JP2577193B2 - Heat resistant decorative board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant decorative plate, and more particularly, to a table, counter or kitchen equipment top plate having excellent heat resistance, high strength, high surface hardness, and beautiful appearance. The present invention relates to a heat-resistant decorative board used.

[0002]

2. Description of the Related Art A conventional heat-resistant decorative board is disclosed in
No. 0-31012 (method for producing flame-retardant decorative plywood),
JP-A-61-102943 (new noncombustible building materials) and JP-A-2-175240 (decorative materials used for furniture)
And the like are known, in which heat resistance is imparted by sticking an aluminum foil to a wood-based substrate such as plywood.

[0003] The flame-retardant decorative plywood described in Japanese Patent Application Laid-Open No. Sho 50-31012 is characterized in that the decorative material is firmly adhered by inserting a sheet made of aluminum foil and paper between the base material and the decorative material. The new non-combustible building material described in Japanese Patent Application Laid-Open No. 61-102943 is provided with an aluminum foil on a base such as a plywood, and further has a printed paper thereon. And the like, as disclosed in
In JP-A-11-102943, there is a description that another sheet of paper is stuck on an aluminum foil when the surface of a printed paper or the like is stained by the adhesive when the aluminum foil is attacked by the adhesive. Both of these two decorative plywoods and the like are mainly used as wall materials for building interiors, and have a main purpose of being difficult to ignite even when exposed to a flame in an early stage of a fire. Further, the decorative board described in Japanese Patent Application Laid-Open No. 2-175240 discloses a resin layer or the like provided on the surface of a substrate with an aluminum foil interposed therebetween.
Further, a UV coating layer is provided on the surface thereof, and its main purpose is to impart beautiful appearance and heat resistance.

[0004]

However, Japanese Patent Application Laid-Open No.
The decorative plywood and the like described in Japanese Patent Publication No. 0-31012 and Japanese Patent Application Laid-Open No. 61-102943 are mainly used for wall surfaces and therefore do not require much strength and hardness. In such places where strength and hardness are required for horizontal use, there is a problem that the surface is too weak to withstand use. In addition to the hardness of the tabletop surface of the table or counter, it is desirable to have a thick decorative material and a coating film in terms of aesthetics, but the above-mentioned decorative plywood and the like are intended for flame retardancy at the beginning of a fire. Therefore, the surface is not provided with a thick decorative material and a coating film that is easily combustible organic combustible material,
They were not suitable for tables and countertops.

[0005] The non-combustible new building material described in Japanese Patent Application Laid-Open No. 61-102943 does not contain a paper-strength enhancer, and peels off from a paper layer or between an aluminum foil and a substrate. There is a risk of occurring. Also,
Japanese Patent Application Laid-Open No. 50-31012 discloses a decorative plywood in which an aluminum foil on which paper made of wood pulp formed by adding a paper strength enhancer is adhered on one side is applied to a surface on which the paper is not adhered. A base material is adhered, and a decorative material is adhered to a surface on which paper is adhered, and JP-A-50-31012 discloses that
It is described that when the aluminum foil and the decorative material are adhered via the paper made of pulp as described above, the decorative material and the aluminum foil are firmly adhered. However, in this case, the adhesive force between the decorative material and the aluminum foil cannot be more than the entanglement of the fibers of the paper, and the paper is only adhered to one side, and the other side is the aluminum foil. As it is, the poor adhesion between the aluminum foil and the base material has not yet been resolved, and when this decorative plywood is also cut at a construction site or the like, a paper layer or between the aluminum foil and the base material is not removed. There was a risk of peeling.

The paper made of wood pulp in the decorative plywood described in the above-mentioned Japanese Patent Application Laid-Open No. Sho 50-31012 is composed of wood cells having a hollow portion containing air, and the structure of the paper itself is also pulp. It has a hollow portion for fiber entanglement and contains a lot of air with extremely poor thermal conductivity. For this reason, the decorative plywood described in Japanese Patent Application Laid-Open No. Sho 50-31012 is disadvantageous in that heat from the outside is transmitted to the aluminum foil as a radiator, and cannot provide a sufficient heat resistance effect. It was something with.

[0007] In the decorative plate described in JP-A-2-175240, since a UV coating layer is provided on a resin layer or the like, it is considered that a thick coating film and a sufficient aesthetic appearance can be obtained. However, it is a well-known fact that the wood base material such as MDF and the resin layer are bonded via the aluminum foil, and it is very difficult to bond the aluminum foil and the porous wood base material. It is. Generally, at the time of these bondings, the rolling oil on the surface of the aluminum foil must be washed and removed, and then bonded with a two-part type epoxy resin, and then pressed with a turn buckle while paying attention to room temperature. However, there is still a risk that peeling will occur between the wood-based substrate and the aluminum foil. Japanese Patent Application Laid-Open No. 2-175240 does not sufficiently disclose the thickness of the aluminum foil for guaranteeing the heat resistance, the thickness and weight of other materials used on the aluminum foil, and other necessary numerical values.

[0008] Accordingly, an object of the present invention is to provide excellent heat resistance,
An object of the present invention is to provide a heat-resistant decorative board having high strength and high surface hardness and a beautiful appearance used for a table, a counter or a top plate of kitchen equipment.

[0009]

According to the present invention, there is provided a method for manufacturing a semiconductor device, comprising:
14 to 3 basis weight on both sides of 0 micron aluminum foil 11
A synthetic fiber paper-coated aluminum sheet 1 to which 0 g / m ² of chemical fiber paper 12 is adhered is adhered to a wood-based substrate 2, and a cosmetic material 3 is thermally conductive on the surface of the synthetic fiber paper-coated aluminum sheet 1. The above object has been achieved by providing a heat-resistant decorative board characterized in that the powdery inorganic substance excellent in the above is adhered with a water-soluble adhesive c mixed with 3 to 10% by weight.

[0010]

According to the heat-resistant decorative board of the present invention, it is a heat source and a radiator such as a lit cigarette or a match against a cigarette or a match that is ignorantly dropped or misplaced in daily life. The air from the aluminum foil is not air with poor heat conduction efficiency, but chemical fiber paper impregnated with a water-soluble adhesive mixed with a powdered inorganic substance with excellent heat conductivity is interposed. The heat can be reliably transmitted to the aluminum foil as the heat radiator. Further, since the adhesive penetrates into the chemical fiber paper, the wooden substrate and the aluminum foil, and the aluminum foil and the decorative material can be firmly adhered to each other via the chemical fiber paper.

[0011]

Hereinafter, one embodiment of the heat-resistant decorative board of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is an enlarged cross-sectional view showing a heat-resistant decorative plate according to one embodiment of the present invention with a part thereof omitted. FIG. 2 is a schematic explanatory view showing a manufacturing process of the heat-resistant decorative board according to one embodiment of the present invention.

As shown in FIG. 1, a heat-resistant decorative plate of this embodiment has an aluminum foil 11 having a thickness of 30 to 50 microns.
On both sides of chemical fiber paper 12,1 with a basis weight of 14 to 30 g / m ²
The synthetic fiber-coated aluminum sheet 1 on which the synthetic fiber-coated aluminum sheet 2 is adhered is attached to the wooden substrate 2, and the surface of the synthetic fiber paper-coated aluminum sheet 1 is
The cosmetic material 3 is affixed with a water-soluble adhesive c mixed with 3 to 10% by weight of a powder inorganic material having excellent thermal conductivity.

That is, in the heat-resistant decorative board of the present invention, as shown in FIG. 1, a synthetic fiber-coated aluminum sheet 1 is adhered to a wooden substrate 2 via an adhesive b layer. The synthetic fiber paper-coated aluminum sheet 1 is a sheet in which chemical fiber papers 12 having a basis weight of 14 to 30 g / m ² are adhered to both sides of an aluminum foil 11 having a thickness of 30 to 50 microns with an adhesive a.
It has a laminated structure of chemical fiber paper 12-adhesive a-aluminum foil 11-adhesive a-chemical fiber paper 12. The decorative material 3 is adhered on the synthetic fiber paper-coated aluminum sheet 1 via a water-soluble adhesive c layer, and the water-soluble adhesive c contains 3 to 3 powdered inorganic substances having excellent thermal conductivity. 10% by weight is mixed. The adhesives b and c are penetrated to every corner of the mesh structure of the chemical fiber paper 12 of the synthetic fiber paper-coated aluminum sheet 1, and the wood-based substrate 2-synthetic fiber paper-coated aluminum sheet 1-
The decorative material 3 is adhered, and a heat-resistant decorative board having an integral structure is firmly bonded from the wooden substrate 2 to the decorative material 3. Further, on the decorative material 3, FIG.
Although not shown in the figure, coating is applied as needed to form a coating film.

Hereinafter, the heat-resistant decorative board of the present invention will be described in more detail with reference to the embodiment shown in FIG. Aluminum foil 11
When the thickness of the aluminum foil is less than 30 microns, the heat capacity is low and the heat diffusion power of the entire aluminum foil is insufficient,
Effective heat resistance against tobacco and match fire is not obtained,
On the other hand, if the thickness exceeds 50 microns, the cost increases and there is a risk that the saw teeth may be damaged during the processing of the heat resistant decorative board.

The chemical fiber paper 12 having a basis weight of 14 to 30 g / m ² attached to both sides of the aluminum foil is generally
The fiber itself is not hollow and is a long fiber, and has a strength comparable to Japanese paper having a mesh-like structure due to the entanglement of the fibers, and is thinner than wood pulp paper. If the basis weight of the chemical fiber paper 12 is less than 14 g / m ² , it will be easy to cut during lamination with the aluminum foil 11, and if the basis weight exceeds 30 g / m ² , the cost will increase, and There is a risk that the penetration of the agent will be poor and the heat diffusion performance will be reduced. A preferred example of the chemical fiber paper 12 is rayon paper. The adhesive a for bonding the aluminum foil 11 and the chemical fiber paper 12 may be any as long as the chemical fiber paper 12 is attached to the aluminum foil 11, and is usually a urethane-based adhesive, an acryl-modified vinyl acetate adhesive, A vinyl adhesive or the like is used.

The woody substrate 2 to which the synthetic fiber paper-coated aluminum sheet 1 in which the chemical fiber paper 12 is adhered on both sides of the aluminum foil 11 with the adhesive a is used as the woody substrate 2, MDF (medium fiber board), LVL, A particle board, OSB or the like is used. As the adhesive b for bonding the synthetic fiber paper-coated aluminum sheet 1 and the wood-based substrate 2, a water-soluble adhesive such as a vinyl acetate adhesive, a urea resin adhesive, an acrylic adhesive for vinyl chloride, and a vinyl urethane adhesive is usually used. Adhesive is used,
It is appropriately selected or mixed depending on the properties of the wood substrate 2. Examples of the decorative material 3 include a material that is attached to the wooden substrate 2 to give an aesthetic appearance, for example, a wood veneer such as a white oak veneer, a PVC sheet on which a wood grain pattern or an abstract pattern is printed, or the like. Plastic sheet, rubber sheet, printing base paper and the like are used.

The water-soluble adhesive c for bonding the synthetic paper-coated aluminum sheet 1 and the wood-based substrate 2 is usually
A vinyl acetate adhesive, a urea resin adhesive, a urethane adhesive, or the like is used. The acidity of the water-soluble adhesive c is desirably neutral since an inorganic substance is mixed therein. The water-soluble adhesive c contains 3 to 10% by weight, preferably 3 to 5% by weight, of a powdered inorganic material having good thermal conductivity and dispersed therein. Examples of the powdered inorganic material include silica, alumina, and aluminum nitride. , Silicon carbide, fluorite, magnesium oxide or mica is used,
One type or a mixture of two or more types is used in consideration of the material of the cosmetic material 3 and the like. Thermal conductivity of these inorganic substances (W · m ^-1 ·
K ^-1 ) is silica 1.5, alumina 30, aluminum nitride 2
00, silicon carbide 300, fluorite 10.3, magnesium oxide 40, mica 0.8, and the like. The approximate value of the thermal conductivity of the plastic used as the raw material of the adhesive is 0.25 to 0.35.
W · m ⁻¹ · K ⁻¹ . Water soluble adhesive of powdered inorganic substance c
If the weight ratio to is less than 3% by weight, effective thermal conductivity cannot be obtained, and if it exceeds 10% by weight, there is a risk that the adhesive strength is reduced. The particle size of the powdered inorganic substance is desirably 50 mesh or less because if the particle size is too large, it becomes difficult to enter the mesh of the chemical fiber paper 12.

The heat-resistant decorative board of the present invention is constructed as described above, and has an air layer having a low thermal conductivity from the wooden substrate 2 to the decorative material 3 (air has a thermal conductivity of 0.025 W · m ^{−). 1.}
K ^-1 ), the heat is applied to the surface of the decorative material 3 so that the heat applied to the surface of the aluminum foil 11
It becomes easy to tell. In the heat-resistant decorative sheet of the present invention, the water-soluble adhesive c for bonding the synthetic fiber paper-coated aluminum sheet 1 and the decorative material 3 contains 3 to 10% by weight of a powdered inorganic substance having good thermal conductivity.
Since they are mixed and dispersed, the heat applied to the surface of the decorative material 3 can be efficiently transmitted to the aluminum foil 11 which is a radiator.

Further, the heat-resistant decorative board of the present invention has a high strength and hardness because it has an integral structure firmly bonded from the wooden substrate 2 to the decorative material 3.
There is no danger of peeling between the paper layer or the aluminum foil 11 and the wooden substrate 2, and it can withstand horizontal use such as a table or counter top plate and is made of urethane resin or polyester resin. A hard coating film with the used thickness can be formed.

Next, a preferred embodiment of the production of the heat-resistant decorative board of the present invention will be outlined with reference to FIGS. 1 and 2 by dividing it into first to third work steps. [First work step: Adhesion of synthetic fiber paper-coated aluminum sheet 1 and wood-based substrate 2] Rayon paper (basis weight 15 g / m ² ) 12 as a chemical fiber paper is pasted on both sides of aluminum foil 11 in advance. A coated aluminum sheet 1 is prepared. Then
40 g of vinyl acetate adhesive b is applied to the surface of a wooden substrate MDF (medium fiber board) 2 by a gluing machine 4 such as a spreader.
/ M 2, the synthetic fiber paper-coated aluminum sheet 1 is temporarily bonded to the MDF ² with a laminator 5. At this time, the synthetic fiber paper-coated aluminum sheet 1 previously cut to the same size as the MDF 2 was manually cut without using the laminator 5.
It is good also on 2. Next, these are heated and pressed by a hot press 6 to convert the synthetic fiber paper-coated aluminum sheet 1 to MDF2.
In close contact. The working conditions of the hot press 6 are as follows: hot platen temperature 70 to 90 ° C., pressing pressure 2.5 to 3.5 kg / cm ² ,
A pressing time of 40 to 60 seconds is appropriate. This first operation step is the same regardless of the type of the decorative material 3, which means that the first operation step and the second operation step are the basis.

[Second working step: bonding of the decorative material 3 after the first working step] The second working step may be slightly different depending on the type of the decorative material 3. However, since the decorative material 3 is stuck to the rayon paper 12 instead of to the aluminum foil 11, the same operation as in the case of sticking to the ordinary wooden substrate 2 can be performed. (Production Example 1: When decorative material 3 is white oak veneer) Vinyl acetate obtained by mixing and dispersing 5% by weight of mica on synthetic fiber paper-coated aluminum sheet 1 adhered to MDF 2 through the first working step The adhesive c is applied at 60 to 70 g / m ^2, and a white oak veneer 0.2 mm thick is immediately used as the decorative material 3.
Are regularly arranged and heated and pressed by a hot press to obtain the heat-resistant decorative plate of the present invention. In this case, there is a danger that the adhesive c may seep out of the white oak veneer 3 from the cracks, conduits, etc., so that the powdered inorganic substance used is silica or mica which does not stain the white oak veneer 3. Certain powdered minerals are preferred. (Production Example 2: Cosmetic material 3 is wood grain print paper) Vinyl acetate in which 5% by weight of alumina is mixed and dispersed on synthetic fiber paper-coated aluminum sheet 1 adhered to MDF 2 through the first working step After applying the adhesive c in an amount of 60 to 70 g / m ² and semi-drying with hot air, the cosmetic material 3 is immediately treated with 23 g / m ^2.
The second work step is completed by attaching the woodgrain pattern printing paper 3 with a laminator to obtain the heat-resistant decorative board of the present invention. (Production Example 3; when decorative material 3 is a wood pattern printed PVC sheet)
On the synthetic fiber paper-coated aluminum sheet 1 adhered to the MDF 2 through the first working step, 70 to 80 g / m ² of an aqueous adhesive c for PVC in which 3% by weight of alumina was mixed and dispersed was applied.
A wood-pattern printed PVC sheet 3 having a thickness of 200 μm is temporarily bonded as a decorative material 3 through a deaeration roll, then pressed and cured with a turn buckle to complete the second working process, and the heat-resistant decorative sheet of the present invention is completed. Is obtained.

[Third work step: painting the surface after the second work step] The third work step is necessary for the surface of the decorative material 3 in the heat-resistant decorative board of the present invention obtained in the second work step. Depending on the type of the decorative material 3, a coating is applied by a known coating operation. (Manufacturing example 1; when the decorative material 3 is a white oak veneer) The urethane resin paint is divided into two portions on the 0.2 mm-thick white oak veneer 3 stuck in the second working step, and the total is 100 to 100%.
After applying 150 g / m ² and drying naturally, the total thickness of the white oak veneer 3 and the coating was totaled to obtain a beautiful coating having a thickness of 300 to 400 μm. In; (Production Example 2 when the decorative material 3 is grain pattern printed paper) 23 g / m ² grain pattern printing paper 3 surfaces affixed in the second working step, Riva - score - data - using a UV polyester resin 10
After coating, curing and sanding with 0 g / m ² , the hard coat type UV polyester resin is further coated with 120 to 160 g / m ^2.
The total thickness of the printing paper and the coating film, which were applied with ^two guns and cured again by UV irradiation, was obtained to obtain a coating film having a thickness of 500 to 600 microns. (Production Example 3; when decorative material 3 is a wood pattern printed PVC sheet)
A hard coat type urethane resin paint of 80 to 100 g / m ² is further applied with a gun to the 200-μm thick wood pattern printed PVC sheet 3 applied in the second operation step, and dried and cured. 230 to 250 in total of the thickness of the PVC sheet and the coating film
A micron thick coating was obtained.

Next, test examples showing the effects of the heat-resistant decorative board of the present invention will be described. [Test Example 1] Using the decorative material 3 described in each of the production examples, one cigarette was placed on the surface of each decorative material 3 of each of the heat-resistant decorative boards (products of the present invention) obtained in the above production examples 1 to 3. Was left for about 15 minutes from the start of burning until it burned out, and the results of a cigarette test in which the surface condition after burning was visually observed are shown in Table 1 below.

[0024]

[Table 1]

From the results shown in Table 1 above, the heat-resistant decorative boards of the present invention (Production Examples 1 to 3) are comparative products (Comparative Examples 1 to 3).
It turns out that heat resistance is remarkably excellent compared with 10).

Test Example 2 The heat-resistant decorative board (test product) obtained in Production Example 1 and Kraft paper, which is wood pulp paper, was used instead of rayon paper as the chemical fiber paper in Production Example 1. The results of a tensile test comparing the inter-sheet strength with a comparative product obtained in the same manner as in Production Example 1 except for the above are shown in Table 2 below.

[0027]

[Table 2]

From the results shown in Table 2 above, it can be seen that the heat-resistant decorative board (test article) of the present invention has significantly higher strength than the comparative article.

[0029]

According to the heat-resistant decorative board of the present invention, an integrated structure that does not include an air layer having a low thermal conductivity from the wooden substrate 2 to the decorative material 3 is formed. Since the water-soluble adhesive c for bonding with the cosmetic material 3 contains 3 to 10% by weight of a powdered inorganic material having good thermal conductivity, the water-soluble adhesive c is applied on the cosmetic material 3 or on the coating film formed on the cosmetic material 3. Even if a lit cigarette or a match falls, the heat of the lit cigarette or the match is quickly transmitted to the aluminum foil 11 through the coating film and the decorative material 3 immediately below, and diffused throughout the aluminum foil 11. Further, it diffuses into the lower wooden substrate 2 and the temperature of the lit cigarette or the decorative material 3 immediately below the match remains low, and no scorching, discoloration, deformation, etc. of the surface occur, and the original decorative material Aesthetics can be maintained. Also,
The heat-resistant decorative plate of the present invention is not only for cigarettes, matches and the like,
It is needless to say that the structure is hard to scorch even in the intense fire.

The heat-resistant decorative board of the present invention uses the synthetic fiber paper-coated aluminum sheet 1 composed of the aluminum foil 11 on both sides of which the chemical fiber paper 12 is adhered. 2 or the adhesive material b and c that have penetrated into the interior of the chemical fiber paper 12,
It combines with the long and strong fibers of the chemical fiber paper 12 to form a hard and durable integrated structure, and has strong inter-sheet strength. When wood pulp paper is used, the adhesive cannot penetrate the entire paper, leaving a layer with the properties of the paper itself in the center of the paper. Paper-to-paper peeling is likely to occur with force. According to the heat-resistant decorative plate of the present invention, since a hard and durable layer is formed, it is most suitable for a top plate such as a table which requires hardness and strength, and a cutting operation using a saw blade after pasting. In this case, there is no inter-paper peeling or swelling due to peeling.

Further, according to the heat-resistant decorative board of the present invention, since the synthetic fiber paper-coated aluminum sheet 1 made of the aluminum foil 11 with the chemical fiber paper 12 stuck on both sides is used, the aluminum foil 11 is 2 or the decorative material 3, the chemical fiber paper 12 and the wood-based substrate 2 or the decorative material 3 are actually bonded to each other. You can do it. Also,
Generally, there is no need for difficult and careful work used in bonding metal (aluminum foil 11) and wood (wood-based substrate 2), and curing after bonding is not necessary, thereby dramatically improving production efficiency. Can do things.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a heat-resistant decorative plate according to one embodiment of the present invention with a part thereof omitted.

FIG. 2 is a schematic explanatory view showing a manufacturing process of a heat-resistant decorative board according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Synthetic paper coated aluminum sheet 11 Aluminum foil 12 Chemical fiber paper 2 Woody substrate 3 Cosmetic material c Water soluble adhesive

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takeyuki Torii 135 Yanagimachi, Shizuoka City Inside Sumitomo Forestry Clexs Co., Ltd. JP, Y2)

Claims (4)

(57) [Claims] 1. A synthetic fiber paper 1 having a basis weight of 14 to 30 g / m ^{2 on} both sides of an aluminum foil 11 having a thickness of 30 to 50 microns.
The synthetic paper-coated aluminum sheet 1 to which the synthetic fibers 2 and 12 are attached is adhered to the wooden substrate 2, and the cosmetic material 3 is coated on the surface of the synthetic paper-coated aluminum sheet 1 with a powdered inorganic material having excellent heat conductivity of 3 to 3. A heat-resistant decorative board which is adhered with a water-soluble adhesive c mixed at 10% by weight. 2. The heat-resistant decorative board according to claim 1, wherein the chemical fiber paper 12 is rayon paper. 3. The heat-resistant decorative board according to claim 1, wherein said decorative material 3 is a veneer, a decorative paper or a plastic sheet or film. 4. The heat-resistant decorative board according to claim 1, wherein the inorganic powder is silica, alumina, aluminum nitride, silicon carbide, fluorite, magnesium oxide or mica.