JP2019093653A - Laminate - Google Patents

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JP2019093653A
JP2019093653A JP2017225945A JP2017225945A JP2019093653A JP 2019093653 A JP2019093653 A JP 2019093653A JP 2017225945 A JP2017225945 A JP 2017225945A JP 2017225945 A JP2017225945 A JP 2017225945A JP 2019093653 A JP2019093653 A JP 2019093653A
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sheet material
metal sheet
thickness
joined
resin sheet
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俊輔 柳井
Toshisuke Yanai
俊輔 柳井
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Sekisui Jushi Corp
Sekisui Jushi Plametal Corp
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Sekisui Jushi Corp
Sekisui Jushi Plametal Corp
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Abstract

To provide a laminate which can suppress warpage and deformation and the like even when one metal sheet material is thinned in front and rear metal sheet materials.SOLUTION: A laminate includes: a resin sheet material 20; a first metal sheet material 10 which is joined to one surface of the resin sheet material 20 and is made of aluminum or an aluminum alloy; a cardboard 30 joined to the other surface of the resin sheet material 20; and a second metal sheet material 40 which is joined to the cardboard 30 and is made of aluminum or an aluminum alloy thinner than the first metal sheet material 10. The cardboard 30 has Taber stiffness of 20-80 mN m and is a single layer.SELECTED DRAWING: Figure 1

Description

本発明は、主に天井材や壁材等といった内装材に用いられる積層体に関する。   The present invention relates to a laminate used mainly for interior materials such as ceiling materials and wall materials.

一般に、合成樹脂製のシートの両面に金属シートを接合した積層体は、屋根材、内壁材等の内装材として用いられていた。このような積層体は、金属板単体を用いる場合に比べて安価で軽量であって切断等の加工性にも優れており、更に曲げ強度等にも優れたものである。   Generally, the laminated body which joined the metal sheet to both surfaces of the synthetic resin sheet | seat was used as interior materials, such as a roof material and an inner wall material. Such a laminate is cheaper and lighter than the case of using a single metal plate, is excellent in workability such as cutting, and is further excellent in bending strength and the like.

このような積層体は、両面の金属シートが別種の材料であったり同じ材料であっても厚さが異なったりすると、温度変化により積層体に反りが発生しやすいため、一般には、同じ材質で同じ厚さといった実質的に同じ材料が用いられていことが多い。   In such a laminate, if the metal sheets on both sides are different types of material or the same material, the laminate is likely to warp due to temperature change, so the same material is generally used. Often substantially the same material is used, such as the same thickness.

例えば、金属シートとして、チタンを用いた場合は、耐蝕性に優れたものとなるが、チタンは高価なので、特許文献１には、樹脂シートの一方の面にチタン板、他方の面に２０〜１００℃における熱膨張係数が１１×１０−６／℃以下のステンレス鋼板を、それぞれ接着してなる金属−樹脂複合板が開示されている。このように、両面の金属シートが別種の材料であっても、特定の物性の材料を用いることによって、反りや変形を抑制できるものである。 For example, when titanium is used as the metal sheet, the corrosion resistance is excellent. However, since titanium is expensive, it is disclosed in Patent Document 1 that a titanium plate is formed on one side of the resin sheet and 20 to the other side. There is disclosed a metal-resin composite plate formed by bonding stainless steel plates having a thermal expansion coefficient of 11 × 10 −6 / ° C. or less at 100 ° C., respectively. As described above, even if the metal sheets on both sides are different types of materials, warpage and deformation can be suppressed by using a material having specific physical properties.

特開平０９−１９５５１８号公報Unexamined-Japanese-Patent No. 09-195518

ところで、特許文献１の金属−樹脂複合板を内装材に用いる場合は、設置場所が天井面や壁面等に取付けられる化粧材用途が多いため、屋内側に面する化粧面側は平滑性や強度等を考慮すると金属シートが必要であるが、天井面や壁面側である取付面側には、金属シートは必ずしも必要なく、むしろ取付面の不陸等を考慮すると、ある程度不陸に追従しやすい材質であることが好ましく、加えて、反りや変形等が抑制できるものが求められていた。   By the way, when using the metal-resin composite board of patent document 1 as an interior material, since there are many uses of a decorative material in which an installation place is attached to a ceiling surface, a wall surface, etc., the smoothness or strength of the decorative surface side facing indoor side A metal sheet is necessary when considering etc. However, the metal sheet is not always necessary on the ceiling or wall side of the mounting surface, but rather it is easy to follow the uneven surface to a certain extent when the mounting surface is considered uneven or the like It is preferable that it is a material, and in addition, what can suppress a curvature, a deformation | transformation, etc. was calculated | required.

そこで本発明は上記の如き問題点に鑑みてなされたものであり、表裏の金属シート材において一方の金属シート材を薄くしても反りや変形等を抑制できる積層体を提供せんとするものである。   Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a laminate capable of suppressing warpage, deformation and the like even if one of the metal sheet materials in the metal sheet material on the front and back is made thinner. is there.

上記課題を解決するために、本発明者は鋭意研究した結果、一般的に、金属シート材，樹脂シート材，金属シート材を接合した積層体において、一方の金属シート材を薄くすると積層体の成形時、あるいはその後の冷熱繰り返しにより反りが発生するが、樹脂シート材と薄い金属シート材との間に所定の厚さと強度を有する厚紙を配置することによって反りを抑えられることが分かり、冷熱繰り返しによる反りの発生がほとんど生じないことを見いだし、本発明を完成するに至った。   In order to solve the above problems, as a result of intensive research conducted by the present inventor, in general, in a laminate in which a metal sheet material, a resin sheet material and a metal sheet material are joined, when one metal sheet material is made thinner, Although warping occurs due to cold heat at the time of molding or subsequent cooling, it has been found that warpage can be suppressed by arranging a thick paper having a predetermined thickness and strength between the resin sheet material and the thin metal sheet material, so that the cold heat cycle is repeated. It has been found that almost no occurrence of warpage occurs due to the above, and the present invention has been completed.

すなわち、本発明に係る積層体は、樹脂シート材と、前記樹脂シート材の一方の面に接合されたアルミニウム又はアルミニウム合金製の第一の金属シート材と、前記樹脂シート材の他方の面に接合される厚紙と、前記厚紙の樹脂シート材と反対側に接合されて第一の金属シート材よりも薄いアルミニウム又はアルミニウム合金製の第二の金属シート材とを備え、前記厚紙は、テーバーこわさが２０〜８０ｍＮ・ｍであって、かつ、単層であること特徴とするものである。   That is, the laminate according to the present invention comprises a resin sheet material, a first metal sheet material made of aluminum or aluminum alloy joined to one surface of the resin sheet material, and the other surface of the resin sheet material. And a second metal sheet material made of aluminum or an aluminum alloy which is bonded to the opposite side of the thick sheet and is made opposite to the resin sheet material of the thick sheet and which is thinner than the first metal sheet material; Is 20 to 80 mN · m, and is a single layer.

本発明において、前記第一の金属シート材の厚さは、０．０５〜０．３ｍｍであることが好ましい。   In the present invention, the thickness of the first metal sheet material is preferably 0.05 to 0.3 mm.

本発明によれば、両面の金属シートが異なる厚さであっても反りや変形等を抑制することができる。   According to the present invention, warpage, deformation and the like can be suppressed even if the metal sheets on both sides have different thicknesses.

本発明に係る積層体において、実施の一形態を示す概略模式図である。BRIEF DESCRIPTION OF THE DRAWINGS The laminated body which concerns on this invention WHEREIN: It is a schematic diagram which shows one Embodiment.

次に、本発明を実施するための最良の形態について図面を参照し、具体的に説明する。   Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

図１は、本発明に係る積層体の実施の一形態を示す概略模式図である。図１に示すように、本発明に係る積層体Ｐは、第一の金属シート材１０、樹脂シート材２０、厚紙３０、第二の金属シート材４０を備えたものである。   FIG. 1 is a schematic view showing an embodiment of a laminate according to the present invention. As shown in FIG. 1, a laminate P according to the present invention comprises a first metal sheet material 10, a resin sheet material 20, a thick paper 30, and a second metal sheet material 40.

第一の金属シート材１０は、アルミニウム又はアルミニウム合金製であって、樹脂シート材２０の一方の面に接合されている。本形態では、樹脂シート材２０側にプライマー層（図示せず）を有しており、樹脂シート材２０との接合力を高めることができる。また、樹脂シート材２０とは反対側であって、積層体Ｐの表面に当たる面は、本形態では、合成樹脂からなる化粧層（図示せず）を備えている。化粧層を形成する合成樹脂は、設置場所に合わせてその種類や色彩を適宜選択することができる。また、第一の金属シート材１０と化粧層との接合力を高めるために、更に中間層を設けてもよい。第一の金属シート材１０の厚さは、成型性、強度、取り扱い性等を考慮すると０．０５〜１ｍｍが好ましく、更には０．１〜０．５ｍｍが好ましい。   The first metal sheet material 10 is made of aluminum or an aluminum alloy, and is joined to one surface of the resin sheet material 20. In this embodiment, a primer layer (not shown) is provided on the resin sheet material 20 side, and the bonding strength with the resin sheet material 20 can be enhanced. Moreover, it is an opposite side to the resin sheet material 20, Comprising: The surface which hits the surface of the laminated body P is equipped with the decorative layer (not shown) which consists of synthetic resins in this form. The kind and color of the synthetic resin forming the decorative layer can be appropriately selected according to the installation place. Moreover, in order to increase the bonding strength between the first metal sheet material 10 and the decorative layer, an intermediate layer may be further provided. The thickness of the first metal sheet material 10 is preferably 0.05 to 1 mm, more preferably 0.1 to 0.5 mm, in consideration of moldability, strength, handleability, and the like.

樹脂シート材２０は、一方の面には第一の金属シート材１０が接合され、他方の面には後述する厚紙３０が接合されている。樹脂シート材２０は、熱可塑性樹脂からなるものであって、ポリエチレン、ポリプロピレン等のポリオレフィンのような成形しやすい樹脂が挙げられる。また、樹脂シート材２０の両面は、接着層（図示せず）を介して、第一の金属シート材１０、厚紙３０と接合されている。   The first metal sheet material 10 is bonded to one surface of the resin sheet material 20, and a thick paper 30 described later is bonded to the other surface. The resin sheet material 20 is made of a thermoplastic resin, and examples thereof include easily molded resins such as polyolefins such as polyethylene and polypropylene. Further, both surfaces of the resin sheet material 20 are bonded to the first metal sheet material 10 and the thick paper 30 via an adhesive layer (not shown).

樹脂シート材２０で用いる合成樹脂は、本形態に限定されるものではなく、例えばポリブテン、ポリブテン、ポリイソプレン、ポリメチルペンテン、エチレン−プロピレン共重合体、エチレン−酢酸ビニル共重合体、エチレン−α−オレフィン共重合体、エチレン−エチルアクリレート共重合体、エチレン−不飽和カルボン酸共重合体金属中和物等、或いはそれらの２種以上の混合物等から適宜選択して使用することができる。   The synthetic resin used in the resin sheet material 20 is not limited to this embodiment, and for example, polybutene, polybutene, polyisoprene, polymethylpentene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-α -An olefin copolymer, an ethylene-ethyl acrylate copolymer, an ethylene-unsaturated carboxylic acid copolymer metal neutralization product etc., or the mixture of 2 or more types of them etc. can be used suitably.

一般に第一の金属シート材１０と樹脂シート材２０は熱膨張率が大きく異なるので、熱膨張率による影響を抑えることができるものがより好ましい。例えば、樹脂シート材２０を発泡させたものを用いることによって、熱膨張・収縮に生じる応力を緩和することができる。また、樹脂シート材２０は、炭酸カルシウムや水酸化アルミニウム、水酸化マグネシウム等の骨材を含むものとすることによって、熱膨張率を低くして、第一の金属シート材１０との熱膨張率の差を小さくすることができる。   In general, since the first metal sheet material 10 and the resin sheet material 20 have large thermal expansion coefficients, it is more preferable to be able to suppress the influence of the thermal expansion coefficient. For example, by using a foamed resin sheet material 20, it is possible to relieve the stress generated in thermal expansion and contraction. Further, the resin sheet material 20 contains an aggregate such as calcium carbonate, aluminum hydroxide, magnesium hydroxide or the like to lower the coefficient of thermal expansion, and the difference in coefficient of thermal expansion with the first metal sheet material 10 Can be made smaller.

厚紙３０は、一方の面に樹脂シート材２０が接合されて、他方の面に第二の金属シート材４０が接合されている。厚紙３０の種類は、紙管用の厚紙等、いわゆる腰が強い材料が好ましく、具体的には、テーバーこわさと呼ばれる物性値でその強さを表すことができる。テーバーこわさは、ＪＩＳ Ｐ８１２５に基づいて算出される値であって、ある特定の角度に曲げるのに必要な曲げモーメントで表し、値が大きいほど腰が強い材料であることを示す。   In the thick paper 30, the resin sheet material 20 is joined to one surface, and the second metal sheet material 40 is joined to the other surface. The type of cardboard 30 is preferably a so-called stiff material such as cardboard for paper tubes, and specifically, its strength can be represented by a physical property value called Taber stiffness. Taber stiffness is a value calculated based on JIS P8125, and is expressed by a bending moment required to bend to a specific angle, and indicates that the larger the value, the stronger the material.

厚紙３０としては、腰がないと、積層体を作成したときに反りが生じてしまうが、腰が強すぎても反りが生じる場合がある。厚紙３０のテーバーこわさとしては、２０〜８０ｍＮ・ｍが好ましい。   As the thick paper 30, if there is no stiffness, warping occurs when the laminate is prepared, but warp may occur even if the stiffness is too strong. The Taber stiffness of the thick paper 30 is preferably 20 to 80 mN · m.

第二の金属シート材４０は、アルミニウム又はアルミニウム合金であって、厚紙３０の樹脂シート材２０とは反対側の面に接合されている。本形態では、厚紙３０と接着剤による接着層を介して接合されている。第二の金属シート材４０は、積層体Ｐを天井面や壁面等に取付ける際に、天井面側や壁面側に配置されるとすると、積層体Ｐに反りが発生しない範囲でできる限り薄い方が、積層体Ｐの軽量を図れるとともに、コストも低減できる。厚みとしては、第一の金属シート材１０よりも薄いことが好ましく、０．０５ｍｍ未満が好ましい。   The second metal sheet material 40 is aluminum or an aluminum alloy, and is joined to the surface of the thick paper 30 opposite to the resin sheet material 20. In this embodiment, it is bonded to the cardboard 30 via an adhesive layer made of an adhesive. When the second metal sheet member 40 is disposed on the ceiling surface side or the wall surface side when the laminate P is attached to the ceiling surface or the wall surface, the second metal sheet material 40 is as thin as possible within a range in which the laminate P does not generate warpage. However, while being able to aim at the weight reduction of the laminated body P, cost can also be reduced. The thickness is preferably thinner than the first metal sheet material 10, and preferably less than 0.05 mm.

〔実施例１〕
第一の金属シート材１０として厚さ０．１ｍｍのＪＩＳ呼称の３０００系のアルミニウム合金の樹脂シート材２０側に面する方にプライマー層を有するもの、マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着層、樹脂シート材２０として厚さ３ｍｍで比重０．５のＨＤＰＥを主成分とする発泡ポリエチレンシート、マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着シート、厚紙３０として厚さ０．５ｍｍの紙管用の厚紙（日本紙管工業株式会社製、品番：ＦＮＮ−Ｂ１）、マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着シート、第二の金属シート材４０として０．００７ｍｍのＪＩＳ呼称の１Ｎ３０系アルミニウム箔をこの順で積層して、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各部材を接合して、１０ｃｍ角で厚さ４ｍｍの積層体からなる試験片を得た。 Example 1
Adhesive having a thickness of 0.1 mm and having a primer layer on the side facing the resin sheet material 20 side of a JIS series 3000 aluminum alloy of 0.1 mm thickness, adhesive of 50 μm thickness made of maleic acid-modified polyethylene As a resin sheet material 20, a foamed polyethylene sheet mainly composed of HDPE of 3 mm in thickness and a specific gravity of 0.5, an adhesive sheet of 50 μm in thickness composed of maleic acid modified polyethylene, for a paper tube of 0.5 mm in thickness as a thick paper 30 A thick paper (made by Nippon Paper Industries Co., Ltd., product number: FNN-B1), a 50 μm thick adhesive sheet made of maleic acid-modified polyethylene, and a 0.007 mm JIS 1N30 aluminum foil as a second metal sheet 40 the laminated in this order, 190 ° C. by a heat pressing machine, 10kg / cm 2, bonding the respective members in 3 minutes conditions Te to obtain a test piece formed of a laminate of a thickness of 4mm at 10cm square.

〔反りの評価〕
得られた試験片について反りの評価を実施した。以下に記載の各実施例、比較例についても同様な反りの評価を実施した。具体的な評価方法としては、試験片作成後、室温で２４時間養生し、反りの発生の有無を確認した。反りが発生する場合は、第一の金属シート１０側の中央部が凹む場合と、第二の金属シート４０側の中央部が凹む場合とがあるが、いずれの場合であっても、凹んだ面側を下にして平坦面を有する基準平板上に載置し、基準平板と凹んだ面との間の隙間を測定し、以下の基準に基づいて評価し、評価結果を表１又は表２の〔反りの評価〕の〔試験片作成後〕の欄に記載した。なお、反りの発生が分かりにくい場合は、第一の金属シート１０側及び第二の金属シート４０側をそれぞれ下側にして隙間を測定した。
○は、第一の金属シート１０側、第二の金属シート４０側、それぞれを下にして基準平板上に載置した場合に、隙間の最大値がいずれも１ｍｍ以下の場合
×は、第一の金属シート１０側、第二の金属シート４０側、それぞれを下にして基準平板上に載置した場合に、隙間の最大値がいずれか一方でも１ｍｍを超える場合 [Evaluation of warpage]
Evaluation of warpage was performed on the obtained test pieces. The same evaluation of warpage was carried out for each of the examples and comparative examples described below. As a specific evaluation method, after preparing a test piece, curing was performed at room temperature for 24 hours, and the occurrence of warpage was confirmed. When warping occurs, the central portion on the first metal sheet 10 side may be recessed or the central portion on the second metal sheet 40 side may be recessed. The sample is placed on a reference flat plate having a flat surface with the surface side down, and the gap between the reference flat plate and the recessed surface is measured, evaluated based on the following criteria, and the evaluation results are shown in Table 1 or Table 2. It described in the column of [after test piece preparation] of [evaluation of curvature]. In addition, when generation | occurrence | production of curvature was confusing, the 1st metal sheet 10 side and the 2nd metal sheet 40 side were made into the lower side, respectively, and the clearance gap was measured.
In the case where the first metal sheet 10 side and the second metal sheet 40 side are respectively placed on the reference flat plate with the lower side, the maximum value of the gap is 1 mm or less for all. When the maximum value of the gap exceeds 1 mm at any one of the metal sheet 10 side and the second metal sheet 40 side, when placed on the reference flat plate with each side down

続いて、冷熱繰り返し試験後の反りの評価をした。具体的には、−２０度から８０度（相対湿度６５％ＲＨ）の温室度条件の雰囲気内に試験片を入れて、５サイクル後に取り出して２４時間室温にて養生した後、上述と同様に隙間の最大寸法を測定し、上述と同様の基準に基づいて評価し、評価結果を表１又は表２の〔反りの評価〕の〔冷熱繰り返し試験後〕の欄に記載した。   Subsequently, the warpage after the cooling and heating test was evaluated. Specifically, the test piece is put in an atmosphere of -20 ° C. to 80 ° C. (relative humidity 65% RH) in a greenhouse degree condition, taken out after 5 cycles, and aged at room temperature for 24 hours, as described above The maximum dimension of the gap was measured and evaluated based on the same criteria as described above, and the evaluation results were described in the column of [after the cold heat repeat test] in [Evaluation of warp] in Table 1 or Table 2.

Figure 2019093653
Figure 2019093653

Figure 2019093653
Figure 2019093653

（注１）積層体の形成に利用した材料であって、その厚さも成形体形成前の各材料の厚さを示すものである。
（注２）実施例１の欄に記載の樹脂シート。
（注３）実施例４の欄に記載の樹脂シート。 (Note 1) A material used for forming a laminate, and the thickness also indicates the thickness of each material before forming a formed body.
(Note 2) The resin sheet described in the column of Example 1.
(Note 3) The resin sheet described in the column of Example 4.

〔テーバーこわさの測定〕
各試験片を構成する各材料の部材のテーバーこわさを測定した。テーバーこわさは、ＪＩＳ ＪＩＳ Ｐ８１２５に基づいて測定した。測定結果を表３に示す。

Figure 2019093653
[Measurement of Taber stiffness]
The Taber stiffness of the members of each material constituting each test piece was measured. Taber stiffness was measured based on JIS JIS P8125. The measurement results are shown in Table 3.
Figure 2019093653

（注４）比較例４の欄に記載の厚紙。
（注５）比較例５の欄に記載の厚紙。
（注６）比較例７の欄に記載の厚紙。
（注７）比較例８の欄に記載の厚紙。 (Note 4) The cardboard described in the column of Comparative Example 4.
(Note 5) The thick paper described in the column of Comparative Example 5.
(Note 6) The thick paper described in the column of Comparative Example 7.
(Note 7) The cardboard described in the column of Comparative Example 8.

〔実施例２〕
第一の金属シート材１０として厚さ０．２ｍｍのＪＩＳ呼称の３０００系のアルミニウム合金の樹脂シート材２０側に面する方にプライマー層を有するものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Example 2
The same material as in Example 1 except that the first metal sheet material 10 used was a 0.2 mm thick JIS series 3000 series aluminum alloy resin sheet material 20 facing the resin sheet material 20 side. The respective materials were joined using a heat press at 190 ° C. and 10 kg / cm 2 for 3 minutes in a heat press machine to obtain a 10 mm square test piece having a thickness of 4 mm.

〔実施例３〕
厚紙３０として厚さ１ｍｍの紙管用の厚紙（日本紙管工業株式会社製、品番：ＦＮＮ−ＮＣ）を用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 [Example 3]
The same material as in Example 1 was used at 190 ° C. with a heat press machine, except that a thick paper for paper tubes of 1 mm in thickness (manufactured by Nippon Paper Tube Industry Co., Ltd., product number: FNN-NC) was used as the thick paper 30. Each material was joined on 10 kg / cm < 2 > and 3 minutes conditions, and the test piece of thickness 4 mm was obtained by 10 cm square.

〔実施例４〕
樹脂シート材２０として、ポリエチレン、水酸化マグネシウムを３０：７０で混練した配合物を押出成形により厚さ３ｍｍに成形したものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Example 4
A heat press machine was prepared using the same material as in Example 1, except that a mixture obtained by extruding a mixture of polyethylene and magnesium hydroxide at 30:70 into a thickness of 3 mm was used as the resin sheet material 20. The respective materials were joined under the conditions of 190 ° C. and 10 kg / cm 2 for 3 minutes to obtain a 10 mm square test piece with a thickness of 4 mm.

〔実施例５〕
第一の金属シート材１０として厚さ０．２ｍｍのＪＩＳ呼称の３０００系のアルミニウム合金の樹脂シート材２０側に面する方にプライマー層を有するものを用い、厚紙３０として厚さ１ｍｍの紙管用の厚紙（日本紙管工業株式会社製、品番：ＦＮＮ−ＮＣ）を用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 [Example 5]
As the first metal sheet 10, using a primer having a thickness of 0.2 mm and a primer layer on the side facing the resin sheet 20 of a 3000 series aluminum alloy of JIS designation JIS, for a thick paper 30 with a thickness of 1 mm Conditions of 190 ° C., 10 kg / cm 2 , 3 minutes in a heat press using the same material as in Example 1 except that the thick paper (manufactured by Nippon Paper Industries Co., Ltd., product number: FNN-NC) was used The respective materials were joined together to obtain a 10 mm square test piece 4 mm thick.

〔実施例６〕
第一の金属シート材１０として厚さ０．５ｍｍのＪＩＳ呼称の３０００系のアルミニウム合金の樹脂シート材２０側に面する方にプライマー層を有するものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 [Example 6]
The same material as in Example 1 except that as the first metal sheet material 10, one having a primer layer on the side facing the resin sheet material 20 side of the aluminum alloy of 3000 series of JIS designation 0.5 mm thick was used. The respective materials were joined using a heat press at 190 ° C. and 10 kg / cm 2 for 3 minutes in a heat press machine to obtain a 10 mm square test piece having a thickness of 4 mm.

〔実施例７〕
第一の金属シート材１０として厚さ０．５ｍｍのＪＩＳ呼称の３０００系のアルミニウム合金の樹脂シート材２０側に面する方にプライマー層を有するものを用い、厚紙３０として厚さ１ｍｍの紙管用の厚紙（日本紙管工業株式会社製、品番：ＦＮＮ−ＮＣ）を用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 [Example 7]
The first metal sheet 10 is a 0.5 mm thick JIS series 3000 series aluminum alloy using a primer having a primer layer on the side facing the resin sheet 20, for a thick paper 30 with a thickness of 1 mm Conditions of 190 ° C., 10 kg / cm 2 , 3 minutes in a heat press using the same material as in Example 1 except that the thick paper (manufactured by Nippon Paper Industries Co., Ltd., product number: FNN-NC) was used The respective materials were joined together to obtain a 10 mm square test piece 4 mm thick.

〔比較例１〕
厚紙３０を用いなかった以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 1
Using the same material as in Example 1 except that the thick paper 30 was not used, each material was joined under the conditions of 190 ° C., 10 kg / cm 2 for 3 minutes with a heat press machine, and a thickness of 4 mm in 10 cm square. Test pieces were obtained.

〔比較例２〕
第二の金属シート材４０を用いなかった以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 2
Each material is joined under the conditions of 190 ° C., 10 kg / cm 2 and 3 minutes with a heat press using the same material as in Example 1 except that the second metal sheet material 40 is not used, 10 cm Test pieces of 4 mm in thickness were obtained at the corners.

〔比較例３〕
厚紙３０として厚さ０．１５ｍｍの水酸化アルミニウム紙（オリベスト株式会社製、品番：ＷＢ−１５０）を用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 3
190 ° C., 10 kg by a heat press using the same material as in Example 1 except using aluminum hydroxide paper (Olivest Co., product number: WB-150) with a thickness of 0.15 mm as the thick paper 30 Each material was joined on condition of 3 cm / cm 2 for 3 minutes to obtain a 10 mm square and 4 mm thick test piece.

〔比較例４〕
厚紙３０として厚さ０．１５ｍｍの水酸化アルミニウム紙（オリベスト株式会社製、品番：ＷＢ−１５０）を三枚と、その層間に無水マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着シートを配置して熱溶着により積層一体化したものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 4
Three sheets of aluminum hydroxide paper (Olivest Co., Ltd., product number: WB-150) with a thickness of 0.15 mm as the thick paper 30 and an adhesive sheet with a thickness of 50 μm made of maleic anhydride-modified polyethylene disposed between the layers Each material is joined under the conditions of 190 ° C., 10 kg / cm 2 and 3 minutes with a heat press machine using the same material as in Example 1 except that the laminated and integrated by heat welding is used, 10 cm Test pieces of 4 mm in thickness were obtained at the corners.

〔比較例５〕
厚紙３０として厚さ０．１５ｍｍの水酸化アルミニウム紙（オリベスト株式会社製、品番：ＷＢ−１５０）を四枚と、その層間に無水マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着シートを配置して熱溶着により積層一体化したものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 5
Four sheets of aluminum hydroxide paper (Olivest Co., Ltd., product number: WB-150) with a thickness of 0.15 mm as the thick paper 30 and an adhesive sheet with a thickness of 50 μm made of maleic anhydride-modified polyethylene are disposed between the four sheets. Each material is joined under the conditions of 190 ° C., 10 kg / cm 2 and 3 minutes with a heat press machine using the same material as in Example 1 except that the laminated and integrated by heat welding is used, 10 cm Test pieces of 4 mm in thickness were obtained at the corners.

〔比較例６〕
厚紙３０として厚さ０．１５ｍｍの炭酸カルシウム紙（オリベスト株式会社製、品番：ＮＣＡ−１６０）を用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 6
The same material as in Example 1 was used at 190 ° C. and 10 kg / kg with a heat press machine, except that calcium carbonate paper 0.15 mm thick (Olivest Co., product number: NCA-160) was used as the thick paper 30. Each material was joined on condition of cm 2 for 3 minutes to obtain a 10 mm square and 4 mm thick test piece.

〔比較例７〕
厚紙３０として厚さ０．１５ｍｍの炭酸カルシウム紙（オリベスト株式会社製、品番：ＮＣＡ−１６０）を三枚と、その層間に無水マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着シートを配置して熱溶着により積層一体化したものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 7
Three sheets of calcium carbonate paper (Olivest Co., product number: NCA-160) with a thickness of 0.15 mm as the thick paper 30 and an adhesive sheet with a thickness of 50 μm made of maleic anhydride-modified polyethylene are disposed between the three Using the same material as in Example 1 except that laminated and integrated by welding, the respective materials are joined under the conditions of 190 ° C., 10 kg / cm 2 and 3 minutes by a heat press machine, and a 10 cm square is obtained. Test pieces of 4 mm in thickness were obtained.

〔比較例８〕
厚紙３０として厚さ０．１５ｍｍの炭酸カルシウム紙（オリベスト株式会社製、品番：ＮＣＡ−１６０）を四枚と、その層間に無水マレイン酸変性ポリエチレンからなる厚さ５０μｍの接着シートを配置して熱溶着により積層一体化したものを用いた以外は、実施例１と同じ材料を用いて、熱プレス機にて１９０℃、１０ｋｇ／ｃｍ２、３分の条件で各材料を接合して、１０ｃｍ角で厚さ４ｍｍの試験片を得た。 Comparative Example 8
Four sheets of calcium carbonate paper (Olivest Co., Ltd., product number: NCA-160) with a thickness of 0.15 mm as the thick paper 30 and an adhesive sheet with a thickness of 50 μm made of maleic anhydride-modified polyethylene are disposed between the four Using the same material as in Example 1 except that laminated and integrated by welding, the respective materials are joined under the conditions of 190 ° C., 10 kg / cm 2 and 3 minutes by a heat press machine, and a 10 cm square is obtained. Test pieces of 4 mm in thickness were obtained.

表１及び表２の結果において、実施例１と比較例２とを比較すると、第一の金属シート材１０の１０分の１以下である厚さ０．００７ｍｍのアルミニウム箔の第二の金属シート４０を用いても、厚紙３０を併用することで反りの発生を抑えたことが分かる。この厚さの第二の金属シート４０では、熱収縮による反り発生の抑制に対する寄与は小さいと思われるが、試験体の内部の熱を表面からスムーズに放出して歪みが生じにくくなっているものと考えられる。   In the results of Table 1 and Table 2, when Example 1 and Comparative Example 2 are compared, the second metal sheet of the 0.007 mm thick aluminum foil which is not more than one tenth of the first metal sheet material 10 Even when 40 is used, it is understood that the occurrence of warping is suppressed by using the thick paper 30 in combination. In the second metal sheet 40 of this thickness, although contribution to suppression of warpage generation by heat contraction seems to be small, heat in the inside of the test sample is smoothly released from the surface to make distortion difficult to occur. it is conceivable that.

また、実施例１と比較例３〜８とを比較すると、厚紙３０としては所定のテーバーこわさが必要であるものの、表３に示すような厚紙３０の厚さを増してテーバーこわさを高めた比較例４，比較例５，比較例７，比較例８でも反りが発生している。原因ははっきりしないが、厚紙３０が紙と接着シートとの積層構造となると冷熱繰り返しによって紙と接着シートとの熱膨張率の違いによって厚紙３０内に歪みが蓄積し、積層体全体の膨張，収縮に当該厚紙３０が追従できなかったためと考えられる。   Moreover, when Example 1 and Comparative Examples 3-8 are compared, although the predetermined Taber stiffness is required as thick paper 30, the comparison which increased the thickness of Taber 30 as shown in Table 3, and raised Taber stiffness. Warpage also occurs in Example 4, Comparative Example 5, Comparative Example 7, and Comparative Example 8. Although the cause is unclear, when the thick paper 30 has a laminated structure of paper and adhesive sheet, distortion accumulates in the thick paper 30 due to the difference between the thermal expansion coefficient of the paper and the adhesive sheet due to cold heat repetition, and expansion and contraction of the entire laminate It is considered that the thick paper 30 could not follow.

以上、本発明の積層体について、実施形態に基づいて説明したが、本発明は、これらの実施形態に限定されるものではない。本発明の要旨を逸脱しない範囲内で当業者が思いつく各種変形を施したものも本発明の範囲内に含まれる。   As mentioned above, although the laminated body of this invention was demonstrated based on embodiment, this invention is not limited to these embodiment. It is within the scope of the present invention to apply various modifications that those skilled in the art would think within the scope of the present invention.

本発明は、天井材、内壁材等の建物の内装材としてとして広く利用することができる。   The present invention can be widely used as interior materials of buildings such as ceiling materials and inner wall materials.

１０ 第一の金属シート材
２０ 樹脂シート材
３０ 厚紙
４０ 第二の金属シート材
Ｐ 積層体

10 First metal sheet material 20 Resin sheet material 30 Thick paper 40 Second metal sheet material P Laminated body

Claims (2)

樹脂シート材と、前記樹脂シート材の一方の面に接合されたアルミニウム又はアルミニウム合金製の第一の金属シート材と、前記樹脂シート材の他方の面に接合される厚紙と、前記厚紙の樹脂シート材と反対側に接合されて第一の金属シート材よりも薄いアルミニウム又はアルミニウム合金製の第二の金属シート材とを備え、
前記厚紙は、テーバーこわさが２０〜８０ｍＮ・ｍであって、かつ、単層であること特徴とする積層体。 A resin sheet material, a first metal sheet material made of aluminum or aluminum alloy joined to one surface of the resin sheet material, a cardboard joined to the other surface of the resin sheet material, and a resin of the cardboard A sheet material and a second metal sheet material joined to the opposite side and thinner than the first metal sheet material and made of aluminum or aluminum alloy,
The laminate is characterized in that the thick paper has a Taber stiffness of 20 to 80 mN · m and is a single layer. 前記第一の金属シート材の厚さは、０．０５〜０．３ｍｍであることを特徴とする請求項１に記載の積層体。

The thickness of the said 1st metal sheet material is 0.05-0.3 mm, The laminated body of Claim 1 characterized by the above-mentioned.

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140419U (en) * 1980-03-25 1981-10-23
JPS5789948A (en) * 1980-11-27 1982-06-04 Kohkoku Chem Ind Manufacture of light noninflammable sandwich panel
JPS5811255A (en) * 1981-07-10 1983-01-22 三井化学株式会社 Ceiling material
JPS58210233A (en) * 1982-06-01 1983-12-07 凸版印刷株式会社 Ceiling panel and production thereof
JP2000006288A (en) * 1998-06-24 2000-01-11 Toppan Printing Co Ltd Impregnated product
JP2007182667A (en) * 2005-12-30 2007-07-19 Weyerhaeuser Co Heat-insulating cardboard
JP2012133155A (en) * 2010-12-22 2012-07-12 Yupo Corp Light-reflecting body and surface light source device using the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140419U (en) * 1980-03-25 1981-10-23
JPS5789948A (en) * 1980-11-27 1982-06-04 Kohkoku Chem Ind Manufacture of light noninflammable sandwich panel
JPS5811255A (en) * 1981-07-10 1983-01-22 三井化学株式会社 Ceiling material
JPS58210233A (en) * 1982-06-01 1983-12-07 凸版印刷株式会社 Ceiling panel and production thereof
JP2000006288A (en) * 1998-06-24 2000-01-11 Toppan Printing Co Ltd Impregnated product
JP2007182667A (en) * 2005-12-30 2007-07-19 Weyerhaeuser Co Heat-insulating cardboard
JP2012133155A (en) * 2010-12-22 2012-07-12 Yupo Corp Light-reflecting body and surface light source device using the same

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