has a net-shaped glass fiber as a matrix. Here, the main component means 50 parts by mass or more.
Specifically, the glass magnesium oxide plate 33 has a net-shaped glass fiber as a matrix and has a mass ratio of 52 to 57 parts by mass of magnesium oxide, 28 parts by mass of magnesium chloride, 12 parts by mass of pearlite, and wood chips (long). 5 to 15 mm) and 3 to 5 parts by mass of an inorganic flame retardant (phosphoric acid).
The net-shaped glass fiber has, for example, a thread thickness of 1260 d length and 630 d width and a thread interval of 1.5 mm in length and 1.5 mm in width. The glass magnesium oxide plate 33 has, for example, a thickness of 0.4 mm and a mass of 70 g/m ² .
In the present embodiment, two or more layers of the glass magnesium oxide plate 33 having the above configuration may be laminated to form a glass magnesium oxide plate. The number of layers may be one layer, two layers, or four or more layers.

(Putty layer)
The putty layer 31 is composed mainly of calcium carbonate. Here, the main component means 70 parts by mass or more. The putty layer 31 of the present embodiment is composed of, for example, 82.3 parts by mass of calcium carbonate and 17.7 parts by mass of urethane resin in a mass ratio. The putty layer 31 has a thickness of 0.05 mm or less and a mass of 35.4 g/m ² (solid amount) or less, for example. Here, the putty layer 31 is applied and then polished to smooth the surface.

(First sealer layer)
The first sealer layer 32 is composed of 100% by mass of urethane resin. The mass of the first sealer layer 32 is set to 7.99 g/m ² (solid amount) or less. The first sealer layer 32 is provided to improve the adhesion of the surface of the glass magnesium oxide plate 33.
(Second sealer layer)
The second sealer layer 34 is composed of 100% by mass of urethane resin. The mass of the second sealer layer 34 is set to 6.86 g/m ² (solid amount) or less. The second sealer layer 34 is provided to improve the adhesion of the back surface of the glass magnesium oxide plate 33.

(1.3) Third Configuration Example FIG. 4 is a cross-sectional view showing a third configuration example of the noncombustible base material 2 shown in FIG. In the third configuration example, the non-combustible base material 2 is a gypsum board mixed with glass fibers. The thickness of this gypsum board is 5 mm or more and 7 mm or less, and the mass thereof is 5.0 kg/m ² or more and 7.0 kg/m ² or less. This gypsum board is mainly composed of gypsum dihydrate, and glass fiber is mixed in the gypsum. As shown in FIG. 4, this gypsum plate functionally has a base material main body 42 and double-sided portions 41 and 43 respectively located on both surfaces of the base material main body 42. The base material body 42 contains, for example, 0.5 parts by mass of an organic additive (starch, paraffin, silicone, etc.) and 0.1 to 0.5 parts by mass of glass fiber per 100 parts by mass of gypsum. Configured.
Each of the double-sided portions 41 and 43 is formed by mixing glass fiber non-woven fabric with dihydrate gypsum. At the embedding position of the glass fiber non-woven fabric, the mass ratio of the glass fiber non-woven fabric is 80 parts by mass or more. Further, in order to improve the adhesiveness, the glass fiber nonwoven fabric may contain an acrylic resin binder. The mass of the glass fiber nonwoven fabric is, for example, about 45 to 55 g/m ² .

(1.4) Fourth Configuration FIG. 5 is a cross-sectional view showing a fourth configuration example of the noncombustible base material 2 shown in FIG. In the fourth configuration example, the nonflammable base material 2 includes an inorganic base material layer 51 containing an inorganic material, a first metal layer 52 provided on the one surface 51a side of the inorganic base material layer 51, and an inorganic base material. The second metal layer 54 provided on the other surface 21b side of the material layer 51 and the surface opposite to the surface of the first metal layer 52 facing the inorganic base material layer 51 (the upper surface in FIG. 5) are coated. The first coating film 53 that has been applied, and the second coating film 55 that has been applied to the surface (the lower surface in FIG. 5) opposite to the surface of the second metal layer 54 that faces the inorganic base material layer 51. With. The inorganic base material layer 51 is made of, for example, polyethylene and an inorganic material. The first metal layer 52 and the second metal layer 54 are made of, for example, aluminum, barium, stainless steel or titanium. The first coating film 53 and the second coating film 55 are made of, for example, acrylic, polyester or fluororesin.

(2) Decorative Sheet The decorative sheet 4 is a resin-based decorative sheet including a resin layer. Examples of the resin layer included in the decorative sheet 4 include polypropylene, polyethylene, polyester, polyvinyl chloride and the like. The resin layer included in the decorative sheet 4 may be a resin base material or a resin-based surface protective layer, as will be described later with reference to specific examples.
From the viewpoint of designability, the thickness of the decorative sheet 4 is preferably 0.05 mm or more and 0.1 mm or less. From the viewpoint of reducing heat generation, the decorative sheet 4 is preferably a polyester, polyvinyl chloride, or the like, or a composite decorative sheet of these and other resins.

(2.1) Specific Example As a specific example, the decorative sheet 4 includes a resin base material, a pattern layer (that is, a printing layer) formed on the resin base material, and a pattern formed on the resin base material. And a surface protection layer covering the layer. The thickness of the resin substrate depends on the application of the decorative sheet 4 and the type of resin, but is preferably about 20 μm to 100 μm, more preferably about 50 μm to 100 μm. Examples of the method for molding the base material include an extrusion molding method, an inflation molding method, a calender molding method, and a cast molding method.

In this embodiment, a paper base material may be used instead of the resin base material. As the paper base material, 20-50 g/m ² thin paper, inter-paper reinforcing paper, single-gloss kraft, or pure white roll can be used.
Examples of the resin binder of the ink for forming the pattern layer include cellulose derivatives such as nitrocellulose (including those in which a part of 0H groups of cellulose is covered), polyvinyl alcohol, polyvinyl butyral, and mixtures of these with isocyanate compounds. , Acrylic acid amide-acrylic acid ester copolymer and vinyl chloride-vinyl acetate copolymer can be used.

The method for forming the pattern layer is not particularly limited, and various printing methods such as a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, an electrostatic printing method and an ink jet printing method can be used. In addition, for example, in the case where the entire surface is solid, in addition to the various printing methods described above, for example, roll coating method, knife coating method, air knife coating method, die coating method, lip coating method, comma coating method, kiss coating method, flow coating method. It is also possible to use various coating methods such as the dip coating method. In addition, for example, a hand-drawing method, a black-wash method, a photography method, a laser beam or electron beam drawing method, a partial vapor deposition method of metal or the like, an etching method, or the like, or a combination of a plurality of these methods may be used.
There is no particular limitation on the type of pattern shown by the pattern layer, and it may be, for example, a wood grain pattern, a stone pattern, a cloth pattern, an abstract pattern, a geometric pattern, or a single color for the purpose of simple coloring or color adjustment. It may be plain. Any desired pattern can be adopted depending on the application of the decorative sheet 4.

As the surface protective layer, a polyester prepolymer having a hydroxyl group (—OH), an acrylic prepolymer, a polyether prepolymer, a polyol prepolymer such as a partially saponified ethylene-vinyl acetate copolymer, and an isocyanate compound are mixed and crosslinked and cured. It is possible to use a resin made of The thickness of the surface protective layer is preferably about 10 μm to 200 μm, more preferably within the range of about 10 μm to 100 μm. Examples of the method for molding the surface protective layer include an extrusion molding method, an inflation molding method, a calender molding method, and a cast molding method.
The surface protective layer needs to be transparent enough to allow the pattern layer therebelow to be seen through. Therefore, the surface protective layer is particularly preferably colorless and transparent, but may be colored and transparent or semitransparent. The term “transparent” refers to a degree of transparency that allows the back side to be visually recognized from the front side. The surface protective layer may contain a coloring agent or a filler as long as it has transparency.

(2.2) Weather-resistant prescription In this embodiment, as a weather-resistant prescription, a weather-resistant prescription additive (benzotriazole-based UV absorber, benzophenone-based UV absorber, triazine-based UV absorber, hindered amine) is added to a resin substrate. Light stabilizers, hindered phenolic antioxidants, etc.) may be appropriately added. These various additives may be used alone or in combination of two or more.
Examples of triazine-based compounds include 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[(hexyl)oxy]-phenol and 2-[4-[(2-hydroxy-3. -Dodecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[4-[(2-hydroxy-3-tri- Decyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4dimethylphenyl)-1,3,5-triazine, 2,4-bis(2,4-dimethylphenyl)-6- (2-Hydroxy-4-iso-octyloxyphenyl)-s-triazine and the like, and mixtures, modified products, polymers and derivatives thereof can be used. Further, as the benzophenone type, octabenzone and its modified products, polymers and derivatives can be used.

By adding the hindered amine light stabilizer, the deterioration of the resin itself due to light, heat, water, etc. can be prevented. The hindered amine light stabilizer may be added in an amount of 0.1% to 10%, preferably 1% to 5% based on the resin solid content, although it may be added depending on the desired weather resistance. As the hindered amine light stabilizer, bis(1,2,2,6,6-pentamethyl-4-piperidyl)[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl] is used. Butyl malonate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, methyl(1,2,2,6,6-pentamethyl-4-poperidinyl) sebacate, bis(2)decanedioate , 2,6,6-Tetramethyl-1(octyloxy)-4-piperidinyl) ester and the like, and mixtures, modified products, polymers and derivatives thereof can be used.

(2.3) Heat-shielding formulation In the present embodiment, as a heat-shielding formulation, the resin substrate may contain a pigment for increasing the reflectance of infrared light on the resin substrate. As the pigment to be contained in the resin base material, at least one of isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium oxide is used.
For example, by including 23 parts by mass or more of titanium oxide in the resin base material, the heat shield property can be improved. Alternatively, the titanium oxide layer may be provided by applying titanium oxide to the surface of the resin base material on which the pattern layer is formed. When the titanium oxide layer is provided, the total of the content of titanium oxide in the titanium oxide layer and the content of titanium oxide in the resin base material is 23 parts by mass or more based on the entire titanium oxide layer and the resin base material. If
When the amount of titanium oxide added to the resin base material increases, titanium oxide affects the film quality of the resin base material. Therefore, the preferable content of titanium oxide in the resin base material is 23 parts by mass or more and 50 parts by mass or less.

(2.4) Prescription of Designability In the present embodiment, as a prescription of designability, a pattern of irregularities may be provided on the surface of the decorative sheet 4 (for example, the surface of the surface protective layer). An example of the uneven pattern is a pattern formed by embossing (that is, an embossed pattern). The type of embossed pattern is not particularly limited, and may be various patterns such as wood grain (particularly conduit pattern), stone pattern, cloth pattern, Japanese paper pattern, geometric pattern pattern, or only simple pattern. It may be matte, grainy, hairline, or suede-like.

Further, it is possible to further improve the designability by synchronizing these embossed patterns with the pattern layer, but if it is not necessary, it may be non-synchronized, and does not synchronize with the pattern synchronized with the pattern layer. It is also possible to provide an embossing that includes both the pattern and the pattern.
The method for forming the embossed pattern is not particularly limited, but a mechanical embossing method using a metal embossing plate is general. In addition, there is no particular limitation on the time of forming the embossed pattern, and any time may be selected from before, simultaneously with, or after the surface protection layer is laminated on the substrate. Further, the embossed patterns having the same or different shapes may be formed plural times at plural times selected from each time.

(3) Moisture-Proof Sheet FIG. 6 is a cross-sectional view showing a configuration example of the moisture-proof sheet 6. As shown in FIG. 6, the moisture-proof sheet 6 includes a base material layer 11, a vapor deposition layer 12 made of an inorganic oxide provided on one surface side of the base material layer 11, and a main component provided on the vapor deposition layer 12. Is a polyvinyl alcohol, and an adhesion primer layer 14 provided on the resin layer 13. The other surface of the base material layer 11 is a surface (one surface) 6 a of the moisture-proof sheet 6 on the base material side.
The base material layer 11 is made of synthetic resin. Examples of the material of the base material layer 11 include olefin thermoplastic resins such as polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl alcohol copolymer, and mixtures thereof, polyethylene terephthalate (PET), poly Ester type thermoplastic resin such as butylene terephthalate, polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, polycarbonate, polyarylate, acrylic heat such as methyl polymethacrylate, ethyl polymethacrylate, butyl polyacrylate, etc. Examples thereof include plastic resins, and non-halogen thermoplastic resins such as polyimide, polyurethane, polystyrene, and acrylonitrile-butadiene-styrene resins.

The base material layer 11 serves as a base material on which the vapor-deposited layer 12 is provided on one surface, and is a biaxially stretched resin sheet for reasons such as high mechanical strength and excellent dimensional stability. It is preferable (however, in the present embodiment, the base material layer 11 is not limited to biaxial stretching and may be unstretched). For example, the base material layer 11 is made of biaxially stretched PET or unstretched PET. The thickness of the base material layer 11 is, for example, in the range of 9 to 100 μm. The base material layer 11 is colorless and transparent or colored and transparent.
Further, as shown in FIG. 6, a surface wettability modification portion 15 may be provided on the other surface of the base material layer 11. The surface wettability modification portion 15 is formed by a physical surface modification treatment such as reactive etching treatment. The presence of the surface wettability modified portion 15 on the other surface of the base material layer 11 can enhance the adhesiveness between the non-combustible base material 2 and the moisture-proof sheet 6 (see FIG. 1 ).

The moisture-proof sheet 6 has a transparency that allows the one surface 6a side to be seen through from the other surface 6b side. The moisture-proof sheet 6 may be colorless and transparent or colored and transparent. The term “transparent” refers to a degree of transparency that allows the back side to be visually recognized from the front side.
Moreover, the water vapor permeability of the entire moisture-proof sheet 6 is 1.0 g/m ² ·day or less. Further, the moisture-proof sheet 6 preferably has an oxygen permeability of 1.0 g/m ² ·day or less as a whole.
The moisture-proof sheet 6 may be thermoplastic. That is, the moisture-proof sheet 6 may be a thermoplastic resin-based moisture-proof sheet. Next, each layer shown in FIG. 6 will be described more specifically.

(3.1) Base Material Layer As the material of the base material layer 11, an olefin thermoplastic resin such as polyethylene, polypropylene, an ethylene-propylene copolymer, an ethylene-vinyl alcohol copolymer, or a mixture thereof, or polyethylene. Ester thermoplastic resins such as terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, polycarbonate, polyarylate, methyl polymethacrylate, ethyl polymethacrylate, butyl polyacrylate, etc. Examples thereof include acrylic thermoplastic resins, and non-halogen thermoplastic resins such as polyimide, polyurethane, polystyrene, and acrylonitrile-butadiene-styrene resins.

Each of the above materials can be used for the base material layer 11, and polyethylene terephthalate (PET) can be mentioned as a more preferable material among them. This is because the second adhesive layer 5 that adheres the base material layer 11 and the noncombustible base material 2 contains an ethylene-vinyl acetate copolymer resin (EVA) having a urethane bond. PET has good adhesive compatibility with an EVA-based adhesive having a urethane bond.
The base material layer 11 serves as a base material on which the vapor deposition layer 12 described later is provided on one surface, and is a biaxially stretched resin sheet because of its high mechanical strength and excellent dimensional stability. It is preferable (however, in the present embodiment, the base material layer 11 is not limited to biaxial stretching, and may be unstretched). Further, the base material layer 11 includes, for example, polyethylene terephthalate (PET). For example, the base material layer 11 is made of biaxially stretched polyethylene terephthalate or unstretched polyethylene terephthalate. The thickness of the base material layer 11 is, for example, in the range of 9 to 100 μm. The base material layer 11 is colorless and transparent or colored and transparent.

On the other surface (for example, the back surface) of the base material layer 11, a surface wettability modified portion 15 whose surface wettability is modified is provided. The surface wettability modification portion 15 is formed by modifying the surface wettability by making the surface a rough surface at a nano level by a physical treatment such as a reactive etching treatment or a corona treatment. As the modification treatment, reactive etching treatment is preferable to corona treatment. The reason is that it has been confirmed that the reactive etching treatment has a higher maintainability of the adhesive strength over time than the corona treatment.

(3.2) Vapor Deposition Layer The vapor deposition layer 12 is made of a thin film of an inorganic oxide such as silicon oxide, magnesium oxide or aluminum oxide. Here, a metal thin film typified by aluminum has a metallic luster, but a thin film of an inorganic oxide is a transparent vapor deposition film.
The optimum thickness of the vapor-deposited layer 12 varies depending on the type and composition of the inorganic oxide used, but is generally in the range of 5 to 300 nm, and its value is appropriately selected. However, if the film thickness of the inorganic oxide is less than 5 nm, a uniform film may not be obtained or the film thickness may not be sufficient, and the function as the moisture-proof sheet may not be sufficiently fulfilled. When the thickness of the inorganic oxide exceeds 300 nm, the flexibility cannot be maintained due to the residual stress of the thin film, and the thin film may be cracked due to external factors after the film formation. Therefore, the thickness of the vapor deposition layer 12 is more preferably in the range of 10 to 150 nm.

As a method for laminating the vapor deposition layer 12 on the base material layer 11, a vacuum vapor deposition method, a sputtering method, an ion plating method, a plasma vapor deposition method (CVD) or the like can be used. However, the vacuum deposition method is the best in terms of productivity. It is preferable to use any one of an electron beam heating method, a resistance heating method, and an induction heating method as the heating means of the vacuum evaporation method, but in consideration of the wide range of selectivity of the evaporation material, the electron beam heating method or the resistance heating method is used. It is more preferable to use the method. Further, in order to improve the adhesion between the vapor deposition layer 12 and the base material layer 11 and the denseness of the vapor deposition layer 12, the vapor deposition layer 12 can be vapor deposited using a plasma assist method or an ion beam assist method. .. Further, in order to enhance the transparency of the vapor deposition layer 12, reactive vapor deposition in which various gases such as oxygen are blown may be used during vapor deposition.

(3.3) Resin Layer The resin layer 13 contains polyvinyl alcohol as a main component. The main component is a component that occupies a high proportion in the whole substance, and refers to, for example, 70 parts by mass or more when the whole is 100 parts by mass. The resin layer 13 may be a composition containing polyvinyl alcohol and an inorganic oxide. The resin layer 13 is provided to protect the vapor deposition layer 12 and improve the gas barrier property of the vapor deposition layer 12.
For the resin layer 13, for example, polyvinyl alcohol or a composition obtained by adding an inorganic oxide such as silicon oxide, magnesium oxide, or aluminum oxide to polyvinyl alcohol is applied onto the vapor deposition layer 12 by a roll coating method, a gravure coating method, or the like. Formed by that. The resin layer 13 is colorless and transparent or colored and transparent.

(3.4) Adhesion Primer Layer The adhesion primer layer 14 is provided to improve the adhesion to the core material described later. Specific examples of the adhesion primer layer 14 include ester resin, urethane resin, acrylic resin, polycarbonate resin, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral resin, and nitrocellulose resin. The adhesive primer layer 14 can be formed by using an appropriate coating means such as a roll coating method or a gravure printing method by using these resins alone or as a mixture to form an adhesive composition.

It is particularly preferable that the primer forming the adhesion primer layer 14 is formed of a resin composed of a copolymer of acrylic resin and urethane resin and isocyanate. That is, a copolymer of an acrylic resin and a urethane resin contains an acrylic polymer component having a hydroxyl group at the terminal (component A), a polyester polyol component having a hydroxyl group at both ends (component B), and a diisocyanate component (component C). It is obtained by reacting to form a prepolymer, and further adding a chain extender (component D) such as diamine to the prepolymer to extend the chain. By this reaction, polyester urethane is formed and at the same time, the acrylic polymer component is introduced into the molecule to form an acrylic-polyester urethane copolymer having a hydroxyl group at the terminal. The primer forming the adhesion primer layer 14 is formed by reacting the terminal hydroxyl group of the acrylic-polyester urethane copolymer with isocyanate to cure it.

As the component A, a linear acrylic acid ester polymer having a hydroxyl group at the terminal is used. Specifically, linear polymethylmethacrylate (PMMA) having a hydroxyl group at the terminal is preferable because it has excellent weather resistance (particularly characteristics against photodegradation) and can be easily copolymerized with urethane to be compatibilized. .. Component A is an acrylic resin component in the copolymer, and those having a molecular weight of 5,000 to 7,000 (weight average molecular weight) are preferably used because they have particularly good weather resistance and adhesiveness. Further, as the component A, only those having a hydroxyl group at both ends may be used, but those having a conjugated double bond at one end may be mixed with the above-mentioned one having a hydroxyl group at both ends and used. Good.

Component B reacts with diisocyanate to form polyester urethane and constitutes a urethane resin component in the copolymer. As the component B, a polyester diol having hydroxyl groups at both ends is used. The polyester diol includes an addition reaction product of a diol compound having an aromatic or spiro ring skeleton and a lactone compound or its derivative, or an epoxy compound, a condensation product of a dibasic acid and a diol, and a cyclic ester compound. Examples thereof include polyester compounds that are derived. Examples of the diol include short-chain diols such as ethylene glycol, propylene glycol, diethylene glycol, butanediol, hexanediol, and methylpentenediol, and alicyclic short-chain diols such as 1,4-cyclohexanedimethanol. .. Examples of the basic acid include adipic acid, phthalic acid, isophthalic acid, terephthalic acid and the like. The polyester polyol is preferably adipic acid or a mixture of adipic acid and terephthalic acid as the acid component, particularly adipic acid, and an adipate system using 3-methylpentenediol and 1,4-cyclohexanedimethanol as the diol component. It is polyester.

The urethane resin component formed by the reaction between the component B and the component C imparts flexibility to the adhesion primer layer 14 and contributes to the improvement of adhesion. The acrylic resin component made of an acrylic polymer contributes to the weather resistance and blocking resistance of the adhesion primer layer 14. In the urethane resin, the molecular weight of the component B may be within the range in which the urethane resin capable of exhibiting sufficient flexibility can be obtained in the adhesion primer layer 14, and it may be adipic acid or a mixture of adipic acid and terephthalic acid. In the case of a polyester diol composed of -methylpentanediol and 1,4-cyclohexanedimethanol, 500 to 5000 (weight average molecular weight) is preferable.

As the component C, an aliphatic or alicyclic diisocyanate compound having two isocyanate groups in one molecule is used. Examples of the diisocyanate include tetramethylene diisocyanate, 2,2,4(2,4,4)-1,6-hexamethylene diisocyanate, isophorone diisocyanate, 4,4′-dicyclohexylmethane diisocyanate, 1,4′-cyclohexyl. Examples thereof include diisocyanate. As the diisocyanate component, isophorone diisocyanate is preferable because of its excellent physical properties and cost. When reacting the components A to C, the equivalent ratio of the total amount of hydroxyl groups (which may be amino groups) of the acrylic polymer, the polyester polyol and the chain extender described below to the isocyanate group is adjusted so that the isocyanate groups become excessive. ..

When the three components A, B, and C are reacted at 60 to 120° C. for about 2 to 10 hours, the isocyanate group of the diisocyanate reacts with the hydroxyl group at the polyester polyol end to form a polyester urethane resin component, and at the same time, the acrylic polymer end A compound obtained by adding diisocyanate to a hydroxyl group is also mixed, and a prepolymer in a state where excess isocyanate groups and hydroxyl groups remain is formed. As a chain extender to this prepolymer, for example, diamines such as isophoronediamine and hexamethylenediamine are added to react an isocyanate group with the chain extender, and the acrylic polymer component is introduced into the molecule of polyester urethane by chain extension. Thus, the acrylic-polyester urethane copolymer (I) having a hydroxyl group at the terminal can be obtained.

Well-known coating methods such as a gravure coating method and a roll coating method, in which an isocyanate is added to an acrylic-polyester urethane copolymer to obtain a coating solution in which the viscosity is adjusted in consideration of the coating method and the coating amount after drying. The primer layer 14 for adhesion may be formed by applying. Further, as the isocyanate, any isocyanate capable of reacting with the hydroxyl group of the acrylic-polyester urethane copolymer to be crosslinked and cured, for example, divalent or higher aliphatic or aromatic isocyanate can be used, Aliphatic isocyanates are preferred from the viewpoints of discoloration prevention and weather resistance. Specifically, tolylene diisocyanate, xylylene diisocyanate, 4,4′-dicyclohexylmethane diisocyanate, hexamethylene diisocyanate, lysine diisocyanate monomer, or a dimer or trimer of these monomers, or Examples thereof include polyisocyanates such as derivatives (adducts) obtained by adding these isocyanates to polyols.
The coating amount after drying of adhesive primer layer 14, a from 1 to 20 g / ^{m 2,} preferably from 1 to 5 g / ^{m 2.} Further, the adhesion primer layer 14 may be a layer to which a filler such as silica powder, an additive such as a light stabilizer and a colorant is added, if necessary.

(4) First Adhesive Layer The first adhesive layer 3 is a sheet-shaped layer made of an adhesive. The type of adhesive contained in the first adhesive layer 3 is not particularly limited, but any type of adhesive such as a thermoplastic resin type, a thermosetting resin type, or a rubber (elastomer) type adhesive may be included. Good. Known materials or commercially available products can be appropriately selected and used. Examples of the thermoplastic resin adhesive include polyvinyl acetate resin, polyvinyl alcohol, polyvinyl acetal (polyvinyl formal, polyvinyl butyral, etc.), cyanoacrylate, polyvinyl alkyl ether, polyvinyl chloride, polyamide, polymethyl methacrylate, nitrocellulose. , Cellulose acetate, thermoplastic epoxy, polystyrene, ethylene-vinyl acetate copolymer resin (EVA), ethylene-ethyl acrylate copolymer resin and the like. Further, as the thermosetting resin-based adhesive, urea resin, melamine resin, phenol resin, resorcinol resin, furan resin, epoxy resin, unsaturated polyester resin, polyurethane resin, polyimide resin, polyamideimide, polybenzimidazole, polybenzo Examples thereof include thiazole. Rubber adhesives include natural rubber, recycled rubber, styrene-butadiene rubber, acrylonitrile-butadiene rubber, chloroprene rubber, butyl rubber, polysulfide rubber, silicone rubber, polyurethane rubber, stereo rubber (synthetic natural rubber), ethylene propylene rubber, block Examples thereof include copolymer rubber (SBS, SIS, SEBS, etc.).
As an example, the first adhesive layer 3 contains 95.7 parts by mass of an ethylene-vinyl acetate copolymer resin and 4.3 parts by mass of an organic curing agent (isocyanate system) in a mass ratio. In this case, the mass of the first adhesive layer 3 per square meter is 11.9 g/m ² or more and 17.8 g/m ² or less (solid amount) (organic mass 11.9 g/m ² or more and 17.8 g/m). ² or less).

(5) Second adhesive layer The second adhesive layer 5 is a sheet-shaped layer made of an adhesive. The kind of the adhesive contained in the second adhesive layer 5 is not particularly limited, but any of the thermoplastic resin type, thermosetting resin type, rubber (elastomer) type, etc. can be used similarly to the first adhesive layer 3. A type of adhesive may be included. Specific examples of the thermoplastic resin adhesive, the thermosetting resin adhesive, and the rubber adhesive are as described above.
Alternatively, the second adhesive layer 5 may include an ethylene-vinyl acetate copolymer resin (EVA) having a urethane bond, or may be an EVA adhesive layer having a urethane bond as a main component. Here, the main component means a component that accounts for a high proportion in the whole substance, and for example, refers to a case where the total amount is 100 parts by mass or more and 70 parts by mass or more.
For example, the second adhesive layer 5 contains 100 parts by mass of vinyl acetate resin. In this case, the mass per square meter of the second adhesive layer 5, 26.7 g / ^{m 2} or more 32.7 g / ^{m 2} or less (solid content) (organic mass 26.7 g / ^{m 2} or more 32.7 g / m ² or less) is preferable. In the present embodiment, the mass of the second adhesive layer 5 per square meter is 29.7 g/m ² .

<joint>
FIG. 7: is sectional drawing which shows the structural example of the fitting 10 which concerns on embodiment of this invention. As shown in FIG. 7, the fitting 10 includes the above-described noncombustible moisture-proof decorative plate 1 and the core material 9. Then, the moisture-proof sheet 6 side of the nonflammable moisture-proof decorative plate 1 is attached to at least one surface side of the core material 9. For example, the incombustible moisture-proof decorative plate 1 is attached to one surface 20a and the other surface 20b of the core material 9, respectively.
The non-combustible moisture-proof decorative board 1 and the fitting 10 using the non-combustible moisture-proof decorative board 1 can be used, for example, in a building such as a house, as an interior such as a floor surface or a wall surface, or as furniture. Can also be used in non-combustible doors, fireproof doors, and other places where non-combustibility is required.

<Effects of the embodiment>
According to the embodiment of the present invention, the non-combustible moisture-proof decorative board 1 has a non-combustible base material 2 whose main component is an inorganic material. The non-combustible base material 2 can take the first to fourth configuration examples as shown in FIGS. 2 to 5, for example. This makes it possible to improve the noncombustibility of the noncombustible moisture-proof decorative board.
For example, in an exothermic test with a corn calorie combustion tester based on ISO5660-1,
(1) The total calorific value for 20 minutes after the start of heating is 8 MJ/m ² or less,
(2) For 20 minutes after the start of heating, the maximum heat generation rate does not exceed 200 kW/m ² for 10 seconds or more,
(3) There are no cracks or holes harmful to fire protection for 20 minutes after starting heating.
It becomes possible to more reliably satisfy the incombustibility that satisfies the conditions.

Further, according to the embodiment of the present invention, one surface of the nonflammable moisture-proof decorative board 1 is covered with the decorative sheet 4. Thereby, the movement of water between the outside world and the non-combustible base material 2 can be suppressed. The other surface of the non-combustible moisture-proof decorative plate 1 is covered with a moisture-proof sheet 6. Thereby, the movement of water between the core material 9 and the non-combustible base material 2 can be suppressed, and the non-combustible base material 2 can suppress moisture absorption and desorption from the front and back sides thereof. It is possible to suppress expansion or contraction due to moisture absorption and desorption. That is, the moisture resistance of the nonflammable moisture-proof decorative board 1 can be made more excellent.

From the above, it is possible to provide a non-combustible moisture-proof decorative board and a fitting in which both non-combustibility and moisture resistance can be achieved.
Further, according to the embodiment of the present invention, the surface wettability modification portion 15 is provided on the surface (one surface) 6 a of the moisture-proof sheet 6 on the substrate side. A second adhesive layer 5 is provided between the one surface 6a and the noncombustible base material 2. As a result, the adhesiveness between the non-combustible base material 2 and the moisture-proof sheet 6 can be enhanced. For example, even when the non-combustible moisture-proof decorative board 1 is placed in an environment where there are large changes in temperature and humidity, The adhesiveness between the material 2 and the moisture-proof sheet 6 can be maintained high.
From the above, it is possible to further prevent the noncombustible moisture-proof decorative plate from being deformed (warp or dimensional change) due to temperature or humidity.

<Modification>
In the present embodiment, the makeup sheet 4 may have a configuration as shown in FIG.
FIG. 8 is a cross-sectional view showing an example of the decorative sheet 4. In the decorative sheet 4 shown in FIG. 8, the weather resistant resin layer 64 and the fluororesin layer 65 are laminated in this order on one surface side of the base material layer 61. The non-combustible base material 2 is attached to the other surface side of the base material layer 61 in the decorative sheet 4 via the first adhesive layer 3 shown in FIG. May be. Even with such a configuration, the effects of the above-described embodiment can be obtained. In addition, the decorative sheet 4 can have weather resistance, stain resistance, and solvent resistance by having the weather resistant resin layer 64 and the fluororesin layer 65 on one surface side of the base material layer 61.
Specific examples of the base material layer 61, the weather resistant resin layer 64, and the fluororesin layer 65 are as follows.

(1) Base Material Layer The base material layer 61 is a sheet-shaped layer made of a thermoplastic resin. The thermoplastic resin is not particularly limited, and known thermoplastic resins can be used. Examples of the thermoplastic resin include polyolefin resins such as polyethylene, polypropylene, polybutene, and polymethylpentene, ethylene-vinyl acetate copolymers or saponified products thereof, ethylene-(meth)acrylic acid (ester) copolymers, and the like. Polyolefin copolymer, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyarylate, polycarbonate, copolyester (typically PET-G which is 1,4-cyclohexanedimethanol copolymer polyethylene terephthalate resin), etc. Polyester resin, acrylic resin such as polymethylmethacrylate, polyamide resin such as 6-nylon, 6,6-nylon, 6,10-nylon and 12-nylon, styrene such as polystyrene, AS resin and ABS resin Resins, cellulose acetate, fibrin derivatives such as nitrocellulose, chlorine-based resins such as polyvinyl chloride and polyvinylidene chloride, polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, etc. Examples thereof include fluororesins. Then, the base material layer 61 may be formed by using one kind of such a thermoplastic resin, or two or more kinds of copolymers, mixtures, composites, laminates and the like selected from these. it can. A flame retardant or an ultraviolet absorber may be mixed in the base material layer 61 to maintain flame retardancy or anti-fading property.

(2) Weatherproof Resin Layer The weatherproof resin layer 64 is a thermoplastic resin layer and is a sheet-like layer made of a mixture of acrylic resin and acrylic resin rubber. The weather resistant resin layer 64 may be composed of two or more layers. The acrylic resin is not particularly limited, and a known acrylic resin can be used. For example, a methyl methacrylate resin or a polymethyl methacrylate resin (Tg is about -20°C) can be used. Examples of the acrylic resin rubber include polymethylmethacrylate resin rubber. Further, a known ultraviolet absorber or light stabilizer may be added to the acrylic resin.

(3) Fluororesin Layer The fluororesin layer 65 is a thermoplastic resin layer and is a sheet-like layer made of fluororesin. The fluororesin layer 65 imparts surface properties such as acid resistance, alkali resistance, solvent resistance and stain resistance to the decorative sheet 4. The fluororesin is not particularly limited, and known fluororesins can be used.
The fluororesin layer 65 made of fluororesin may be provided on the weather resistant resin layer 64 by coating. Alternatively, the fluororesin layer 65 is made of polyvinyl fluoride resin (PVF), ethylene-tetrafluoroethylene copolymer (ETFE), polyvinylidene fluoride (PVDF), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetra It may be a fluororesin film such as a fluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA). A fluororesin layer 65 may be formed by laminating this kind of fluororesin film on the weather resistant resin layer. In particular, ethylene-tetrafluoroethylene copolymer (ETFE) and tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), which are excellent in melt moldability and stain resistance, can be preferably used as the fluororesin layer 65.

The decorative sheet 4 shown in FIG. 8 has a picture pattern layer 62 between the base material layer 61 and the weather resistant resin layer 64, and the picture pattern layer 62 and the weather resistant resin layer 64 are bonded by the adhesive layer 63. This is an example of the case. The pattern layer 62 and the adhesive layer 63 may be omitted. When the decorative sheet 4 has the picture pattern layer 62, the adhesive layer 63, the weather resistant resin layer 64, and the fluororesin layer 65 are preferably transparent so that the picture of the picture pattern layer 62 can be visually recognized.

Next, the present invention will be described in more detail with reference to the following examples.
<Example>
First, the moisture-proof sheet 6 was produced. Here, as the base material layer 11, a transparent biaxially stretched polyethylene terephthalate (PET) film having a thickness of 12 μm was used. The vapor deposition layer 12 was provided on one surface (for example, the surface) of the base material layer 11. The vapor deposition layer 12 was formed of aluminum oxide so as to have a thickness of 150 nm. A vacuum vapor deposition method was used as a method of forming the vapor deposition layer 12, and an electron beam heating method was used as a heating means of the vacuum vapor deposition method. At that time, a plasma assist method was used to improve the adhesion between the vapor deposition layer 12 and the base material layer 11, and oxygen vapor was blown to enhance the transparency of the vapor deposition layer 12 to perform reactive vapor deposition. As a result, the moisture-proof sheet 6 for building materials is prepared which has a moisture vapor transmission rate of 1.0 g/m ² ·day or less of the moisture-proof sheet and has transparency that allows the back side of the moisture-proof sheet to be seen through. It becomes possible.

Next, a polyvinyl alcohol solution was applied onto the vapor-deposited layer 12 by a gravure printing method so as to have a weight of 0.5 g/m ² after being dried, so that a resin layer 13 was provided. Further, the other surface (for example, the back surface) of the base material layer 11 was subjected to reactive etching treatment to form the surface wettability modified portion 15. At this time, a high frequency power source having a frequency of 13.56 MHz was used for the electrodes, the self-bias value was set to 450 V, and the Ed value was set to 210 W·m ² ·sec. Next, a urethane resin/vinyl acetate resin as a main component and a two-component curable resin to which isocyanate was added as a curing agent were prepared. The two-component curable resin was applied to the surface of the resin layer 13 by a gravure printing method so as to have a solid content of 1 g/m ² to provide an adhesion primer layer 14. Thus, the moisture-proof sheet 6 was obtained.

Moreover, the decorative sheet 4 was produced. Here, a pattern layer is printed with a nitrocellulose ink (manufactured by Toyo Ink Mfg. Co., Ltd.) on the surface of an inter-paper reinforcing paper (manufactured by Tenma Special Paper Co., Ltd.) having a basis weight of 30 g/m ^{2 and} the pattern is printed. Acrylic urethane resin (two-component curing type, manufactured by Toyo Ink Mfg. Co., Ltd.) was applied on the layer in a solid content of 6 g/m ² to form a resin-based surface protection layer. As described above, the decorative sheet 4 was obtained.
Next, the moisture-proof sheet 6 and the decorative sheet 4 produced by the above method were attached to both surfaces of the non-combustible base material 2 to produce the non-combustible moisture-proof decorative sheet 1. Here, the moisture-proof sheet 6 and the decorative sheet 4 produced by the above method, the noncombustible base material 2 having a thickness of 6 mm as the noncombustible base material 2, and the vinyl acetate emulsion adhesive used as the material of the first adhesive layer 3. An agent and a vinyl acetate emulsion adhesive which is a material of the second adhesive layer 5 were prepared. Here, as the non-combustible base material 2, a base material similar to the non-combustible base material (first configuration example) shown in FIG. 2 was prepared.

Next, a vinyl acetate emulsion adhesive was applied to one surface 2a of the non-combustible base material 2, and the back surface of the inter-paper reinforced paper of the decorative sheet 4 was attached thereto. Further, a vinyl acetate emulsion adhesive was applied to the other surface 2b of the non-combustible base material 2, and the back surface of the base material layer of the moisture-proof sheet 6 was attached thereto. In this way, the nonflammable moistureproof decorative board 1 was obtained.
Then, the non-combustible moisture-proof decorative board 1 produced by the above method was attached to both surfaces of the core material 9 to produce a fitting 10. Here, two nonflammable moisture-proof decorative boards 1 produced by the above method, a wooden core material 9, and a vinyl acetate emulsion adhesive were prepared. A vinyl acetate emulsion adhesive was applied to one surface 9a of the core material 9, and the first non-combustible moisture-proof decorative board 1 was attached thereto. Further, a vinyl acetate emulsion adhesive was applied to the other surface 9b of the core material 9, and the second non-combustible moisture-proof decorative board 1 was attached thereto. The fitting 10 was obtained by the above.
The non-combustible moisture-proof decorative board 1 and the fitting 10 produced in the examples can be used, for example, in a building such as a house, as an interior such as a floor surface or a wall surface, or as furniture, and in particular, a non-combustible door, a fire door, etc. It can also be used in places where nonflammability is required.

<Comparative example>
In the comparative example, a wood base material was used instead of the non-combustible base material 2. The wood base material is a medium density fiberboard (MDF) having a thickness of 6 mm. Other than this, a moisture-proof decorative board was obtained by the same method as in the example.
<Evaluation of non-combustibility>
The non-combustible moisture-proof decorative board 1 according to the example and the moisture-proof decorative board according to the comparative example produced as described above were evaluated for non-combustibility as follows.
In accordance with ISO5660-1, a heat generation test was conducted with a cone calorimeter tester according to the fireproof test method and performance evaluation standard based on the Building Standard Act Article 2-9 and the Building Standard Act Construction Order Article 108-2. .. The gross calorific value of the heating starting after 20 min (MJ / ^{m 2)} is at 8 MJ / ^{m 2} or less, the maximum heat release rate of the start of heating after 20 minutes, not exceed 200 kW / ^{m 2} to continue for 10 seconds or more If it passed, it was judged as "○". However, the substrate was also evaluated for cracks, and the condition was that the substrate had no cracks or holes. The evaluation results are shown in Table 1.
As shown in Table 1, it was confirmed that the nonflammable moisture-proof decorative board 1 according to the example had a nonflammability evaluation result of "Pass", which was a satisfactory satisfaction.

DESCRIPTION OF SYMBOLS 1 Non-combustible moisture-proof decorative board 2 Non-combustible base material 3 1st adhesive layer 4 Decorative sheet 5 2nd adhesive layer 6 Moisture-proof sheet 9 Core material 10 Joinery 11 Base material layer 12 Deposition layer 13 Resin layer 14 Adhesive primer layer 15 Surface wettability modification part 21 Inorganic base material layer 22 Surface layer 31 Putty layer 32 First sealer layer 33 Magnesium oxide glass plate 34 Second sealer layers 41, 43 Double-sided part 42 Base material main body 51 Inorganic base material layer 52 First metal layer 53 First coating film 54 Second metal layer 55 Second coating film 61 Base material layer 62 Base pattern layer 63 Adhesive layer 64 Weatherproof resin layer 65 Fluororesin layer 211 Lower layer 212 Upper layer 221 Adhesive layer 222 226 Paper layer 223, 225 Resin layer 224 Metal layer

Claims (12)

A non-combustible base material containing an inorganic material as a main component,
A decorative sheet provided on one surface side of the noncombustible substrate,
A moisture-proof sheet provided on the other surface side of the non-combustible substrate,
The non-combustible substrate,
A glass magnesium oxide plate having a net-like glass fiber as a matrix and magnesium oxide as a main component,
Wherein each provided on the decorative sheet side surface and a surface of said moistureproof sheet side of the glass magnesium oxide plate, have a, a sealer layer made of a urethane-based resin,
Further comprising a putty layer provided between the decorative sheet and the sealer layer provided on the decorative sheet side,
The putty layer, incombustible moisture decorative plate, wherein the layer der Rukoto containing calcium carbonate. The non-combustible moisture-proof decorative board according to claim 1 , wherein the putty layer is a layer further containing a urethane resin. A non-combustible base material containing an inorganic material as a main component,
A decorative sheet provided on one surface side of the noncombustible substrate,
A moisture-proof sheet provided on the other surface side of the non-combustible substrate,
The non-combustible substrate,
A glass magnesium oxide plate having a net-like glass fiber as a matrix and magnesium oxide as a main component,
Wherein each provided on the decorative sheet side surface and a surface of said moistureproof sheet side of the glass magnesium oxide plate, have a, a sealer layer made of a urethane-based resin,
The solid amount of the sealer layer provided on the surface of the glass magnesium oxide plate on the decorative sheet side is larger than the solid amount of the sealer layer provided on the surface of the glass magnesium oxide plate on the moisture-proof sheet side. Non-combustible moisture-proof decorative board characterized by. A non-combustible base material containing an inorganic material as a main component,
A decorative sheet provided on one surface side of the noncombustible substrate,
A moisture-proof sheet provided on the other surface side of the non-combustible substrate,
The non-combustible substrate has a gypsum board mixed with glass fibers,
The plaster board is
Base material body,
Having a double-sided portion respectively provided on the surface of the base material body on the decorative sheet side and the surface of the moisture-proof sheet side,
The base material main body contains glass fiber within a range of 0.1 parts by mass or more and 0.5 parts by mass or less with respect to 100 parts by mass of gypsum.
The non-combustible moisture-proof decorative board is characterized in that the double-sided part contains 80 parts by mass or more of a glass fiber nonwoven fabric with respect to the total mass of the double-sided part. The non-combustible moisture-proof decorative board according to claim 4 , wherein the both surface portions include an acrylic resin-based binder. The moisture on the surface of the incombustible base material side of the sheet, any one of claim 1, characterized in that the surface wettability modification unit surface wettability modified is provided according to claim 5 one The nonflammable moisture-proof decorative board according to the item. The decorative sheet is characterized by containing at least one or more of a benzotriazole-based UV absorber, a benzophenone-based UV absorber, a triazine-based UV absorber, a hindered amine-based light stabilizer, and a hindered phenol-based antioxidant. The non-flammable moisture-proof decorative board according to any one of claims 1 to 6 . The non-combustible moisture-proof decorative board according to any one of claims 1 to 7 , wherein a pattern of irregularities is provided on the surface of the decorative sheet. The moisture-proof sheet,
A base material layer containing polyethylene terephthalate,
A vapor deposition layer containing an inorganic oxide provided on one surface side of the base material layer,
A resin layer containing polyvinyl alcohol provided on the vapor deposition layer,
An adhesive primer layer provided on the resin layer, and
The non-combustible moisture-proof decorative board according to any one of claims 1 to 8 , wherein the other surface of the base material layer is a surface on the non-combustible base material side. The moisture-proof sheet is incombustible moisture veneer according to any one of claims 1 to 9, characterized in that the thermoplastic. The moisture vapor transmission rate of the moisture-proof sheet is 1.0 g/m ² ·day or less, and
The moisture-proof sheet, incombustible moisture cosmetic according to any one of claims 1 0 to claim 1, characterized in that it comprises a-proof moisture one possible transparency perspective the other side from the side of the seat Board. A non-combustible moisture-proof decorative plate according to any one of claims 1 to 11,
With a core material,
The fitting, wherein the noncombustible moisture-proof decorative plate is attached to at least one surface side of the core material.

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