JP2004250919A - Exterior finishing material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior finishing material having durability (dimension stability, strength, etc.) against the outdoor environment while retaining the beauty of natural wood grain. <P>SOLUTION: A decoration veneer 10 is bonded on the outside face of a base material 20 to form an exterior finishing material 1. The base material 20 is formed of a wooden material impregnated with a synthetic resin improving the dimension stability. Meanwhile, the base material 20 may be formed by mutually laminating a plurality of veneers and bonding them together. The decoration veneer 10 is preferably as thick as 1.0-3.0 mm. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an exterior material used as a finishing material for a building outer wall, a finishing material for an outdoor structure, or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, lumber (single board) has been used as an exterior material of a wooden building, taking advantage of the beauty of natural wood grain that gives a sense of height and warmth (see Non-Patent Document 1).
[0003]
[Non-patent document 1]
Fukui Prefecture Tree House Cooperative, “Proposal of Tree House” (refer to “Outer Wall Materials”), [online], [searched on January 7, 2003], Internet <URL: http: // www. ki-ie. com / teian. html>
[0004]
[Problems to be solved by the invention]
However, there has been a problem that the exterior material made of the conventional lumber (single plate) has no durability in an outdoor environment (particularly, wetness and dryness due to rainwater, dew, moisture, and the like).
For example, a veneer stretched on the outer surface of the outer wall expands and contracts due to irradiation of direct sunlight, absorption of rainwater, and the like, and is likely to be deformed such as warped or distorted. Further, since the degree of deformation of each exterior material differs depending on the tree species, the variation in the grain direction, and the like, the appearance may be significantly impaired or partial destruction may occur.
Then, this invention was made in order to solve the said problem, and makes it a subject to provide the exterior material which has the aesthetics of a natural wood grain, and is dimensionally stable even in an outdoor environment.
[0005]
[Means for Solving the Problems]
The present invention is configured to solve the above-mentioned problems, and the invention according to claim 1 is an exterior material formed by bonding a decorative veneer to an outer surface of a base material, wherein the exterior material is formed. The material is characterized by being wood impregnated with a synthetic resin for improving dimensional stability.
[0006]
According to the exterior material according to claim 1, since the base material is wood impregnated with a synthetic resin that improves dimensional stability, the base material can be subjected to temperature change, wet and dry, direct sunlight irradiation, and the like. Deformation such as warping and distortion can be suppressed, and dimensional stability can be improved. Since the decorative veneer is bonded to such a base material, the dimensional stability of the decorative veneer can be improved. Further, since the decorative veneer is adhered to the outer surface of the base material, a beautiful natural wood grain such as a beautiful natural wood grain can be used to provide a beautiful appearance. Even if the decorative veneer is damaged and the base material is exposed, the base material is made of wood, so that no foreign impression is given.
[0007]
Preferably, the wood is formed by laminating and bonding a plurality of veneers to each other. By stacking and bonding the veneers, it is possible to reduce the variation in quality between veneers and improve the overall dimensional stability.
[0008]
Further, it is preferable that the decorative veneer has a thickness of 1.0 mm to 3.0 mm. As long as the decorative veneer has a thickness of 1.0 mm or more, it is preferable in terms of cost without weathering for a considerable period of time. Further, if the decorative veneer is too thick, the difference in deformation stress increases, and deformation such as warpage or distortion is likely to occur. Therefore, the thickness of the veneer is preferably 3.0 mm or less.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
Hereinafter, an embodiment of an exterior material according to the present invention will be described in detail with reference to the drawings as appropriate. In the drawings to be referred to, FIG. 1 is a perspective view of an exterior material according to the first embodiment.
[0010]
As shown in FIG. 1, the exterior material 1 is formed by bonding a decorative veneer 10 to one of the outer surfaces of a base material 20. The adhesive A is used for bonding the base material 20 and the decorative veneer 10.
[0011]
The base material 20 is a veneer cut from wood. Examples of the wood species include, but are not particularly limited to, domestic materials such as hippopotamus, beech, sina, sen, nara, lauans such as red lauan, tangir, almon, mayapis, meranchi, selaya, kapur In addition to conifers such as southern lumber (Lauan), apitons, conifers such as Southern Yellow Pine (North America), radiata pine (South America, Australia and New Zealand), other conifers from Russia, and African lumber can be used.
[0012]
Next, a method for manufacturing the substrate 20 will be described. First, a veneer is impregnated with a phenolic resin aqueous solution as a synthetic resin for improving the dimensional stability of wood, and the veneer is dried at a temperature at which the phenolic resin does not harden. Thereafter, the phenolic resin is cured by a heat treatment. That is, by drying the base material 20 at a temperature at which the phenolic resin does not cure, the water contained in the base material 20 is volatilized to form voids in the cell walls, and the voids are filled with the phenolic resin. Then, since the phenolic resin is cured in this state, the cell tissue is reinforced, and the dimensional stability of the base material 20 is improved.
By the way, dimensional stability means that deformation such as warpage or distortion hardly occurs even by temperature change, wet and dry, direct sunlight irradiation, etc., and that the dimensional stability is stable.
[0013]
Note that the phenolic resin has an effect of improving the dimensional stability of wood and also has an antiseptic effect on wood, so that it is excellent for use as an exterior material applied outdoors. However, in the first embodiment of the present invention, a phenol-based resin is used as the synthetic resin, but the present invention is not limited to this, and a melamine-based resin, a glyoxal-based resin, and a polyethylene glycol-based resin are used. A synthetic resin having dimensional stability to wood, such as a vinyl resin or the like, can be used as appropriate.
[0014]
The decorative veneer 10 is a veneer that is adhered to the outer surface of the base material 20 for aesthetic purposes. The decorative veneer 10 is formed by thinly cutting wood, and the plate thickness here is assumed to be 1.0 mm to 3.0 mm.
The tree species of the raw wood of the veneer veneer 10 is not particularly limited. For example, domestic wood is zelkova, oak, sen, hippo, kiri, hinoki, cedar and the like. ), Teak, walnut, kokutan, rosewood and the like are preferably used.
If the decorative veneer 10 has a high moisture content, cracks (hair cracks) may occur on the outer surface due to irradiation of sunlight or the like. To prevent this, for example, the decorative veneer 10 may be used after being dried to a moisture content of 10% or less. Good.
[0015]
In the present embodiment, an alkali phenol-based resin-based adhesive is used as the adhesive A for bonding the decorative veneer 10 and the substrate 20, but is not particularly limited, and a resorcinol resin-based adhesive is used. A polyurethane resin-based adhesive, an isocyanate resin-based adhesive, or the like can be suitably used.
[0016]
In order to bond the decorative veneer 10 and the substrate 20, the adhesive A is first applied to the outer surface of the substrate 20, and the decorative veneer 10 is laminated thereon. Then, in this state, the adhesive A is cured by hot pressing with a hot press, and the decorative veneer 10 and the base material 20 are bonded. Thus, the exterior material 1 is obtained.
[0017]
According to the packaging material 1 configured as described above, the following effects can be obtained.
First, since the base material 20 is wood impregnated with a phenolic resin that improves the dimensional stability of the wood, the base material 20 may be warped or distorted by temperature change, wet and dry, direct sunlight irradiation, or the like. Is hardly deformed, and the shape can be stabilized. And since the decorative veneer 10 was bonded to such a base material 20, the dimensional stability of the decorative veneer 10 can also be improved. Further, since the decorative veneer 10 is adhered to the outer surface of the base material 20, a beautiful natural grain can be produced and a beautiful feeling can be produced.
Even if the veneer veneer 10 is damaged and the base material 20 is exposed, the base material 20 is made of wood, so that the same texture is generated, so that a different impression is not given.
[0018]
Further, since the decorative veneer 10 has a thickness of 1.0 mm or more, it does not weather for a considerable period of time, and is preferable in terms of cost. Further, since the decorative veneer 10 has a thickness of 3.0 mm or less, the difference in deformation stress is small, and deformation such as warpage and distortion due to temperature change, wet and dry, direct sunlight irradiation, etc. can be suppressed, and dimensional stability can be reduced. Can be improved.
[0019]
Further, the present invention can be implemented as follows.
FIG. 2 is a cross-sectional view of a packaging material as a modification.
In the above-described embodiment, the decorative veneer 10 is configured to be bonded to only one of the outer surfaces of the base material 20, but the present invention may be configured to be bonded to two or more surfaces.
For example, as shown in FIG. 2A, a configuration in which the decorative veneer 10 is bonded to two opposing surfaces of the base material 20, and as shown in FIG. A configuration in which the decorative veneer 10 is bonded to two surfaces, as shown in FIG. 2C, the decorative veneer 10 is bonded to one surface of the base material 20 and two surfaces orthogonal to the surface. As shown in FIG. 2 (d), a configuration in which the decorative veneer 10 is bonded so as to surround the four surfaces of the base material 20, and all six surfaces of the base material 20 A configuration (not shown) in which the decorative veneer 10 is adhered so as to surround it (not shown), and the like are given.
By adhering the decorative veneer 10 to two or more surfaces, an exterior material can be obtained in which direction the surface is to be designed, depending on the intended application and location.
[0020]
[Second embodiment]
Hereinafter, an exterior material according to the second embodiment will be described with reference to the drawings as appropriate. FIG. 3 is a perspective view of an exterior material according to the second embodiment. In the second embodiment, since the configuration of the exterior material according to the first embodiment is partially changed, the same components are denoted by the same reference numerals and the description thereof will be omitted. Omitted.
[0021]
As shown in FIG. 3, the exterior material 2 is formed by bonding a decorative veneer 10 to one outer surface of a base material 30.
[0022]
The base material 30 is configured by stacking a plurality of veneers 31, 32, and 33. The tree species of the veneers 31, 32, and 33 are not particularly limited, but the same tree species as the base material 20 can be applied.
[0023]
The manufacturing method of the base material 30 is as follows. First, each veneer 31, 32, 33 is impregnated with a phenol-based resin aqueous solution, which is a synthetic resin for improving the dimensional stability of wood, and the veneers 31, 32, 33 are dried at a temperature at which the phenol-based resin does not cure. Let it. Thereafter, the phenolic resin is cured by a heat treatment. That is, by drying the veneers 31, 32, and 33 at a temperature at which the phenolic resin does not cure, the water contained in the veneers 31, 32, and 33 is volatilized to form voids in the cell walls. Is filled with a phenolic resin. Since the phenolic resin is cured in this state, the cell tissue is reinforced, and the dimensional stability of the veneers 31, 32, and 33 is improved.
[0024]
The adhesives A are applied to the surfaces of the veneers 31, 32, and 33 obtained in this manner, which are in contact with each other, and are sequentially stacked so that the grain is perpendicular to each other. Then, in this state, the adhesive A is cured by thermocompression bonding using a hot press or the like. Thus, the substrate 30 is obtained.
The step of bonding decorative veneer 10 and base material 30 is the same as the step of bonding decorative veneer 10 and base material 20 in the first embodiment.
[0025]
According to the exterior member 2 configured as described above, the following effects can be obtained.
Since the base material 30 is configured by laminating the veneers 31, 32, and 33, the quality variation among the veneers 31, 32, and 33 can be reduced, and the overall dimensional stability can be improved. .
Further, since the base material 30 is composed of veneers 31, 32, and 33 impregnated with a phenolic resin, which is a synthetic resin that improves the dimensional stability of wood, the base material 30 is subjected to temperature changes, wet and dry, direct sunlight, and the like. Also, deformation such as warpage and distortion hardly occurs, and the shape can be stabilized. And since the decorative veneer 10 is bonded to such a base material 30, the dimensional stability of the decorative veneer 10 is also improved.
Furthermore, since the decorative veneer 10 is adhered to the outer surface of the base material 30, a beautiful natural grain can be produced and an aesthetic feeling can be produced.
Even if the veneer veneer 10 is damaged and the substrate 30 is exposed, since the substrate 30 is composed of the veneers 31, 32, and 33 made of wood, the same texture is generated. It does not give a different impression.
[0026]
Although the second embodiment has been described above, the present invention is not limited to the above-described embodiment, and a design change can be appropriately made without departing from the gist of the present invention.
For example, in the second embodiment described above, the veneers 31, 32, and 33 are impregnated with the same type of synthetic resin. However, the present invention is not limited to this, and different types of synthetic resins may be impregnated. . Specifically, since the veneer 32 is sandwiched between the veneer 31 and the veneer 33 and is particularly easily corroded, the veneer 32 may be impregnated with a preservative having an antiseptic effect.
Examples of preservatives having an antiseptic effect include so-called chromium / copper / arsenic compound veneer preservatives, phenol / inorganic fluoride veneer veneer preservatives, alkylammonium compound veneer preservatives, chromium / copper / zinc Compound veneer preservatives, aliphatic metal salt-based veneer preservatives and the like can be mentioned.
[0027]
In the second embodiment, the veneers 31, 32, and 33 are previously impregnated with a phenolic resin as a synthetic resin, but are not impregnated with the phenolic resin, but are bonded first to form a laminated material. Later, a phenolic resin may be impregnated. In this case, the production efficiency can be improved as compared with impregnating each of the veneers 31, 32, 33 with a phenolic resin.
[0028]
Further, in the second embodiment, the base material 30 is composed of three single plates 31, 32, and 33, but the present invention is not limited to this, and the base material may be appropriately formed of two or more single plates. Can be configured. By stacking a plurality of veneers and weakening the individuality between the veneers, the dimensional stability of the base material can be improved.
Further, in the above-described embodiment, the decorative veneer 10 having no decoration is adhered to the mere plate-shaped substrate 30 (20). However, the present invention is not limited to this, and the dimensional stability is improved. As long as the decorative veneer is bonded to the base material, the shape of the decorative veneer or the base material can be appropriately changed. For example, in order to provide a decoration, the shape of the veneer veneer 10 may be changed by providing a groove shape on the surface thereof, and the thickness of the veneer veneer 10 or each of the veneers 31, 32, 33 may be changed. You may make it.
[0029]
Furthermore, in the above-described embodiment, the decorative veneer 10 is bonded to the entire outer surface of one of the substrates 20 and 30. However, the present invention is not limited to this, and only a part of the outer surface is used. It is good also as composition which adheres a veneer veneer. For example, a configuration in which two decorative veneers 10 are bonded to one outer surface of the base material 30 may be adopted.
In addition, also in the second embodiment, as in the modification described in the first embodiment, the decorative veneer 10 is formed by bonding to two or more surfaces of the base material 30 (see FIG. 2). In addition, an exterior material having a design property from all angles can be obtained.
[0030]
【The invention's effect】
According to the exterior material of the first aspect, even when the temperature changes, wet and dry, and direct sunlight irradiation, it is possible to suppress deformation of the base material such as warpage and distortion, and to improve the dimensional stability of the base material. it can. And since a decorative veneer is bonded to such a base material, the dimensional stability of the decorative veneer can also be improved.
In addition, since the decorative veneer is adhered to the outer surface of the base material, a beautiful natural grain such as a beautiful natural grain can be provided with a beautiful natural grain.
Even if the veneer veneer is damaged and the base material is exposed, no foreign impression is given because the base material is wood.
[0031]
According to the exterior material of the second aspect, by laminating and bonding a plurality of veneers, it is possible to reduce variation in quality between veneers and improve overall dimensional stability.
[0032]
According to the exterior material of the third aspect, since the thickness of the decorative veneer is 1.0 mm or more, it does not weather for a considerable period of time and is preferable in cost. In addition, since the thickness of the decorative veneer is 3.0 mm or less, the difference in deformation stress is small, and deformation such as warpage or distortion hardly occurs.
[Brief description of the drawings]
FIG. 1 is a perspective view of an exterior material according to a first embodiment.
FIG. 2 is a cross-sectional view of a modified example of an exterior material.
FIG. 3 is a perspective view of an exterior material according to a second embodiment.
[Explanation of symbols]
1, 2 exterior material 10 decorative veneer 20 base material 30 base material 31, 32, 33 veneer A adhesive

Claims (3)

An exterior material formed by bonding a decorative veneer to an outer surface of a base material, wherein the base material is wood impregnated with a synthetic resin for improving dimensional stability. The exterior material according to claim 1, wherein the wood is formed by laminating and bonding a plurality of veneers to each other. 3. The exterior material according to claim 1, wherein the decorative veneer has a thickness of 1.0 mm to 3.0 mm. 4.

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