JPH1148437A - Exterior decorative material - Google Patents
Exterior decorative materialInfo
- Publication number
- JPH1148437A JPH1148437A JP9207692A JP20769297A JPH1148437A JP H1148437 A JPH1148437 A JP H1148437A JP 9207692 A JP9207692 A JP 9207692A JP 20769297 A JP20769297 A JP 20769297A JP H1148437 A JPH1148437 A JP H1148437A
- Authority
- JP
- Japan
- Prior art keywords
- solar
- infrared
- band
- resin layer
- absorption spectrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建築物、建具、乗
物等の外装材として用いられる化粧材に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material used as an exterior material for buildings, fittings, vehicles, and the like.
【０００２】[0002]
【従来の技術】従来、この種の外装材の表面（外面、太
陽光線曝露面）を黒等の暗色に着色する場合、墨（カー
ボンブラック）に代表されるような１種類で可視光線の
全帯域（帯域とは電磁波の波長範囲のことである）に高
い吸収を持つ低明度色の着色剤を添加した塗料を塗布し
たり、この着色剤を使用した化粧シートを被覆したりし
ていた。参考として、カーボンブラック粒子を分散させ
た透明樹脂層の分光透過率を図１に示す。同図において
「太陽赤外線」とは実際に地上に届く太陽光線中に含ま
れる赤外線のことで、具体的には電磁波のうち波長７８
０〜３０００ｎｍのものを言う。2. Description of the Related Art Conventionally, when the surface (outer surface, sun-exposed surface) of this type of exterior material is colored in a dark color such as black, one type represented by black (carbon black) is used for all visible light. A band (a band is a wavelength range of an electromagnetic wave) is coated with a coating material to which a low-brightness colorant having high absorption is added, or a decorative sheet using the colorant is coated. For reference, FIG. 1 shows the spectral transmittance of the transparent resin layer in which carbon black particles are dispersed. In the figure, "solar infrared light" refers to infrared light contained in sunlight that actually reaches the ground.
It refers to those having 0 to 3000 nm.
【０００３】[0003]
【発明が解決しようとする課題】上記の如き着色剤は、
図１からも分かるように、一般に吸収スペクトルの裾野
が可視光線の前後の帯域にも延び、可視光線帯域に近い
波長の太陽赤外線帯域内でも吸収が大となる。その結
果、必然的に太陽光線への曝露によって高温に加熱され
る。そのため、例えば建築物、乗物等においては日中の
室内の温度が上昇しすぎたり、外装材自体の高温化によ
って、触ると火傷を負ったり、さらには外装材自体の劣
化を早めると言った問題点が生じていた。The coloring agents as described above are:
As can be seen from FIG. 1, the tail of the absorption spectrum generally extends to the bands before and after the visible light, and the absorption becomes large even in the solar infrared band having a wavelength close to the visible light band. As a result, it is inevitably heated to high temperatures by exposure to sunlight. Therefore, for example, in buildings, vehicles, etc., the indoor temperature in the daytime rises too much, or the temperature of the exterior material itself rises, causing burns when touched, and further accelerates the deterioration of the exterior material itself. A point had arisen.
【０００４】本発明は、上記のような問題点に鑑みてな
されたものであり、その目的とするところは、暗色に着
色したものでありながら、太陽光線に曝露しても温度の
上昇が防止できる外装用化粧材を提供することにある。[0004] The present invention has been made in view of the above problems, and an object of the present invention is to prevent a rise in temperature even when exposed to sunlight while being colored dark. An object of the present invention is to provide a decorative material for exterior use.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の外装用化粧材は、太陽赤外線反射性基材の
表面に下記及びの混合物からなる太陽赤外線透過性
暗色樹脂層を積層したことを特徴とする。 各々の着色剤が可視光線帯域内の一部の波長域にのみ
吸収のピークを有し且つ太陽赤外線全帯域で透過性を有
するものであって、該各着色剤の吸収スペクトル帯域を
全部重ね合わせることによって可視光線帯域内全域を覆
うような吸収スペクトルとなる２種類以上の着色剤の組
合せ。 少なくとも太陽赤外線の全帯域を透過する太陽赤外線
透過性樹脂。Means for Solving the Problems In order to achieve the above-mentioned object, an exterior decorative material of the present invention comprises a solar-infrared reflective base material and a solar-infrared transmissive dark-colored resin layer comprising a mixture of: It is characterized by having done. Each colorant has an absorption peak only in a part of the wavelength range within the visible light band and has transparency in the entire solar infrared band, and the absorption spectrum bands of the respective colorants are all superimposed. A combination of two or more types of colorants that provides an absorption spectrum that covers the entire visible light band. A solar infrared transmitting resin that transmits at least the entire solar infrared band.
【０００６】[0006]
【発明の実施の形態】図２は本発明に係る外装用化粧材
の一例を示す断面図で、図において１は太陽赤外線反射
性基材、２はその基材１の上に積層された太陽赤外線透
過性暗色樹脂層である。また、図３は外装用化粧材の別
の例を示しており、この化粧材は太陽赤外線透過性暗色
樹脂層２の表面に保護層３を積層したタイプである。FIG. 2 is a cross-sectional view showing an example of an exterior decorative material according to the present invention. In FIG. 2, reference numeral 1 denotes a solar-infrared reflective base material; It is an infrared-permeable dark resin layer. FIG. 3 shows another example of a decorative material for exterior use. This decorative material is of a type in which a protective layer 3 is laminated on the surface of a solar-infrared transparent dark resin layer 2.
【０００７】太陽赤外線透過性暗色樹脂層は、太陽赤外
線帯域で透過性を有し且つ可視光線帯域の一部の帯域で
のみ吸収スペクトルのピークを有する着色剤を２種類以
上用意して混合（混色）し、各着色剤の吸収スペクトル
を重ね合わせることによって全可視光線帯域に吸収スペ
クトルが及ぶように混合し、しかもそれらを少なくとも
太陽赤外線の全帯域を透過する太陽光線透過性樹脂に混
合することによって、目視外観は暗色であって尚且つ太
陽赤外線に対しては透明な暗色樹脂を作製し、この暗色
樹脂を使用して形成する。例えば、図４（ａ）〜（ｃ）
はそれぞれ黄顔料、赤顔料、青顔料を分散させた透明樹
脂層の分光透過率を示す概念図であるが、これら３種の
顔料を混合したものを透明樹脂層に分散させることによ
り、図４（ｄ）に示す如く、目視外観は暗色で太陽赤外
線に対しては透明な分光透過率を有する透明樹脂層を形
成するのである。太陽赤外線透過性暗色樹脂層は、太陽
赤外線の全波長帯域において、好ましくは７０％以上の
透過率を有するように設計する。The sun-infrared transparent dark resin layer is prepared by mixing two or more types of colorants having transparency in the solar-infrared band and having an absorption spectrum peak only in a part of the visible light band. By mixing the absorption spectrum of each colorant so that the absorption spectrum extends over the entire visible light band, and mixing them with a sunlight-permeable resin that transmits at least the entire band of solar infrared rays. A dark resin having a visual appearance that is dark and transparent to solar infrared rays is prepared, and is formed using this dark resin. For example, FIGS.
FIG. 4 is a conceptual diagram showing the spectral transmittance of a transparent resin layer in which a yellow pigment, a red pigment, and a blue pigment are respectively dispersed. By dispersing a mixture of these three pigments in the transparent resin layer, FIG. As shown in (d), a transparent resin layer having a dark external appearance and a spectral transmittance transparent to solar infrared rays is formed. The solar-infrared-transmissive dark-colored resin layer is designed to have a transmittance of preferably 70% or more in the entire solar-infrared wavelength band.
【０００８】着色剤としては、図４（ａ）〜（ｃ）の概
念図或いは図５（後述）の実測データに示す如く、可視
光線帯域（波長３８０〜７８０ｎｍ）内の一部の波長域
にのみ吸収のピークを有し且つ太陽赤外線全帯域（波長
７８０〜３０００ｎｍ）で透過性を有する染料或いは顔
料を使用する。また、これらの着色剤は太陽光線に曝露
することが前提となるため、十分な（所望の）耐候性を
有するものを選ぶ必要がある。例えば、黄鉛、チタニウ
ムレッド、弁柄、朱、カドミウムレッド、群青、紺青、
コバルトブルー、イソインドリノン、キナクリドンレッ
ド、フタロシアニンブルー、インダスレンブルー等を挙
げることができる。これらの染料或いは顔料の中から、
各着色剤の吸収スペクトル帯域を全部重ね合わせること
によって可視光線帯域内全域を覆うような吸収スペクト
ルとなる２種類以上の組合せを選ぶ。混合比率は通常各
顔料を大体等分（３種類の場合、１：１：１）とするこ
とが基本であるが、所望の暗色の色相によって、或いは
着色剤の混色特性に応じて適宜増減する。混合着色剤の
添加量は、通常、樹脂中に１〜８５重量％程度であり、
具体的には太陽赤外線透過性樹脂に添加し、所定の層厚
に形成した状態で、太陽赤外線の全帯域において好まし
くは７０％以上の透過率を有し、且つ可視光線帯域内に
おいて所望の暗色となるように添加量を加減する。着色
剤自体の隠蔽性によっても添加量は依存する。As shown in the conceptual diagrams of FIGS. 4 (a) to 4 (c) or the measured data of FIG. 5 (described later), the colorant is used in a part of the wavelength range within the visible light band (wavelength 380 to 780 nm). A dye or pigment having an absorption peak only and transmitting in the entire solar infrared band (wavelength 780 to 3000 nm) is used. In addition, since these colorants are premised on exposure to sunlight, it is necessary to select a colorant having sufficient (desired) weather resistance. For example, graphite, titanium red, red stalk, vermilion, cadmium red, ultramarine, navy blue,
Cobalt blue, isoindolinone, quinacridone red, phthalocyanine blue, induslen blue and the like can be mentioned. From among these dyes or pigments,
Two or more kinds of combinations are selected so as to cover the entire visible light band by superimposing the absorption spectrum bands of the respective colorants. The mixing ratio is generally based on the fact that each pigment is roughly equally divided (in the case of three types, 1: 1: 1), but is appropriately increased or decreased depending on the desired dark hue or the color mixing characteristics of the colorant. . The amount of the mixed colorant is usually about 1 to 85% by weight in the resin,
Specifically, when added to the solar infrared transmitting resin and formed to a predetermined layer thickness, it has a transmittance of preferably 70% or more in the entire solar infrared band and a desired dark color in the visible light band. The amount of addition is adjusted so that The amount added also depends on the hiding power of the colorant itself.
【０００９】暗色とは、黒色の他、褐色、紺色、深緑
色、臙脂色等の低明度の有彩色、又は無彩色のことであ
り、可視光線である３８０〜７８０μｍの範囲の全帯域
にわたって吸収スペクトルを有する色をいう。ここで低
明度とは、大体、マンセル表色系で明度４．０以下のも
のをいう。この暗色を出すためには、単一の暗色着色剤
ではなく、複数の互いに吸収スペクトルのピークがずれ
ている着色剤を混合して各々の着色剤の吸収スペクトル
を合成（混色）することによって可視光線帯域の全域に
亘る吸収スペクトルを実現する。しかも各々の着色剤は
太陽赤外線帯域において吸収スペクトルを持たないもの
を用いるため、混合してもなお太陽赤外線は吸収しな
い。組み合わせる着色剤は最低２種類以上であり、２種
類の場合は所謂「補色」関係にある色相の着色剤を組み
合わせることになる。例えば「緑と赤」等である。ま
た、３種類以上の場合は所謂「３原色」の関係にある色
相のものを選ぶ。例えば「黄、赤、青」の３種類である
が、要は３種類の吸収スペクトルを合成した時に可視光
線の全帯域を覆えばよいのであって、通常印刷分野で言
われるプロセスカラーの３原色を必ずしも選ぶ必要はな
い。４種類以上の着色剤を組み合わせることも勿論可能
である。その際、混合着色剤の合成吸収スペクトルが可
視光線内で一部ピークを有するようにすれば紺色等の暗
色の有彩色を作ることができる。The term "dark color" refers to a chromatic color having a low brightness such as brown, dark blue, dark green, or reddish color or achromatic color, in addition to black, and is absorbed over the entire visible light range of 380 to 780 μm. A color having a spectrum. Here, the low lightness generally refers to a Munsell color system having a lightness of 4.0 or less. In order to produce this dark color, instead of a single dark colorant, a plurality of colorants whose absorption spectrum peaks are shifted from each other are mixed and the absorption spectrum of each colorant is synthesized (color mixture) to form a visible color. An absorption spectrum over the entire light band is realized. Moreover, since each colorant has no absorption spectrum in the solar infrared band, it does not absorb the solar infrared light even when mixed. There are at least two or more colorants to be combined, and in the case of two types, colorants having hues in a so-called “complementary color” relationship are combined. For example, "green and red". In the case of three or more types, a hue having a so-called “three primary colors” is selected. For example, there are three types of "yellow, red, and blue". The point is that when the three types of absorption spectra are combined, it is only necessary to cover the entire band of visible light, and the three primary colors of process colors usually called in the printing field. You don't have to choose. Of course, it is also possible to combine four or more types of coloring agents. At this time, if the combined absorption spectrum of the mixed colorant has a partial peak in visible light, a dark chromatic color such as dark blue can be produced.
【００１０】太陽赤外線反射性基材への太陽赤外線透過
性暗色樹脂層の積層は、全面被覆でも或いは模様状等の
部分被覆でもよい。太陽赤外線透過性暗色樹脂層の積層
方法としては、全面被覆の場合は例えばスプレーコー
ト、カーテンフローコート、ロールコート、コンマコー
ト、ハケ塗り等公知の各種塗装法による塗装、或いは予
め製膜したシート（乃至はフィルム）を熱熔着、接着剤
によるドライラミネート等公知の接着法による貼り合わ
せによる。太陽赤外線透過性暗色樹脂層の厚さは、通常
１〜２００μｍ程度で、特に耐候性を要求する場合は５
０μｍ以上とすることが好ましい。The solar-infrared-transmissive dark-colored resin layer may be laminated on the solar-infrared-reflective base material over the entire surface or over a portion such as a pattern. As a method for laminating the solar-infrared-transmissive dark-colored resin layer, in the case of full-surface coating, for example, coating by various known coating methods such as spray coating, curtain flow coating, roll coating, comma coating, brush coating, or a previously formed sheet ( Or a film) by a known bonding method such as heat welding or dry lamination with an adhesive. The thickness of the solar-infrared-transparent dark-colored resin layer is usually about 1 to 200 μm.
It is preferable that the thickness be 0 μm or more.
【００１１】太陽赤外線透過性樹脂としては、太陽赤外
線の帯域内に吸収スペクトルをもたず、これを透過する
ものであって、且つ太陽光線の曝露が前提となるため、
十分な（所望の）耐候性を有するものを選ぶ。樹脂自体
で耐候性が不十分な場合は、紫外線帯域に吸収スペクト
ルを有し且つ少なくとも太陽赤外線帯域の全域に亘って
透明性を有する紫外線吸収剤を添加することにより所望
の耐候性を得ることもできる。なお、太陽赤外線透過性
樹脂としては、最低限太陽赤外線帯域で透過性を有する
ものであれば足り、可視光線帯域においては吸収（着
色）を有したものであっても暗色の色再現に支障がなけ
れば問題ない。[0011] The solar infrared ray transmitting resin does not have an absorption spectrum in the band of the solar infrared ray and transmits the same, and is premised on exposure to sunlight.
Choose one with sufficient (desired) weather resistance. If the resin itself has insufficient weather resistance, the desired weather resistance may be obtained by adding an ultraviolet absorber having an absorption spectrum in the ultraviolet band and having transparency at least over the entire range of the solar infrared band. it can. In addition, as the solar infrared ray transmitting resin, it is sufficient that the resin has transparency at least in the solar infrared band, and even if it has absorption (coloring) in the visible light band, it does not hinder the reproduction of dark colors. If not, there is no problem.
【００１２】太陽赤外線透過性樹脂の例としては、ポリ
メチル（メタ）アクリレート、ポリエチル（メタ）アク
リレート、ポリブチル（メタ）アクリレート、メチル
（メタ）アクリレート・ブチル（メタ）アクリレート共
重合体、メチル（メタ）アクリレート・エチル（メタ）
アクリレート共重合体等の（メタ）アクリル酸アルキル
エステルの単独又は共重合体等のアクリル樹脂（但し、
（メタ）アクリレートとはアクリレート或いはメタアク
リレートという意味）、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、エチレン・テレフタレー
ト・イソフタレート共重合体等の熱可塑性ポリエステ
ル、ポリエチレン、ポリプロピレン、オレフィン系熱可
塑性エラストマー等のポリオレフィン、ポリ弗化ビニ
ル、ポリ弗化ビニリデン、ポリ４弗化エチレン、エチレ
ン・４弗化エチレン共重合体等の弗素樹脂、ポリ塩化ビ
ニル、塩化ビニル酢酸ビニル共重合体、ポリカーボネー
ト等がある。これらは単体でも或いは２種以上混合して
用いることもできる。Examples of the solar infrared transmitting resin include polymethyl (meth) acrylate, polyethyl (meth) acrylate, polybutyl (meth) acrylate, methyl (meth) acrylate / butyl (meth) acrylate copolymer, and methyl (meth) acrylate. Acrylate / ethyl (meth)
Acrylic resin such as homo- or copolymer of alkyl (meth) acrylate such as acrylate copolymer (however,
(Meth) acrylate means acrylate or methacrylate), polyethylene terephthalate,
Thermoplastic polyesters such as polybutylene terephthalate, ethylene terephthalate / isophthalate copolymer, polyolefins such as polyethylene, polypropylene and olefinic thermoplastic elastomers, polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene, ethylene Examples include fluorine resin such as tetrafluoroethylene copolymer, polyvinyl chloride, vinyl chloride vinyl acetate copolymer, and polycarbonate. These can be used alone or in combination of two or more.
【００１３】太陽赤外線反射性基材としては、太陽光線
曝露時の温度上昇の原因となる太陽赤外線の帯域におい
て高い反射率を有するものを用いる。鉄、ステンレス
鋼、チタニウム等も用いられるが、反射率としては好ま
しくは太陽赤外線の全帯域で６０％以上あるものを選
ぶ。具体的には、アルミニウム、金、銀、銅、黄銅等の
金属、或いは任意の材料の基材の表面のみにこれらの金
属、二酸化チタン、硫酸バリウム、亜鉛華等の太陽赤外
線反射性物質の層を形成したものでもよい。層の形成法
としてはこれらの材料の箔片或いは粉末を分散せしめた
塗料を塗布するか、特に金属の場合は箔の貼り合わせ、
真空蒸着、スパッタリング、電解又は無電解メッキ等の
薄膜形成法による。任意の基材としては、前記以外の金
属、木材、陶磁器、硝子、樹脂、或いはこれらの積層体
等が挙げられる。太陽赤外線反射性基材の形状として
は、平板、彎曲板等の板、四角柱、円柱等の柱状体、シ
ート、各種立体形状等任意であり、用途に応じて設計す
る。As the solar-infrared reflective substrate, a substrate having a high reflectance in a solar-infrared band that causes a rise in temperature upon exposure to sunlight is used. Iron, stainless steel, titanium or the like may be used, but the reflectance is preferably selected to be 60% or more in the entire solar infrared band. Specifically, metals such as aluminum, gold, silver, copper, and brass, or a layer of a solar infrared-reflective material such as titanium dioxide, barium sulfate, and zinc white on only the surface of a base material of any material May be formed. As a method of forming a layer, a paint in which a foil piece or a powder of these materials is dispersed is applied, or in the case of a metal in particular, a foil is bonded,
By a thin film forming method such as vacuum deposition, sputtering, electrolytic or electroless plating. Examples of the optional substrate include metals, woods, ceramics, glass, resins, and laminates thereof other than those described above. The shape of the solar-infrared reflective base material is arbitrary such as a plate such as a flat plate and a curved plate, a columnar body such as a square pole and a cylinder, a sheet, and various three-dimensional shapes.
【００１４】保護層は、太陽赤外線透過性暗色樹脂層の
耐候性、耐摩耗性等の耐久性をさらに強化する必要があ
る場合に設ける。この保護層としては、太陽赤外線の透
過性及び暗色の再現の双方を損なわないようにするた
め、好ましくは太陽赤外線及び可視光線の両方の帯域で
透過性を有する樹脂を選ぶ。樹脂としては例えば前記ア
クリル樹脂、ポリカーボネート樹脂、弗素樹脂等が好ま
しい。なお、暗色の再現に影響がない場合には、可視光
線帯域に吸収（着色）を有するものを用いることも可能
である。ただし、この場合でも太陽赤外線帯域では透明
なものを選ぶ。The protective layer is provided when it is necessary to further enhance the durability such as the weather resistance and the abrasion resistance of the solar-infrared transparent dark resin layer. As the protective layer, in order not to impair both the transmittance of solar infrared rays and the reproduction of dark colors, a resin having transparency in both the bands of solar infrared rays and visible light is preferably selected. As the resin, for example, the above-mentioned acrylic resin, polycarbonate resin, fluorine resin and the like are preferable. In the case where there is no influence on the reproduction of dark colors, a material having absorption (coloring) in the visible light band can be used. However, even in this case, select a transparent material in the solar infrared band.
【００１５】外装用化粧材の耐候性をさらに向上させる
必要がある場合には、保護層、太陽赤外線透過性暗色樹
脂層のいずれか一方或いは両方に紫外線吸収剤を添加す
る。このような紫外線吸収剤としては、紫外線は吸収す
るが太陽赤外線の透過性及び暗色の再現の双方を損なわ
ないようにするため、少なくとも太陽赤外線帯域で透明
性を有する樹脂、より好ましくは太陽赤外線及び可視光
線の両方の帯域で透過性を有する樹脂を選ぶ。具体的に
は、ベンゾトリアゾール系、ベンゾフェノン系、ベンゾ
エート系、シアノアクリレート系等の紫外線吸収剤を用
いる。紫外線吸収剤に加えて、ヒンダードアミン系ラジ
カル捕捉剤等の光安定剤を添加することもできる。紫外
線吸収剤、光安定剤とも添加量は樹脂１００重量部に対
して０．１〜１０重量部程度である。If it is necessary to further improve the weather resistance of the exterior decorative material, an ultraviolet absorber is added to one or both of the protective layer and the solar-infrared-transparent dark resin layer. As such an ultraviolet absorber, a resin having transparency in at least a solar infrared band, more preferably a solar infrared ray and a resin that absorbs ultraviolet rays but does not impair both the transmission of solar infrared rays and the reproduction of dark color, so as not to impair both. Choose a resin that is transparent in both bands of visible light. Specifically, a benzotriazole-based, benzophenone-based, benzoate-based, or cyanoacrylate-based ultraviolet absorber is used. In addition to the ultraviolet absorber, a light stabilizer such as a hindered amine radical scavenger may be added. The addition amount of both the ultraviolet absorber and the light stabilizer is about 0.1 to 10 parts by weight based on 100 parts by weight of the resin.
【００１６】さらに装飾・意匠を付与するため、必要に
応じて化粧材の適当な位置に装飾層を設けたり、或いは
化粧材表面に凹凸模様を設ける。装飾層は保護層の表面
或いは裏面、太陽赤外線透過性暗色樹脂層の表面或いは
裏面、太陽赤外線反射性基材の表面のいずれか１箇所以
上に形成することができる。装飾層としては印刷模様
層、或いは金属薄膜層が挙げられる。装飾層は太陽赤外
線透過性暗色樹脂層の有する太陽赤外線透過性と暗色、
及び太陽赤外線反射性基材の太陽赤外線反射性を損なわ
ないために少なくとも太陽赤外線透過性暗色樹脂層と全
部重ならないようにし、且つ太陽赤外線を吸収しない材
料を用いて形成する。これらは公知の材料の中からこの
ような基準で選択すればよい。また凹凸模様は公知のエ
ンボス法を用いて梨地、ヘアライン、木目導管溝等の凹
凸形状を賦形する。Further, in order to provide a decoration / design, a decorative layer is provided at an appropriate position of the decorative material as necessary, or an uneven pattern is provided on the surface of the decorative material. The decorative layer can be formed on any one or more of the surface or the back of the protective layer, the surface or the back of the solar-infrared transparent resin layer, and the surface of the solar-infrared reflective base material. Examples of the decorative layer include a printed pattern layer and a metal thin film layer. The decoration layer has solar infrared transmittance and dark color, which the sun infrared transparent resin layer has
In order not to impair the solar-infrared reflectivity of the solar-infrared-reflective base material, at least the solar-infrared-transparent dark resin layer does not completely overlap and is formed using a material that does not absorb solar infrared. These may be selected from known materials based on such criteria. In addition, the concavo-convex pattern forms a concavo-convex shape such as a satin finish, a hairline, and a wood grain conduit groove using a known embossing method.
【００１７】また、太陽赤外線反射性基材、太陽赤外線
透過性暗色樹脂層及び保護層の層間を接着剤を用いて接
着する場合には、接着剤についても太陽赤外線帯域で透
過性を有する樹脂を用いる。例えば、前記の太陽赤外線
透過性樹脂として例示した樹脂を用いることができる。In the case where an adhesive is used to bond between the solar-infrared reflective base material, the solar-infrared transparent dark-colored resin layer, and the protective layer using an adhesive, a resin having transparency in the solar-infrared band is also used for the adhesive. Used. For example, the resins exemplified as the solar infrared transmitting resin can be used.
【００１８】本発明の外装用化粧材の用途は、屋根、外
壁面等の建築物の表面材、扉、窓、戸袋等の建具、自動
車、電車、船舶、航空機等の乗物の外装材、電話ボック
スの外装材等である。The decorative material for exterior use of the present invention is used for surface materials of buildings such as roofs and outer walls, fittings such as doors, windows, door pockets, exterior materials of vehicles such as automobiles, trains, ships, and aircrafts, and telephones. It is an exterior material of a box.
【００１９】[0019]
（実施例）下記Ａ、Ｂ、Ｃのインキの各々単体、及び
Ａ、Ｂ、Ｃの各インキを３：３：１の配合比で混合して
黒色に調色した混色インキの計４種類のインキを準備
し、透明２軸延伸ＰＥＴフィルム（５０μｍ厚）の上に
それぞれのインキをロールコート法により５μｍ厚（乾
燥時）に塗工した。これらのうち、混合インキを使用し
て形成した層が太陽赤外線透過性暗色樹脂層であり、本
実施例では耐候性付与のため、この太陽赤外線透過性暗
色樹脂層の上にアクリル樹脂系コート剤をロールコート
法により１０μｍ厚（乾燥時）に塗工し保護層とした。(Examples) A total of four kinds of inks of the following A, B, and C alone, and each of the inks of A, B, and C were mixed at a mixing ratio of 3: 3: 1 and toned to black. Inks were prepared, and the respective inks were applied on a transparent biaxially stretched PET film (50 μm thickness) to a thickness of 5 μm (when dried) by a roll coating method. Of these, the layer formed by using the mixed ink is a solar-infrared-transparent dark-colored resin layer, and in this embodiment, an acrylic resin-based coating agent is provided on the solar-infrared-transmissive dark-colored resin layer in order to impart weather resistance. Was applied to a thickness of 10 μm (when dried) by a roll coating method to form a protective layer.
【００２０】Ａ：昭和インク工業所製「化Ｘ系樹脂」
（アクリル系樹脂と塩化ビニル酢酸ビニル共重合体との
混合系樹脂）を太陽赤外線透過性樹脂（バインダー）と
し、これに着色剤としてキナクリドンを５２重量％含有
させてなる赤色系インキ。 Ｂ：上記と同じ昭和インク工業所製「化Ｘ系樹脂」に着
色剤としてイソインドリノンを３８重量％含有させてな
る黄色系インキ。 Ｃ：上記と同じ昭和インク工業所製「化Ｘ系樹脂」に着
色剤としてフタロシアニンブルーを８２重量％含有させ
てなる青色系インキ。A: "Chemical X resin" manufactured by Showa Ink Industry Co., Ltd.
(A mixed resin of an acrylic resin and a vinyl chloride-vinyl acetate copolymer) is a red ink containing a solar infrared transmitting resin (binder) and containing 52% by weight of quinacridone as a coloring agent. B: A yellow-based ink obtained by adding 38% by weight of isoindolinone as a colorant to the same “chemical X-based resin” manufactured by Showa Ink Industries, Ltd. as described above. C: A blue-based ink obtained by adding 82% by weight of phthalocyanine blue as a colorant to the same “chemical X-based resin” manufactured by Showa Ink Industries, Ltd. as described above.
【００２１】（比較例）実施例で用いた混合インキの代
わりに、黒色系顔料のみを配合した黒色系インキ（上記
と同じ昭和インク工業所製「化Ｘ系樹脂」に着色剤とし
てカーボンブラックを８２重量％含有させてなる黒色系
インキ）を準備し、実施例と同じ透明２軸延伸ＰＥＴフ
ィルム（５０μｍ厚）の上にロールコート法により５μ
ｍ厚（乾燥時）に塗工した。(Comparative Example) Instead of the mixed ink used in the examples, a black ink containing only a black pigment (carbon black as a colorant in the above-mentioned "Chemical X resin" manufactured by Showa Ink Industries, Ltd.) 82% by weight) was prepared, and 5 μm of the same transparent biaxially stretched PET film (50 μm thick) as in the example was roll-coated.
m (at the time of drying).
【００２２】（結果）ＰＥＴフィルムにＡ、Ｂ、Ｃのイ
ンキをそれぞれ塗工してなる各シートの分光透過率は図
５に示すようであり、ＰＥＴフィルムに混合インキを塗
工し、さらにコート剤による保護層を形成した上記実施
例のシートの分光透過率は図６に示すようである。ま
た、ＰＥＴフィルムに黒色系インキを塗工した上記比較
例のシートの分光透過率は図１に示したのと同様であ
る。(Results) The spectral transmittance of each sheet obtained by coating the A, B, and C inks on the PET film is as shown in FIG. 5. The mixed ink was coated on the PET film, and further coated. FIG. 6 shows the spectral transmittance of the sheet of the above embodiment having the protective layer formed of the agent. Further, the spectral transmittance of the sheet of the comparative example in which the black ink was applied to the PET film was the same as that shown in FIG.
【００２３】実施例のシートは、図６に示すように、太
陽光のうち可視光は透過せず暗色となる一方、赤外光に
は高い透過率を示している。そして、該シートの裏面に
アクリル系接着剤を介して赤外線反射性基材である厚さ
２ｍｍのアルミニウム板を積層したところ、このアルミ
ニウム積層体は、図７に示すように、可視光域では暗色
に見えるが、赤外域においては高い反射率を示した。As shown in FIG. 6, the sheet of the embodiment has a dark color without transmitting visible light out of sunlight, and has a high transmittance to infrared light. Then, when an aluminum plate having a thickness of 2 mm, which is an infrared-reflective substrate, was laminated on the back surface of the sheet via an acrylic adhesive, the aluminum laminate was dark in the visible light region as shown in FIG. , But showed high reflectance in the infrared region.
【００２４】比較例のシートは、太陽光全般にわたって
殆ど光を透過しないため、同様に裏面にアルミニウム板
を積層してなる積層体を作製したところ、赤外域の反射
率は実施例に比べて大幅に低下している。この反射され
なかった赤外線は黒色インキ層で吸収されて熱に変換さ
れるので温度上昇を招く。Since the sheet of the comparative example hardly transmits light throughout sunlight, a laminate was similarly prepared by laminating an aluminum plate on the back surface. The reflectance in the infrared region was significantly higher than that of the example. Has declined. The non-reflected infrared rays are absorbed by the black ink layer and converted into heat, which causes a rise in temperature.
【００２５】実施例のアルミニウム積層体、比較例のア
ルミニウム積層体及びアルミニウム板のみの３枚を埼玉
県入間郡三芳町において６月上旬の晴天日に午前１１：
００〜１５：００の４時間のあいだ屋外で曝露し、その
時の温度上昇を表面温度計により測定した。その結果を
表１に示す。この表１から分かるように、実施例の積層
体は比較例の積層体に比べて優れた温度上昇防止効果を
示した。The aluminum laminate of the example, the aluminum laminate of the comparative example, and the aluminum plate alone were placed in Miyoshi-cho, Iruma-gun, Saitama, Japan on a sunny day in early June at 11 am
It exposed outdoors for 4 hours from 00 to 15:00, and the temperature rise at that time was measured by the surface thermometer. Table 1 shows the results. As can be seen from Table 1, the laminate of the example exhibited an excellent temperature rise prevention effect as compared with the laminate of the comparative example.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【発明の効果】以上説明したように、本発明の外装用化
粧材は、目視では暗色に見えるものでありながら、太陽
光線に曝露しても太陽光線中の赤外線は吸収されること
なく反射されるため、輻射熱により温度が上昇するのを
防止できる。As described above, the exterior decorative material of the present invention, while being visible in a dark color, reflects infrared rays in the sunlight without being absorbed when exposed to the sunlight. Therefore, it is possible to prevent the temperature from rising due to radiant heat.
【図１】カーボンブラック粒子を分散させた透明樹脂層
の分光透過率の概念図を示すグラフである。FIG. 1 is a graph showing a conceptual diagram of a spectral transmittance of a transparent resin layer in which carbon black particles are dispersed.
【図２】本発明に係る外装用化粧材の一例を示す断面図
である。FIG. 2 is a cross-sectional view showing an example of an exterior decorative material according to the present invention.
【図３】本発明に係る外装用化粧材の別の例を示す断面
図である。FIG. 3 is a cross-sectional view showing another example of the exterior decorative material according to the present invention.
【図４】目視外観は暗色であって尚且つ太陽赤外線に対
しては透明な暗色樹脂を作製する際の原理を説明するた
めのグラフである。FIG. 4 is a graph for explaining the principle of producing a dark resin whose visual appearance is dark and transparent to solar infrared rays.
【図５】実施例で使用する３種類のインキを塗工したそ
れぞれのシートの分光透過率を示すグラフである。FIG. 5 is a graph showing the spectral transmittance of each sheet coated with three types of inks used in Examples.
【図６】混合インキを塗工した実施例のシートの分光透
過率を示すグラフである。FIG. 6 is a graph showing a spectral transmittance of a sheet of an example coated with a mixed ink.
【図７】実施例のシートの裏面にアルミニウム板を貼り
合わせてなる積層体の分光反射率をアルミニウム板のそ
れと共に示すグラフである。FIG. 7 is a graph showing the spectral reflectance of a laminate obtained by laminating an aluminum plate on the back surface of the sheet of the example together with that of the aluminum plate.
１ 太陽赤外線反射性基材 ２ 太陽赤外線透過性暗色樹脂層 ３ 保護層 DESCRIPTION OF SYMBOLS 1 Sun-infrared reflective base material 2 Sun-infrared transparent dark resin layer 3 Protective layer
Claims (4)
びの混合物からなる太陽赤外線透過性暗色樹脂層を積
層したことを特徴とする外装用化粧材。 各々の着色剤が可視光線帯域内の一部の波長域にのみ
吸収のピークを有し且つ太陽赤外線全帯域で透過性を有
するものであって、該各着色剤の吸収スペクトル帯域を
全部重ね合わせることによって可視光線帯域内全域を覆
うような吸収スペクトルとなる２種類以上の着色剤の組
合せ。 少なくとも太陽赤外線の全帯域を透過する太陽赤外線
透過性樹脂。1. A cosmetic material for exterior use, comprising a solar-infrared reflective base material and a solar-infrared-transparent dark resin layer comprising a mixture of the following and laminated on the surface of the solar-infrared reflective base material. Each colorant has an absorption peak only in a part of the wavelength range within the visible light band and has transparency in the entire solar infrared band, and the absorption spectrum bands of the respective colorants are all superimposed. A combination of two or more types of colorants that provides an absorption spectrum that covers the entire visible light band. A solar infrared transmitting resin that transmits at least the entire solar infrared band.
可視光線帯域から太陽赤外線帯域までの全域に亘って透
明性を有する保護層を積層してなる請求項１に記載の外
装用化粧材。2. The method according to claim 1, wherein the surface of the solar-infrared transparent dark resin layer is
The exterior decorative material according to claim 1, wherein a protective layer having transparency is laminated over an entire region from a visible light band to a solar infrared band.
ルを有し且つ可視光線帯域から太陽赤外線帯域までの全
域に亘って透明性を有する紫外線吸収剤を添加してなる
請求項２に記載の外装用化粧材。3. The protective layer according to claim 2, wherein an ultraviolet absorbent having an absorption spectrum in the ultraviolet band and having transparency over the entire range from the visible light band to the solar infrared band is added to the protective layer. Exterior cosmetics.
線帯域に吸収スペクトルを有し且つ少なくとも太陽赤外
線帯域の全域に亘って透明性を有する紫外線吸収剤を添
加してなる請求項１又は２に記載の外装用化粧材。4. The method according to claim 1, wherein an ultraviolet absorbent having an absorption spectrum in the ultraviolet band and having transparency over at least the entire region of the solar infrared band is added to the solar-infrared transparent dark resin layer. The decorative material for exterior according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9207692A JPH1148437A (en) | 1997-08-01 | 1997-08-01 | Exterior decorative material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9207692A JPH1148437A (en) | 1997-08-01 | 1997-08-01 | Exterior decorative material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1148437A true JPH1148437A (en) | 1999-02-23 |
Family
ID=16544002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9207692A Pending JPH1148437A (en) | 1997-08-01 | 1997-08-01 | Exterior decorative material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1148437A (en) |
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| WO2002014445A1 (en) * | 2000-08-15 | 2002-02-21 | Origin Electric Company, Limited | Composition for forming infrared transmitting layer, infrared reflector, and processed article |
| JP2004505808A (en) * | 2000-08-07 | 2004-02-26 | フーゴ、ゲルド | Low sunlight absorbing flat member with dark surface |
| WO2004094539A1 (en) * | 2003-03-27 | 2004-11-04 | Basf Corporation | A layered system and method for reducing a temperature realized by a substrate and by an interior space |
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| JP2004505808A (en) * | 2000-08-07 | 2004-02-26 | フーゴ、ゲルド | Low sunlight absorbing flat member with dark surface |
| WO2002014445A1 (en) * | 2000-08-15 | 2002-02-21 | Origin Electric Company, Limited | Composition for forming infrared transmitting layer, infrared reflector, and processed article |
| WO2004094539A1 (en) * | 2003-03-27 | 2004-11-04 | Basf Corporation | A layered system and method for reducing a temperature realized by a substrate and by an interior space |
| JP2006233014A (en) * | 2005-02-24 | 2006-09-07 | Techno Polymer Co Ltd | Ir-transmissible thermoplastic resin composition and molded product using the same |
| JP4679929B2 (en) * | 2005-02-24 | 2011-05-11 | テクノポリマー株式会社 | Infrared transparent thermoplastic resin composition and molded article using the same |
| WO2007145083A1 (en) * | 2006-06-16 | 2007-12-21 | Achilles Corporation | Dark color sheet-shaped material having light reflective properties in near infrared range |
| US8202616B2 (en) | 2006-06-16 | 2012-06-19 | Achilles Corporation | Dark color sheet-like body having light reflection properties in near-infrared region |
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| JP2014130338A (en) * | 2012-11-29 | 2014-07-10 | Fujifilm Corp | Composition, infrared transmitting filter, manufacturing method therefor, and infrared sensor |
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