JP2004076515A - Incombustible decorative laminate - Google Patents

Incombustible decorative laminate Download PDF

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JP2004076515A
JP2004076515A JP2002241611A JP2002241611A JP2004076515A JP 2004076515 A JP2004076515 A JP 2004076515A JP 2002241611 A JP2002241611 A JP 2002241611A JP 2002241611 A JP2002241611 A JP 2002241611A JP 2004076515 A JP2004076515 A JP 2004076515A
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layer
thermosetting resin
impregnated
surface decorative
nonwoven fabric
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JP4047100B2 (en
Inventor
Masaru Hanzawa
半澤　勝
Mitsuyoshi Matsushita
松下　三慶
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Takiron Co Ltd
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Takiron Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an incombustible decorative laminate with the improved gloss of a surface and improved texture to give a feeling of quality by forming roughness in a non-woven fabric layer of a core material sheet to prevent the appearance of fine crinkle patterns on the surface of a surface decorative layer. <P>SOLUTION: A bedding layer 21A formed of a thermosetting resin containing an inorganic aggregate and having a thickness of 0.2-1.0mm is provided between the surface decorative layer 1 formed of a paper material impregnated with the thermosetting resin and the non-woven fabric layer 22 formed of a glass non-woven fabric impregnated with the thermosetting resin. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、不燃性（難燃性のものを含み、本明細書において、「不燃性」という。）化粧板に関し、特に、台所、風呂場、駅舎、体育館等の壁材等の建築用内外装材として好適に使用することができる不燃性化粧板に関するものである。
【０００２】
【従来の技術】
従来、この種の建築用内外装材として使用する化粧板として、水酸化アルミニウム等の無機質骨材を主たる材料とし、これに熱硬化性樹脂を添加してなる基板の表面に、印刷を施した熱硬化性樹脂を含浸させた化粧紙を積層、一体化したものが実用化されている（例えば、特公昭５４−３７０４号公報参照）。
【０００３】
しかし、この化粧板は、基板として、水酸化アルミニウム等の無機質骨材を主たる材料とし、これに熱硬化性樹脂を添加したものを用いるようにしているため、化粧板自体の強度が小さく、特に、不燃化のために基板の無機質骨材の含有率を高くすると、この傾向が一層顕著に現れるという問題があった。
【０００４】
この問題点に対処するために、本件出願人は、熱硬化性樹脂を含浸させたガラス不織布からなる不織布層と、無機質骨材を含有した熱硬化性樹脂層とを積層してなる芯材シートを、複数枚積層してなる基材層の表面に、熱硬化性樹脂を含浸させた紙材からなる表面化粧層を積層するようにした不燃性化粧板を提案している（特開２０００−１３５７５８号公報参照）。
【０００５】
【発明が解決しようとする課題】
しかしながら、この不燃性化粧板では、無機質骨材を含有した熱硬化性樹脂層を介して芯材シートの不織布層の凹凸が、表面化粧層の表面に細かい皺（しぼ）状の模様として現れ、見る角度によって不燃性化粧板の表面の光沢性が低下するという問題があった。
【０００６】
本発明は、上記従来の化粧板の有する問題点に鑑み、芯材シートの不織布層の凹凸が、表面化粧層の表面に細かい皺（しぼ）状の模様が現れることを防止して、不燃性化粧板の表面の光沢性を向上し、風合いを高めて高級感を出すことができる不燃性化粧板を提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記目的を達成するため、本発明の不燃性化粧板は、熱硬化性樹脂を含浸した紙材からなる表面化粧層と、熱硬化性樹脂を含浸したガラス不織布からなる不織布層との間に、０．２〜１．０ｍｍ、より好ましくは、０．３〜０．６ｍｍの厚みを有する無機質骨材を含有した熱硬化性樹脂からなる下地層を設けるようにしたことを特徴とする。
【０００８】
この不燃性化粧板は、表面化粧層と不織布層との間に、０．２〜１．０ｍｍ、より好ましくは、０．３〜０．６ｍｍの厚みを有する無機質骨材を含有した熱硬化性樹脂からなる下地層を設けるようにしたことから、この下地層によって、不織布層の凹凸を吸収して、表面化粧層の表面に細かい皺（しぼ）状の模様が現れることを防止することができる。
【０００９】
この場合において、表面化粧層と下地層の間に、表面化粧層より薄く、かつ熱硬化性樹脂を多く含浸した紙材からなるアンダーレイ層を設けることができる。
【００１０】
これにより、表面化粧層と下地層の接着性を向上させるとともに、表面化粧層の皺模様の発生を一層抑制することができる。
【００１１】
また、表面化粧層の上に、表面化粧層より薄く、かつ熱硬化性樹脂を多く含浸した紙材からなるオーバーレイ層を設けることができる。
【００１２】
これにより、不燃性化粧板に透明感と強い光沢性を付与することができ、不燃性化粧板の風合いを高め、深みを出して、高級感を醸し出すことができる。
【００１３】
【発明の実施の形態】
以下、本発明の不燃性化粧板の実施の形態を図面に基づいて説明する。
【００１４】
図１に、本発明の不燃性化粧板の第１実施例を示す。
この不燃性化粧板Ｐは、熱硬化性樹脂であるメラミン樹脂を含浸した紙材からなる表面化粧層１と、無機質骨材及び熱硬化性樹脂を含有する芯材層２と、熱硬化性樹脂であるメラミン樹脂を含浸した紙材からなる裏面化粧層３とを備えている。
【００１５】
表面化粧層１は、例えば、酸化チタンを含有する紙材にメラミン樹脂を含浸させたものを用いることができる。
紙材は、例えば、秤量７０〜１２０ｇ／ｍ２のものを採用することができ、これにメラミン樹脂を１００〜２００重量％含浸させ、さらに、その表面に任意の印刷層を形成することができる。
この場合、表面化粧層１の表面に細かい皺（しぼ）状の模様が現れることを防止するため、表面化粧層１のメラミン樹脂の含有量を、上記のような含浸率に設定することが望ましい。
【００１６】
芯材層２は、無機質骨材を含有し、かつ熱硬化性樹脂を塗布又は含浸させた複数の芯材シート２０を積層して熱硬化させた層によって構成されている。
芯材シート２０は、ガラス不織布や織布からなり、例えば、無機質骨材として、水酸化アルミニウム、水酸化マグネシウム等の含水無機化合物や炭酸カルシウム、タルク等の充填剤を含有するとともに、メラミン樹脂、フェノール樹脂等の熱硬化性樹脂が含浸又は塗布されている。
そして、より具体的には、この芯材シート２０には、秤量３０〜１００ｇ／ｍ２程度のガラス不織布に、メラミン樹脂、フェノール樹脂等の熱硬化性樹脂を含浸させた後、この不織布層２２の両面に、水酸化アルミニウムや炭酸カルシウム等の無機質骨材及びメラミン樹脂、フェノール樹脂等の熱硬化性樹脂（さらに、必要に応じて他の添加剤）を混合した混合物（本明細書において、「混合樹脂」という。）を塗布して混合樹脂層２１、２１を形成し、３層構造とした芯材シートを用いることができる。
【００１７】
ここで、不織布層２２には、熱硬化性樹脂が８０〜１５０重量％程度含浸されるようにする。
また、無機質骨材には、含水した水酸化アルミニウム等の無機物の粉末を、さらに、不織布層２２内に浸入、含浸されるようにする場合には、粒径５０μｍ以下のものを用いるのが好ましい。
さらに、この含水水酸化アルミニウム等の無機質骨材と炭酸カルシウム等の充填剤を７０〜９０：３０〜１０の割合で混合したものも好ましく用いることができる。
なお、不織布層２２に水酸化アルミニウム等の無機質骨材を含浸させる場合、無機質骨材の含有率は、層間の界面の接着性を考慮して、１０重量％未満とすることが望ましい。
【００１８】
そして、芯材シート２０全体として、熱硬化性樹脂が１０〜２０重量％含有されるようにする。
熱硬化性樹脂の含有量が、２０重量％より多いと、所期の不燃性の性質が得にくくなり、反対に、１０重量％より少ないと、結合力（接着力）が小さく、成形性が悪くなる。
【００１９】
この場合において、表面化粧層１の直下の芯材シートには、混合樹脂層２１の厚みｔを厚く、具体的には、厚みｔが、０．２〜１．０ｍｍ、より好ましくは、０．３〜０．６ｍｍとなるように形成した下地層２１Ａを一方の面に備え、他方の面にはこれより薄い混合樹脂層２１を備えた芯材シート２０Ａを用いるようにしている。
このように、表面化粧層１と、芯材シート２０を構成する熱硬化性樹脂を含浸させたガラス不織布からなる不織布層２２との間に、厚みのある混合樹脂からなる下地層２１Ａを設けるようにしたことから、この下地層２１Ａによって、不織布層２２、特に、ガラス不織布の凹凸を吸収して、表面化粧層１の表面に細かい皺（しぼ）状の模様が現れることを防止することができるものとなる。
【００２０】
ところで、上記実施例においては、芯材シート２０Ａ、２０に、不織布層２２の両面に混合樹脂層２１を形成した３層構造とした芯材シートを用いたが、例えば、不織布層２２の片面のみに混合樹脂層２１を形成した２層構造とした芯材シートを用いることもできる。
【００２１】
また、下地層２１Ａの形成方法は、上記第１実施例に記載したように、不織布層２２の上面に混合樹脂からなる下地層２１Ａを一体に備えた芯材シート２０Ａを用いるほか、図２に示す本発明の不燃性化粧板の第２実施例のように、表面化粧層１と芯材シート２０Ｂ（芯材シート２０Ｂを構成する熱硬化性樹脂を含浸させたガラス不織布からなる不織布層２２）との間に、厚みのある混合樹脂からなる１層構造の下地層２１Ａを配するようにすることもできる。
なお、この第２実施例の不燃性化粧板Ｐにおいては、芯材シート２０Ｂとして、不織布層２２の片面のみに混合樹脂層２１を形成した２層構造とした芯材シートを用いるようにしたが、不織布層２２の両面に混合樹脂層２１を形成した３層構造とした芯材シートを用いることもできる。
【００２２】
裏面化粧層３は、例えば、紙材にメラミン樹脂やフェノール樹脂を含浸させたものを用いることができる。
紙材は、例えば、秤量１２０〜１５０ｇ／ｍ２のものを採用することができ、これにメラミン樹脂を６０〜１５０重量％含浸させ、さらに、その表面に任意の印刷層を形成することができる。
【００２３】
また、このような不燃性化粧板Ｐにおいて、図３に示すように、表面化粧層１の上にオーバーレイ層１１を設けるとともに、表面化粧層１と下地層２の間にアンダーレイ層１２を設けることができる。
これらのオーバーレイ層１１とアンダーレイ層１２は、表面化粧層１より薄く（秤量が小さく）、かつ熱硬化性樹脂であるメラミン樹脂を多く含浸した紙材によって構成することができる。
具体的には、無機質材を含有しない紙材にメラミン樹脂を含浸させたものを用い、紙材には、秤量１０〜２０ｇ／ｍ２のものを使用し、これにメラミン樹脂を２００〜４００重量％、より好ましくは、２５０〜３００重量％含浸させたものを用いることができる。
この場合、オーバーレイ層１１とアンダーレイ層１２の一方のみを設けるようにしたり、オーバーレイ層１１とアンダーレイ層１２を２層以上積層することもできる。
そして、このように、オーバーレイ層１１を設けることにより、不燃性化粧板Ｐに透明感と強い光沢性を付与することができるとともに、表面化粧層１の印刷層をこのオーバーレイ層１１を通して見るため、不燃性化粧板Ｐの風合いを高め、深みを出して、高級感を醸し出すことができ、一方、アンダーレイ層１２を設けることにより、表面化粧層１と下地層２１Ａの接着性を向上させるとともに、下地層２との相乗効果によって、表面化粧層１の皺模様の発生を一層抑制することができるものとなる。
【００２４】
以上、本発明の不燃性化粧板について、複数の実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、各実施例の構成を適宜組み合わせる等、その趣旨を逸脱しない範囲において適宜その構成を変更することが可能である。
【００２５】
【発明の効果】
本発明の不燃性化粧板によれば、表面化粧層と不織布層との間に、０．２〜１．０ｍｍ、より好ましくは、０．３〜０．６ｍｍの厚みを有する無機質骨材を含有した熱硬化性樹脂からなる下地層を設けるようにしたことから、この下地層によって、不織布層の凹凸を吸収して、表面化粧層の表面に細かい皺（しぼ）状の模様が現れることを防止することができ、この結果、不燃性化粧板の表面の光沢性が向上し、不燃性化粧板の風合いを高めて、高級感を醸し出すことができる。
【００２６】
また、表面化粧層と下地層の間に、表面化粧層より薄く、かつ熱硬化性樹脂を多く含浸した紙材からなるアンダーレイ層を設けることにより、表面化粧層と下地層の接着性を向上させるとともに、表面化粧層の皺模様の発生を一層抑制することができる。
【００２７】
また、表面化粧層の上に、表面化粧層より薄く、かつ熱硬化性樹脂を多く含浸した紙材からなるオーバーレイ層を設けることにより、不燃性化粧板に透明感と強い光沢性を付与することができ、不燃性化粧板の風合いを高め、深みを出して、高級感を醸し出すことができる。
【図面の簡単な説明】
【図１】本発明の不燃性化粧板の第１実施例を示す分解断面図である。
【図２】本発明の不燃性化粧板の第２実施例を示す分解断面図である。
【図３】本発明の不燃性化粧板の第３実施例を示す分解断面図である。
【符号の説明】
１　　　表面化粧層
１１　　オーバーレイ層
１２　　アンダーレイ層
２０　　芯材シート
２０Ａ　芯材シート
２０Ｂ　芯材シート
２１　　混合樹脂層
２１Ａ　下地層
２２　　不織布層
３　　　裏面化粧層[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a non-combustible (including non-combustible, herein referred to as "non-combustible") decorative panel, and particularly to a building interior such as a wall material of a kitchen, a bathroom, a station building, a gymnasium, and the like. The present invention relates to a nonflammable decorative board that can be suitably used as an exterior material.
[0002]
[Prior art]
Conventionally, as a decorative board used as an interior / exterior material for this type of building, an inorganic aggregate such as aluminum hydroxide was used as a main material, and a printing was performed on the surface of a substrate obtained by adding a thermosetting resin thereto. Laminated and integrated decorative paper impregnated with a thermosetting resin has been put into practical use (for example, see Japanese Patent Publication No. 54-3704).
[0003]
However, since the decorative board is made of a main material made of an inorganic aggregate such as aluminum hydroxide as a substrate and a thermosetting resin added thereto, the strength of the decorative board itself is small, especially However, when the content of the inorganic aggregate in the substrate is increased for non-combustibility, there is a problem that this tendency appears more remarkably.
[0004]
In order to address this problem, the present applicant has developed a core sheet formed by laminating a nonwoven fabric layer made of a glass nonwoven fabric impregnated with a thermosetting resin and a thermosetting resin layer containing an inorganic aggregate. Has been proposed in which a surface decorative layer made of a paper material impregnated with a thermosetting resin is laminated on the surface of a base material layer formed by laminating a plurality of sheets (Japanese Patent Application Laid-Open No. 2000-2000). 135758).
[0005]
[Problems to be solved by the invention]
However, in this nonflammable decorative board, the unevenness of the nonwoven fabric layer of the core sheet appears as a fine wrinkle-like pattern on the surface of the surface decorative layer via the thermosetting resin layer containing the inorganic aggregate. There is a problem that the glossiness of the surface of the nonflammable decorative board is reduced depending on the viewing angle.
[0006]
The present invention has been made in view of the above-described problems of the conventional decorative board, and prevents unevenness of the nonwoven fabric layer of the core material sheet from showing fine wrinkle-like patterns on the surface of the surface decorative layer. It is an object of the present invention to provide a non-combustible decorative plate which can improve the glossiness of the surface of the decorative plate and enhance the texture to give a sense of quality.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the nonflammable decorative board of the present invention has a surface decorative layer made of a paper material impregnated with a thermosetting resin, and a nonwoven fabric layer made of a glass nonwoven fabric impregnated with a thermosetting resin, An underlayer made of a thermosetting resin containing an inorganic aggregate having a thickness of 0.2 to 1.0 mm, more preferably 0.3 to 0.6 mm is provided.
[0008]
This non-combustible decorative plate is a thermosetting material containing an inorganic aggregate having a thickness of 0.2 to 1.0 mm, more preferably 0.3 to 0.6 mm, between the surface decorative layer and the nonwoven fabric layer. Since the underlayer made of resin is provided, the underlayer absorbs the unevenness of the nonwoven fabric layer and can prevent a fine wrinkle-like pattern from appearing on the surface of the surface decorative layer. .
[0009]
In this case, an underlay layer made of a paper material thinner than the surface decorative layer and impregnated with a large amount of thermosetting resin can be provided between the surface decorative layer and the base layer.
[0010]
Thereby, while improving the adhesiveness of a surface decorative layer and a foundation layer, generation | occurrence | production of the wrinkle pattern of a surface decorative layer can be suppressed further.
[0011]
Further, an overlay layer made of a paper material thinner than the surface decorative layer and impregnated with a large amount of thermosetting resin can be provided on the surface decorative layer.
[0012]
As a result, it is possible to impart transparency and strong gloss to the non-combustible decorative board, to enhance the texture of the non-combustible decorative board, to provide depth, and to create a sense of quality.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the nonflammable decorative board of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 shows a first embodiment of the nonflammable decorative board of the present invention.
This nonflammable decorative board P has a surface decorative layer 1 made of a paper material impregnated with a melamine resin as a thermosetting resin, a core material layer 2 containing an inorganic aggregate and a thermosetting resin, and a thermosetting resin. And a back surface decorative layer 3 made of a paper material impregnated with a melamine resin.
[0015]
As the surface decorative layer 1, for example, a paper material containing titanium oxide impregnated with a melamine resin can be used.
As the paper material, for example, a paper material having a weighing of 70 to 120 g / m 2 can be employed, and the melamine resin is impregnated with 100 to 200% by weight, and an arbitrary print layer can be formed on the surface thereof. .
In this case, it is desirable to set the content of the melamine resin of the surface decorative layer 1 to the above-mentioned impregnation ratio in order to prevent a fine wrinkle (grain) pattern from appearing on the surface of the surface decorative layer 1. .
[0016]
The core material layer 2 is composed of a layer obtained by laminating a plurality of core material sheets 20 containing an inorganic aggregate and being coated or impregnated with a thermosetting resin and thermosetting.
The core material sheet 20 is made of a glass nonwoven fabric or a woven fabric. For example, as the inorganic aggregate, a water-containing inorganic compound such as aluminum hydroxide and magnesium hydroxide, a filler such as calcium carbonate and talc, and a melamine resin, A thermosetting resin such as a phenol resin is impregnated or applied.
More specifically, the core material sheet 20 is prepared by impregnating a thermosetting resin such as a melamine resin or a phenol resin into a glass nonwoven fabric having a weight of about 30 to 100 g / m 2 , A mixture of inorganic aggregates such as aluminum hydroxide and calcium carbonate, and thermosetting resins such as melamine resins and phenolic resins (and other additives as necessary) (in the present specification, A core material sheet having a three-layer structure can be used by forming the mixed resin layers 21 and 21 by applying “mixed resin”).
[0017]
Here, the non-woven fabric layer 22 is impregnated with a thermosetting resin at about 80 to 150% by weight.
In addition, in the case where the inorganic aggregate is further impregnated and impregnated into the nonwoven fabric layer 22 with a powder of an inorganic substance such as hydrated aluminum hydroxide, it is preferable to use one having a particle size of 50 μm or less. .
Further, a mixture of the inorganic aggregate such as hydrated aluminum hydroxide and the filler such as calcium carbonate at a ratio of 70 to 90:30 to 10 can also be preferably used.
When the nonwoven fabric layer 22 is impregnated with an inorganic aggregate such as aluminum hydroxide, the content of the inorganic aggregate is desirably less than 10% by weight in consideration of the adhesion at the interface between the layers.
[0018]
Then, the thermosetting resin is contained in the core material sheet 20 as a whole in an amount of 10 to 20% by weight.
If the content of the thermosetting resin is more than 20% by weight, it is difficult to obtain the desired nonflammable properties. Conversely, if the content is less than 10% by weight, the bonding strength (adhesive strength) is small and the moldability is low. become worse.
[0019]
In this case, the thickness t of the mixed resin layer 21 is increased in the core sheet immediately below the surface decorative layer 1, and specifically, the thickness t is 0.2 to 1.0 mm, more preferably, 0.1 to 1.0 mm. An underlayer 21A formed to have a thickness of 3 to 0.6 mm is provided on one surface, and a core sheet 20A having a thinner mixed resin layer 21 on the other surface is used.
Thus, the base layer 21A made of a thick mixed resin is provided between the surface decorative layer 1 and the nonwoven fabric layer 22 made of the glass nonwoven fabric impregnated with the thermosetting resin constituting the core sheet 20. Because of this, the underlayer 21A can absorb the unevenness of the nonwoven fabric layer 22, particularly the glass nonwoven fabric, and prevent the appearance of the fine wrinkle (grain) pattern on the surface of the surface decorative layer 1. It will be.
[0020]
By the way, in the above-described embodiment, the core sheet 20A, 20 has a three-layered core sheet in which the mixed resin layer 21 is formed on both sides of the nonwoven layer 22. For example, only one side of the nonwoven layer 22 is used. A core material sheet having a two-layer structure in which a mixed resin layer 21 is formed on the base material can also be used.
[0021]
In addition, as described in the first embodiment, the method of forming the base layer 21A uses a core sheet 20A integrally provided with a base layer 21A made of a mixed resin on the upper surface of the nonwoven fabric layer 22, and FIG. As shown in the second embodiment of the nonflammable decorative board of the present invention shown in the drawings, the surface decorative layer 1 and the core sheet 20B (nonwoven fabric layer 22 made of glass nonwoven fabric impregnated with thermosetting resin constituting core sheet 20B) The underlayer 21A having a one-layer structure made of a mixed resin having a large thickness may be disposed between the two.
In the non-combustible decorative board P of the second embodiment, a core sheet having a two-layer structure in which the mixed resin layer 21 is formed only on one side of the nonwoven fabric layer 22 is used as the core sheet 20B. Alternatively, a core sheet having a three-layer structure in which the mixed resin layer 21 is formed on both surfaces of the nonwoven fabric layer 22 may be used.
[0022]
As the back face decorative layer 3, for example, a paper material impregnated with a melamine resin or a phenol resin can be used.
As the paper material, for example, a paper material having a weighing of 120 to 150 g / m 2 can be employed, and the melamine resin is impregnated with 60 to 150% by weight, and an arbitrary print layer can be formed on the surface. .
[0023]
Further, in such a nonflammable decorative board P, as shown in FIG. 3, an overlay layer 11 is provided on the surface decorative layer 1, and an underlay layer 12 is provided between the surface decorative layer 1 and the base layer 2. be able to.
The overlay layer 11 and the underlay layer 12 can be made of a paper material which is thinner (having a smaller weight) than the surface decorative layer 1 and which is impregnated with a large amount of a melamine resin which is a thermosetting resin.
Specifically, a paper material containing no inorganic material impregnated with a melamine resin is used, and a paper material weighing 10 to 20 g / m 2 is used. %, More preferably 250 to 300% by weight.
In this case, only one of the overlay layer 11 and the underlay layer 12 may be provided, or two or more overlay layers 11 and the underlay layer 12 may be laminated.
By providing the overlay layer 11 in this way, it is possible to impart transparency and strong gloss to the nonflammable decorative board P, and to view the printed layer of the surface decorative layer 1 through the overlay layer 11, The texture of the non-combustible decorative board P can be enhanced and the depth can be increased to give a sense of quality. On the other hand, by providing the underlay layer 12, the adhesiveness between the surface decorative layer 1 and the base layer 21A can be improved. By the synergistic effect with the base layer 2, the generation of wrinkle patterns on the surface decorative layer 1 can be further suppressed.
[0024]
As described above, the nonflammable decorative board of the present invention has been described based on a plurality of embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and the configurations of the respective embodiments are appropriately combined. The configuration can be appropriately changed without departing from the spirit of the invention.
[0025]
【The invention's effect】
According to the nonflammable decorative board of the present invention, between the surface decorative layer and the nonwoven fabric layer, an inorganic aggregate having a thickness of 0.2 to 1.0 mm, more preferably 0.3 to 0.6 mm is contained. Since the underlayer made of the thermosetting resin is provided, the underlayer absorbs the unevenness of the nonwoven fabric layer and prevents the appearance of fine wrinkle-like patterns on the surface of the surface decorative layer. As a result, the glossiness of the surface of the non-combustible decorative board is improved, and the texture of the non-combustible decorative board can be enhanced, thereby giving a sense of quality.
[0026]
In addition, by providing an underlay layer made of paper material thinner than the surface decorative layer and impregnated with a large amount of thermosetting resin between the surface decorative layer and the base layer, the adhesion between the surface decorative layer and the base layer is improved. At the same time, the generation of wrinkle patterns on the surface decorative layer can be further suppressed.
[0027]
In addition, by providing an overlay layer made of paper material thinner than the surface decorative layer and impregnated with a large amount of thermosetting resin on the surface decorative layer, the non-flammable decorative board can be provided with transparency and strong gloss. It can enhance the texture of the non-combustible decorative board, give it depth and give it a sense of luxury.
[Brief description of the drawings]
FIG. 1 is an exploded sectional view showing a first embodiment of a nonflammable decorative board according to the present invention.
FIG. 2 is an exploded sectional view showing a second embodiment of the nonflammable decorative board according to the present invention.
FIG. 3 is an exploded sectional view showing a third embodiment of the nonflammable decorative board according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Surface decorative layer 11 Overlay layer 12 Underlay layer 20 Core material sheet 20A Core material sheet 20B Core material sheet 21 Mixed resin layer 21A Underlayer 22 Nonwoven fabric layer 3 Back decorative layer

Claims (4)

熱硬化性樹脂を含浸した紙材からなる表面化粧層と、熱硬化性樹脂を含浸したガラス不織布からなる不織布層との間に、０．２〜１．０ｍｍの厚みを有する無機質骨材を含有した熱硬化性樹脂からなる下地層を設けるようにしたことを特徴とする不燃性化粧板。Contains an inorganic aggregate having a thickness of 0.2 to 1.0 mm between a surface decorative layer made of a paper material impregnated with a thermosetting resin and a nonwoven fabric layer made of a glass nonwoven fabric impregnated with a thermosetting resin. A non-combustible decorative plate comprising a base layer made of a thermosetting resin. 下地層の厚みを、０．３〜０．６ｍｍにしたことを特徴とする請求項１記載の不燃性化粧板。The non-combustible decorative board according to claim 1, wherein the thickness of the underlayer is 0.3 to 0.6 mm. 表面化粧層と下地層の間に、表面化粧層より薄く、かつ熱硬化性樹脂を多く含浸した紙材からなるアンダーレイ層を設けたことを特徴とする請求項１又は２記載の不燃性化粧板。3. The non-combustible cosmetic according to claim 1, wherein an underlay layer made of paper material thinner than the surface decorative layer and impregnated with a large amount of thermosetting resin is provided between the surface decorative layer and the base layer. Board. 表面化粧層の上に、表面化粧層より薄く、かつ熱硬化性樹脂を多く含浸した紙材からなるオーバーレイ層を設けたことを特徴とする請求項１、２又は３記載の不燃性化粧板。4. The non-combustible decorative plate according to claim 1, wherein an overlay layer made of a paper material thinner than the surface decorative layer and impregnated with a large amount of thermosetting resin is provided on the surface decorative layer.
JP2002241611A 2002-08-22 2002-08-22 Incombustible decorative board Expired - Fee Related JP4047100B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006009494A (en) * 2004-06-29 2006-01-12 Takiron Co Ltd Noncombustible decorative panel
JP2006175685A (en) * 2004-12-22 2006-07-06 Takiron Co Ltd Molded product having photocatalytic function
JP2013180533A (en) * 2012-03-05 2013-09-12 Aica Kogyo Co Ltd Fabric-tone decorative sheet
JP2016137726A (en) * 2016-04-25 2016-08-04 アイカ工業株式会社 Method for production of woven fabric-like decorative sheet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006009494A (en) * 2004-06-29 2006-01-12 Takiron Co Ltd Noncombustible decorative panel
JP2006175685A (en) * 2004-12-22 2006-07-06 Takiron Co Ltd Molded product having photocatalytic function
JP2013180533A (en) * 2012-03-05 2013-09-12 Aica Kogyo Co Ltd Fabric-tone decorative sheet
JP2016137726A (en) * 2016-04-25 2016-08-04 アイカ工業株式会社 Method for production of woven fabric-like decorative sheet

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