JP4229250B2 - Metal foil composite member and manufacturing method thereof - Google Patents

Metal foil composite member and manufacturing method thereof Download PDF

Info

Publication number
JP4229250B2
JP4229250B2 JP11682899A JP11682899A JP4229250B2 JP 4229250 B2 JP4229250 B2 JP 4229250B2 JP 11682899 A JP11682899 A JP 11682899A JP 11682899 A JP11682899 A JP 11682899A JP 4229250 B2 JP4229250 B2 JP 4229250B2
Authority
JP
Japan
Prior art keywords
metal foil
adhesive
composite member
thermosetting
base material
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 - Lifetime
Application number
JP11682899A
Other languages
Japanese (ja)
Other versions
JP2000301654A (en
Inventor
浩海 大林
昌樹 馬渕
利坦 寺田
琢郎 森本
真幸 堀内
Original Assignee
株式会社エフ浜松
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 株式会社エフ浜松 filed Critical 株式会社エフ浜松
Priority to JP11682899A priority Critical patent/JP4229250B2/en
Publication of JP2000301654A publication Critical patent/JP2000301654A/en
Application granted granted Critical
Publication of JP4229250B2 publication Critical patent/JP4229250B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Description

【0001】
【発明の属する技術分野】
本発明は、化粧台、台所部材、間仕切り、扉、各種テーブル、浴室カウンター、壁材、洗面台等に利用される内外装用の金属箔複合部材及びその製造方法に関する。
【0002】
【従来の技術】
金属板材、特にステンレス鋼板は耐久性、耐食性及び耐火性に優れ、しかも堅牢で豪華な外観を有するため、各種の内外装用の建築材料として利用されている。建築材料としてのステンレス鋼板は、必要な構造強度を得るためにはおよそ300μm以上の厚みが必要であるため、切り出し等の加工を現場では行うことができない。そのため、ステンレス鋼板の加工は工場で行われているのが現状である。
【0003】
一方、内外装用の建築材料として、繊維板、合板、パーチクルボード、無機板、発泡板、樹脂板等の基材とアルミニウム板とを接合した複合部材が古くから利用されている。アルミニウム板を用いた複合部材は表面が傷つき易く、また、150°C以上に長期間暴露されると熱クリープにより軟化する性質がある。そのため、薄い箔状のアルミニウムを用いた複合部材の場合には、利用分野が限られているのが現状である。
【0004】
基材とアルミニウム以外の金属とを接合した複合部材として、本発明者らは基材と厚み50〜300μmのステンレス箔とを接合した連続生産可能なステンレス箔複合部材を種々提案してきた。この複合部材は、耐久性、耐火性、断熱性及び防音性、さらには電磁波シールド性に優れた高い機能を有する。
【0005】
【発明が解決しようとする課題】
前述したアルミニウムやステンレス等の金属箔を用いた複合部材は、基材に接着剤を介して金属箔を貼り付けたものであるが、接着剤中に揮発性有機化合物(VOC)が含有される場合は、該揮発性有機化合物が複合部材製品に残存してしまい、これがハウスシックの原因となり、健康汚染を引き起こすという問題がある。
【0006】
この場合、接着剤として、揮発性有機化合物を含有しないか、或いは揮発性有機化合物の含有量が少ない無溶剤型又は非有機溶剤型の接着剤を用いることにより、健康汚染を防止することができると考えられる。無溶剤型又は非有機溶剤型の接着剤としては、熱硬化性樹脂を用いた熱硬化性接着剤が挙げられる。
しかしながら、接着剤として熱硬化性樹脂を用いた場合、金属箔と基材とを貼り合わせた後の熱硬化性樹脂の硬化収縮が不均一に生じてしまい、金属箔表面が柚子肌状になって鮮映性が悪化したり、また、金属箔と基材とを貼り合わせた後に加熱する工程が必要となるが、この時に基材と金属箔との熱膨張・熱収縮率の差により複合部材に反りが発生してしまい、高品位の製品が得られないという問題がある。
【0007】
本発明はかかる不都合を解消するためになされたものであり、健康汚染を防止することができるのは勿論のこと、鮮映性が良好で、反りのない高品位の金属箔複合部材及びその製造方法を提供することを目的とする。
【0008】
【課題を解決するための手段】
かかる目的を達成するために、請求項1に係る金属箔複合部材は、板状の基材と、該基材の表面に接着剤を介して接合された金属箔とを備えた金属箔複合部材において、
前記接着剤、無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤であり、該接着剤の硬化後の50%モジュラスが15kgf/cm 〜25kgf/cm であり、写像鮮明度光学くしの幅1mmのとき70%以上であり、単位長さあたりの反り量が5mm/m以下であることを特徴とする。
【0009】
請求項2に係る金属箔複合部材は、請求項1に記載の金属箔複合部材において、前記接着剤には、平均粒子径が20μm〜60μmの球状の分散性充填剤が、20〜70体積%含まれることを特徴とする
【0010】
請求項3に係る金属箔複合部材の製造方法は、板状の基材の表面に接着剤を介して金属箔を接合する金属箔複合部材の製造方法において、
前記接着剤は、無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤であり、該接着剤の硬化後の50%モジュラスが15kgf/cm 〜25kgf/cm であり、該熱硬化性弾性接着剤を前記金属箔に塗工した後に該金属箔を前記接着剤を塗工していない面側から加熱し、しかる後に前記基材と前記金属箔とをはり合わせてプレスすることにより、写像鮮明度が光学くしの幅1mmのとき70%以上であることを特徴とする。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態の一例を説明する。この実施の形態の金属箔複合部材は、板状の基材と、該基材の表面に無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤を介して接合された金属箔とを備えたものであり、写像鮮明度光学くしの幅1mmのとき70%以上、単位長さあたりの反り量が5mm/m以下とされている。
【0013】
このように接着剤として、揮発性有機化合物の存在が認められないか、存在しても極わずかな無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤を用いているので、ハウスシック等の健康汚染を良好に防止することができる。また、金属箔複合部材の金属箔側の表面はJISH8686規定のアルミニウム及びアルミニウム合金の陽極酸化被腹の写像性試験方法に準拠した写像鮮明度が光学くしの幅1mmのとき70%以上となっているので、良好な鮮映性を得ることができ、更に、金属箔複合部材自体の反りが5mm/m以下であるので、施工時の寸法精度及び作業性を向上させることができ、施工後の仕上り状態を良好なものとすることができる。
【0014】
ここで、無溶剤型とは、接着剤中に希釈用の有機溶剤等の揮発性有機化合物を含まないものをいい、一方、非有機溶剤型とは、水性接着剤を意味し、水溶液又は水分散系として提供される。これら無溶剤型、非有機溶剤型の熱硬化性弾性接着剤には、作業性等の改善のために少量の揮発性有機化合物を使用することは許されるが、製品中に残存するのを防止する観点から、許容される揮発性有機化合物の含有量は10重量%以下、好ましくは2重量%以下である。なお、揮発性有機化合物を全く含有していないものが最も好ましいのは勿論である。
【0015】
熱硬化性とは、必ずしも熱硬化するものに限定されず、室温で架橋反応するものも含まれ、いわゆる、高分子材料分野で熱で軟化する熱可塑性樹脂と分別されるものである。従って、本発明の熱硬化性弾性接着剤は、加熱硬化型接着剤及び常温硬化型接着剤として市販されている任意の熱硬化型弾性接着剤を指し、特に、硬化後の接着剤がゴム状弾性に近い性質を示す弾性接着剤から選ばれる
【0016】
尚、ゴム状弾性とは、−18°C〜66°Cまでの温度において、少なくともその長さの2倍まで伸長した後速やかに原長まで回復することができる性質((株)工業調査会発行、英和プラスチック工業辞典P.845参照)とされているが、本発明においては、接着剤業界で一般に弾性接着剤と呼称されている伸び率200%未満の弾性体のゴム状弾性に近い性質を示すものでもかまわない。
【0017】
従って、ここで言う弾性接着剤とは、硬化後の接着剤の弾性を示す伸び率が10〜400%、好ましくは50〜300%を示す接着剤を意味する。
伸び率が10%未満では、金属箔の熱膨張による変形に追従できず、逆に400%を超えるものは一般に軟らかいため、柚子肌が発生しやすく良好な鮮映性を確保しにくい。
【0018】
また、硬化後の接着剤の伸びやすさの目安としてモジュラス(試験片を一定の伸び率まで伸長するのに必要な引張応力を伸び率で割った値)も重要であり、50%モジュラス(M50)が10kgf/cm〜100kgf/cmの範囲内にあることが好ましく、さらに好ましくは15kgf/cm25kgf/cmの範囲内であるとよい。
【0019】
50%モジュラスが10kgf/cm2 未満では、金属箔表面での衝撃に対する抵抗が弱くなって複合部材の金属箔側表面に傷が入りやすくなり、一方、100kgf/cm2 を超えると、硬化後の接着剤が伸びにくくなり、硬化のための加熱後に金属箔の熱収縮に対して追従できなくなり、柚子肌または反りの原因となりやすい。
【0020】
金属箔としては、一般的な内外装用金属箔、例えば、アルミニウム、ステンレス鋼、銅、黄銅、錫の箔、若しくは錫、亜鉛等で防錆処理された鉄の箔、又はこれらの金属をメッキ、塗装、印刷等によって表面処理した箔を任意に用いることができるが、耐久性の観点からステンレス箔が最も好ましい。また、金属箔の厚みは特に限定されないが、省資源、切断等の加工性の観点から、30〜300μmが好ましく、50〜200μmが更に好ましい。
【0021】
金属箔の厚さが30μm未満では、建築用部材としては強度が不十分であり、一方、300μmを越えると、切断等に特殊な治具を必要とし、かつ、重量が大きくなり、省資源にも反する。
また、基材としては、例えば繊維板、合板やパーチクルボード等の木質基材、繊維セメント、珪酸カルシウム又は石骨ボード等の無機質基材、発泡板や樹脂板等の建築用基材の中からVOCを含まないものを適宜選択して用いることができる。
【0022】
次に、かかる構成の金属箔複合部材の製造方法について説明する。まず、本発明の第1の態様の実施の形態である金属箔複合部材の製造方法から説明すると、この製造方法は、板状の基材の表面に球状の分散性充填剤を含有する無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤を介して金属箔を接合するようにしたものである。
【0023】
接着剤として、無溶剤型または非有機溶剤型の熱硬化性弾性接着剤を用いることにより、金属箔複合部材中から揮発性有機化合物が検出されない程度とすることが可能となる。そして、熱硬化性弾性接着剤に含有させた球状の分散性充填剤は、接着剤の硬化が不均一に生じることを防止し、金属箔複合部材の反りを5mm/m以下に、また、光学くしの幅が1mmのとき、写像鮮明度を70%以上とすることを可能にする。
【0024】
ここで、球状の分散性充填剤としては、粒子形状が球状体や星状体等で、粒子径が5〜200μmの有機または無機の物質を用いることができる。これらは分散性に優れ、接着剤組織の硬化収縮を抑制したり均質化する機能を有する。なかでも、内部に空隙を有する球状中空体は、圧縮応力を緩和し接着剤の硬化収縮時の収縮率を緩和して複合部材の変形を抑制する機能を有するので特に好ましい。
【0025】
球状中空体として現在入手可能なものとしては、シラスバルーン等のシリカ質の中空体、又は塩化ビニリデンのシェルにブタンガスを充填したビニル系樹脂の中空体等が挙げられる。
球状体、球状中空体又は星状体の粒子径が大きすぎると、接着剤層の厚み方向への配列数が少なくなり、金属箔側の表面に凹凸が発生する原因となりやすいので、粒子径は接着剤層の厚みの1/2以下のものが適しており、一方、粒子径が小さすぎると、球状や星状の形の特長が活かされなくなって通常の無定形粉体を用いた場合と同様となり、金属箔側の表面性の改善が不十分となる。このため、粒子径は5〜200μmである必要があり、好ましくは10〜100μmである。
【0026】
以上説明した分散性充填剤は、熱硬化性接着剤の種類により適宜選択して用いればよいが、1〜90体積%、好ましくは10〜70体積%を熱硬化性接着剤に含有させることが必要であり、少なすぎると効果を発揮せず、多すぎると金属箔と基材との間の接着力を低下させる原因になる。また、本発明では、分散性充填剤以外に通常添加される充填剤や着色剤等を併用してもよい。
【0027】
なお、熱硬化性弾性接着剤は室温において塗工可能な粘性を有していることが好ましく、具体的には室温で100〜50000cps、より好ましくは500〜30000cpsの粘度である。熱硬化性弾性接着剤の粘度が低すぎると、金属箔又は基材に熱硬化性弾性接着剤を塗工する際に塗膜の厚みが均一にならず、金属箔と基材とを貼り合わせた後に柚子肌や反りが発生する原因となってしまう。また、粘度が高すぎると塗工が困難となり、特殊な塗工機が必要となる。
【0028】
更に、熱硬化性弾性接着剤は、50〜200°Cの短時間の加熱で急速に硬化収縮するものを用いることが好ましい。ここで、硬化収縮は、30秒〜20分、より好ましくは2分〜10分で、非加圧下の開放系での収縮率が50%以下に達することが好ましく、より好ましくは20%以下である。
【0029】
熱硬化性弾性接着剤の硬化収縮時間が長すぎると、加圧に長時間必要として非加圧下での後養生中に金属箔と接着剤との間で収縮率に差が生じるため、柚子肌や反りの発生原因となり易い。また、熱硬化性弾性接着剤の硬化収縮時間が短すぎると、金属箔と基材との接合不良が生じ易い。以上説明した熱硬化性弾性接着剤としては、アクリル系、エポキシ系、ウレタン系、シリコン系、フッ素系、オレフィン系、ビニル系等のα−β不飽和重合体の1種または2種以上の混合物、共重合体が挙げられる。
【0030】
金属箔と基材とを接合する方法は、1〜90体積%の球状の分散性充填剤を含有させた熱硬化性弾性接着剤を介して両者を貼り付ければ、常用されている任意の方法が適用できるが、熱硬化性弾性接着剤の基材へのめり込みの調整及び連続生産性の点から、金属箔に熱硬化性弾性接着剤を塗布した後、塗布面に基材を重ねて貼り合わせてプレスし、その後、切断するのが好ましい。
【0031】
次に、本発明の第2の態様の実施の形態である金属箔複合部材の製造方法を説明する。この製造方法は、板状の基材の表面に無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤を介して金属箔を接合するに際して、金属箔を加熱した後、基材と金属箔とをはり合わせてプレスするようにしたものである。
【0032】
本発明者等は、金属箔と基材とを熱硬化性弾性接着剤を介して貼り合わせてプレスする方法について種々の改良研究を行った結果、金属箔を遠赤外線等を利用して加熱した後、金属箔と基材とを貼り合わせてプレスを行うと、複合部材の金属箔側表面の平滑性が改善されることを知見した。これは、金属箔と基材とを熱硬化性弾性接着剤を介して貼り合わせる前に金属箔を加熱すると接着剤の硬化速度が速められ、該貼り合わせ時及びプレス時には接着剤が部分架橋した状態に達しているので該接着剤の硬化収縮の不均一性が緩和され、しかも金属箔側から接着剤の硬化が進行するので、複合部材の金属箔側の表面平滑性が改善されるものと考えられる。
【0033】
また、金属箔と基材とを熱硬化性弾性接着剤を介して貼り合わせる前に該金属箔を加熱すると、金属箔は加熱により熱膨張しているので該金属箔を室温の基材に貼り合わせてプレスを行うと、その後の室温までの冷却において基材は熱収縮せずに金属箔は熱収縮する結果、金属箔は緊張された状態となり、これにより、複合部材の金属箔側の表面平滑性が改善されるものと考えられる。尚、金属箔の加熱は、金属箔の表面に熱硬化性弾性接着剤を塗工した後がよいここで、熱硬化性弾性接着剤を金属箔の表面に塗工した後に、金属箔を加熱するときには、接着剤の硬化を金属箔側から進行させるために、金属箔の接着剤を塗工していない面側から加熱する必要がある。
【0034】
ここで、金属箔の加熱温度は熱硬化性弾性接着剤の種類、金属箔の種類、厚みにより適宜決定することができるが、室温よりも20°C以上、好ましくは50°C以上高い温度まで加熱すれば、上述の効果が現れ始める。また、加熱温度が高すぎると熱硬化性弾性接着剤が熱融解したり、硬化速度が速すぎて接着不良の原因となるので、250°C以下、好ましくは200°C以下とする。
【0035】
更に、プレス時の圧力は特に限定しないが、1〜30kgf/cm2 の圧力下で、1〜2分程度のプレスにより良好な表面性状を有する複合部材が得られることを確認した。なお、プレス方法としては、ロールプレスやベルトプレス等があるが、平面状に均質加圧されるベルトプレスが好ましい。
図1に本発明の第2の態様の実施の形態である金属箔複合部材の製造方法に好適な製造装置の一例を示す。
【0036】
図において符号2は金属箔巻出装置であり、該金属箔巻出装置2から巻き出された金属箔1の片面には接着剤塗工装置3により熱硬化性弾性接着剤が塗工される。なお、図中矢印Aは金属箔1の搬送方向を示す。
接着剤塗工装置3の下流側には加熱装置4が設置されており、該加熱装置4によって熱硬化性弾性接着剤が塗工された金属箔1の加熱が行われるようになっている。加熱装置4から出た金属箔1は、ベルトプレス装置5に導入される。
【0037】
ベルトプレス装置5は上下一対のスチール製ベルト6を備えており、該スチール製ベルト6によって、金属箔1と図示しない基材搬入装置により図中矢印B方向に導入される板状の基材8とを挟圧し、これにより、金属箔1と基材8とが貼り合わされるようになっている。
上下スチール製ベルト6はそれぞれ一対のニップロール7により張力を負荷された状態で循環駆動されるようになっており、また、金属箔1と基材8との挟圧を行う位置にはプレス圧力を付与するためのプレス圧負荷ロール9が配列されている。ベルトプレス装置5により金属箔1と基材8とが熱硬化性弾性接着剤を介して接合された後は、該ベルトプレス装置5の下流側に配設された切断機10によって所定の長さに切断される。
【0038】
【実施例】
図1に示す製造装置を用いて板状の基材の表面に接着剤を介してステンレス鋼(SUS304)箔を接合して金属箔複合部材を製造した。この際の接着剤の種類、接着剤に含有させる充填剤、金属箔の厚さ、基材の種類、接着剤の塗工厚さ、プレス前加熱条件、ベルトプレス条件等を表1、表2及び表3に示す。なお、表1及び表2(No.1〜47)は本発明の第1の態様の製法に対応する実施例として加熱装置4によるプレス前加熱は行わないようにし、表3は本発明の第2の態様の製法に対応する実施例として球状の分散性充填剤は無添加としている。表3中No.48、51、54、56、57、62〜70は、プレス前の加熱条件として金属箔の接着剤塗工面の反対側の表面を加熱しており、No.71、72はプレス前の加熱条件として金属箔の接着剤塗工面を加熱した。また、表1〜表3中の接着剤1〜5、充填剤1〜7は次の通りである。
接着剤1
種類:熱硬化性弾性接着剤
物質名:アクリルウレタン系水性エマルジョン型接着剤
商品名:EM802、セメダイン(株)製 弾性非有機溶剤型
不揮発分:50wt% 残余 水(VOC1%以下)
50%モジュラス:15kgf/cm
接着剤2
種類:熱硬化性弾性接着剤
物質名:シリコーン変性エポキシ系接着剤
商品名:PM210、セメダイン(株)製 弾性無溶剤型
不揮発分:99wt%以上(VOC1%以下)
50%モジュラス: 25kgf/cm
接着剤3
種類:熱硬化性弾性接着剤
物質名:ウレタン系ホットメルト型接着剤
商品名:ボンドマスター170−7310、日本エヌエスシー(株)製 弾性無溶剤型
不揮発分:99wt%以上(VOC1%以下)
50%モジュラス: 15kgf/cm
接着剤4(比較例)
種類:熱硬化性非弾性接着剤
物質名:エポキシ系接着剤
商品名:EP007、セメダイン(株)製 非弾性無溶剤型
不揮発分:99wt%以上(VOC1%以下)
50%モジュラス:伸び10%以内で破断測定できず
接着剤5(比較例)
種類:熱可塑性接着剤
物質名:オレフィン変性エチレン−酢酸ビニル系水性エマルジョン型接着剤
商品名:EM−456、セメダイン(株)製 非弾性有機溶剤型
不揮発分:50wt% 残余 水(VOC1%以下)
50%モジュラス: 7kgf/cm
充填剤1
物質名:シリカ系中空球状粒子
商品名:セルスターPZ6000 東海工業(株)製
平均粒子径:40μm
充填剤2
物質名:塩化ビニリデン樹脂系中空球状粒子
商品名:マツモトマイクロスフェアーF−85 松本油脂製薬(株)製
平均粒子径:25μm
充填剤3
物質名:アクリル樹脂系球状体
商品名:MR−60G 綜研化学(株)製
平均粒子径:60μm
充填剤4
物質名:アクリル樹脂系球状体
商品名:MR−20G 綜研化学(株)製
平均粒子径:20μm
充填剤5
物質名:アクリル樹脂系球状粒子
商品名:MR−13GH 綜研化学(株)製
平均粒子径:11μm
充填剤6
物質名:アクリル樹脂系球状粒子
商品名:MR−7G 綜研化学(株)製
平均粒子径:6μm
充填剤7(比較例)
物質名:タルク微粉末
商品名:クラウンタルクDR 松村産業(株)製
平均粒子径:22μm
形状: 不定形
各製造法により得られた金属箔複合部材No.1〜72について、揮発性有機化合物の放出量を調査したところ、検出されないか、或いは基材中に含まれるホルムアルデヒド等の揮発性有機物質であり、臭気も認められなかった。
【0039】
また、金属箔複合部材の金属箔側の表面性状、金属箔と基材との接着強度および反りの有無について調査した結果を表1、表2及び表3に併せて示す。
ここで、表面性状については、J1SH8686「アルミニウム及びアルミニウム合金の陽極酸化被膜の写像性試験方法」に準拠して、光学くしの幅1mmの時の写像鮮明度及び目視で表面性を評価した。表面性の評価基準は、
◎:写像鮮明度が75%以上で、柚子肌等が認められない。
【0040】
○:写像鮮明度が75〜70%の範囲で、柚子肌等が認められない。
×:写像鮮明度が70%未満、又は柚子肌が発生している。
とした。
また、反りの有無については、反りが5mm/m以下のものを反り無し、5mm/m超のものを反り有りと判定した。
【0041】
接着強度については、J1SK6854「接着剤のはく離接着強さ試験方法」に準拠して、180度はく離試験を行い評価した。評価基準は、
◎:2kgf/25mm以上
○:1kgf/25mm超、2kgf/25mm未満
△:1kgf/25mm以下
とした。
(J1SK6854に準拠、但し20mm幅を25mm幅とした。)
【0042】
【表1】

Figure 0004229250
【0043】
【表2】
Figure 0004229250
【0044】
まず、表1及び表2から明らかなように、比較例である分散性充填剤が無添加のNo.1、No.38〜43、比較例である充填剤として微細粉末を添加したNo.8〜10、比較例である熱可塑性接着剤を用いたNo.23〜25、比較例である非弾性無溶剤型の熱硬化性接着剤を用いたNo.32〜37の各金属箔複合部材は、いずれも接着強度は満足するものの表面性状が悪く、反りの発生が見られた。
【0045】
これに対し、本発明の第1の態様の製造方法で得られた各金属箔複合部材No.2〜7、No.11〜22、No.26〜31、No.44〜47は、いずれも表面性に関して70%以上の写像鮮明度を有するとともに柚子肌が認められず、また、反りについても5mm/m以下であり、さらに、接着強度についても1kgf/25mm超の接着強度を示していることがわかる。
【0046】
【表3】
Figure 0004229250
【0047】
また、表3から明らかなように、比較例であるプレス前加熱を行わないNo.49,50,52,53,55,58〜61、比較例である非弾性無溶剤型の熱硬化性接着剤を用いたNo.56、比較例である熱可塑性接着剤を用いたNo.57の各金属箔複合部材は、いずれも接着強度は満足するものの表面性状が悪く、反りの発生が見られた。また、比較例である金属箔のプレス前加熱を接着剤塗工面側から行ったNo.71、72は表面性及び反り共に不十分であった。
【0048】
これに対し、本発明の第2の態様の製造方法で得られた各金属箔複合部材No.48,51,54,62〜70は、いずれも表面性に関して75%以上の写像鮮明度を有するとともに柚子肌が認められず、また、反りについても5mm/m以下であり、さらに、接着強度についても2kgf/25mm以上の接着強度を示していることがわかる。
【0049】
【発明の効果】
上記の説明から明らかなように、本発明によれば、健康汚染を防止することができるのは勿論のこと、鮮映性が良好で、反りのない高品位の金属箔複合部材を提供することができるという効果が得られる。
【図面の簡単な説明】
【図1】本発明の第2の態様の実施の形態である金属箔複合部材の製造方法に好適な製造装置の全体概略図である。
【符号の説明】
1…金属箔
2…金属箔巻出装置
3…接着剤塗工装置
4…加熱装置
5…ベルトプレス装置
6…スチール製ベルト
7…ニップロール
8…基材
9…プレス圧負荷ロール
10…切断機[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a metal foil composite member for interior and exterior used for a dressing table, a kitchen member, a partition, a door, various tables, a bathroom counter, a wall material, a wash basin, and the like, and a manufacturing method thereof.
[0002]
[Prior art]
Metal plate materials, particularly stainless steel plates, are excellent in durability, corrosion resistance and fire resistance, and have a robust and luxurious appearance, and are therefore used as various building materials for interior and exterior. A stainless steel plate as a building material requires a thickness of about 300 μm or more in order to obtain a necessary structural strength, and therefore, processing such as cutting cannot be performed on site. Therefore, the present situation is that the processing of the stainless steel sheet is performed at the factory.
[0003]
On the other hand, as a building material for interior and exterior, a composite member obtained by joining a base material such as a fiber board, a plywood board, a particle board, an inorganic board, a foam board, and a resin board and an aluminum board has been used for a long time. A composite member using an aluminum plate is easily damaged by the surface, and has a property of being softened by thermal creep when exposed to 150 ° C. or more for a long period of time. Therefore, in the case of a composite member using thin foil-like aluminum, the field of use is currently limited.
[0004]
As composite members obtained by joining a base material and a metal other than aluminum, the present inventors have proposed various stainless steel foil composite members that can be continuously produced by joining a base material and a stainless steel foil having a thickness of 50 to 300 μm. This composite member has a high function that is excellent in durability, fire resistance, heat insulation and soundproofing, and electromagnetic shielding properties.
[0005]
[Problems to be solved by the invention]
The composite member using the metal foil such as aluminum or stainless steel described above is obtained by attaching a metal foil to a base material via an adhesive, and the adhesive contains a volatile organic compound (VOC). In this case, there is a problem that the volatile organic compound remains in the composite member product, which causes house sickness and causes health pollution.
[0006]
In this case, health contamination can be prevented by using a solvent-free or non-organic solvent-type adhesive that does not contain a volatile organic compound or has a low volatile organic compound content as an adhesive. it is conceivable that. Examples of the solvent-free or non-organic solvent-type adhesive include a thermosetting adhesive using a thermosetting resin.
However, when a thermosetting resin is used as the adhesive, the shrinkage of the thermosetting resin after the metal foil and the base material are bonded to each other is unevenly generated, and the surface of the metal foil becomes cocoon skin. In addition, the sharpness deteriorates and a heating step is required after the metal foil and the base material are bonded together. At this time, the composite is caused by the difference in thermal expansion / shrinkage rate between the base material and the metal foil. There is a problem that the member is warped and a high-quality product cannot be obtained.
[0007]
The present invention has been made in order to eliminate such inconveniences, and of course can prevent health contamination, as well as a high-quality metal foil composite member having good definition and no warpage, and its manufacture. It aims to provide a method.
[0008]
[Means for Solving the Problems]
To achieve this object, a metal foil composite member according to claim 1 is provided with a plate-like base material and a metal foil joined to the surface of the base material via an adhesive. In
The adhesive is a solvent-free type or a non-organic solvent-thermosetting elastic adhesive, 50% modulus after curing of the adhesive is 15kgf / cm 2 ~25kgf / cm 2 , image clarity is It is 70% or more when the width of the optical comb is 1 mm, and the amount of warpage per unit length is 5 mm / m or less.
[0009]
The metal foil composite member according to claim 2 is the metal foil composite member according to claim 1, wherein the adhesive includes a spherical dispersible filler having an average particle diameter of 20 μm to 60 μm in an amount of 20 to 70% by volume. It is included .
[0010]
The method for producing a metal foil composite member according to claim 3 is a method for producing a metal foil composite member in which a metal foil is bonded to the surface of a plate-like substrate via an adhesive.
The adhesive is a solvent-free or non-organic solvent-type thermosetting elastic adhesive, and 50% modulus after curing of the adhesive is 15 kgf / cm 2 to 25 kgf / cm 2 , and the thermosetting After applying an elastic adhesive to the metal foil, heating the metal foil from the surface side where the adhesive is not applied, and then pressing the base material and the metal foil together to press, The image clarity is 70% or more when the width of the optical comb is 1 mm.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described. The metal foil composite member of this embodiment includes a plate-like base material, and a metal foil joined to the surface of the base material via a solvent-free or non-organic solvent-type thermosetting elastic adhesive. It is as hereinbefore, image clarity is 70% or more when the width 1mm optical comb, the warp amount per unit length is less 5 mm / m.
[0013]
In this way, the presence of volatile organic compounds is not recognized as an adhesive, or even if it is present, a very slight solvent-free or non-organic solvent-type thermosetting elastic adhesive is used. It is possible to prevent health contamination of the body. Further, the surface of the metal foil side of the metal foil composite member is 70% or more when the mapping definition based on the imaging test method for anodized stomach of aluminum and aluminum alloy specified in JISH 8686 is 1 mm in the width of the optical comb. Therefore, good sharpness can be obtained, and further, since the warp of the metal foil composite member itself is 5 mm / m or less, the dimensional accuracy and workability during construction can be improved. The finished state can be made good.
[0014]
Here, the solventless type refers to an adhesive that does not contain a volatile organic compound such as an organic solvent for dilution, while the non-organic solvent type refers to an aqueous adhesive, which is an aqueous solution or water. Provided as a dispersion. These solvent-free and non-organic solvent-type thermosetting elastic adhesives allow a small amount of volatile organic compounds to be used to improve workability, but prevent them from remaining in the product. In view of the above, the allowable content of the volatile organic compound is 10% by weight or less, preferably 2% by weight or less. Of course, those containing no volatile organic compounds are most preferred.
[0015]
The thermosetting is not necessarily limited to those that are thermosetting, but includes those that undergo a cross-linking reaction at room temperature, and are classified as so-called thermoplastic resins that are softened by heat in the field of polymer materials. Therefore, the thermosetting elastic adhesive of the present invention refers to any thermosetting elastic adhesive that is commercially available as a heat curable adhesive and a room temperature curable adhesive, and in particular, the cured adhesive is a rubber-like adhesive. It is selected from elastic adhesives that exhibit properties close to elasticity.
[0016]
In addition, rubber-like elasticity is a property that can be quickly recovered to the original length after extending at least twice the length at temperatures from -18 ° C to 66 ° C (Industry Research Committee, Inc.) In the present invention, an elastic material having an elongation of less than 200% generally called an elastic adhesive in the adhesive industry has properties close to rubbery elasticity. May be used.
[0017]
Therefore, the term “elastic adhesive” as used herein means an adhesive having an elongation percentage of 10 to 400%, preferably 50 to 300%, indicating the elasticity of the adhesive after curing.
If the elongation is less than 10%, the metal foil cannot follow the deformation due to thermal expansion, and on the contrary, if it exceeds 400%, it is generally soft.
[0018]
In addition, the modulus (the value obtained by dividing the tensile stress necessary for elongating the test piece to a certain elongation rate by the elongation rate) is also important as a measure of the ease of elongation of the adhesive after curing, and 50% modulus (M50 ) is may preferably be in the range of 10kgf / cm 2 ~100kgf / cm 2 , more preferably in the range of from 15 kgf / cm 2 ~ 25 kgf / cm 2.
[0019]
If the 50% modulus is less than 10 kgf / cm 2 , the resistance to impact on the metal foil surface becomes weak and the metal foil side surface of the composite member tends to be damaged, whereas if it exceeds 100 kgf / cm 2 , It becomes difficult for the adhesive to stretch, and it becomes impossible to follow the heat shrinkage of the metal foil after heating for curing, which tends to cause cocoon skin or warpage.
[0020]
As the metal foil, a general metal foil for interior and exterior, for example, aluminum, stainless steel, copper, brass, tin foil, or iron foil treated with rust prevention with tin, zinc, or the like, or plating these metals, Although the foil surface-treated by painting, printing, etc. can be used arbitrarily, stainless steel foil is the most preferable from the viewpoint of durability. The thickness of the metal foil is not particularly limited, but is preferably 30 to 300 μm, and more preferably 50 to 200 μm, from the viewpoint of resource saving and workability such as cutting.
[0021]
If the thickness of the metal foil is less than 30 μm, the strength of the building member is insufficient. On the other hand, if the thickness exceeds 300 μm, a special jig is required for cutting and the like, and the weight increases, saving resources. Is also against.
In addition, as a base material, for example, a wood base material such as a fiber board, plywood or particle board, an inorganic base material such as fiber cement, calcium silicate or stone bone board, or a construction base material such as a foam board or a resin board is a VOC. Those not containing can be appropriately selected and used.
[0022]
Next, the manufacturing method of the metal foil composite member having such a configuration will be described. First, the manufacturing method of the metal foil composite member according to the embodiment of the first aspect of the present invention will be described. This manufacturing method is a non-solvent containing a spherical dispersible filler on the surface of a plate-like substrate. A metal foil is bonded via a thermosetting elastic adhesive of a mold or a non-organic solvent type.
[0023]
By using a solvent-free or non-organic solvent-type thermosetting elastic adhesive as the adhesive, it becomes possible to prevent the volatile organic compound from being detected in the metal foil composite member. The spherical dispersive filler contained in the thermosetting elastic adhesive prevents the curing of the adhesive from occurring unevenly, the warpage of the metal foil composite member is 5 mm / m or less, and optical When the width of the comb is 1 mm, the mapping definition can be made 70% or more.
[0024]
Here, as the spherical dispersible filler, an organic or inorganic substance having a particle shape of a sphere or a star and a particle diameter of 5 to 200 μm can be used. These are excellent in dispersibility and have a function of suppressing or homogenizing hardening shrinkage of the adhesive tissue. Among these, a spherical hollow body having voids therein is particularly preferable because it has a function of relieving compressive stress and reducing the shrinkage rate during curing shrinkage of the adhesive and suppressing deformation of the composite member.
[0025]
Examples of currently available spherical hollow bodies include siliceous hollow bodies such as shirasu balloons, and vinyl resin hollow bodies in which a vinylidene chloride shell is filled with butane gas.
If the particle diameter of the spherical body, spherical hollow body, or star-shaped body is too large, the number of arrays in the thickness direction of the adhesive layer is reduced, and unevenness is likely to occur on the surface on the metal foil side. The adhesive layer having a thickness of 1/2 or less is suitable. On the other hand, if the particle diameter is too small, the characteristics of the spherical shape and the star shape cannot be utilized, and a normal amorphous powder is used. Similarly, the surface property on the metal foil side is not improved sufficiently. For this reason, a particle diameter needs to be 5-200 micrometers, Preferably it is 10-100 micrometers.
[0026]
The dispersible filler described above may be appropriately selected and used depending on the type of the thermosetting adhesive, but 1 to 90% by volume, preferably 10 to 70 % by volume may be contained in the thermosetting adhesive. It is necessary, and if it is too small, the effect is not exhibited, and if it is too large, the adhesive force between the metal foil and the substrate is reduced. Moreover, in this invention, you may use together the filler, coloring agent, etc. which are added normally besides a dispersible filler.
[0027]
The thermosetting elastic adhesive preferably has a viscosity that can be applied at room temperature, specifically 100 to 50000 cps at room temperature, more preferably 500 to 30000 cps. If the viscosity of the thermosetting elastic adhesive is too low, the thickness of the coating will not be uniform when the thermosetting elastic adhesive is applied to the metal foil or substrate, and the metal foil and substrate will be bonded together. After that, it will cause cocoon skin and warping. If the viscosity is too high, coating becomes difficult and a special coating machine is required.
[0028]
Furthermore, it is preferable to use a thermosetting elastic adhesive that rapidly cures and shrinks when heated in a short time of 50 to 200 ° C. Here, the curing shrinkage is preferably 30 seconds to 20 minutes, more preferably 2 minutes to 10 minutes, and the shrinkage rate in an open system under non-pressurization preferably reaches 50% or less, more preferably 20% or less. is there.
[0029]
If the curing shrinkage time of the thermosetting elastic adhesive is too long, it will take a long time for pressing and there will be a difference in shrinkage between the metal foil and the adhesive during post-curing under no pressure. It tends to cause warping and warping. Further, if the curing shrinkage time of the thermosetting elastic adhesive is too short, poor bonding between the metal foil and the substrate is likely to occur. The thermosetting elastic adhesive described above includes one or a mixture of two or more α-β unsaturated polymers such as acrylic, epoxy, urethane, silicon, fluorine, olefin, and vinyl. And a copolymer.
[0030]
The method for joining the metal foil and the substrate is any method that is commonly used as long as the two are pasted together through a thermosetting elastic adhesive containing 1 to 90% by volume of a spherical dispersible filler. Although but applicable, from the viewpoint of Meri inclusive adjustment and continuous production of the base material of the thermosetting elastic adhesive, after applying the thermosetting elastic adhesive to the metal foil, stacked substrate coated surface It is preferable that they are bonded and pressed, and then cut.
[0031]
Next, the manufacturing method of the metal foil composite member which is embodiment of the 2nd aspect of this invention is demonstrated. In this manufacturing method, when a metal foil is bonded to the surface of a plate-like substrate via a solvent-free or non-organic solvent-type thermosetting elastic adhesive, the metal foil is heated, and then the substrate and the metal foil And are pressed together.
[0032]
As a result of conducting various improvement studies on the method of laminating and pressing a metal foil and a base material via a thermosetting elastic adhesive, the present inventors heated the metal foil using far infrared rays or the like. Thereafter, it was found that when the metal foil and the base material were bonded together and pressed, the smoothness of the metal foil side surface of the composite member was improved. This is because when the metal foil is heated before bonding the metal foil and the substrate through the thermosetting elastic adhesive, the curing rate of the adhesive is increased, and the adhesive is partially cross-linked during the bonding and pressing. Since the state has reached the state, the unevenness of curing shrinkage of the adhesive is alleviated and the curing of the adhesive proceeds from the metal foil side, so that the surface smoothness of the composite member on the metal foil side is improved. Conceivable.
[0033]
In addition, when the metal foil is heated before being bonded to the base material via the thermosetting elastic adhesive, the metal foil is thermally expanded by heating, so that the metal foil is attached to the room temperature base material. When pressed together, the substrate does not heat shrink during subsequent cooling to room temperature, and the metal foil heat shrinks. As a result, the metal foil becomes in a tensioned state, and thereby the surface of the composite member on the metal foil side. It is thought that smoothness is improved. The heating of the metal foil is preferably after the thermosetting elastic adhesive is applied to the surface of the metal foil. Here, when the metal foil is heated after the thermosetting elastic adhesive is applied to the surface of the metal foil, the metal foil adhesive is applied in order to advance the curing of the adhesive from the metal foil side. It is necessary to heat from the side that is not.
[0034]
Here, the heating temperature of the metal foil can be appropriately determined depending on the type of the thermosetting elastic adhesive, the type of the metal foil, and the thickness, but it is 20 ° C. or more, preferably 50 ° C. or more higher than room temperature. If heated, the above effects begin to appear. In addition, if the heating temperature is too high, the thermosetting elastic adhesive is thermally melted or the curing speed is too high, resulting in adhesion failure. Therefore, the temperature is 250 ° C. or less, preferably 200 ° C. or less.
[0035]
Furthermore, although the pressure at the time of a press is not specifically limited, it confirmed that the composite member which has a favorable surface property was obtained by the press for about 1-2 minutes under the pressure of 1-30 kgf / cm < 2 >. As a pressing method, there are a roll press, a belt press, and the like, but a belt press that is uniformly pressed in a flat shape is preferable.
FIG. 1 shows an example of a manufacturing apparatus suitable for a method for manufacturing a metal foil composite member according to an embodiment of the second aspect of the present invention.
[0036]
In the figure, reference numeral 2 denotes a metal foil unwinding device, and a thermosetting elastic adhesive is applied to one side of the metal foil 1 unwound from the metal foil unwinding device 2 by an adhesive coating device 3. . In addition, the arrow A in the figure indicates the conveyance direction of the metal foil 1.
A heating device 4 is installed on the downstream side of the adhesive coating device 3, and the metal foil 1 coated with the thermosetting elastic adhesive is heated by the heating device 4. The metal foil 1 coming out of the heating device 4 is introduced into the belt press device 5.
[0037]
The belt press device 5 includes a pair of upper and lower steel belts 6, and a plate-like base material 8 introduced in the direction of arrow B in the figure by the steel belt 6 by the metal foil 1 and a base material carry-in device (not shown). As a result, the metal foil 1 and the base material 8 are bonded together.
The upper and lower steel belts 6 are circulated and driven with a tension applied by a pair of nip rolls 7, and a press pressure is applied to the position where the metal foil 1 and the substrate 8 are sandwiched. Press pressure load rolls 9 for applying are arranged. After the metal foil 1 and the base material 8 are joined by the belt press device 5 via the thermosetting elastic adhesive, a predetermined length is obtained by the cutting machine 10 disposed on the downstream side of the belt press device 5. Disconnected.
[0038]
【Example】
A stainless steel (SUS304) foil was joined to the surface of the plate-like base material via an adhesive using the production apparatus shown in FIG. 1 to produce a metal foil composite member. Tables 1 and 2 show the type of adhesive, the filler contained in the adhesive, the thickness of the metal foil, the type of base material, the coating thickness of the adhesive, the heating conditions before pressing, the belt pressing conditions, etc. And in Table 3. Tables 1 and 2 (Nos. 1 to 47) are examples corresponding to the production method of the first aspect of the present invention, so that heating by the heating device 4 is not performed, and Table 3 is the first of the present invention. As an example corresponding to the production method of aspect 2, the spherical dispersible filler is not added. No. in Table 3 Nos. 48, 51, 54, 56, 57 and 62 to 70 are heating the surface opposite to the adhesive-coated surface of the metal foil as heating conditions before pressing. 71 and 72 heated the adhesive coating surface of metal foil as a heating condition before a press. Moreover, the adhesives 1-5 and the fillers 1-7 in Tables 1 to 3 are as follows.
Adhesive 1
Type: Thermosetting elastic adhesive Substance name: Acrylic urethane water-based emulsion type adhesive Product name: EM802, manufactured by Cemedine Co., Ltd. Elastic non-organic solvent type non-volatile content: 50 wt% Residual water (VOC 1% or less)
50% modulus: 15 kgf / cm 2
Adhesive 2
Type: Thermosetting elastic adhesive Substance name: Silicone-modified epoxy adhesive Product name: PM210, manufactured by Cemedine Co., Ltd. Elastic solvent-free non-volatile content: 99 wt% or more (VOC 1% or less)
50% modulus: 25 kgf / cm 2
Adhesive 3
Type: Thermosetting elastic adhesive Substance name: Urethane-based hot melt adhesive Product name: Bondmaster 170-7310, manufactured by Nippon SC Co., Ltd. Elastic solvent-free non-volatile content: 99 wt% or more (VOC 1% or less)
50% modulus: 15 kgf / cm 2
Adhesive 4 (Comparative example)
Type: Thermosetting inelastic adhesive Substance name: Epoxy adhesive Product name: EP007, manufactured by Cemedine Co., Ltd. Nonelastic non-solvent non-volatile content: 99 wt% or more (VOC 1% or less)
50% modulus: adhesive 5 with no elongation measurement within 10% elongation (comparative example)
Type: Thermoplastic adhesive Substance name: Olefin-modified ethylene-vinyl acetate aqueous emulsion type adhesive Product name: EM-456, manufactured by Cemedine Co., Ltd. Non-elastic organic solvent type non-volatile content: 50 wt% Residual water (VOC 1% or less)
50% modulus: 7 kgf / cm 2
Filler 1
Material name: Silica-based hollow spherical particles Product name: Cellstar PZ6000 Tokai Kogyo Co., Ltd. average particle size: 40 μm
Filler 2
Material name: Vinylidene chloride resin-based hollow spherical particles Product name: Matsumoto Microsphere F-85 Matsumoto Yushi Seiyaku Co., Ltd. average particle size: 25 μm
Filler 3
Material name: Acrylic resin-based sphere Product name: MR-60G Average particle size: 60 μm, manufactured by Soken Chemical Co., Ltd.
Filler 4
Material name: Acrylic resin spherical body Product name: MR-20G Average particle size: 20 μm, manufactured by Soken Chemical Co., Ltd.
Filler 5
Material name: Acrylic resin spherical particles Product name: MR-13GH Average particle size: 11 μm, manufactured by Soken Chemical Co., Ltd.
Filler 6
Material name: Acrylic resin-based spherical particles Product name: MR-7G Average particle size: 6 μm, manufactured by Soken Chemical Co., Ltd.
Filler 7 (comparative example)
Substance name: Talc fine powder Product name: Crown Talc DR Matsumura Sangyo Co., Ltd. average particle size: 22 μm
Shape: Metal foil composite member No. obtained by each irregular manufacturing method When the amount of volatile organic compounds released was investigated for Nos. 1 to 72, they were not detected or were volatile organic substances such as formaldehyde contained in the substrate, and no odor was observed.
[0039]
In addition, Table 1, Table 2, and Table 3 show the results of investigations on the surface properties on the metal foil side of the metal foil composite member, the adhesive strength between the metal foil and the substrate, and the presence or absence of warpage.
Here, regarding the surface properties, the surface quality was evaluated by visual clarity and visual observation when the width of the optical comb was 1 mm, in accordance with J1SH8686 “Method for testing the image clarity of anodized film of aluminum and aluminum alloy”. The evaluation criteria for surface properties are
A: Map definition is 75% or more, and no cocoon skin is observed.
[0040]
○: In the range of 75 to 70% of map clarity, no cocoon skin or the like is observed.
X: Map definition is less than 70% or cocoon skin is generated.
It was.
As for the presence or absence of warpage, it was determined that a warp of 5 mm / m or less was not warped, and a warp of more than 5 mm / m was judged to be warped.
[0041]
The adhesive strength was evaluated by performing a 180 degree peeling test in accordance with J1SK6854 “Testing method for peeling adhesive strength of adhesive”. Evaluation criteria are
A: 2 kgf / 25 mm or more O: More than 1 kgf / 25 mm, less than 2 kgf / 25 mm Δ: 1 kgf / 25 mm or less
(Conforms to J1SK6854, but 20mm width is 25mm width.)
[0042]
[Table 1]
Figure 0004229250
[0043]
[Table 2]
Figure 0004229250
[0044]
First, as is apparent from Tables 1 and 2, No. 1 containing no dispersible filler as a comparative example was added. 1, no. 38-43, No. which added the fine powder as a filler which is a comparative example. 8-10, No. using a thermoplastic adhesive as a comparative example. No. 23 to 25, No. using a non-elastic solventless thermosetting adhesive as a comparative example. Although each of the metal foil composite members 32 to 37 satisfied the adhesive strength, the surface properties were poor and warpage was observed.
[0045]
On the other hand, each metal foil composite member No. obtained by the manufacturing method of the 1st aspect of this invention is used. 2-7, no. 11-22, no. 26-31, no. Nos. 44 to 47 have a map clarity of 70% or more with respect to surface properties, no aubergine skin is observed, warpage is also 5 mm / m or less, and adhesive strength is more than 1 kgf / 25 mm. It turns out that the adhesive strength is shown.
[0046]
[Table 3]
Figure 0004229250
[0047]
Further, as apparent from Table 3, No. which is a comparative example in which heating before pressing is not performed. No. 49, 50, 52, 53, 55, 58 to 61, No. using a non-elastic solventless thermosetting adhesive as a comparative example. 56, No. using a thermoplastic adhesive as a comparative example. Each of the metal foil composite members No. 57 was satisfactory in adhesive strength but had poor surface properties and warpage was observed. Moreover, No. which performed the heating before press of the metal foil which is a comparative example from the adhesive coating surface side. 71 and 72 were insufficient in both surface property and warpage.
[0048]
On the other hand, each metal foil composite member No. obtained by the manufacturing method of the 2nd aspect of this invention is used. 48, 51, 54, 62 to 70 all have a mapping definition of 75% or more with respect to the surface property and no aubergine skin is observed, the warpage is 5 mm / m or less, and the adhesive strength. It can also be seen that the adhesive strength is 2 kgf / 25 mm or more.
[0049]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to provide a high-quality metal foil composite member that can prevent health contamination, as well as good definition and no warpage. The effect of being able to be obtained.
[Brief description of the drawings]
FIG. 1 is an overall schematic view of a production apparatus suitable for a method for producing a metal foil composite member according to an embodiment of a second aspect of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Metal foil 2 ... Metal foil unwinding device 3 ... Adhesive coating device 4 ... Heating device 5 ... Belt press device 6 ... Steel belt 7 ... Nip roll 8 ... Base material 9 ... Press pressure load roll 10 ... Cutting machine

Claims (3)

板状の基材と、該基材の表面に接着剤を介して接合された金属箔とを備えた金属箔複合部材において、
前記接着剤、無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤であり、該接着剤の硬化後の50%モジュラスが15kgf/cm 〜25kgf/cm であり、写像鮮明度光学くしの幅1mmのとき70%以上であり、単位長さあたりの反り量が5mm/m以下であることを特徴とする金属箔複合部材。
In a metal foil composite member comprising a plate-like substrate and a metal foil joined to the surface of the substrate via an adhesive,
The adhesive is a solvent-free type or a non-organic solvent-thermosetting elastic adhesive, 50% modulus after curing of the adhesive is 15kgf / cm 2 ~25kgf / cm 2 , image clarity is A metal foil composite member characterized by being 70% or more when the width of the optical comb is 1 mm and a warpage amount per unit length of 5 mm / m or less.
前記接着剤には、平均粒子径が20μm〜60μmの球状の分散性充填剤が、20〜70体積%含まれることを特徴とする請求項1に記載の金属箔複合部材。2. The metal foil composite member according to claim 1, wherein the adhesive contains 20 to 70% by volume of a spherical dispersible filler having an average particle diameter of 20 μm to 60 μm. 板状の基材の表面に接着剤を介して金属箔を接合する金属箔複合部材の製造方法において、
前記接着剤、無溶剤型又は非有機溶剤型の熱硬化性弾性接着剤であり、該接着剤の硬化後の50%モジュラスが15kgf/cm 〜25kgf/cm であり、該熱硬化性弾性接着剤を前記金属箔に塗工した後に該金属箔を前記接着剤を塗工していない面側から加熱し、しかる後に前記基材と前記金属箔とをはり合わせてプレスすることにより、写像鮮明度が光学くしの幅1mmのとき70%以上であることを特徴とする金属箔複合部材の製造方法。
In the method for producing a metal foil composite member in which a metal foil is bonded to the surface of a plate-like substrate via an adhesive,
The adhesive is a solvent-free or non-organic solvent-type thermosetting elastic adhesive , and 50% modulus after curing of the adhesive is 15 kgf / cm 2 to 25 kgf / cm 2 , and the thermosetting After applying an elastic adhesive to the metal foil, heating the metal foil from the surface side where the adhesive is not applied, and then pressing the base material and the metal foil together to press , A method for producing a metal foil composite member, wherein the image clarity is 70% or more when the width of the optical comb is 1 mm .
JP11682899A 1999-04-23 1999-04-23 Metal foil composite member and manufacturing method thereof Expired - Lifetime JP4229250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11682899A JP4229250B2 (en) 1999-04-23 1999-04-23 Metal foil composite member and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11682899A JP4229250B2 (en) 1999-04-23 1999-04-23 Metal foil composite member and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JP2000301654A JP2000301654A (en) 2000-10-31
JP4229250B2 true JP4229250B2 (en) 2009-02-25

Family

ID=14696641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11682899A Expired - Lifetime JP4229250B2 (en) 1999-04-23 1999-04-23 Metal foil composite member and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JP4229250B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006095937A (en) * 2004-09-30 2006-04-13 Sanwa Screen Meiban:Kk Film insert molded article by polyethylene terephthalate (pet) resin and its molding method
JP5766929B2 (en) * 2009-10-13 2015-08-19 吉野石膏株式会社 Double floor structure
JP2011253165A (en) * 2010-06-04 2011-12-15 Maruo Calcium Co Ltd Combined reflective element for road surface marking and road surface marking material containing the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552006A (en) * 1978-06-19 1980-01-09 Toyoharu Mizuta Aluminium compound plate
JPS571642U (en) * 1980-06-04 1982-01-06
JPS5861874A (en) * 1981-10-08 1983-04-13 Sumitomo Heavy Ind Ltd Controlling method for coating of solventless type laminator
JPS6173782A (en) * 1984-09-19 1986-04-15 Chiyoda Kenzai Kogyo Kk Bonding of plate material for building
JPH0623354B2 (en) * 1986-01-06 1994-03-30 住友スリ−エム株式会社 Adhesive for fixing carpet
JPH0759692B2 (en) * 1987-08-21 1995-06-28 大鹿振興株式会社 Adhesive for veneer makeup processing
JPH02252531A (en) * 1989-03-27 1990-10-11 Okazaki Kikai Kogyo Kk Dry laminator
JPH0559336A (en) * 1991-06-28 1993-03-09 Sekisui Chem Co Ltd Adhesive composition for woody flooring
JP3007877U (en) * 1994-08-15 1995-02-28 信越ポリマー株式会社 Mirror member
JP3427277B2 (en) * 1995-03-09 2003-07-14 コニシ株式会社 One-component elastic moisture-curable liquid polyurethane adhesive
JPH09216309A (en) * 1996-02-13 1997-08-19 Miyazaki Mokuzai Kogyo Kk Manufacture of heat resistant decorative laminated sheet

Also Published As

Publication number Publication date
JP2000301654A (en) 2000-10-31

Similar Documents

Publication Publication Date Title
DE60126884T2 (en) Peelable top laminate and method of peeling the top layer from the laminate
JP3902961B2 (en) Decorative surface of architectural panel
RU2664909C2 (en) Decorative sheet with mirror surface and decorative plate with mirror surface with its application
JP7052731B2 (en) Laminated stretch film, base material for decorative sheet, decorative sheet and decorative board
ES2725702T3 (en) Procedure and device for gluing two sheet-shaped substrates
TW200528269A (en) Decorative protective film
US20200378133A1 (en) Flooring panel equipped with quick-release adhesive sheet
JP5391593B2 (en) Incombustible decorative board
EP1174263B1 (en) Polyolefin resin composite laminate
JP4229250B2 (en) Metal foil composite member and manufacturing method thereof
JP3954665B2 (en) Method for producing decorative board using precoated paper
JP7173193B2 (en) Article manufacturing method and stacking device
JP2009160907A (en) Incombustible decorative laminate
JP7405166B2 (en) Laminates and articles
JP7310226B2 (en) Manufacturing method of incombustible sheet
TW202132089A (en) Method of manufacturing laminate, method of manufacturing coated object, method of manufacturing junction structure, heat transfer sheet, and laminate
JP7087273B2 (en) How to manufacture adhesive sheet sets and articles
JP2002129108A (en) Recycling primer composition, and its repeeling method
JP2002086657A (en) Decorative sheet and decorative material
EP1108753A2 (en) Thermoplastic embossing materials and methods
JP2018177960A (en) Adhesive set
JP6521144B2 (en) Method of manufacturing noncombustible decorative board
JP5859222B2 (en) Production method of wooden flooring
JP7439388B2 (en) noncombustible sheet
JP4507902B2 (en) Manufacturing method for decorative product

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20051025

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20051025

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20051025

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051227

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080613

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080624

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080822

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20081111

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20081126

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111212

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121212

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131212

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term