JP2017155556A - Incombustible decorative plate - Google Patents

Incombustible decorative plate Download PDF

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JP2017155556A
JP2017155556A JP2016042295A JP2016042295A JP2017155556A JP 2017155556 A JP2017155556 A JP 2017155556A JP 2016042295 A JP2016042295 A JP 2016042295A JP 2016042295 A JP2016042295 A JP 2016042295A JP 2017155556 A JP2017155556 A JP 2017155556A
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sealer
sealer layer
layer
decorative sheet
plate
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JP6859597B2 (en
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前川 直輝
Naoteru Maekawa
直輝 前川
戸賀崎 浩昌
Hiromasa Togasaki
浩昌 戸賀崎
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an incombustible decorative plate having excellent incombustibility.SOLUTION: An incombustible decorative plate is formed by providing a plate surface of a tabular incombustibility base material 1 with a decorative sheet 2. Two plate surfaces of the incombustibility base material 1 are provided with respective sealer layers 3A, 3B. The sealer layer 3B provided on the plate surface in an opposite side to a side opposite the decorative sheet 2 has an application amount more than that of the sealer layer 3A provided on the plate surface in the side opposite the decorative sheet 2.SELECTED DRAWING: Figure 1

Description

本発明は不燃化粧板に関する。   The present invention relates to a non-combustible decorative board.

化粧シートと不燃性の板材とを貼り合わせた化粧板は、床面、壁面等の内装や家具などの様々な用途に不燃材料として使用されている。不燃性建築材料として一般的に使用されている火山性ガラス質複層板は、化粧シートを貼り合わせる不燃性の板材として使用可能であるが、化粧シートとの接着性が不十分であるため、化粧シートとの接着性を確保するために、火山性ガラス質複層板の2つの板面のうち化粧シートが接着される側の板面にはシーラー層が設けられている。しかしながら、シーラー層が設けられていることにより、加熱時の総発熱量が大きくなるので、不燃性が低下するという問題があった。   A decorative plate obtained by bonding a decorative sheet and a non-combustible plate material is used as a non-combustible material for various uses such as interiors and furniture such as floor surfaces and wall surfaces. The volcanic glassy multilayer board generally used as a non-combustible building material can be used as a non-combustible board material to which a decorative sheet is bonded, but because the adhesiveness with the decorative sheet is insufficient, In order to ensure adhesion with the decorative sheet, a sealer layer is provided on the plate surface on the side to which the decorative sheet is bonded, out of the two plate surfaces of the volcanic vitreous multilayered plate. However, since the sealer layer is provided, the total calorific value at the time of heating increases, so that there is a problem that nonflammability is lowered.

特開2008−087158号公報JP 2008-087158 A

そこで、本発明は上記のような従来技術が有する問題点を解決し、優れた不燃性を有する不燃化粧板を提供することを課題とする。   Then, this invention makes it a subject to solve the trouble which the above prior arts have, and to provide the nonflammable decorative board which has the outstanding nonflammability.

前記課題を解決するため、本発明の一態様に係る不燃化粧板は、板状の不燃性基材の板面に化粧シートを設けた不燃化粧板であって、不燃性基材の2つの板面にそれぞれシーラー層を設け、化粧シートと相対する側の板面に設けられたシーラー層よりも、化粧シートと相対する側とは反対側の板面に設けられたシーラー層の方が塗布量が多いことを要旨とする。   In order to solve the above-mentioned problems, a non-combustible decorative board according to an aspect of the present invention is a non-combustible decorative board in which a decorative sheet is provided on the plate surface of a plate-like non-combustible base material, and two plates of the non-combustible base material A sealer layer is provided on each side, and the sealer layer provided on the plate surface opposite to the side facing the decorative sheet is applied more than the sealer layer provided on the side opposite the decorative sheet. The gist is that there are many.

本発明によれば、優れた不燃性を有する不燃化粧板を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the nonflammable decorative board which has the outstanding nonflammability can be provided.

本発明の一実施形態に係る不燃化粧板の構造を説明する断面図である。It is sectional drawing explaining the structure of the nonflammable decorative board which concerns on one Embodiment of this invention.

本発明の一実施形態について、図面を参照しながら以下に説明する。図1に示す本実施形態の不燃化粧板は、板状の不燃性基材1の板面に化粧シート2を設けて形成したものである。詳述すると、不燃性基材1と化粧シート2は、粘着剤を含有する粘着剤層4を介して接着されているが、不燃性基材1と化粧シート2との接着性を高めるために、不燃性基材1の2つの板面のうち化粧シート2と相対する側の板面にはシーラー剤を含有するシーラー層3Aが設けられていて、不燃性基材1とシーラー層3Aが粘着剤層4を介して接着されている。   An embodiment of the present invention will be described below with reference to the drawings. The incombustible decorative board of this embodiment shown in FIG. 1 is formed by providing a decorative sheet 2 on the plate surface of a plate-like incombustible substrate 1. Specifically, the incombustible substrate 1 and the decorative sheet 2 are bonded via the adhesive layer 4 containing the adhesive, but in order to increase the adhesion between the incombustible substrate 1 and the decorative sheet 2. A sealer layer 3A containing a sealer agent is provided on the plate surface facing the decorative sheet 2 out of the two plate surfaces of the noncombustible substrate 1, and the nonflammable substrate 1 and the sealer layer 3A are adhered to each other. It is bonded via the agent layer 4.

一方、不燃性基材1の2つの板面のうち化粧シート2と相対する側とは反対側の板面にも、シーラー剤を含有するシーラー層3Bが設けられている。そして、化粧シート2と相対する側の板面に設けられたシーラー層3Aよりも、化粧シート2と相対する側とは反対側の板面に設けられたシーラー層3Bの方が塗布量が多く形成されている。   On the other hand, a sealer layer 3B containing a sealer agent is also provided on a plate surface opposite to the side facing the decorative sheet 2 out of the two plate surfaces of the incombustible substrate 1. And the sealer layer 3B provided on the plate surface opposite to the side facing the decorative sheet 2 has a larger application amount than the sealer layer 3A provided on the plate surface facing the decorative sheet 2. Is formed.

このような本実施形態の不燃化粧板は、不燃性基材1の両板面にシーラー層3A、3Bが設けられており、しかも、化粧シート2と相対する側の板面に設けられたシーラー層3Aよりも、化粧シート2と相対する側とは反対側の板面に設けられたシーラー層3Bの方が塗布量が多く形成されているため、不燃性基材の2つの板面のうち化粧シートと相対する側の板面のみにシーラー層が設けられている不燃化粧板と比べて、加熱時の総発熱量が小さく、優れた不燃性を有している。   In such a non-combustible decorative board according to this embodiment, the sealer layers 3A and 3B are provided on both plate surfaces of the non-combustible substrate 1, and the sealer provided on the plate surface on the side facing the decorative sheet 2 is provided. Since the coating amount of the sealer layer 3B provided on the plate surface opposite to the side facing the decorative sheet 2 is larger than that of the layer 3A, of the two plate surfaces of the incombustible base material Compared with a non-combustible decorative plate in which a sealer layer is provided only on the plate surface facing the decorative sheet, the total calorific value during heating is small and has excellent non-combustibility.

また、不燃性基材1の2つの板面のうち化粧シート2と相対する側とは反対側の板面にもシーラー層3Bが設けられているので、本実施形態の不燃化粧板を他の部材へ装着する際の接着性、施工性が優れている。
よって、本実施形態の不燃化粧板は、床面、壁面等の内装や家具などの様々な用途に、不燃材料として好適に使用することができる。
Moreover, since the sealer layer 3B is provided also on the plate surface opposite to the side facing the decorative sheet 2 out of the two plate surfaces of the non-combustible base material 1, the non-combustible decorative plate of this embodiment is replaced with the other non-combustible decorative plate. Excellent adhesion and workability when mounted on a member.
Therefore, the incombustible decorative board of this embodiment can be suitably used as an incombustible material for various uses such as interiors and furniture such as floor surfaces and wall surfaces.

不燃性基材1の種類は、優れた不燃性を有しているならば特に限定されるものではないが、例えば、火山性ガラス質堆積物粉体、鉱物繊維等から製造される火山性ガラス質複層板があげられる。
また、化粧シート2の種類は特に限定されるものではないが、優れた不燃性を有していることが好ましく、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル樹脂を含有するフィルム又はシートを基材とする化粧シートや、チタン紙を基材とする化粧シートがあげられる。
The type of nonflammable substrate 1 is not particularly limited as long as it has excellent nonflammability. For example, volcanic glass manufactured from volcanic glassy sediment powder, mineral fibers, etc. Quality multilayer board.
The type of the decorative sheet 2 is not particularly limited, but preferably has excellent nonflammability. For example, the decorative sheet 2 is based on a film or sheet containing a polyester resin such as polyethylene terephthalate or polybutylene terephthalate. Examples thereof include a decorative sheet made of a material and a decorative sheet based on titanium paper.

さらに、シーラー層3A、3Bに含有されるシーラー剤の種類は特に限定されるものではないが、例えば、クロロプレンゴム系シーラー剤、ウレタン系シーラー剤、イソシアネート系シーラー剤、エポキシ系シーラー剤があげられる。シーラー層3Aとシーラー層3Bには、同種のシーラー剤を用いてもよいし、異種のシーラー剤を用いてもよい。   Furthermore, the type of the sealer agent contained in the sealer layers 3A and 3B is not particularly limited, and examples thereof include a chloroprene rubber sealer agent, a urethane sealer agent, an isocyanate sealer agent, and an epoxy sealer agent. . The same type of sealer agent may be used for the sealer layer 3A and the sealer layer 3B, or different types of sealer agents may be used.

シーラー層3A、3Bの塗布量(厚さ)の比率は、シーラー層3Aの塗布量よりもシーラー層3Bの塗布量の方が多いならば特に限定されるものではない。ただし、不燃化粧板の加熱時の総発熱量を小さくするためには、化粧シート2と相対する側とは反対側の板面に設けられたシーラー層3Bの塗布量が、化粧シート2と相対する側の板面に設けられたシーラー層3Aの塗布量の1倍以上4倍以下であることが好ましい。   The ratio of the coating amount (thickness) of the sealer layers 3A and 3B is not particularly limited as long as the coating amount of the sealer layer 3B is larger than the coating amount of the sealer layer 3A. However, in order to reduce the total calorific value at the time of heating the non-combustible decorative board, the application amount of the sealer layer 3B provided on the plate surface opposite to the side facing the decorative sheet 2 is It is preferable that it is 1 to 4 times the coating amount of the sealer layer 3A provided on the plate surface on the side to be processed.

また、不燃化粧板の加熱時の総発熱量を小さくするためには、化粧シート2と相対する側とは反対側の板面に設けられたシーラー層3Bの塗布量は、6g/m以上20g/m以下であることが好ましい。
不燃性基材1にシーラー層3A、3Bを設ける方法は特に限定されるものではないが、例えば、スポンジロールを用いたロールコーターによりシーラー剤を塗布する方法があげられる。
Moreover, in order to reduce the total calorific value at the time of heating the non-combustible decorative board, the application amount of the sealer layer 3B provided on the plate surface opposite to the side facing the decorative sheet 2 is 6 g / m 2 or more. It is preferably 20 g / m 2 or less.
Although the method of providing the sealer layers 3A and 3B on the nonflammable substrate 1 is not particularly limited, for example, a method of applying a sealer agent with a roll coater using a sponge roll can be mentioned.

さらに、粘着剤層4に含有される粘着剤の種類は特に限定されるものではないが、例えば、アクリル系粘着剤、酢酸ビニル系粘着剤、エチレン酢酸ビニル系粘着剤、ウレタン系粘着剤、イソシアネート系粘着剤、メラミン樹脂系粘着剤があげられる。
なお、本実施形態は本発明の一例を示したものであって、本発明は本実施形態に限定されるものではない。また、本実施形態には種々の変更又は改良を加えることが可能であり、その様な変更又は改良を加えた形態も本発明に含まれ得る。
Furthermore, although the kind of adhesive contained in the adhesive layer 4 is not specifically limited, for example, acrylic adhesive, vinyl acetate adhesive, ethylene vinyl acetate adhesive, urethane adhesive, isocyanate -Based adhesives and melamine resin-based adhesives.
In addition, this embodiment shows an example of this invention and this invention is not limited to this embodiment. In addition, various changes or improvements can be added to the present embodiment, and forms to which such changes or improvements are added can also be included in the present invention.

〔実施例〕
以下に実施例及び比較例を示して、本発明をさらに具体的に説明する。
(実施例1)
厚さ6mmの火山性ガラス質複層板(大建工業株式会社製の商品名ダイライト)の2つの板面のうち一方の板面に、スポンジロールを用いて、クロロプレンゴム系粘着剤をシーラー剤として塗布して、シーラー層(以下「表側シーラー層」と記す)を設けた。乾燥後の表側シーラー層の質量は6g/mとした。
〔Example〕
The present invention will be described more specifically with reference to the following examples and comparative examples.
Example 1
A sponge roll is used on one of the two plate surfaces of a 6 mm thick volcanic glassy multilayer plate (trade name Dylite manufactured by Daiken Kogyo Co., Ltd.), and a chloroprene rubber adhesive is used as a sealer agent. And a sealer layer (hereinafter referred to as “front side sealer layer”) was provided. The mass of the front sealer layer after drying was 6 g / m 2 .

また、表側シーラー層を設けた火山性ガラス質複層板の2つの板面のうち他方の板面に、クロロプレンゴム系粘着剤をシーラー剤として塗布して、シーラー層(以下「裏側シーラー層」と記す)を設けた。乾燥後の裏側シーラー層の質量は20g/mとした。
次に、表側シーラー層の上にアクリル系粘着剤を厚さ55μmとなるように塗布し、粘着剤層を形成した。そして、粘着剤層の上に、ポリブチレンテレフタレート製フィルムを基材とする化粧シートを貼り合わせ、実施例1の不燃化粧板を製造した。
In addition, a chloroprene rubber-based adhesive is applied as a sealer agent to the other of the two volcanic glassy multilayer plates provided with a front side sealer layer, and a sealer layer (hereinafter referred to as “back side sealer layer”). ). The mass of the back side sealer layer after drying was 20 g / m 2 .
Next, an acrylic pressure-sensitive adhesive was applied on the front side sealer layer to a thickness of 55 μm to form a pressure-sensitive adhesive layer. And the decorative sheet which makes a base material the film made from a polybutylene terephthalate was bonded together on the adhesive layer, and the nonflammable decorative board of Example 1 was manufactured.

(比較例1)
表側シーラー層及び裏側シーラー層を備えていない点を除いて実施例1の不燃化粧板と同様の構成の不燃化粧板を製造した。すなわち、厚さ6mmの火山性ガラス質複層板(大建工業株式会社製の商品名ダイライト)の2つの板面のうち一方の板面に、アクリル系粘着剤を厚さ55μmとなるように塗布し、粘着剤層を形成した。そして、粘着剤層の上に、ポリブチレンテレフタレート製フィルムを基材とする化粧シートを貼り合わせ、比較例1の不燃化粧板を製造した。
(Comparative Example 1)
A non-combustible decorative board having the same configuration as the non-combustible decorative board of Example 1 was produced except that the front-side sealer layer and the back-side sealer layer were not provided. That is, acrylic adhesive is 55 μm thick on one of the two plate surfaces of a 6 mm thick volcanic glassy multilayer plate (trade name Dylite manufactured by Daiken Kogyo Co., Ltd.). This was applied to form an adhesive layer. And the decorative sheet which uses a polybutylene terephthalate film as a base material was bonded together on the adhesive layer, and the nonflammable decorative board of the comparative example 1 was manufactured.

(比較例2)
裏側シーラー層を備えていない点を除いて実施例1の不燃化粧板と同様の構成の不燃化粧板を製造した。すなわち、厚さ6mmの火山性ガラス質複層板(大建工業株式会社製の商品名ダイライト)の2つの板面のうち一方の板面に、スポンジロールを用いて、クロロプレンゴム系粘着剤をシーラー剤として塗布して、表側シーラー層を設けた。乾燥後の表側シーラー層の質量は6g/mとした。
次に、表側シーラー層の上にアクリル系粘着剤を厚さ55μmとなるように塗布し、粘着剤層を形成した。そして、粘着剤層の上に、ポリブチレンテレフタレート製フィルムを基材とする化粧シートを貼り合わせ、比較例2の不燃化粧板を製造した。
(Comparative Example 2)
A non-combustible decorative board having the same configuration as the non-combustible decorative board of Example 1 was produced except that the back-side sealer layer was not provided. That is, a chloroprene rubber adhesive is applied to one of the two plate surfaces of a 6 mm thick volcanic glassy multilayer plate (trade name Dylite manufactured by Daiken Kogyo Co., Ltd.) using a sponge roll. It applied as a sealer agent and provided the front side sealer layer. The mass of the front sealer layer after drying was 6 g / m 2 .
Next, an acrylic pressure-sensitive adhesive was applied on the front side sealer layer to a thickness of 55 μm to form a pressure-sensitive adhesive layer. And the decorative sheet which makes the base material the film made from a polybutylene terephthalate was bonded together on the adhesive layer, and the nonflammable decorative board of the comparative example 2 was manufactured.

(比較例3)
表側シーラー層の厚さと裏側シーラー層の厚さが同一である点を除いて実施例1の不燃化粧板と同様の構成の不燃化粧板を製造した。すなわち、厚さ6mmの火山性ガラス質複層板(大建工業株式会社製の商品名ダイライト)の2つの板面のうち一方の板面に、スポンジロールを用いて、クロロプレンゴム系粘着剤をシーラー剤として塗布して、表側シーラー層を設けた。乾燥後の表側シーラー層の質量は6g/mとした。
(Comparative Example 3)
A non-combustible decorative board having the same configuration as the non-combustible decorative board of Example 1 was manufactured except that the thickness of the front sealer layer and the thickness of the back sealer layer were the same. That is, a chloroprene rubber adhesive is applied to one of the two plate surfaces of a 6 mm thick volcanic glassy multilayer plate (trade name Dylite manufactured by Daiken Kogyo Co., Ltd.) using a sponge roll. It applied as a sealer agent and provided the front side sealer layer. The mass of the front sealer layer after drying was 6 g / m 2 .

また、表側シーラー層を設けた火山性ガラス質複層板の2つの板面のうち他方の板面に、クロロプレンゴム系粘着剤をシーラー剤として塗布して、裏側シーラー層を設けた。乾燥後の裏側シーラー層の質量は6g/mとした。
次に、表側シーラー層の上にアクリル系粘着剤を厚さ55μmとなるように塗布し、粘着剤層を形成した。そして、粘着剤層の上に、ポリブチレンテレフタレート製フィルムを基材とする化粧シートを貼り合わせ、比較例3の不燃化粧板を製造した。
Moreover, the chloroprene rubber-type adhesive was apply | coated as a sealer agent to the other board surface among the two board surfaces of the volcanic glassy multilayer board which provided the front side sealer layer, and the back side sealer layer was provided. The mass of the back side sealer layer after drying was 6 g / m 2 .
Next, an acrylic pressure-sensitive adhesive was applied on the front side sealer layer to a thickness of 55 μm to form a pressure-sensitive adhesive layer. And the decorative sheet which makes the base material the film made from a polybutylene terephthalate was bonded together on the adhesive layer, and the nonflammable decorative board of the comparative example 3 was manufactured.

このようにして製造した実施例1及び比較例1〜3の不燃化粧板の不燃性を、ISO5660に規定されたコーンカロリーメーターによる発熱性試験により評価した。評価項目は、20分間の加熱による総発熱量、最高発熱速度、及び最高発熱速度が連続して200kW/mを超えた時間(表1には「200kW/m超時間」と記す)である。なお、建築基準法が不燃材料に要求する基準は、総発熱量については8MJ/m以下、最高発熱速度が連続して200kW/mを超えた時間については10秒以下である。 The incombustibility of the incombustible decorative plates of Example 1 and Comparative Examples 1 to 3 thus produced was evaluated by a heat generation test using a cone calorimeter specified in ISO5660. The evaluation item is the total calorific value by heating for 20 minutes, the maximum heat generation rate, and the time when the maximum heat generation rate has continuously exceeded 200 kW / m 2 (shown as “over 200 kW / m 2 in Table 1”). is there. The standards required by the Building Standards Act for non-combustible materials are 8 MJ / m 2 or less for the total calorific value, and 10 seconds or less for the time when the maximum heat generation rate continuously exceeds 200 kW / m 2 .

また、実施例1及び比較例1〜3の不燃化粧板については、化粧シートを貼り合わせる際の化粧シートと粘着剤層との接着性(化粧シートの接着性)と、不燃化粧板を他の部材へ粘着剤を介して接着する際の裏側シーラー層と他の部材との接着性(不燃化粧板の施工性)とを評価した。   Moreover, about the incombustible decorative board of Example 1 and Comparative Examples 1-3, the adhesiveness (adhesiveness of a decorative sheet) of a decorative sheet and an adhesive layer at the time of bonding a decorative sheet, and an incombustible decorative board other than The adhesion between the back side sealer layer and other members (workability of non-combustible decorative board) when adhering to the members via an adhesive was evaluated.

Figure 2017155556
Figure 2017155556

これらの評価結果を表1にまとめて示す。比較例1の不燃化粧板は、表側シーラー層及び裏側シーラー層をいずれも備えていないので、総発熱量が低く優れた不燃性を有していた。ただし、化粧シートの接着性と不燃化粧板の施工性は劣っていた。
比較例2の不燃化粧板は、表側シーラー層のみを備えているので、比較例1と比べると総発熱量が高く不燃性が低かった。また、表側シーラー層を備えているため化粧シートの接着性は優れているものの、裏側シーラー層を備えていないので不燃化粧板の施工性は劣っていた。
These evaluation results are summarized in Table 1. Since the nonflammable decorative board of Comparative Example 1 was not provided with either the front side sealer layer or the back side sealer layer, the total calorific value was low and it had excellent nonflammability. However, the adhesiveness of the decorative sheet and the workability of the incombustible decorative board were inferior.
Since the incombustible decorative board of Comparative Example 2 was provided with only the front side sealer layer, the total calorific value was higher than that of Comparative Example 1, and the incombustibility was low. Moreover, since the adhesive property of the decorative sheet is excellent because the front side sealer layer is provided, the workability of the non-combustible decorative board is inferior because the back side sealer layer is not provided.

比較例3の不燃化粧板は、表側シーラー層及び裏側シーラー層を備えているものの、その厚さが同一であるため、比較例1と比べると総発熱量が高く不燃性が低かった。比較例3の不燃化粧板の不燃性は、比較例2と同レベルであった。ただし、表側シーラー層及び裏側シーラー層を備えているので、化粧シートの接着性と不燃化粧板の施工性が優れていた。   Although the incombustible decorative board of Comparative Example 3 was provided with a front side sealer layer and a back side sealer layer, the thickness was the same, so that the total calorific value was higher and the incombustibility was lower than that of Comparative Example 1. The incombustibility of the incombustible decorative board of Comparative Example 3 was the same level as that of Comparative Example 2. However, since the front side sealer layer and the back side sealer layer were provided, the adhesiveness of the decorative sheet and the workability of the incombustible decorative board were excellent.

これに対して実施例1の不燃化粧板は、表側シーラー層及び裏側シーラー層を備えているので、化粧シートの接着性と不燃化粧板の施工性が優れていた。また、表側シーラー層の厚さよりも裏側シーラー層の厚さの方が大きいので、総発熱量は比較例1には及ばないものの、比較例2、3と比べると低く優れた不燃性を有していた。そして、最高発熱速度と、最高発熱速度が連続して200kW/mを超えた時間については、いずれの比較例よりも良好な結果であった。 On the other hand, since the incombustible decorative board of Example 1 was provided with the front side sealer layer and the back side sealer layer, the adhesiveness of the decorative sheet and the workability of the incombustible decorative board were excellent. In addition, since the thickness of the back side sealer layer is larger than the thickness of the front side sealer layer, the total calorific value is not comparable to that of Comparative Example 1, but it is low compared with Comparative Examples 2 and 3 and has excellent nonflammability. It was. And it was a result better than any comparative example about the maximum exothermic rate and the time when the maximum exothermic rate exceeded 200 kW / m < 2 > continuously.

1 不燃性基材
2 化粧シート
3A、3B シーラー層
4 粘着剤層
DESCRIPTION OF SYMBOLS 1 Nonflammable base material 2 Cosmetic sheet 3A, 3B Sealer layer 4 Adhesive layer

Claims (1)

板状の不燃性基材の板面に化粧シートを設けた不燃化粧板であって、前記不燃性基材の2つの板面にそれぞれシーラー層を設け、前記化粧シートと相対する側の板面に設けられたシーラー層よりも、前記化粧シートと相対する側とは反対側の板面に設けられたシーラー層の方が塗布量が多い不燃化粧板。   A non-combustible decorative plate provided with a decorative sheet on the plate surface of a plate-shaped non-combustible base material, wherein a sealer layer is provided on each of two plate surfaces of the non-combustible base material, and the plate surface on the side facing the decorative sheet The non-combustible decorative board has a larger coating amount of the sealer layer provided on the plate surface opposite to the side facing the decorative sheet than the sealer layer provided on the sheet.
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Publication number Priority date Publication date Assignee Title
JP2020153206A (en) * 2019-03-22 2020-09-24 凸版印刷株式会社 Building material for floor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020153206A (en) * 2019-03-22 2020-09-24 凸版印刷株式会社 Building material for floor
JP7342393B2 (en) 2019-03-22 2023-09-12 凸版印刷株式会社 Building materials for floors

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