JP2003266402A - Sliced veneer-laminated decorative board beneficial to health - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliced veneer-laminated decorative board beneficial to health which emits a negative ion effective to maintain and promote a human health to an environment and which has a good appearance and high grade feeling. <P>SOLUTION: The sliced veneer-laminated decorative board beneficial to health comprises a transparent coating film (provided as desired) 2, a sliced veneer 3, a first adhesive layer 4, a fibrous sheet 5, a second adhesive layer 6 and a woody plate (or a ceramic non-combustible plate) 7 sequentially laminated and integrally fixed. The first layer 4 and the second layer 6 contain negative ion generating ceramics containing at least one type of rare earth element oxide or at least one type of rare earth element oxide and a zirconium oxide of 5 to 30 pts.mass with respect to 100 pts.mass of the layer 4 or the layer 6. A thickness of the veneer 3 is 0.3 mm or less. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a veneer-attached health decorative board, and more particularly to a veneer that emits negative ions into the environment, which is effective for maintaining and promoting human health, and has a good appearance and a high-class appearance. It is related to the pasted health veneer.

[0002]

2. Description of the Related Art In the natural world, negative ions that are often found in the air around waterfalls, the sea, plateaus, forests, etc.
It is known to be effective in maintaining and improving human health, and has the following actions or effects, for example. 1) Purification of harmful substances such as formalin released indoors from new building materials. 2) Decomposition and deodorization of unpleasant odors such as cigarette smoke, pet odors, and garbage. 3) Prevention of air pollution due to bactericidal action. 4) Removal of allergic substances such as cedar pollen, mite carcasses and feces that cause hay fever and bronchial asthma. 5) Prevention of mold and odor removal. 6) Improvement of stress, insomnia, loss of appetite, etc. 7) Prevent drowsiness and fatigue when driving a vehicle. Removal of odors from exhaust gas and purification of air inside the vehicle. 8) Improving concentration, improving study and work efficiency. Reduction of serotonin (a neurotransmitter) that increases oxygen levels in the blood and promotes drowsiness and fatigue. 9) Promotion of growth of potted plants.

In recent years, various products mixed with or coated with a substance generating negative ions and a method for producing the same, specifically, for example, a method for producing a health building material (Japanese Patent Laid-Open No. 2001-239).
No. 503), cork plate (Japanese Patent Laid-Open No. 11-3401).
9), decorative materials (see JP-A-11-81196), inner wall materials (see JP-A-2001-152637), interior building materials (see JP-A-2001-234595), and the like. There is. In the above-mentioned publication, examples of substances that generate negative ions include natural minerals, specifically quartz porphyry, granite (porphyry), tourmaline,
Raw zeolite, Samalski stone, Jergson stone, Xenotime, trog rubber stone, variant zircon, helegron stone, trog rubber stone, pegmatite, etc. are used.

[0004]

By the way, a veneer-attached decorative board obtained by laminating a wood-based material on a predetermined base material can have a good appearance like that of high-grade wood. It is widely used as a material forming walls, floors, and ceilings of houses, or as an interior material for vehicles such as automobiles and trains, and for aircraft. However, when such a veneer-attached decorative plate is provided with the above-mentioned negative ion releasing function, there are various problems as exemplified below when the conventional technique is used. a) In the invention described in Japanese Patent Application Laid-Open No. 2001-239503 (a method for manufacturing a health building material), a negative ion generating substance (using quartz porphyry, granite porphyry, tourmaline or zeolite rough) is used for plywood and laminated wood. A healthy building material is obtained by sticking together with the contained adhesive and pressure-bonding. When using this health building material, the health building material is cut in a direction perpendicular to the adhesive surface, and the cut surface (a negative ion emitting surface where a layer made of plywood or laminated wood and an adhesive layer is laminated) is exposed. There is. However, since the health building material and the veneer-applied decorative board are completely different in technical field, it is difficult to directly apply this method to the veneer-applied decorative board (having no adhesive layer on the surface). b) In the invention (cork board) described in JP-A-11-34019, a negative ion generating substance (using tourmaline) is mixed with a cork material, or the negative ion generating substance is pressure-permeated into the cork material. There is. JP-A-11
In the invention (decorative material) described in Japanese Patent Publication No. 81196,
Negative ion generating substance (using Samalski stone, Jerguson stone, xenotime, trogamstone or variant zircon) is contained in the cosmetic material (mixed in the cosmetic material or provided in a layer on the cosmetic material) . In the invention (inner wall material) described in JP 2001-152637 A, a negative ion generating material (using tourmaline, granite, Hergson stone, trogamstone or pegmatite) is applied to the surface of the inner wall material. In addition, JP-A-200
In the invention (indoor building material) described in JP-A-1-234595, a resin composition containing a negative ion generating substance (using tourmaline) is applied or layered on the indoor building material. However, any of these methods leads to the formation of an opaque layer on the surface of the veneer, completely or significantly impairing the design of the veneer, and therefore cannot be used to obtain a veneer-attached decorative plate.

[0005] Veneer pasting with a highly designed veneer is very useful for giving a negative ion releasing property effective for maintaining and improving human health to the veneer, which is very useful for maintaining a beautiful and good environment. You can get a health veneer,
As described above, when imparting a negative ion releasing function to the veneer pasting decorative material, it is not possible to apply a coating to the surface of the veneer, impregnate it, or adopt a method of providing a negative ion releasing layer, Further, since the veneer is a thin plate made of a natural material, it is not possible to mix a substance that generates negative ions into the raw material of the veneer. Therefore, it is difficult to obtain a veneer-attached health decorative board capable of releasing negative ions into the surrounding environment from the description of the literature of the prior art or a combination of the prior arts.

[0006] The present invention is to solve the above-mentioned problems of the prior art, and its purpose is to release negative ions into the environment, which are effective for maintaining and promoting human health, and to improve the appearance. The object is to provide a veneer-attached health decorative board which has good quality, has a high-grade feeling, and can be widely used in various applications.

[0007]

[Means for Solving the Problems] That is, in the veneer-attached health decorative board of the first invention of the present invention, the veneer, the adhesive layer, and the base material made of a wood board or a ceramic non-combustible board are sequentially laminated and fixed integrally. A veneer-attached health decorative board comprising the adhesive layer 10 comprising a negative ion generating ceramic containing at least one rare earth element oxide or at least one rare earth element oxide and zirconium oxide in the adhesive layer.
5 to 30 parts by mass are added to 0 parts by mass, and the thickness of the projecting plate is 0.3 mm or less. The veneer-attached health decorative board of the second invention of the present invention comprises a veneer, a first adhesive layer, a fibrous sheet, a second adhesive layer, and a base material made of a wood board or a ceramic-based noncombustible board in order. A veneer-bonded health decorative plate laminated and integrally fixed, wherein the first adhesive layer or the first adhesive layer and the second adhesive layer contain at least one rare earth element oxide or Negative ion generating ceramics containing at least one rare earth element oxide and zirconium oxide are added in an amount of 5 to 30 parts by mass with respect to 100 parts by mass of the first adhesive layer or the second adhesive layer. The thickness of the projecting plate is 0.3 mm or less. The veneer-attached health decorative board of the third aspect of the present invention comprises a veneer, a first adhesive layer, a fibrous sheet, a second adhesive layer, and a base material made of a metal foil or a metal plate, which are sequentially laminated. A veneer-bonded health decorative plate integrally fixed to the first adhesive layer or the first adhesive layer and the second adhesive layer, wherein at least one rare earth element oxide or at least one The negative ion generating ceramics containing the rare earth element oxide and zirconium oxide of 5 parts by mass to 30 parts by mass is added to 100 parts by mass of the first adhesive layer or the second adhesive layer, The veneer has a thickness of 0.3 mm or less. The veneer-attached health decorative board of the fourth invention includes a veneer, a first adhesive layer, a first fibrous sheet, a second adhesive layer, a metal foil, and a third adhesive layer. , A second fibrous sheet is sequentially laminated and fixed integrally, and at least one rare earth element oxide is added to the first adhesive layer or the first adhesive layer and the second adhesive layer. Or at least one rare earth element oxide and negative ion generating ceramics containing zirconium oxide are added in an amount of 5 to 30 parts by mass with respect to 100 parts by mass of the first adhesive layer or the second adhesive layer. The thickness of the projecting plate is 0.3 mm or less.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION <Negative Ion Generating Ceramics> In the health veneer with a veneer according to the first to fourth inventions, at least one rare earth element oxide or at least one rare earth element oxidation is used as a source of negative ions. And a negative ion generating ceramic containing zirconium oxide is used. Zirconium oxide is a material that emits far infrared rays. Preferred are, for example, 15 to 17 mass% of at least one rare earth element oxide (mixture of rare earth element oxides), 43 to 47 mass% of zirconium oxide, and 21 to 25 of silicon dioxide with respect to 100 mass% of negative ion generating ceramics. It is a negative ion generating ceramic composed of mass% and the rest. The negative ion generating ceramics will be briefly described below. i) Significance of releasing negative ions into the air In the atmosphere on the earth, air is ionized into positive and negative ions by natural radioactivity from cosmic rays and minerals in the shell, but ), The positive ions are usually about 10% more than the negative ions. Further, in the room, the concentration of positive ions and negative ions is reduced to about 1/2 of the concentration in the outside air. Negative ion generation When negative ions generated from ceramics are released into the air, the ion concentration in the air, especially the negative ion concentration, increases, and the outside air, especially the sea, plateau, forests, etc., is rich and refreshing or refreshing. A mood can be provided.

Ii) Structure of Negative Ion Generating Ceramics Negative ion generating ceramics usable in the present invention are:
Those having the above composition, capable of continuously generating a suitable amount of negative ions, safe, and easy to handle are preferable. The mixture of rare earth element oxides is, for example, a mineral that is industrially used as a rare earth element raw material. An example of this mineral has the following composition: ThO
₂ 6 wt%, U ₃ O ₈ 0.3 wt%, the balance (Ce, L
a, Th) PO ₄ is a radioactive mineral. Products using radioactive minerals are regulated by the law [Law concerning the regulation of nuclear fuel materials / nuclear raw materials and nuclear reactors (1964)].

As a ceramic for generating negative ions, for example, an ion / far infrared ray generating source ceramic is commercially available from Mino Pigment Chemical Co., Ltd. under the trade name: MINOPET-IP. Therefore, it is convenient to use this. good. The composition of the Minopette-IP is shown below. <Composition of Minopette-IP> La ₂ O ₃ ¹⁾ 5.0 mass% CeO ₂ ²⁾ 8.5 mass% Nd ₂ O ₃ ³⁾ 3.0 mass% ( ¹⁾ + ²⁾ + ³⁾ = 16 ± 1% by mass) ZrO ₂ 45 ± 2% by mass SiO ₂ 23 ± 2% by mass P ₂ O ₅ 7 ± 1% by mass ThO ₂ 1.6 ± 0.2% by mass U ₃ O ₈ Less than 0.1% by mass Moisture 1 0.0% by mass Minopette-IP is usually commercially available in the form of powder having an average particle size of 0.5 μm to 10 μm. The MINOPET-IP used in the present invention is preferably a powder having an average particle size of 0.5 μm to 3.0 μm.

<Difference between Minopette-IP and Tourmaline> A typical example of the negative ion generating ceramics used in the present invention is the above-mentioned Minopette-IP. Minopette-I
P is a radioactive mineral industrially used as a raw material of rare earth elements [composition: 6% by mass of ThO ₂ ,
U ₃ O ₈ 0.3% by mass, balance (Ce, La, Th) PO
₄ ] is included. On the other hand, a typical example of a negative ion generating substance that has been conventionally used is tourmaline. Tourmaline includes SiO ₂ , Al ₂ O ₃ , B ₂ O ₃ and Fe.
It is an ore mainly composed of ₂ O ₃ , CaO, Na ₂ O and K ₂ O, and has a property of being negatively charged by friction. Minopette-IP is a radioactive substance, thorium (T
It contains h) and uranium (U), has a completely different composition from tourmaline, and has a much higher ability to generate negative ions than tourmaline. Therefore, the minopet-
IP is superior to tourmaline as a negative ion generating ceramic and is very useful.

Iii) Generation Mechanism of Negative Ions When the trade name: Minopette-IP is used as the negative ion generation ceramics and the substance to be negatively ionized is water, the radiation emitted from the ceramics (mostly , Energy of 5 Mev α
Lines act on water molecules in the air, and the water molecules are decomposed into ions. For example, negative ions such as H ₃ O ⁻ and HO ⁻ and positive ions paired with them are generated. In practice, these ions combine with water particles (water clusters) of a predetermined size, with positive ions combining with large water clusters and negative ions combining with small water clusters. Further, since the positive ions are easily combined with dust in the air, they are easily attached or dropped on the ground or the floor and wall surface of the building. On the other hand, when the relative humidity is in the range of 40 to 60% (humidity band where humans normally feel comfortable), the water content in the air becomes water clusters having a size of 0.5 to 1 nm.
It is negatively ionized. This negative ionized water cluster is effective in maintaining and promoting human health.

Iv) Negative Ions Maintaining / Promoting Human Health Negative ions have the following actions for maintaining / promoting human health. General concept of action: sedation, hypnosis, analgesia, antitussive, sedation, antiperspirant, increased appetite Blood pressure: falling pulse: decreased breathing: sedation, decreased cardiac function: decreased initially, increased afterwards Capillaries: dilated autonomic nerves: parasympathy (vagus ) Tension tendency of nerves Fatigue: Recovery promotion, fatigue prevention

<Regarding Thickness of Veneer Plate> Negative ion generating ceramics are used as an adhesive layer (first adhesive layer) immediately below the veneer plate or a first adhesive layer and an adhesive layer below it (second adhesive layer). Since it is added to the layer), the negative ions are generated in the vicinity of the surface of the projecting plate by the radiation from the negative ion generating ceramics, and as a result, the negative ions are emitted from the surface of the projecting plate. Since the degree of shielding of the radiation varies depending on the material and thickness of the projecting plate, it is necessary to optimally select the material and thickness of the projecting plate, particularly the thickness. That is, as shown in Examples described later, if the thickness of the projecting plate is 0.3 mm or less, a sufficient amount of negative ions can be generated even if the material of the projecting plate is different. The lower limit of the thickness of the veneer is appropriately selected in consideration of the material of the veneer, the design, the difficulty of manufacturing, and the like.

<Regarding the Amount of Negative Ion Generating Ceramics Added to the Adhesive Layer> The adhesive layer (first adhesive layer) immediately below the veneer or the first adhesive layer and the adhesive layer below it (second adhesive layer). The amount of the negative ion generating ceramics added to the adhesive layer) affects the amount of radiation generated from the negative ion generating ceramics, and thus the negative ion generating amount, and the adhesive containing the negative ion generating ceramics. It also affects the adhesive properties of the layers. Increasing the amount of added negative ion generating ceramics increases the amount of negative ion generation, but on the other hand, it causes a problem of radiation exposure. Further, the addition amount is also affected by the thickness of the veneer plate. Therefore, it is necessary to select the addition amount optimally. Further, since the adhesive property of the adhesive layer is deteriorated when the added amount of the negative ion generating ceramics is increased, the added amount is selected so that sufficient adhesiveness of the adhesive layer can be obtained. That is, as shown in Examples described later, when the thickness of the veneer is in the above range, the negative ion generating ceramics is used to bond the negative ion generating ceramics directly below the veneer (first adhesive layer) or the first adhesive layer. If 5 parts by mass to 30 parts by mass is added to the agent layer and the adhesive layer below it (second adhesive layer) with respect to 100 parts by mass of the first adhesive layer or the second adhesive layer. In addition, a sufficient amount of negative ions can be generated, there is no danger of being exposed to excessive radiation, and sufficient adhesiveness can be obtained.

Adhesives, wood boards, ceramic-based non-combustible boards, fibrous sheets, metal foils used in the veneered health decorative board of the present invention,
As the metal plate and other materials, those conventionally used in this field can be used as exemplified below. Adhesive: Synthetic resin such as polyolefin resin such as ethylene / acrylic acid copolymer (EAA), ethylene / ethyl acrylate copolymer (EEA), ethylene /
Liquid or film-like adhesive containing vinyl acetate copolymer (EVA) as a main component Wood board: plywood or fiber board in which various kinds of natural or artificial powder, fibrous, plate-like or sheet-like materials are laminated and fixed Non-combustible wood-based ceramic plates such as: Natural or artificial ceramic (ceramic)
Plate-like material (including plywood-like material) made non-combustible by mixing or applying materials Fibrous sheet: Sheet made of non-woven fabric, paper, cloth, etc. Metal foil or metal plate: Aluminum, copper, steel, zinc-coated steel, Foil or plate made of stainless steel, other alloys, and other materials: Additives such as hiding agents, dyes, pigments, UV inhibitors, and antioxidants

[0017]

The present invention will be described in more detail by the following examples. Example 1 In this example, the amount and location of addition of negative ion generating ceramics were examined. 12 kinds of veneer-laden health decorative boards 1A to 6A, which are distinguished by the amount of the above-mentioned ceramics and the presence or absence of coating according to the following material composition
And 1B-6B were produced. <Basic material composition> I. (Transparent coating) / Veneer / Adhesive layer / Plywood ... Configuration of the first invention II. (Transparent coating) / Veneer / First adhesive layer / Fibrous sheet / Second adhesive layer / Plywood ... Constitution of the second invention of the present invention Veneer: thin veneer; Tamosu, H maple heather Two types: First adhesive (adhesive) and second adhesive: The adhesive for veneer is used as it is, or the adhesive for veneer is added with trade name: MINOPET-IP as negative ion generating ceramics, Addition amount: 20 parts by mass or 50 parts by mass based on 100 parts by mass of the first adhesive (adhesive) or the first adhesive and the second adhesive solid content, coating amount (as solid content); 60-66 g / m ² · Plywood: Normal plywood F _c0 4 mm thick · Fibrous sheet: Thin paper · Transparent coating: Provided as desired; In this example, a polyurethane-based coating is applied in a dry state of about 15 g / m ² Figure 1 A cross-sectional view of the veneer-attached health decorative board 1 of the present invention in the case of the basic material constitution II is shown in The veneer-attached health decorative board 1 includes a transparent coating film 2, a veneer 3, a first adhesive layer 4, a fibrous sheet 5,
The second adhesive layer 6 and the plywood 7 are sequentially laminated and fixed.

<Measurement of Negative Ions> With respect to the veneer-attached health decorative boards (1A to 6A and 1B to 6B) of Example 1, negative ions were measured with the following ion measuring instrument. Ion measuring device A: Universal Planning Co., Trade name: AIR
ION COUNTER IC-1000 Ion measuring instrument B: Eco Hollistec Co., Ltd., trade name:
The EB-12 IONTESTER results are shown in Table 1 below.

[Table 1] * Negative ion measurement results are shown in units / cm ³ .

FIG. 2 shows the measurement result of negative ions by the measuring machine A when the projecting plate is tampe. Also, in FIG.
The measurement result of the negative ion by the measuring device B when the veneer plate is Tamosu is shown. Different types of measuring instruments have different properties (eg, size) of negative ions measured by the measuring instruments. As a result, the measurement results of negative ions are greatly different when the measuring instruments are different. Therefore, it is necessary to judge the measurement result comprehensively. The outline is as follows. Amount of negative ion generating ceramics (parts by mass)
The number of negative ions generated increases as the amount increases (measurement result by the measuring device B), but the degree of increase in the number of negative ions generated increases as the addition amount increases (measurement result by the measuring device A). Tend. Regarding the first adhesive layer and the second adhesive layer, when the negative ion generating ceramics is added to the second adhesive layer in addition to the first adhesive layer, the number of negative ions generated increases. (Measurement result by measuring device B)
It is more effective to add it to the first adhesive layer (measurement result by the measuring machine A). When the urethane coating film is provided on the veneer, the number of generated negative ions tends to decrease, but the degree of decrease is not large.

Example 2 In this example, the annual exposure dose of radiation from a mixture of rare earth element oxides, which is one of the main components of negative ion generating ceramics, and the first adhesive layer (or adhesive layer). The addition amount of negative ion generating ceramics was examined. With the following material composition,
12 kinds of veneer-laden health decorative boards 1A to 6A and 1 which are distinguished by the amount of ceramics added and the amount of paint applied
B-6B were produced. <Basic material composition> IV. (Transparent coating) / Veneer / First adhesive layer / First fibrous sheet / Second adhesive layer / Metal foil / Second fibrous sheet ... Configuration of the fourth invention: Veneer: Thin veneer; two types of Tamo-Shu and H-maple heather ・ First adhesive: Use the adhesive for veneer as it is or add the trademark name: MINOPET-IP as the negative ion generating ceramics to the adhesive for veneer Use, addition amount;
Add 14 parts by mass or 28 parts by mass to 100 parts by mass of the first adhesive solid content ・ Second adhesive: Use the adhesive for veneer as it is ・ Metal foil: Use aluminum foil (thickness 15 μm) ・ Fiber Quality sheet: thin paper / transparent coating: provided as desired; in this example, polyurethane-based paint is applied at a solid content of 12 to 25 g / m ²

<Measurement of Negative Ions> As in Example 1, negative ions were measured with the following ion measuring instrument. Ion measuring device A: Universal Planning Co., Trade name: AIR
ION COUNTER IC-1000 Ion measuring instrument B: Eco Hollistec Co., Ltd., trade name:
EB-11 IONTESTER <Measurement of dose equivalent> The dose equivalent was measured with the following dose equivalent measuring machine. Dose equivalent measuring machine: manufactured by Horiba, Ltd., trade name: SCINTI
The results of LLATION SURVEY METER # PA-100 are shown in Table 2 below.

[Table 2]

Negative ions and dose equivalents in the blank (measuring chamber space) were measured using the above ion measuring instruments (A, B) and dose equivalent measuring instrument. The results are shown below. <Measurement result of blank anion and dose equivalent> -Measured value of anion in measurement chamber: 890 / cm
³ (ion measuring device A), 12 / cm ³ (ion measuring device B) ・ Dose equivalent in measurement room: 0.036 μSv / hour (converted into annual exposure dose 0.31 mSv)

<Consideration of Annual Radiation Dose from Minopette-IP> As is apparent from Table 2, test body 1A containing no negative ion generating ceramics,
Annual exposure from 2A, 1B and 2B is 0.32-0.
33mSv, annual radiation dose in the measurement room is 0.31m
It is Sv. On the other hand, the annual exposure dose from the test bodies 3A to 6A and 3B to 6B in which the negative ion generating ceramics is added to the adhesive in an amount of 14 to 28 parts by mass is 0.3.
It is 4 to 0.36 mSv, and the test body to which the negative ion generating ceramics is added increases only about 10% to 20% or less with respect to the annual exposure dose in the measurement room space, and the radiation from Minopette-IP is It turns out that he has no problem with his health.

<Consideration of Addition Amount of Negative Ion Generating Ceramics to Adhesive> From the data in Table 2, the negative ion measurement value (value obtained by subtracting the blank value) by the ion measuring instrument A was extracted. The results are shown in Table 3 below.

[Table 3] The result of Table 3 is plotted in a graph and shown in FIG.
As shown in FIG. 4, even if the amount of the negative ion generating ceramics added to the adhesive exceeds 20 parts by mass, the number of generated negative ions does not increase so much. Conversely,
When the amount of the negative ion generating ceramics added to the adhesive is less than 5 parts by mass, the number of negative ions generated is small. Therefore, it is understood that the negative ion generating ceramic should be added to the adhesive in an amount of 5 to 30 parts by mass.

Example 3 In this example, the thickness of the veneer was examined. Veneer-attached health decorative boards 1.1, 1.2 to 7.1 and 7.2 were manufactured using the following material configurations. <Basic material composition> IV. Veneer / first adhesive layer / first fibrous sheet / second adhesive layer / metal foil / second fibrous sheet ... Configuration of the fourth invention of the present invention Veneer: all Tamosu; thickness 0.1 mm, 0.2 mm and 0.5 mm thin veneer and 17 mm thick solid material / first adhesive: Use the adhesive for veneer as it is or trademark as negative ion generating ceramics for adhesive for veneer Name: 20 parts by mass of MINOPET-IP added (22 g / m ² in dry state) ・ Second adhesive: Veneer adhesive as is ・ Metal foil: Aluminum foil (15 μm thickness) First and second fibrous sheets: thin paper

<Measurement of Negative Ions> Negative ions were measured with the following ion measuring instrument. Ion measuring device A: Universal Planning Co., Trade name: AIR
ION COUNTER IC-1000 <Measurement of dose equivalent> The dose equivalent was measured by the following dose equivalent measuring machine. Dose equivalent measuring machine: manufactured by Horiba, Ltd., trade name: SCINTI
The results of LLATION SURVEY METER # PA-100 are shown in Table 4 below.

[Table 4]

<Consideration of Veneer Thickness> From the data in Table 4, the negative ion measured value (blank value) when the thickness of the wood (veneer) and the amount of the negative ion generating ceramics added to the adhesive changed (Value obtained by subtracting). The results are shown in Table 5 below.

[Table 5]

FIG. 5 is a graph plotting the results of Table 5. As shown in FIG. 5, negative ions are also generated from the wood (projection plate) itself, and the amount thereof increases as the thickness of the wood increases (see the broken line below). On the other hand, the radiation from the negative ion generating ceramics of the adhesive layer is shielded by the wood (projection plate), and the degree of shielding increases as the thickness of the wood becomes thicker. Is reduced as the wood becomes thicker (see line above). When the thickness of the wood is about 0.5 mm, the amount of negative ions due to the wood (projection plate) itself and the amount of negative ions due to the negative ion generating ceramics are balanced, so if the thickness of the projection plate (wood) is 0.3 mm or less, It can be seen that a larger amount of negative ions than the amount of negative ions generated by the wood (projection plate) itself can be obtained by the negative ion generating ceramics.

[0029]

EFFECTS OF THE INVENTION In the veneer-attached health decorative board of the present invention, the thickness of the veneer is appropriately selected, and the adhesive layer (first adhesive layer) directly below the veneer or the first adhesive layer and the same By adding an appropriate amount of at least one rare earth element oxide or at least one rare earth element oxide and negative ion generating ceramics containing zirconium oxide to the lower adhesive layer (second adhesive layer), a good and high-class feeling can be obtained. While maintaining a certain appearance, it is possible to release negative ions, which are effective in maintaining and promoting human health, in a sufficient number in the environment as compared with natural wood.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example of a veneer-attached health care decorative board of the present invention.

[Fig. 2] Fig. 2 is a diagram showing a measurement result of negative ions by a measuring machine A in the first embodiment when the projecting plate is a tug blade.

[Fig. 3] Fig. 3 is a diagram showing a measurement result of negative ions by a measuring machine B in the first embodiment when the projecting plate is a tug blade.

FIG. 4 is a diagram showing changes in the measured value of negative ions when the amount of negative ion generating ceramics added to the adhesive changes.

FIG. 5 is a diagram showing changes in negative ion measurement values when the thickness of wood (projection plate) changes.

[Explanation of symbols]

1: Veneer pasted health veneer 2: Transparent coating 3: Veneer 4: First adhesive layer 5: Fiber sheet 6: Second adhesive layer 7: Wood board

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B32B 18/00 B32B 18/00 C 21/06 21/06 33/00 33/00 E04F 13/08 E04F 13 / 08 AF term (reference) 2B002 AA12 BA01 BB07 BB12 DA02 DA06 2B200 AA01 BA01 BA11 BA15 BB07 CA20 EA06 EE13 FA24 HA20 2B250 AA06 BA03 CA11 DA04 EA02 EA13 FA21 FA33 2100 AP02 AR00H AT00B BA02 BA08 CC00 DG10 DG11 DG15 GB08 JC00 JJ07B

Claims (4)

[Claims] 1. A veneer-attached health decorative board comprising a veneer, an adhesive layer, and a base material made of a wood board or a ceramic noncombustible board, which are sequentially laminated and integrally fixed to each other, wherein the adhesive layer comprises: 5 parts by mass to 30 parts by mass of at least one rare earth element oxide or at least one rare earth element oxide and negative ion generating ceramics containing zirconium oxide per 100 parts by mass of the adhesive layer.
A veneer-attached health decorative board, characterized in that the mass of the veneer is added, and the thickness of the veneer is 0.3 mm or less. 2. A veneer plate, a first adhesive layer, a fibrous sheet, a second adhesive layer, and a base material made of a wood plate or a ceramic non-combustible plate are sequentially laminated and fixed integrally. A veneer-attached health decorative board, wherein the first adhesive layer or the first adhesive layer and the second adhesive layer have at least one rare earth element oxide or at least one rare earth element oxide. And negative ion generating ceramics containing zirconium oxide are added in an amount of 5 to 30 parts by mass with respect to 100 parts by mass of the first adhesive layer or the second adhesive layer. A veneer-laden health decorative board characterized by being 0.3 mm or less. 3. A veneer comprising a veneer, a first adhesive layer, a fibrous sheet, a second adhesive layer, and a base material made of a metal foil or a metal plate, which are sequentially laminated and integrally fixed to each other. A laminated health decorative plate, wherein the first adhesive layer or the first adhesive layer and the second adhesive layer, at least one rare earth element oxide or at least one rare earth element oxide and oxidation Negative ion generating ceramics containing zirconium is added in an amount of 5 to 30 parts by mass with respect to 100 parts by mass of the first adhesive layer or the second adhesive layer, and the veneer has a thickness of 0. A veneer-attached health decorative board characterized by being 3 mm or less. 4. A veneer, a first adhesive layer, a first fibrous sheet, a second adhesive layer, a metal foil, a third adhesive layer, and a second fibrous sheet. And are sequentially laminated and fixed integrally, in the first adhesive layer or the first adhesive layer and the second adhesive layer, at least one rare earth element oxide or at least one rare earth element Negative ion generating ceramics containing oxides and zirconium oxide are added in an amount of 5 to 30 parts by mass with respect to 100 parts by mass of the first adhesive layer or the second adhesive layer. A veneer-laden health decorative board characterized by having a size of 0.3 mm or less.