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JP4070046B2 - Metal decorative board - Google Patents
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JP4070046B2 - Metal decorative board - Google Patents

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Publication number
JP4070046B2
JP4070046B2 JP9386398A JP9386398A JP4070046B2 JP 4070046 B2 JP4070046 B2 JP 4070046B2 JP 9386398 A JP9386398 A JP 9386398A JP 9386398 A JP9386398 A JP 9386398A JP 4070046 B2 JP4070046 B2 JP 4070046B2
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JP
Japan
Prior art keywords
resin
metal decorative
vinyl chloride
metal
decorative board
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.)
Expired - Fee Related
Application number
JP9386398A
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Japanese (ja)
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JPH11268179A (en
Inventor
光豊 宮越
玲子 菅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP9386398A priority Critical patent/JP4070046B2/en
Publication of JPH11268179A publication Critical patent/JPH11268179A/en
Application granted granted Critical
Publication of JP4070046B2 publication Critical patent/JP4070046B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、金属基材の表面に装飾を施した金属化粧板に関するものである。
【0002】
【従来の技術】
従来、この種の金属化粧板としては、印刷された着色塩ビフィルムにクリアーフィルムをダブリングエンボスしてなる化粧シートを貼り付けたものや、単色の塗料で塗装するか或いはオフセットグラビアで印刷したものが知られている。
【0003】
【発明が解決しようとする課題】
従来の技術で述べたもののうち前者の金属化粧板は、曲げ加工時にクラックが発生したり耐候性に劣ると言った問題点があり、また後者の金属化粧板は、意匠性に劣るという問題点がある。
【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、意匠性が高く耐候性が良好な金属化粧板を提供することにある。
【0005】
【課題を解決するための手段】
上記の問題を解決するために、本発明は、金属基材の上に着色塩ビフィルム、絵柄印刷層、透明もしくは半透明の表面保護層が順次設けられている金属化粧板であって、前記絵柄印刷層がアクリル系樹脂をバインダーとするインキで形成され、前記表面保護層が塩酢ビ樹脂とシリコンアクリル樹脂からなることを特徴としている。
【0006】
【発明の実施の形態】
図1は本発明に係る金属化粧板の一例を示す断面図であり、同図に示される金属化粧板は、金属基材1の上に接着剤層2を設け、着色された塩ビフィルム3に絵柄印刷層4を形成しさらに表面保護層5を形成しておいたものをその上からラミネートして構成されている。
【0007】
【発明の実施の形態】
金属基材としては、鉄板、亜鉛メッキ鋼板、銅板、アルミニウム板等の金属板が使用される。
【0008】
塩ビフィルムは建材用として公知のものを使用する。特に外装用途としては、顔料濃度が重量比で10部以上、紫外線隠蔽率が300nm〜400nmの領域全てで95%以上カットしていること、さらに厚みが200μm以上であることが望ましい。これらの値にないと耐候性の面で変退色、基材からの剥がれが早く訪れる。
【0009】
絵柄印刷層は、グラビア印刷、オフセット印刷、シルクスクリーン印刷、転写シートからの転写印刷等の公知の印刷法によりインキにて形成する。模様には、木目模様、石目模様、布目模様、皮紋模様、幾何学図形、文字、記号或いは全面ベタ等がある。使用するインキは金属基材との密着性及び耐候性を考慮し、バインダーにアクリル系樹脂を使用し、これに顔料を添加したものを用いる。アクリル樹脂と塩酢ビ樹脂を8:2で配合したものが良好である。この比率が1:1に近づくと耐候性が劣り、10:0に近づくとラミネート後の曲げ加工でクラックを生じる。
【0010】
顔料としては耐候性のあるものが使用され、黄色顔料としてイソインドリノン、スレンイエローG、パーマネントイエローHR等の有機顔料、および黄色酸化鉄、ニッケルチタンイエロー等の無機顔料、赤色顔料としてキナクリドンレッド、パーマネントレッドFGR、パーマネントレッドF4RH等の有機顔料、および弁柄、硫化水銀カドミウム等の無機顔料、青色顔料としてフタロシアニンブルー、スレンブルーRS等の有機顔料、および群青、紺青等の無機顔料、黒色顔料としてカーボンブラック、白色顔料として二酸化チタン、三酸化二アンチモン等が挙げられる。これらの中でも、酸化鉄(黄色、茶色)、フタロシアニンブルー(青)、カーボンブラック(黒)、二酸化チタン(白)が望ましい。
【0011】
ラミネートに用いる接着剤としては、フェノール系樹脂、フラン系樹脂、尿素系樹脂、メラミン系樹脂、ポリエステル系樹脂、ポリウレタン系樹脂、エポキシ系樹脂、若しくはその他の熱硬化性樹脂に、必要に応じて、イソシアネート、アミン等の架橋剤、メチルエチルケトンパーオキサイド、ハイドロパーオキサイド、アゾビスイソブチロニトリル等の重合開始剤、ナフテン酸コバルト、ジメチルアニリン等の重合促進剤等を添加したもの、ポリ酢酸ビニル、ポリ塩化ビニル、ポリ酢酸ビニル/塩化ビニル共重合体、エチレン/ビニルアルコール共重合体、エチレン/酢酸ビニル共重合体、ポリビニルアルコール、ポリビニルブチラール等のビニル重合体、ポリエチレン、ポリプロピレン等のポリオレフィン樹脂、ポリアクリル酸エステル系樹脂、ポリ(メタ)アクリル酸エステル系樹脂、硝酸繊維素、酢酸繊維素、ポリアミド、アイオノマー若しくはその他の熱可塑性樹脂、ブタジエン−アクリロニトリルゴム、ネオプレンゴム、天然ゴム、若しくはその他のゴム、又は、膠、カゼイン、デキストリン、澱粉、アラビアゴム、ロジン等の天然樹脂、等の1種又は2種以上の混合体を主成分とし、必要に応じ、これに公知の充填剤、顔料、染料、安定剤、溶剤、可塑剤等を添加したものを接着剤として使用することができる。これらのうち、金属基材と塩ビフィルムとの密着性及びその他の適性を考慮したものを用いるようにする。
【0012】
これらの接着剤の硬化方式としては、溶剤乾燥型、エマルジョン型、熱熔融固化型、熱硬化型等適宜の方式を選定でき、接着剤の形態としては、液体、粉体、固体フィルム等適宜な形態を採ることができる。
【0013】
接着面への接着剤の適用方式としては、液体接着剤の場合、塗工方式を適用するが、熱熔融固化型の場合は、エクストルージョンコート等により接着面に塗工して相手基材を積層加圧したり、一度接着面に塗工乾燥後、相手基材を積層して加熱、加圧する方法、フィルム型の場合、接着すべき基材間に接着剤フィルムを積層して加圧又は加熱加圧する方法等がある。必要に応じ、接着面にコロナ放電処理、プラズマ処理、プライマーコート、脱脂処理、表面粗面化処理等公知の易接着処理を施してもよい。
【0014】
表面保護層は下地のインキ層を保護するための層であり、耐候性、耐汚染性、曲げ加工性のある半透明もしくは透明の樹脂層で形成する。本発明ではシリコンアクリル系樹脂からなり分子量が20万〜30万のものを使用する。また、塩酢ビ樹脂とシリコンアクリル樹脂からなり、その重量比が10:90〜40:60のものを使用するのが好ましい。さらには、重合度が700〜2000、Tgが70〜100℃のものを使用するのが好ましい。塩酢ビの重量比が大きすぎると耐汚染性、耐候性が劣り、逆にシリコンアクリル樹脂の重量比が大きすぎると耐溶剤性が劣ってくる。また、艶消し用にはフッ素系ワックス或いは疎水性シリカを必要に応じて重量比で0.5〜30部添加したものを用いればよい。
【0015】
【実施例】
以下、本発明の実施例を比較例とともに詳細に説明する。
【0016】
(実施例)着色塩化ビニルフィルムにアクリル系樹脂をバインダーとしたインキで石目柄を印刷し、その上にシリコンアクリル系樹脂で透明保護層を設けた。シリコンアクリル系樹脂としては、塩酢ビ樹脂とシリコンアクリル樹脂からなり、その重量比が22:78のものを用いた。
【0017】
一方、厚さ0.27mmの溶融亜鉛メッキ鋼板を準備した。そして、その表面に接着剤を塗布し、上記の化粧シートをラミネートした後、エンボス形状を有するメタルロールにて凹凸加工を行った。次いで、化粧面の裏面にフェノールフォームの合成樹脂を注入し、水酸化アルミシートで裏打ちをし、加熱しながら発泡させた。その後、さね加工部の折曲げ加工を行って建築用パネルとしての金属化粧板を製造した。
【0018】
(比較例1)
着色塩化ビニルフィルムに塩酢ビ系樹脂をバインダーとしたインキで石目柄を印刷した。その他の条件は実施例1と同様にして建築用パネルを得た。
【0019】
(比較例2)
着色塩化ビニルフィルムに塩酢ビ系樹脂をバインダーとしたインキで石目柄を印刷した上に、透明塩化ビニルフィルムをダブリングエンボスした。その他の条件は実施例1と同様にして建築用パネルを得た。
【0020】
(比較例3)
着色塩化ビニルフィルムに塩酢ビ系樹脂をバインダーとしたインキで石目柄を印刷した上に、透明アクリルフィルムをダブリングエンボスした。その他の条件は実施例1と同様にして建築用パネルを得た。
【0021】
(評価)
上記の実施例と比較例1〜3で得られた各金属化粧板に対し、常温と0℃の条件でそれぞれ曲げ加工を行って異常の有無を目視で観察した。また、マジックインキ(登録商標)にて耐汚染性(JISK6902)を評価した。さらに、サンシャインウェザオメーターにて耐候性テストを行った。それらの結果を表1に示す。この表1から分かるように、実施例の金属化粧板は比較例のものと比べ、曲げ加工、耐汚染性、耐候性についてそれぞれ良好な結果となった。
【0022】
【表1】

Figure 0004070046
【0023】
以上説明したように、本発明では、着色塩化ビニルフィルムにアクリル系樹脂をバインダーとするインキで絵柄印刷層を設け、その上から塩酢ビ樹脂とシリコンアクリル樹脂からな透明保護層を設けてなる化粧シートを表面に貼着したことで、意匠性が高く耐候性の良好な金属化粧板を得ることができた。
【図面の簡単な説明】
【図1】本発明の金属化粧板の一例を示す断面図である。
【符号の説明】
1 金属基材
2 接着剤層
3 着色塩ビフィルム
4 絵柄印刷層
5 表面保護層[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a metal decorative board in which a surface of a metal substrate is decorated.
[0002]
[Prior art]
Conventionally, as this type of metal decorative board, there is one in which a decorative sheet formed by embossing a clear film on a printed colored PVC film is pasted, or one coated with a single color paint or printed with an offset gravure. Are known.
[0003]
[Problems to be solved by the invention]
Among those described in the prior art, the former metal decorative plate has problems such as cracking during bending and poor weather resistance, and the latter metal decorative plate has poor design properties. There is.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a metal decorative plate having high design properties and good weather resistance.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is a metal decorative board in which a colored PVC film, a pattern printing layer, and a transparent or translucent surface protective layer are sequentially provided on a metal substrate, printing layer is formed with an ink having an acrylic resin as a binder, the surface protective layer is characterized by comprising a vinyl chloride acetate resin and silicone acrylate Le resins.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a cross-sectional view showing an example of a metal decorative board according to the present invention. The metal decorative board shown in FIG. 1 is provided with an adhesive layer 2 on a metal substrate 1 and a colored PVC film 3. A pattern printed layer 4 and a surface protective layer 5 formed thereon are laminated from above.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
As the metal substrate, a metal plate such as an iron plate, a galvanized steel plate, a copper plate, or an aluminum plate is used.
[0008]
As the polyvinyl chloride film, a known film for building materials is used. Particularly for exterior applications, it is desirable that the pigment concentration is 10 parts or more by weight, that the UV hiding rate is 95% or more in all regions of 300 nm to 400 nm, and the thickness is 200 μm or more. If these values are not met, discoloration and peeling from the substrate will occur quickly in terms of weather resistance.
[0009]
The pattern printing layer is formed with ink by a known printing method such as gravure printing, offset printing, silk screen printing, transfer printing from a transfer sheet, or the like. Examples of the pattern include a wood grain pattern, a stone pattern, a cloth pattern, a skin pattern, a geometric figure, a character, a symbol, or a solid surface. The ink to be used is one in which an acrylic resin is used as a binder and a pigment is added thereto in consideration of adhesion to a metal substrate and weather resistance. What mix | blended acrylic resin and vinyl chloride vinyl resin by 8: 2 is favorable. When this ratio is close to 1: 1, the weather resistance is inferior, and when it is close to 10: 0, a crack is generated by bending after lamination.
[0010]
As the pigment, those having weather resistance are used, organic pigments such as isoindolinone, slen yellow G, and permanent yellow HR as yellow pigments, inorganic pigments such as yellow iron oxide and nickel titanium yellow, quinacridone red as red pigments, As organic pigments such as permanent red FGR and permanent red F4RH, and petals, inorganic pigments such as mercury cadmium sulfide, organic pigments such as phthalocyanine blue and selenium blue RS as blue pigments, inorganic pigments such as ultramarine and bitumen, and black pigments Examples of carbon black and white pigment include titanium dioxide and antimony trioxide. Among these, iron oxide (yellow, brown), phthalocyanine blue (blue), carbon black (black), and titanium dioxide (white) are desirable.
[0011]
As an adhesive used for laminating, phenol resin, furan resin, urea resin, melamine resin, polyester resin, polyurethane resin, epoxy resin, or other thermosetting resin, if necessary, Cross-linking agents such as isocyanate and amine, polymerization initiators such as methyl ethyl ketone peroxide, hydroperoxide and azobisisobutyronitrile, polymerization accelerators such as cobalt naphthenate and dimethylaniline, polyvinyl acetate, poly Vinyl chloride, polyvinyl acetate / vinyl chloride copolymer, ethylene / vinyl alcohol copolymer, ethylene / vinyl acetate copolymer, vinyl polymers such as polyvinyl alcohol and polyvinyl butyral, polyolefin resins such as polyethylene and polypropylene, polyacryl Acid ester Resin, poly (meth) acrylate resin, nitric acid fiber, acetic acid fiber, polyamide, ionomer or other thermoplastic resin, butadiene-acrylonitrile rubber, neoprene rubber, natural rubber, or other rubber, or glue, The main component is a mixture of one or more of natural resins such as casein, dextrin, starch, gum arabic, rosin, etc., and if necessary, known fillers, pigments, dyes, stabilizers, solvents A material to which a plasticizer or the like is added can be used as an adhesive. Among these, those considering the adhesion between the metal substrate and the vinyl chloride film and other aptitudes are used.
[0012]
As a curing method of these adhesives, an appropriate method such as a solvent drying type, an emulsion type, a hot melt solidification type, a thermosetting type, etc. can be selected. Can take form.
[0013]
The application method of the adhesive to the adhesive surface is applied in the case of a liquid adhesive, but in the case of a hot melt solidification type, the opposite base material is applied by applying it to the adhesive surface by an extrusion coat or the like. A method of laminating and pressing, once coating and drying on the adhesive surface, laminating the opposite substrate and heating and pressing, in the case of film type, laminating an adhesive film between the substrates to be bonded and pressurizing or heating There is a method of applying pressure. If necessary, the adhesion surface may be subjected to known easy adhesion treatment such as corona discharge treatment, plasma treatment, primer coating, degreasing treatment, and surface roughening treatment.
[0014]
The surface protective layer is a layer for protecting the underlying ink layer, and is formed of a translucent or transparent resin layer having weather resistance, stain resistance and bending workability. In the present invention, a silicon acrylic resin having a molecular weight of 200,000 to 300,000 is used. Moreover, it is preferable to use the thing which consists of a vinyl chloride resin and a silicon acrylic resin, and the weight ratio is 10: 90-40: 60. Furthermore, it is preferable to use a polymer having a polymerization degree of 700 to 2000 and Tg of 70 to 100 ° C. If the weight ratio of vinyl chloride is too large, the stain resistance and weather resistance will be inferior. Conversely, if the weight ratio of silicon acrylic resin is too large, the solvent resistance will be inferior. Further, for matting, a fluorinated wax or hydrophobic silica to which 0.5 to 30 parts by weight are added as required may be used.
[0015]
【Example】
Examples of the present invention will be described below in detail together with comparative examples.
[0016]
(Example) A stone pattern was printed on a colored vinyl chloride film with an ink containing an acrylic resin as a binder, and a transparent protective layer was provided thereon with a silicon acrylic resin. As the silicon acrylic resin, a resin composed of a vinyl chloride resin and a silicon acrylic resin and having a weight ratio of 22:78 was used.
[0017]
On the other hand, a hot-dip galvanized steel sheet having a thickness of 0.27 mm was prepared. And after apply | coating an adhesive agent to the surface and laminating said decorative sheet, the uneven | corrugated process was performed with the metal roll which has an embossed shape. Next, a phenol foam synthetic resin was poured into the back of the decorative surface, lined with an aluminum hydroxide sheet, and foamed while heating. Then, the metal processing board as a building panel was manufactured by bending the tongue processing portion.
[0018]
(Comparative Example 1)
A stone pattern was printed on a colored vinyl chloride film with an ink using a vinyl chloride resin as a binder. Other conditions were the same as in Example 1 to obtain a building panel.
[0019]
(Comparative Example 2)
On the colored vinyl chloride film, a stone pattern was printed with an ink containing a vinyl chloride resin as a binder, and a transparent vinyl chloride film was doubling embossed. Other conditions were the same as in Example 1 to obtain a building panel.
[0020]
(Comparative Example 3)
On the colored vinyl chloride film, a stone pattern was printed with an ink using a vinyl chloride resin as a binder, and a transparent acrylic film was embossed with a doubling. Other conditions were the same as in Example 1 to obtain a building panel.
[0021]
(Evaluation)
The metal decorative plates obtained in the above Examples and Comparative Examples 1 to 3 were bent at normal temperature and 0 ° C., and the presence or absence of abnormality was visually observed. Further, the stain resistance (JISK6902) was evaluated with Magic Ink (registered trademark). Furthermore, a weather resistance test was conducted with a sunshine weatherometer. The results are shown in Table 1. As can be seen from Table 1, the metal decorative board of the example had better results for bending, contamination resistance, and weather resistance than those of the comparative example.
[0022]
[Table 1]
Figure 0004070046
[0023]
As described above, in the present invention, a picture-printed layer is provided with an ink having an acrylic resin as a binder in pigmented polyvinyl chloride film, a transparent protective layer ing from VCVAC resin and silicone acrylate Le resins thereon By sticking the decorative sheet provided on the surface, it was possible to obtain a metal decorative board having high design properties and good weather resistance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of a metal decorative board of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Metal base material 2 Adhesive layer 3 Colored polyvinyl chloride film 4 Picture printing layer 5 Surface protective layer

Claims (2)

金属基材の上に着色塩ビフィルム、絵柄印刷層、透明もしくは半透明の表面保護層が順次設けられている金属化粧板であって、前記絵柄印刷層がアクリル系樹脂をバインダーとするインキで形成され、前記表面保護層が塩酢ビ樹脂とシリコンアクリル樹脂からなることを特徴とする金属化粧板。A metal decorative board in which a colored PVC film, a pattern printing layer, and a transparent or translucent surface protective layer are sequentially provided on a metal substrate, and the pattern printing layer is formed of ink using an acrylic resin as a binder. are, metal decorative plate, wherein the surface protective layer is made of vinyl chloride acetate resin and silicone acrylate Le resins. 表面保護層を形成する塩酢ビ樹脂とシリコンアクリル樹脂の重量比が10:90〜40:60である請求項1に記載の金属化粧板。VCVAC resin and silicone acrylic tree weight ratio of fat 10 to form a surface protective layer: 90 to 40: metal decorative plate according to claim 1 which is 60.
JP9386398A 1998-03-24 1998-03-24 Metal decorative board Expired - Fee Related JP4070046B2 (en)

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JP4070046B2 true JP4070046B2 (en) 2008-04-02

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JP5809615B2 (en) * 2012-03-01 2015-11-11 株式会社神戸製鋼所 Colored resin coated metal plate

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