JP2006297681A - Transparent material and its manufacturing method - Google Patents

Transparent material and its manufacturing method Download PDF

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JP2006297681A
JP2006297681A JP2005120434A JP2005120434A JP2006297681A JP 2006297681 A JP2006297681 A JP 2006297681A JP 2005120434 A JP2005120434 A JP 2005120434A JP 2005120434 A JP2005120434 A JP 2005120434A JP 2006297681 A JP2006297681 A JP 2006297681A
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film
base material
transparent
aluminum
transparent material
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Toshio Aikawa
登志夫 相川
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Japan Vilene Co Ltd
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Japan Vilene Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a transparent material having transparency composed of a base material and the film formed on its surface and suitably used as a material requiring anti-fogging properties, a packaging material capable of confirming its inside, the window material of a container, a material for a mirror, a film having good adhesiveness, a display panel, a printing material, a drip-proof material, etc. by employing a hydrophilic transparent film as the film formed on the surface of the base material, and its manufacturing method. <P>SOLUTION: The transparent material having transparency is composed of the base material and the film formed on the surface of the base material, wherein the film is made by vapor-depositing aluminum on the base material and applying hydrothermal modification treatment to it. The manufacturing method of the transparent material comprises the steps of vapor-depositing aluminum on the base material and applying hydrothermal modification treatment to it using pure water or distilled water of 60°C or above. By this manufacturing method, no load is applied to handling or wastewater treatment when the transparent material is manufactured and a complicated process is not necessary. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、基材とその表面に形成された膜とからなる透明性を有する材料に関し、特に前記膜はアルミニウムが熱水変性処理されてなる親水性を有する膜であり、防曇性が必要とされる材料、内部を確認できる包装材料、容器の窓材、ミラー用材料、接着性の良いフィルム、表示板、印刷材料、防滴性の材料などに好適な透明性材料及びその製造方法に関する。   The present invention relates to a transparent material composed of a substrate and a film formed on the surface thereof, and in particular, the film is a hydrophilic film formed by subjecting aluminum to hydrothermal modification, and needs to be antifogging. The present invention relates to a transparent material suitable for a material to be used, a packaging material for confirming the inside, a window material for a container, a mirror material, a film having good adhesiveness, a display board, a printing material, a drip-proof material and the like, and a method for producing the same .

従来より、車輌用、船舶用、航空機用あるいは建築用等のウインドウガラスなどに、防曇機能を付与するため、その表面に親水膜を形成することが提案されている。例えば、特許文献1には、基体上に、アルミニウムアルコキシドと安定化剤からなる塗布液を塗布し、乾燥、焼成をしてアモルフアスアルミナ膜を成膜し、次いで該アモルフアスアルミナ膜に熱水処理をし、乾燥、焼成して花弁状透明アルミナ膜を形成した後、その上に、R SiX4-a-b-c〔R,R,R:脂肪族炭化水素基および/あるいは芳香族炭化水素基。a,b,c:0〜3。a+b+c:0〜3。 X:水酸基または加水分解性官能基〕を主成分としてなる塗布溶液を塗布し、加熱処理して親水膜を被覆形成する親水性被膜の形成法が記載されている。しかし、この方法によれば、アルミニウムアルコキシドと安定化剤からなる塗布液を塗布する際に有機溶剤を使用しており、実際に製造する場合は、取り扱いや廃水処理などに負担がかかり煩雑な工程になるという問題があった。 Conventionally, it has been proposed to form a hydrophilic film on the surface of a window glass for vehicles, ships, airplanes, buildings, etc. in order to provide an anti-fogging function. For example, in Patent Document 1, a coating liquid composed of an aluminum alkoxide and a stabilizer is applied to a substrate, dried and fired to form an amorphous alumina film, and then hot water is applied to the amorphous alumina film. After processing, drying and baking to form a petal-like transparent alumina film, R 1 a R 2 b R 3 c SiX 4- abc [R 1 , R 2 , R 3 : An aliphatic hydrocarbon group and / or an aromatic hydrocarbon group; a, b, c: 0-3. a + b + c: 0-3. A method for forming a hydrophilic film is described in which a coating solution containing X: hydroxyl group or hydrolyzable functional group] as a main component is applied and heat-treated to form a hydrophilic film. However, according to this method, an organic solvent is used when applying a coating solution composed of aluminum alkoxide and a stabilizer, and in actual production, a burden is involved in handling and wastewater treatment, which is a complicated process. There was a problem of becoming.

特開H09−202651号公報JP H09-202651 A

本発明は、上記の問題を解決し、基材とその表面に形成された膜とからなる透明性を有する材料に関し、この膜に親水性かつ透明性の膜を採用して、防曇性が必要とされる材料、内部を確認できる包装材料、容器の窓材、ミラー用材料、接着性の良いフィルム、表示板、印刷材料、防滴性の材料などに好適な透明性材料及びその製造方法を提供することを課題とする。また、透明性材料を製造する際にも取り扱いや廃水処理に負担がかからず、煩雑な工程を必要としないことを課題とする。   The present invention relates to a transparent material composed of a substrate and a film formed on the surface thereof, which solves the above problems, and adopts a hydrophilic and transparent film for this film, thereby providing antifogging properties. Transparency materials suitable for required materials, packaging materials that can confirm the inside, container window materials, mirror materials, films with good adhesion, display boards, printing materials, drip-proof materials, and methods for producing the same It is an issue to provide. Moreover, when manufacturing a transparent material, it is a subject that handling and a wastewater treatment are not burdened, and do not require a complicated process.

本発明の課題を解決するための手段は、基材とその基材の表面に形成された膜とからなる透明性を有する材料であって、前記膜は前記基材に蒸着されたアルミニウムが熱水変性処理されてなることを特徴とする透明性材料である。また、透明性を有する基材にアルミニウムを蒸着した後、60℃以上の純水または蒸留水によって前記アルミニウムを熱水変性処理することを特徴とする前記透明性材料の製造方法である。   Means for solving the problems of the present invention is a transparent material composed of a base material and a film formed on the surface of the base material, and the film is formed by heating aluminum deposited on the base material. It is a transparent material characterized by being water-denatured. In the method for producing a transparent material, the aluminum is subjected to hydrothermal denaturation treatment with pure water or distilled water at 60 ° C. or higher after aluminum is deposited on a transparent substrate.

なお、本発明において、透明性を有するとは、対象とする基材、または膜が前記基材の表面に形成されてなる膜被覆物などの試験体を目の30cm先に固定して、さらにその20cm先に白紙に縦3mmのゴシック体で1〜9までの数字が各5個ずつ縦5列横9行合計45個となるようにランダムに書かれた読み取り板紙を固定して、これら45個の数字が試験体を通して読み取れるか否かで判定し、全ての数字を正確に読み取れる場合を「透明性を有する」ものと評価し、それ以外の場合を「透明性を有しない」ものと評価する。また、評価に際して、読み取る人の視力は乱視などを含まない正常な状態において1.0以上であることを必要とする。   In the present invention, having transparency means fixing a test body such as a target base material or a film covering formed by forming a film on the surface of the base material 30 cm ahead of the eye, and At the end of 20 cm, a reading board that is randomly written so that the number from 1 to 9 in a Gothic body with a length of 3 mm is 5 in each of 5 rows and 9 rows in total is 45. Judgment is made based on whether or not each number can be read through the specimen, and if all numbers can be read accurately, it is evaluated as `` transparent '', otherwise it is evaluated as `` not transparent '' To do. Further, in the evaluation, the eyesight of the reading person needs to be 1.0 or more in a normal state that does not include astigmatism.

本発明によって、基材とその表面に形成された膜とからなる透明性を有する材料に関し、特にその膜としてアルミニウムが熱水変性処理されてなる親水性かつ透明性を有する膜を採用することにより、防曇性が必要とされる材料、内部を確認できる包装材料、容器の窓材、ミラー用材料、接着性の良いフィルム、表示板、印刷材料、防滴性の材料などに好適な透明性材料及びその製造方法を提供することが可能となった。また、透明性材料を製造する際にも取り扱いや廃水処理に負担がかからず、煩雑な工程を必要としない効果を有する。   According to the present invention, the present invention relates to a transparent material comprising a substrate and a film formed on the surface thereof, and in particular, by adopting a hydrophilic and transparent film obtained by hydrothermally denaturing aluminum as the film. Transparency suitable for materials that require anti-fogging properties, packaging materials that can be confirmed inside, container window materials, mirror materials, films with good adhesion, display boards, printing materials, drip-proof materials, etc. It has become possible to provide materials and methods for manufacturing the same. Moreover, when manufacturing a transparent material, there is no burden on handling and wastewater treatment, and there is an effect that a complicated process is not required.

本発明の透明性材料は、基材とその基材の表面に形成された膜とからなるが、基材の材質としては、必ずしも耐熱性や耐火性を有していない基材であっても透明性を有する限り適用可能であり、無機質基材、合成樹脂基材など各種のものがあげられる。合成樹脂基材としては、例えばポリエチレンテレフタレート、ポリプロピレン、ポリスチレン、ポリカーボネート、ポリメチルメタクリレート、ABS樹脂、ポリフェニレンオキサイド、ポリウレタン、ポリエチレン、ポリ塩化ビニルなどの熱可塑性樹脂のフィルムや成形品、または不飽和ポリエステル樹脂、フェノール樹脂、架橋型ポリウレタン、架橋型のアクリル樹脂、架橋型の飽和ポリエステル樹脂など各種の熱硬化性樹脂から得られる架橋フィルムや架橋した成形品などがあげられる。   The transparent material of the present invention is composed of a base material and a film formed on the surface of the base material, but the base material is not necessarily heat-resistant or fire-resistant base material. It can be applied as long as it has transparency, and includes various materials such as inorganic substrates and synthetic resin substrates. Examples of synthetic resin base materials include polyethylene terephthalate, polypropylene, polystyrene, polycarbonate, polymethyl methacrylate, ABS resin, polyphenylene oxide, polyurethane, polyethylene, polyvinyl chloride, and other thermoplastic resin films and molded articles, or unsaturated polyester resins. Cross-linked films obtained from various thermosetting resins such as phenol resins, cross-linked polyurethanes, cross-linked acrylic resins, cross-linked saturated polyester resins, and cross-linked molded articles.

また、無機質基材としては、例えばセメント系、ガラス系、セラミックス系などの無機質の材料があげられる。これらの無機質基材の中でも、例えばガラス板やガラス成形品などの透明性に優れた基材が好ましい。   Examples of the inorganic base material include inorganic materials such as cement-based, glass-based, and ceramic-based materials. Among these inorganic substrates, substrates having excellent transparency such as glass plates and glass molded products are preferable.

前記基材の形態は、透明性を有する限り特に限定されないが、例えばこの基材が透明性を有する樹脂フィルムなどであることにより、この基材とその表面に形成された透明性を有する膜とが一体化することによって、一体化した材料全体が透明性を有することとなる。そしてこのような膜が被覆したフィルムは、例えば包装材によって包装された包装体に使用したり、あるいは包装容器の窓材などに使用することによって、包装体内部あるいは包装容器内部の状態を内部から発生する水蒸気によって曇ることなく確認が可能であるという利点がある。このように、前記基材が透明性を有する樹脂フィルムなどの透明性を有する基材であることにより優れた防曇性の材料となる。また接触角が小さく、例えば10°以下であることにより、防滴性にも優れた材料となる。   The form of the base material is not particularly limited as long as it has transparency. For example, when the base material is a resin film having transparency, the base material and a transparent film formed on the surface thereof are used. As a result of integration, the entire integrated material has transparency. A film coated with such a film can be used, for example, for a package packaged with a packaging material, or used for a window material of a packaging container, etc. There is an advantage that confirmation is possible without being clouded by the generated water vapor. Thus, when the base material is a transparent base material such as a transparent resin film, an excellent antifogging material is obtained. Further, when the contact angle is small, for example, 10 ° or less, the material has excellent drip-proof properties.

本発明では、前記膜は前記基材に蒸着されたアルミニウムが熱水変性処理されることによって形成されている。基材にアルミニウムを蒸着する方法としては、特に限定されず基材の表面に真空蒸着やスパッタリングなどの方法でアルミニウムを蒸着することが可能である。   In the present invention, the film is formed by subjecting aluminum deposited on the base material to a hot water denaturation treatment. The method for depositing aluminum on the substrate is not particularly limited, and aluminum can be deposited on the surface of the substrate by a method such as vacuum deposition or sputtering.

また、アルミニウムの蒸着により形成される蒸着膜の厚さは、1〜0.001μmであることが好ましく、0.5〜0.005μmであることがより好ましく、0.1〜0.005μmであることが更に好ましい。蒸着膜の厚さが1μmを超えると、熱水変性処理の温度を高くしたり、処理時間を長くしても、十分な透明性が得られない場合がある。また0.001μm未満であると、十分な親水性が得られない場合がある。   Moreover, the thickness of the vapor deposition film formed by vapor deposition of aluminum is preferably 1 to 0.001 μm, more preferably 0.5 to 0.005 μm, and 0.1 to 0.005 μm. More preferably. If the thickness of the deposited film exceeds 1 μm, sufficient transparency may not be obtained even if the temperature of the hot water denaturation treatment is increased or the treatment time is increased. If it is less than 0.001 μm, sufficient hydrophilicity may not be obtained.

基材にアルミニウムが蒸着されている形態としては、基材の表面に蒸着されている限り、特に限定されることはなく、例えば基材の表面全体に蒸着されているのみならず、例えば基材の任意に決められた位置に蒸着されていることも何れも可能である。   The form in which aluminum is vapor-deposited on the substrate is not particularly limited as long as it is vapor-deposited on the surface of the substrate. For example, it is not only vapor-deposited on the entire surface of the substrate. It is possible to deposit the film at an arbitrarily determined position.

また、アルミニウムを蒸着させた後の熱水変成処理について説明すると、処理に使用する水としては、水道水、純水、イオン交換水、逆浸透膜水、蒸留水、またはイオン交換後に蒸留した蒸留水などの液体状の水、或いはこれらの水を使った気体状の水蒸気など、いずれも使用可能であるが、特に、純水または蒸留水が好ましく、純水または蒸留水を用いることにより、全く透明な膜を得ることができる。また、電気伝導度10μS/cm以下の水を用いることが好ましく、電気伝導度1.0μS/cm以下の水を用いることがより好ましく、電気伝導度0.5μS/cm以下の水を用いることがさらに好ましい。電気伝導度が10μS/cmを超えると、蒸着したアルミニウムが十分に熱水処理されずに、アルミニウムの銀色がそのまま残り、不透明となったり、まばらに熱水処理されるなどの問題が生じる場合がある。   In addition, the hydrothermal modification treatment after depositing aluminum will be described. Water used for the treatment is tap water, pure water, ion exchange water, reverse osmosis membrane water, distilled water, or distilled distilled after ion exchange. Liquid water such as water, or gaseous water vapor using these waters can be used. However, pure water or distilled water is particularly preferable. By using pure water or distilled water, A transparent film can be obtained. Further, water having an electric conductivity of 10 μS / cm or less is preferably used, water having an electric conductivity of 1.0 μS / cm or less is more preferably used, and water having an electric conductivity of 0.5 μS / cm or less is used. Further preferred. If the electrical conductivity exceeds 10 μS / cm, the deposited aluminum is not sufficiently hydrothermally treated, and the silver color of the aluminum remains as it is, which may cause problems such as being opaque or sparsely hydrothermally treating. is there.

また、前記熱水変成処理に使用する水の温度としては、水和酸化物としてベーマイトが形成される条件が好ましく、常圧下では60〜100℃が好ましく、80〜100℃がより好ましく、90〜100℃の範囲であることが更に好ましい。このようにして、基材の面に蒸着したアルミニウムが熱水変性処理されて透明性の膜が形成されることなり、その膜の表面を電子顕微鏡写真によって確認すると、基材の表面全体に微細な凹凸組織を有する膜が形成されていることが分かる。水の温度が60℃未満であると、蒸着したアルミニウムが十分に熱水処理されずに、アルミニウムの銀色がそのまま残り、不透明となったり、まばらに熱水処理されるなどの問題が生じる場合がある。   Moreover, as the temperature of the water used for the said hydrothermal modification process, the conditions in which boehmite is formed as a hydrated oxide are preferable, 60-100 degreeC is preferable under a normal pressure, 80-100 degreeC is more preferable, 90- More preferably, it is in the range of 100 ° C. In this way, the aluminum deposited on the surface of the base material is hydrothermally modified to form a transparent film. When the surface of the film is confirmed by an electron micrograph, It can be seen that a film having a rough texture is formed. If the temperature of the water is less than 60 ° C., the deposited aluminum is not sufficiently hydrothermally treated, and the silver color of the aluminum remains as it is, which may cause problems such as being opaque or sparsely hydrothermally treating. is there.

前記熱水変成処理の具体的な方法としては、前記基材を前記熱水に接触できる方法であれば特に限定されることはないが、前記基材を熱水に浸漬させる方法が好ましい。また、熱水に接触する時間は1秒以上30分以下が好ましく、2秒以上20分以下がより好ましく、3秒以上10分以下が更に好ましい。1秒未満では熱水変性処理が十分に行われれず、アルミニウムの銀色が残る場合があり、30分を超えると透明性がかえって低下する場合がある。   A specific method for the hydrothermal modification treatment is not particularly limited as long as the substrate can be brought into contact with the hot water, but a method of immersing the substrate in hot water is preferable. The time of contact with hot water is preferably 1 second to 30 minutes, more preferably 2 seconds to 20 minutes, and even more preferably 3 seconds to 10 minutes. If it is less than 1 second, the hot water denaturation treatment is not sufficiently performed, and the silver color of aluminum may remain, and if it exceeds 30 minutes, the transparency may be lowered.

本発明の透明性材料の基材表面に形成された膜は親水性を有しており、親水性の程度は接触角を測定することによって評価することができる。この評価方法によれば、本発明における基材表面の膜の接触角は30°以下が好ましく、20°以下がより好ましく、10°以下が更に好ましい。なお、接触角の測定方法は、次に示す方法による。   The film formed on the substrate surface of the transparent material of the present invention has hydrophilicity, and the degree of hydrophilicity can be evaluated by measuring the contact angle. According to this evaluation method, the contact angle of the film on the substrate surface in the present invention is preferably 30 ° or less, more preferably 20 ° or less, and still more preferably 10 ° or less. The contact angle is measured by the following method.

(接触角の測定方法)
基材の表面に形成された膜を有する膜被覆基材を、膜側を表面として平坦な表面を有するサンプル支持具の平面上に載置して、膜被覆基材の両端を粘着テープで止める。次いで、この膜被覆基材の平面の純水との接触角を協和界面科学株式会社製の接触角計CA−SミクロII型を用いて測定する。また、純水を滴下してから3分間経過後に接触角の測定を行う。
(Measurement method of contact angle)
A film-coated substrate having a film formed on the surface of the substrate is placed on the surface of a sample support having a flat surface with the film side as the surface, and both ends of the film-coated substrate are fixed with an adhesive tape. . Subsequently, the contact angle with the plane pure water of this film | membrane coating base material is measured using the Kyowa Interface Science Co., Ltd. contact angle meter CA-S micro type II. The contact angle is measured after 3 minutes have passed since the pure water was dropped.

また、透明性材料の基材表面に形成された膜の親水性の程度は、下記に示す防曇性評価方法や防滴性評価方法によっても評価することができる。   Further, the degree of hydrophilicity of the film formed on the substrate surface of the transparent material can also be evaluated by the antifogging evaluation method and the dripproofness evaluation method described below.

(防曇性評価方法)
200mlのビーカーに水150mlを入れて沸騰させる。次に、この沸騰した水の入っているビーカーの上方約5cmの位置に、約10秒間試験体をかざして、曇りが発生するか否かを目視にて確認する。この目視により、曇りが無いか、あるいは曇りが生じても1秒以内に消える場合は、防曇性があると判定する。
(Anti-fogging evaluation method)
Put 150 ml of water in a 200 ml beaker and boil. Next, the specimen is held over a position about 5 cm above the beaker containing the boiled water for about 10 seconds, and it is visually confirmed whether or not clouding occurs. It is determined that there is anti-fogging property when there is no clouding or it disappears within 1 second even if clouding occurs.

(防滴性評価方法)
試験体を垂直に保持した後、試験体表面にスプレー装置を用いて蒸留水を均一にまんべんなく吹き付ける。吹き付ける水の量は吹き付けた水が試験体より滴り落ちる程度とする。水が試験体より滴り落ちるのを見届けた後、試験体表面の水滴の有無を目視にて確認する。この目視により、試験体表面に水滴がない場合は、防滴性があると判定する。
(Drip-proof evaluation method)
After holding the specimen vertically, distilled water is sprayed uniformly and evenly on the specimen surface using a spray device. The amount of water to be sprayed is such that the sprayed water drops from the specimen. After confirming that water has dripped from the specimen, the presence or absence of water droplets on the specimen surface is visually confirmed. By visual inspection, when there are no water droplets on the surface of the test body, it is determined that there is drip-proofness.

以上説明したように、本発明の透明性材料は、基材とその表面に形成された膜とからなる透明性を有する材料に関し、特に蒸着したアルミニウムを熱水変性処理して透明性、かつ親水性を有する膜を形成する技術であり、この膜は防曇性、親水性、印刷特性、接着性、防滴性などに優れる。したがって、これらの特性を利用して、本発明の透明性材料は防曇性が必要とされる材料、内部を確認できる包装材料、容器の窓材、ミラー用材料、接着性の良いフィルム、表示板、印刷材料、防滴性の材料などに好適である。また、透明性材料を製造する際にも取り扱いや廃水処理に負担がかからず、煩雑な工程を必要としない効果を有する。   As described above, the transparent material of the present invention relates to a transparent material comprising a base material and a film formed on the surface thereof, and in particular, the deposited aluminum is transparent and hydrophilic by subjecting the deposited aluminum to a hydrothermal modification treatment. This film is excellent in antifogging properties, hydrophilicity, printing properties, adhesiveness, drip-proof properties, and the like. Therefore, by utilizing these characteristics, the transparent material of the present invention is a material that requires anti-fogging properties, a packaging material that can confirm the inside, a container window material, a mirror material, a film with good adhesion, a display Suitable for plates, printing materials, drip-proof materials and the like. Moreover, when manufacturing a transparent material, there is no burden on handling and wastewater treatment, and there is an effect that a complicated process is not required.

以下、本発明の実施例につき説明するが、これは発明の理解を容易とするための好適例に過ぎず、本願発明はこれら実施例の内容に限定されるものではない。   Examples of the present invention will be described below, but these are only suitable examples for facilitating the understanding of the present invention, and the present invention is not limited to the contents of these examples.

(実施例1)
透明性を有する厚さ25μmのポリエチレンテレフタレートフィルム(以下PETフィルムという)の片面に、スパッタリングにてアルミニウムを蒸着させてアルミニウム蒸着フィルムを得た。この蒸着によって形成された蒸着膜の厚さは約0.025μmであった。次いでこのアルミニウム蒸着フィルムを85℃の純水(電気伝導度1μS/cm以下)に3分間浸漬して、蒸着したアルミニウムを熱水変性処理して、表面に熱水変性処理による膜が形成されたPETフィルムを得た。この熱水変性処理による膜が形成されたPETフィルムの透明性を評価したところ、透明性を有しており、透明性材料が得られたことが確認できた。また、この熱水変性処理による膜を電子顕微鏡で観察すると、表面全体に微細な凹凸組織が形成されていた。また、この熱水変性処理による膜の親水性の程度は接触角が8°であり、防曇性及び防滴性を共に有していた。なお、PETフィルムのアルミニウムの蒸着を行わなかった側の表面の接触角は78°であり、防曇性及び防滴性のどちらも有していなかった。また、上記の純水はミリポア社製の超純水製造装置(Elix10UV MilliQ Gradient A10)で作製した純水を用いた。
Example 1
Aluminum was deposited on one side of a transparent polyethylene terephthalate film (hereinafter referred to as PET film) having a thickness of 25 μm by sputtering to obtain an aluminum deposited film. The thickness of the deposited film formed by this deposition was about 0.025 μm. Next, this aluminum vapor-deposited film was immersed in pure water at 85 ° C. (electric conductivity 1 μS / cm or less) for 3 minutes, and the vapor-deposited aluminum was hydrothermally modified to form a film by hydrothermal denaturation on the surface. A PET film was obtained. When the transparency of the PET film on which a film formed by this hot water modification treatment was evaluated, it was confirmed that the PET film had transparency and a transparent material was obtained. Moreover, when the film | membrane by this hydrothermal modification process was observed with the electron microscope, the fine uneven structure was formed in the whole surface. Further, the degree of hydrophilicity of the film by this hydrothermal modification treatment was 8 ° in contact angle, and both had antifogging properties and dripproof properties. Note that the contact angle of the surface of the PET film on which aluminum was not deposited was 78 °, and neither the antifogging property nor the dripproofing property was obtained. Moreover, the pure water produced with the ultrapure water manufacturing apparatus (Elix10UV MilliQ Gradient A10) by Millipore was used for said pure water.

(実施例2)
PETフィルムの厚さを12μmとし、蒸着膜の厚さを約0.055μmとし、アルミニウム蒸着フィルムを100℃の純水(電気伝導度1μS/cm以下)に浸漬したこと以外は、実施例1と同様にして、表面に熱水変性処理による膜が形成されたPETフィルムを得た。この熱水変性処理による膜が形成されたPETフィルムの透明性を評価したところ、透明性を有しており、透明性材料が得られたことが確認できた。また、この熱水変性処理による膜を電子顕微鏡で観察すると、PETフィルムの表面全体に微細な凹凸組織が形成されていた。また、この熱水変性処理による膜の親水性の程度は接触角が7°であり、防曇性及び防滴性を共に有していた。
(Example 2)
Example 1 except that the thickness of the PET film was 12 μm, the thickness of the deposited film was about 0.055 μm, and the aluminum deposited film was immersed in 100 ° C. pure water (electric conductivity 1 μS / cm or less). Similarly, a PET film having a film formed on the surface by hydrothermal modification was obtained. When the transparency of the PET film on which a film formed by this hot water modification treatment was evaluated, it was confirmed that the PET film had transparency and a transparent material was obtained. Moreover, when the film | membrane by this hydrothermal modification process was observed with the electron microscope, the fine uneven structure was formed in the whole surface of PET film. Further, the degree of hydrophilicity of the film by this hydrothermal modification treatment was such that the contact angle was 7 °, and both the antifogging property and the dripproofing property were possessed.

(実施例3)
PETフィルムの代わりに厚さ3mmのガラス板を用いたこと、及び蒸着膜の厚さを約0.06μmとし、アルミニウム蒸着ガラス板を95℃の純水(電気伝導度1μS/cm以下)に浸漬したこと以外は、実施例1と同様にして、表面に熱水変性処理による膜が形成されたガラス板を得た。この熱水変性処理による膜が形成されたガラス板の透明性を評価したところ、透明性を有しており、透明性材料が得られたことが確認できた。また、この熱水変性処理による膜を電子顕微鏡で観察すると、表面全体に微細な凹凸組織が形成されていた。また、この熱水変性処理による膜の親水性の程度は接触角が6°であり、防曇性及び防滴性を共に有していた。
(Example 3)
A glass plate with a thickness of 3 mm was used instead of the PET film, and the thickness of the deposited film was about 0.06 μm, and the aluminum-deposited glass plate was immersed in 95 ° C. pure water (electric conductivity 1 μS / cm or less). Except for the above, a glass plate having a surface formed with a hot water denaturation treatment was obtained in the same manner as in Example 1. When the transparency of the glass plate on which the film formed by this hot water denaturation treatment was evaluated, it was confirmed that it had transparency and a transparent material was obtained. Moreover, when the film | membrane by this hydrothermal modification process was observed with the electron microscope, the fine uneven structure was formed in the whole surface. Further, the degree of hydrophilicity of the membrane by this hydrothermal modification treatment was 6 ° in contact angle, and both had antifogging properties and drip proof properties.

(比較例1)
実施例2において、アルミニウム蒸着フィルムを55℃の純水(電気伝導度1μS/cm以下)に浸漬したこと以外は実施例2と同様にして、表面に熱水変性処理による膜が形成されたPETフィルムを得た。この熱水変性処理による膜が形成されたPETフィルムの透明性を評価したところ、この膜はアルミニウムによる銀色を呈しており、この熱水変性処理による膜が形成されたPETフィルムは透明性を有していなかった。
(Comparative Example 1)
PET in which a film formed by hydrothermal denaturation treatment was formed on the surface in the same manner as in Example 2 except that the aluminum vapor-deposited film was immersed in pure water at 55 ° C. (electric conductivity 1 μS / cm or less). A film was obtained. When the transparency of the PET film on which the film was formed by this hydrothermal modification treatment was evaluated, this film had a silver color due to aluminum, and the PET film on which the film was formed by this hydrothermal modification treatment had transparency. I did not.

Claims (5)

基材とその基材の表面に形成された膜とからなる透明性を有する材料であって、前記膜は前記基材に蒸着されたアルミニウムが熱水変性処理されてなることを特徴とする透明性材料。   A transparent material comprising a base material and a film formed on the surface of the base material, wherein the film is formed by subjecting aluminum deposited on the base material to hydrothermal modification treatment Sex material. 前記熱水変性処理が60℃以上の純水または蒸留水による処理である請求項1に記載の透明性材料。   The transparent material according to claim 1, wherein the hydrothermal modification treatment is a treatment with pure water or distilled water at 60 ° C. or higher. 透明性を有する樹脂フィルムからなる前記基材の表面に前記膜が形成されてなる請求項1または請求項2に記載の透明性材料。   The transparent material according to claim 1 or 2, wherein the film is formed on a surface of the base material made of a resin film having transparency. 透明性を有するガラス板からなる前記基材の表面に前記膜が形成されてなる請求項1または請求項2に記載の透明性材料。   The transparent material according to claim 1 or 2, wherein the film is formed on a surface of the substrate made of a glass plate having transparency. 透明性を有する基材にアルミニウムを蒸着した後、60℃以上の純水または蒸留水によって前記アルミニウムを熱水変性処理することを特徴とする請求項1に記載の透明性材料
の製造方法。
2. The method for producing a transparent material according to claim 1, wherein after aluminum is vapor-deposited on a transparent substrate, the aluminum is hydrothermally modified with pure water or distilled water at 60 ° C. or higher.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006325082A (en) * 2005-05-20 2006-11-30 Canopus Co Ltd Animation data edit apparatus and method
JP2009017305A (en) * 2007-07-05 2009-01-22 Hoya Corp Method of manufacturing dust-proof light transmissive member, its application and imaging apparatus provided with the member
WO2012127744A1 (en) * 2011-03-18 2012-09-27 富士フイルム株式会社 Optical member and method for producing same
JP2013032263A (en) * 2011-06-30 2013-02-14 Hoya Corp Method for manufacturing cover glass for electronic equipment, and method for manufacturing touch sensor module

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JP2002019015A (en) * 2000-04-26 2002-01-22 Toppan Printing Co Ltd Laminate and packaging material using it
JP2004249656A (en) * 2003-02-21 2004-09-09 Toppan Printing Co Ltd Laminated body and method for manufacturing it

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JP2004249656A (en) * 2003-02-21 2004-09-09 Toppan Printing Co Ltd Laminated body and method for manufacturing it

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JP2006325082A (en) * 2005-05-20 2006-11-30 Canopus Co Ltd Animation data edit apparatus and method
JP2009017305A (en) * 2007-07-05 2009-01-22 Hoya Corp Method of manufacturing dust-proof light transmissive member, its application and imaging apparatus provided with the member
WO2012127744A1 (en) * 2011-03-18 2012-09-27 富士フイルム株式会社 Optical member and method for producing same
US9459379B2 (en) 2011-03-18 2016-10-04 Fujifilm Corporation Optical member and method for producing same
JP2013032263A (en) * 2011-06-30 2013-02-14 Hoya Corp Method for manufacturing cover glass for electronic equipment, and method for manufacturing touch sensor module

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