JPH08318596A - Decorative panel and production thereof - Google Patents

Abstract

PURPOSE: To obtain a decorative panel reduced in warpage though provided with embossed patterns. CONSTITUTION: A composite panel 5 is formed from a core material 2 composed of a wooden plate-shaped article and the medium density fiberboard layer 3 laminated on the single surface of the core material 2 and having embossed patterns on the surface thereof and slightly thicker than the height difference of the embossed patterns and decorative sheets 1 are lapped over both surfaces of the composite panel 5 to produce a decorative panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel and a method for manufacturing the same, and more particularly, to a decorative panel useful for being used as a material for buildings and furniture and a method for manufacturing the same.

[0002]

2. Description of the Related Art As a conventional decorative panel, for example, as shown in FIG. 4, a medium density fiberboard (4) having an uneven pattern on one side to form a front side, and this medium density fiberboard (4). Decorative sheet wrapping on both sides (1)
The one with was known.

As shown in the figure, the medium density fiberboard (4) generally has a coarse density portion (4a) at a substantially central portion in the thickness direction and a dense density portion at substantially both end portions in the thickness direction. (4b), and the density distribution is such that the density gradually increases from the central portion to both end portions in the thickness direction.

[0004]

In such a decorative panel, the density distribution of the medium-density fiber board (4) is well balanced if the uneven pattern is not applied. Even if the decorative sheet (1) is lapped on both the front and back sides, it is hard to warp, but the medium density fiberboard (4) is subjected to extrusion molding, press molding, scraping, etc. to give an uneven pattern. If it is one, the density distribution of the medium-density fiber board (4) is unbalanced and unbalanced. Therefore, when the decorative sheet (1) is wrapped on both the front and back surfaces of the medium-density fiber board (4), it is obtained. Warpage of the decorative panel was likely to be large.

The present invention has been made in view of the above-mentioned facts, and since the object of the present invention is not to have a concavo-convex pattern, a decorative panel capable of reducing warpage and a method for manufacturing the same. To provide.

[0006]

A decorative panel according to claim 1 of the present invention comprises a core material (2) made of a wooden plate and one surface of the core material (2) laminated on the surface. A composite board (5) is formed from a medium density fiberboard layer (3) having an uneven pattern and slightly thicker than the height difference of the unevenness, and the composite board (5) is formed.
It is characterized in that it is provided with a decorative sheet (1) lapped on both sides.

The decorative panel according to claim 2 of the present invention is characterized in that a medium density fiberboard layer (3) is laminated also on the back surface of the composite plate (5).

A decorative panel according to a third aspect of the present invention is characterized in that the wood board is any one selected from the group consisting of medium density fiberboard, plywood, and particle board. .

A decorative panel according to a fourth aspect of the present invention is a decorative panel provided with a decorative sheet (1) lapped on both front and back surfaces of a core material (2) made of a wooden plate-like material. ) Has a coarse layer (2b) and a dense layer (2b).
a) is separated and taken out, and the coarse layer (2b) and the dense layer (2a) are alternately alternated and the dense layer (2a).
Are laminated so as to be located on both front and back surfaces of the core material (2), and further, the dense layer (2a) on the front surface side has an uneven pattern.

In the decorative panel according to claim 5 of the present invention, the structure of the core material (2) made of the wooden plate is selected from the group consisting of medium density fiberboard, plywood, and particle board. It is characterized by being composed of a kind of organization.

According to a sixth aspect of the present invention, in the method for manufacturing a decorative panel, the core material (2) made of a wooden plate has a concavo-convex pattern on one surface, which is slightly thicker than the height difference of the concavities and convexities. The composite sheet (5) is formed by laminating the medium density fiberboard layers (3), and then the decorative sheet (1) is lapped on both front and back surfaces of the composite sheet (5).

[0012]

According to the decorative panel of claim 1 of the present invention,
An uneven pattern is formed on the surface of the medium-density fiberboard layer (3) in advance, and the medium-density fiberboard layer (3) having the uneven pattern formed on the surface of the medium-density fiberboard layer (3) is used as a core material (2). Since the composite plate (5) is formed by laminating on one surface and the decorative sheet (1) is lapped on both front and back surfaces of the composite plate (5), the core material (2) itself is provided with an uneven pattern. Since it is not directly processed and the medium density fiberboard layer (3) is slightly thicker than the height difference of the unevenness, it can be laminated flexibly corresponding to the state of one side of the core material (2), and the core material ( The density distribution of 2) is kept in a balanced state. Therefore, even if the decorative sheet (1) is lapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) having an uneven pattern on the surface and the core material (2), it does not easily warp. is there.

That is, since this decorative panel does not have an uneven pattern, it is possible to reduce warpage.

According to the decorative panel of claim 2 of the present invention, in addition to the case of claim 1, since the middle density fiberboard layer (3) is also laminated on the back surface of the composite plate (5), the core is formed. The medium density fiberboard layer (3) is located on both front and back surfaces of the material (2),
The density distribution can be kept more balanced on both the front and back surfaces of the core material (2). Therefore, even if the decorative sheet (1) is lapped on both the front and back sides, it is difficult to warp.

According to the decorative panel of claim 3 of the present invention, in addition to the case of claim 1 or claim 2, the wooden board is a group consisting of medium density fiberboard, plywood, and particle board. Since it is any one selected from the above, it has an excellent balance of density distribution, is not warpable as the core material (2) and is useful, and can maintain strength and is inexpensive.

According to the decorative panel of claim 4 of the present invention, the core material (2) has a rough layer (2b) and a dense layer (2).
a) is separated and taken out, and the coarse layer (2b) and the dense layer (2a) are alternately alternated and the dense layer (2a).
Since the core material (2) is laminated so as to be located on both front and back surfaces of the core material (2), the density distribution of the core material (2) is in a balanced state, and among the dense layers (2a), Even if the dense layer (2a) on the surface side is provided with an uneven pattern, since it is originally a dense layer (2a), it does not change in a dense state regardless of whether it is a concave portion or a convex portion. , Core material (2)
The density distribution of is kept balanced. Therefore, even if the decorative sheet (1) is lapped on both front and back surfaces of the core material (2) having an uneven pattern on the surface, it is difficult to warp.

According to a fifth aspect of the decorative panel of the present invention, in addition to the case of the fourth aspect, the structure of the core material (2) made of a wooden plate-like material has a medium density fiberboard, plywood, and Since it is composed of one kind of tissue selected from the group consisting of particle board, it has an excellent density distribution balance, is not easily warped as the core material (2), and is also useful. Layer (2b) and dense layer (2a)
Is easy to separate and take out, and the strength can be maintained and it is inexpensive.

According to the method for manufacturing a decorative panel according to claim 6 of the present invention, the medium density fiberboard layer (3) is provided with an uneven pattern on the surface in advance, and the uneven density pattern is formed on the surface. A core material (2) made of a wood plate-like material for the fiberboard layer (3)
Since the composite plate (5) is formed by laminating it on one side of the composite plate (5) and the decorative sheet (1) is lapped on both front and back surfaces of the composite plate (5), the core material (2) itself has an uneven pattern. Is not directly processed, and since the medium-density fiberboard layer (3) is slightly thicker than the height difference of the unevenness, the core material (2) can be flexibly laminated on one side of the core material (2). The density distribution of (2) is kept in a balanced state. Therefore, even if the decorative sheet (1) is lapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) having an uneven pattern on the surface and the core material (2), it does not easily warp. is there.

That is, since this decorative panel does not have an uneven pattern, it is possible to reduce warpage.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings according to the embodiments.

FIG. 1 is a side view schematically showing a decorative panel according to an embodiment of the present invention. FIG. 2 is a side view schematically showing a decorative panel according to another embodiment of the present invention. FIG. 3 is a side view schematically showing a decorative panel according to another embodiment of the present invention.

The decorative panel of the present invention, as shown in FIG. 1 or 2, is laminated on a core material (2) made of a wooden plate and one surface of the core material (2), and has an uneven pattern on the surface. And a medium density fiberboard layer (3) slightly thicker than the height difference of the unevenness, to form a composite board (5), and the composite board (5)
The decorative sheet (1) is provided on both the front and back sides of the sheet.

As the core material (2), a woody plate-like material is used, and specific examples thereof include medium density fiberboard, plywood, and particle board. Thus, when the woody plate-like material is any one selected from the group consisting of medium-density fiberboard, plywood, and particle board, the strength as the core material (2) can be maintained, and the density can be increased. It has an excellent distribution balance, and when the decorative sheet (1) is wrapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) and the core material (2), it becomes even more resistant to warping. It is a thing.

The medium density fiberboard layer (3) is laminated on one surface of the core material (2) and has an uneven pattern on the surface, which is slightly thicker than the height difference of the unevenness. Since the medium-density fiberboard layer (3) is slightly thicker than the height difference of the unevenness as described above, the uneven pattern is formed in advance by extrusion molding, press molding, or shaving. It is easy, and the core material (2) can be flexibly laminated according to the state of one side of the core material (2).

As shown in FIG. 1, the composite plate (5) is
It is formed from the core material (2) and the medium-density fiberboard layer (3). And the above-mentioned decorative sheet (1) is
The front and back surfaces of this composite plate (5) are lapped. Examples of the decorative sheet (1) include, but are not limited to, vinyl chloride resin, paper, melamine resin, wood board, DAP, and the like.

According to the present invention, by adopting the above configuration,
The medium-density fiberboard layer (3) can be extruded, press-molded, shaving, or the like in advance to easily form an uneven pattern on the surface. A fiberboard layer (3) is laminated on one side of a core material (2) made of a wooden board to form a composite board (5), and the decorative sheet (1) is placed on both front and back surfaces of the composite board (5). Since the wrapping is performed, the core material (2) itself is not directly processed to give an uneven pattern, and the medium density fiberboard layer (3) is slightly thicker than the height difference of the unevenness, so the core material (2)
The core material (2) can be laminated flexibly corresponding to the one-sided state, and the density distribution of the core material (2) can be kept in a balanced state.

Therefore, even if the decorative sheet (1) is lapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) having the uneven pattern formed on the surface and the core material (2), the warp It's difficult.

That is, since this decorative panel does not have an uneven pattern, it is possible to reduce warpage.

As shown in FIG. 2, when the medium density fiberboard layer (3) is laminated also on the back surface of the composite plate (5), the medium density fiberboard layer (3) is formed on both front and back surfaces of the core material (2). ) Is located,
The density distribution can maintain a more balanced state on both front and back surfaces of the core material (2). Therefore, even if the decorative sheet (1) is wrapped on both front and back sides,
It becomes difficult to warp.

As shown in FIG. 3, the decorative panel of the present invention further comprises a decorative sheet (1) lapped on both front and back sides of a core material (2) made of a wooden plate, wherein the core is The texture of the material (2) is obtained by separating and extracting the coarse layer (2b) and the dense layer (2a), and alternating the coarse layer (2b) and the dense layer (2a), and The dense layer (2a) is laminated so as to be located on both front and back surfaces of the concentric material (2), and the dense layer (2a) on the front surface side has an uneven pattern. It is a thing. In this case, the structure of the core material (2) made of the above-mentioned woody plate-like material is composed of one kind of structure selected from the group consisting of medium density fiberboard, plywood and particle board. The core material (2) has an excellent balance of density distribution and is less likely to warp as the core material (2) and is useful, and moreover, the rough layer (2b) and the dense layer (2a) are easily separated and taken out. It can maintain its strength and is inexpensive.

As shown in FIG. 3, by adopting such a structure, the structure of the core material (2) is separated into a coarse layer (2b) and a dense layer (2a), and the coarse layer (2b) is taken out. Since the layer (2b) and the dense layer (2a) are alternately laminated and the dense layer (2a) is located on both front and back surfaces of the concentric material (2), The density distribution of the core material (2) is in a balanced state, and even if the dense layer (2a) on the surface side of this dense layer (2a) is provided with an uneven pattern, it is originally a dense layer (2a). ), Whether it is a concave portion or a convex portion, it does not change in a dense state, and as a result,
The density distribution of the core material (2) is kept in a balanced state.

The method of manufacturing a decorative panel of the present invention is
As shown in FIG. 1 and FIG. 2, a medium density fiberboard layer (3) having a concavo-convex pattern on the surface of one side of a core material (2) made of a wooden board and slightly thicker than the height difference of the concavities and convexities is provided. After laminating to form a composite plate (5), the decorative sheet (1) is lapped on both front and back surfaces of the composite plate (5).

By using such a manufacturing method,
An uneven pattern is formed on the surface of the medium-density fiberboard layer (3) in advance, and the medium-density fiberboard layer (3) having the uneven pattern formed on the surface of the medium-density fiberboard layer (3) is used as a core material (2). Since the composite plate (5) is formed by laminating on one surface and the decorative sheet (1) is lapped on both front and back surfaces of the composite plate (5), the core material (2) itself is provided with an uneven pattern. Since it is not directly processed and the medium density fiberboard layer (3) is slightly thicker than the height difference of the unevenness, it can be laminated flexibly corresponding to the state of one side of the core material (2), and the core material ( The density distribution of 2) is kept in a balanced state.

Therefore, even if the decorative sheet (1) is lapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) having an uneven pattern on the surface and the core material (2), the warp occurs. It becomes difficult.

[0035]

According to the decorative panel according to the first aspect of the present invention, the medium density fiberboard layer (3) is provided with an uneven pattern on its surface in advance, and the uneven density pattern is formed on the surface. The board layer (3) is laminated on one surface of the core material (2) made of a wood board to form a composite board (5), and the decorative sheet (1) is lapped on both front and back surfaces of the composite board (5). Therefore, the core material (2) itself is not directly processed to give an uneven pattern, and the medium density fiberboard layer (3) is slightly thicker than the height difference of the unevenness, so that the core material ( It can be laminated flexibly corresponding to the state of 1) on one side, and the density distribution of the core material (2) is kept in a balanced state.

Therefore, even if the decorative sheet (1) is lapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) having an uneven pattern on the surface and the core material (2), the warp occurs. It's difficult.

According to the decorative panel of claim 2 of the present invention, in addition to the case of claim 1, since the medium density fiberboard layer (3) is laminated also on the back surface of the composite plate (5), the core is formed. The medium density fiberboard layer (3) is located on both front and back surfaces of the material (2),
The density distribution can maintain a more balanced state on both front and back surfaces of the core material (2). Therefore, even if the decorative sheet (1) is wrapped on both front and back sides,
It becomes difficult to warp.

According to the decorative panel of claim 3 of the present invention, in addition to the case of claim 1 or 2, the density distribution is excellent and the core material (2) is less likely to warp and is useful. Moreover, the strength can be maintained and the price is low.

According to the decorative panel of claim 4 of the present invention, the density distribution of the core material (2) is in a balanced state, and the dense layer (2a) among the dense layers (2a) is
Even if a) has an uneven pattern, it is originally a dense layer (2
Since it is a), whether it is a concave portion or a convex portion does not change in a dense state, and as a result, the density distribution of the core material (2) is kept in a balanced state.

Therefore, even if the decorative sheet (1) is lapped on both front and back surfaces of the core material (2) having an uneven pattern on the surface, it is difficult to warp.

According to the decorative panel according to claim 5 of the present invention, in addition to the case of claim 4, the balance of the density distribution is excellent, the core material (2) is not easily warped, and it is useful. The rough layer (2b) and the dense layer (2a) can be easily separated and taken out, and the strength can be maintained and the cost is low.

According to the method for producing a decorative panel according to claim 6 of the present invention, the medium density fiberboard layer (3) is provided with an uneven pattern on the surface in advance, and the uneven density is formed on the surface. A core material (2) made of a wood plate-like material for the fiberboard layer (3)
Since the composite plate (5) is formed by laminating it on one side of the composite plate (5) and the decorative sheet (1) is lapped on both front and back surfaces of the composite plate (5), the core material (2) itself has an uneven pattern. Is not directly processed, and since the medium-density fiberboard layer (3) is slightly thicker than the height difference of the unevenness, the core material (2) can be flexibly laminated on one side of the core material (2). The density distribution of (2) is kept in a balanced state.

Therefore, even if the decorative sheet (1) is lapped on both the front and back surfaces of the composite plate (5) consisting of the medium density fiberboard layer (3) having an uneven pattern on the surface and the core material (2), the warp It's difficult.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a decorative panel according to an embodiment of the present invention.

FIG. 2 is a side view schematically showing a decorative panel according to another embodiment of the present invention.

FIG. 3 is a side view schematically showing a decorative panel according to another embodiment of the present invention.

FIG. 4 is a side view schematically showing a decorative panel according to a conventional example.

[Explanation of symbols]

 1 Decorative Sheet 2 Core Material 2a Dense Layer 2b Rough Layer 3 Medium Density Fiberboard Layer 5 Composite Board

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B32B 21/14 B32B 21/14 31/04 7148-4F 31/04

Claims (6)

[Claims] 1. A core material (2) made of a wooden plate, and a core material (2) laminated on one surface of the core material (2) and having a concavo-convex pattern on the surface, which is slightly thicker than the height difference of the concavities and convexities. A composite board (5) is formed from the density fiberboard layer (3), and the composite board (5) is formed.
1. A decorative panel comprising a decorative sheet (1) lapped on both front and back sides of the above. 2. The decorative panel according to claim 1, further comprising a medium density fiberboard layer (3) laminated on the back surface of the composite board (5). 3. The makeup according to claim 1 or 2, wherein the wooden board is any one selected from the group consisting of medium density fiberboard, plywood, and particle board. panel. 4. A decorative panel provided with a decorative sheet (1) lapped on both front and back surfaces of a core material (2) made of a wooden plate-like material, wherein the texture of the core material (2) is a rough layer (2).
b) and the dense layer (2a) are separated and taken out, and the rough layer (2b) and the dense layer (2a) are alternated, and the dense layer (2a) is made of a concentric material ( A decorative panel, which is laminated so as to be positioned on both front and back surfaces of 2), and further has an uneven pattern in a dense layer (2a) on the front surface side. 5. The core material (2) made of a wood plate-like material is composed of any one kind of structure selected from the group consisting of medium density fiberboard, plywood, and particle board. The decorative panel according to claim 4, which is characterized in that: 6. A composite comprising a core material (2) made of a wood plate-like material, and a medium density fiberboard layer (3) having a concavo-convex pattern on the surface and slightly thicker than the height difference of the concavities and convexities on one side. A method for producing a decorative panel, comprising forming a plate (5) and then wrapping a decorative sheet (1) on both front and back surfaces of the composite plate (5).