JP2003001736A - Water repellent highly bright transparent material - Google Patents
Water repellent highly bright transparent materialInfo
- Publication number
- JP2003001736A JP2003001736A JP2001194229A JP2001194229A JP2003001736A JP 2003001736 A JP2003001736 A JP 2003001736A JP 2001194229 A JP2001194229 A JP 2001194229A JP 2001194229 A JP2001194229 A JP 2001194229A JP 2003001736 A JP2003001736 A JP 2003001736A
- Authority
- JP
- Japan
- Prior art keywords
- transparent material
- uneven shape
- water
- brightness
- thin layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、撥水性を有すると
ともに背面からの光の輝度を高める性能を有する透明材
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent material having water repellency and having a property of enhancing the brightness of light from the back surface.
【０００２】[0002]
【従来の技術】一般に、固体表面をフッ素やシリコーン
などを主成分とする低い表面エネルギーの物質で形成す
れば優れた撥水性を持たせることができることが知られ
ており、かつ、その表面に、適切な粗さが付与されるこ
とによって撥水性がより強調されることが知られてい
る。2. Description of the Related Art Generally, it is known that a solid surface can be made to have excellent water repellency if it is made of a substance having a low surface energy such as fluorine or silicone as a main component, and It is known that the water repellency is further enhanced by imparting appropriate roughness.
【０００３】一方、透明材において、背面からの光の輝
度を高めるようにした表面構造が知られている。例え
ば、市販されている３Ｍ社製の輝度上昇フィルム（Brig
htnessEnhanced Film、以下、「ＢＥフィルム」と略称
する。）では、透明なプラスチックフィルムの表面に、
三角山形あるいはＶ溝形の凹凸条を連接した特異的な表
面構造を形成し、背面からの光を集光して正面側での輝
度が向上するようにしている。この輝度上昇フィルムを
例えば液晶ディスプレイパネルの表面に貼れば、液晶表
面での輝度が向上される。On the other hand, a surface structure of a transparent material is known in which the brightness of light from the back surface is increased. For example, a commercially available 3M brightness enhancement film (Brig
htnessEnhanced Film, hereinafter abbreviated as "BE film". ), On the surface of the transparent plastic film,
A peculiar surface structure is formed by connecting concavo-convex stripes of triangular mountain shape or V-groove shape, and the light from the back surface is condensed to improve the brightness on the front side. When this brightness enhancement film is attached to the surface of a liquid crystal display panel, for example, the brightness on the liquid crystal surface is improved.
【０００４】このように、撥水性付与および撥水性向上
のための表面粗さ付与構造と、輝度向上機能を有する透
明材の表面構造とは、それぞれ個々の技術としては知ら
れているが、これらを組み合わせた技術は知られていな
い。As described above, the surface roughness imparting structure for imparting water repellency and improving the water repellency and the surface structure of the transparent material having the brightness enhancing function are known as individual techniques, respectively. There is no known technology that combines the two.
【０００５】ところが、種々の分野においては、高い撥
水性、例えば水との接触角が１００度以上、また１２０
度以上の高い撥水性、さらには１５０度以上の超撥水性
と、輝度向上機能とを、両方とも同時に備えていれば極
めて望ましいと考えられる用途が多数ある。However, in various fields, high water repellency, for example, the contact angle with water is 100 degrees or more, and 120
There are many applications in which it is extremely desirable to have both a high water repellency of not less than 100 degrees, a super water repellency of not less than 150 degrees, and a brightness improving function at the same time.
【０００６】例えば、浴室や洗面所等の水周りの壁材や
照明表面材の用途、噴水やプール等における照明機器、
自動車のヘッドランプ、街灯、ネオンサイン、街頭テレ
ビ、看板、標識、自動販売機等の自発光するものの基材
や表面材、意匠面形成材などには、上記両性能がともに
求められることが多く、両性能があれば、輝度向上機能
により照明や表示性能が高められるとともに、撥水性に
より機器や部材への着滴防止が達成可能となる。[0006] For example, the use of wall materials and lighting surface materials around water in bathrooms and washrooms, lighting equipment in fountains and pools,
Both of the above performances are often required for base materials, surface materials, design surface forming materials, etc. of self-luminous materials such as automobile headlamps, street lights, neon signs, street televisions, signs, signs, and vending machines. With both of the above performances, it is possible to improve the illumination and display performance by the brightness improving function, and prevent water from dripping on the device or member due to the water repellency.
【０００７】また、寒冷地においては、自動車のテール
やヘッドランプ、街灯、ネオンサイン、屋外照明、街頭
テレビ、看板、標識、自動販売機など自発光するものの
基材や表面材、意匠面形成材などに、輝度向上機能に加
え、特に着雪防止性能が備わっていれば望ましいと考え
られる。[0007] In cold regions, base materials, surface materials and design surface forming materials for self-luminous materials such as automobile tails, headlamps, street lights, neon signs, outdoor lighting, street TVs, signs, signs, and vending machines. In addition to the brightness enhancement function, it is considered desirable to have snow-prevention performance.
【０００８】[0008]
【発明が解決しようとする課題】そこで本発明の課題
は、上記のような要望を満たすべく、透明材の表面を、
輝度向上機能と優れた撥水性とを併せ持った構造に形成
した、新規な撥水性高輝度透明材を提供することにあ
る。Therefore, the object of the present invention is to improve the surface of the transparent material to meet the above demands.
It is to provide a novel water-repellent high-brightness transparent material having a structure having both a brightness improving function and excellent water repellency.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するため
に、本発明に係る撥水性高輝度透明材は、透明材の表面
に、背面からの光の輝度を高める第１の凹凸形状が形成
され、該第１の凹凸形状が形成された表面上に、撥水性
を有する低表面エネルギー物質からなる薄層が積層さ
れ、該薄層の表面に、前記第１の凹凸形状よりも小さい
表面粗さの第２の凹凸形状が形成されていることを特徴
とするものからなる。In order to solve the above-mentioned problems, the water-repellent high-brightness transparent material according to the present invention is formed with a first uneven shape on the surface of the transparent material for enhancing the brightness of light from the back surface. Then, a thin layer made of a low surface energy substance having water repellency is laminated on the surface having the first uneven shape, and the surface of the thin layer has a surface roughness smaller than that of the first uneven shape. The second concave and convex shape is formed.
【００１０】透明材としては、上記のような表面形態を
有するものであれば特に限定されず、例えば透明プラス
チックフィルムを用いることができ、透明プラスチック
フィルムとしては、例えば前述の３Ｍ社製のＢＥフィル
ムを使用できる。The transparent material is not particularly limited as long as it has the above-mentioned surface morphology, and for example, a transparent plastic film can be used, and the transparent plastic film is, for example, the BE film manufactured by 3M mentioned above. Can be used.
【００１１】第１の凹凸形状は、例えば、断面形状が三
角山形の凸条またはＶ溝からなる凹条が連接された形状
に形成することができ、凸条の高さあるいは凹条の深さ
としては、１０〜１００μｍ、特に５０μｍ程度に設定
できる。三角山形やＶ溝の側面の角度としては、３０〜
６０度、特に４５度程度に設定できる。The first concavo-convex shape can be formed, for example, in a shape in which a convex stripe having a triangular mountain-shaped cross section or a concave stripe made of a V groove is connected to each other, and the height of the convex stripe or the depth of the concave stripe. Can be set to 10 to 100 μm, particularly about 50 μm. The angle of the triangular chevron or the side surface of the V groove is 30-
It can be set to 60 degrees, especially about 45 degrees.
【００１２】薄層は、自身でも材料的に撥水性を有し、
この薄層を構成する低表面エネルギー物質としては、フ
ッ素系またはシリコーン系の化合物あるいは樹脂若しく
はその誘導体が好ましい。この薄層は、例えばコーティ
ングにより透明材表面に積層される。The thin layer itself has water repellency as a material,
As the low surface energy substance constituting this thin layer, a fluorine-based or silicone-based compound, a resin or a derivative thereof is preferable. This thin layer is laminated to the surface of the transparent material by, for example, coating.
【００１３】第２の凹凸形状は、第１の凹凸形状による
輝度向上機能を実質的に損なうことなく、上記薄層によ
って形成された表面の撥水性をさらに高めるものであ
る。すなわち、上述の第１の凹凸形状は、透明材の表面
における輝度を高めるとともに、表面粗さを付与するこ
とにより撥水性（水との接触角）を高めるが、この第１
の凹凸形状による表面粗さよりも小さい表面粗さの第２
の凹凸形状を形成することにより、いわゆるフラクタル
構造（拡大ごとに実質的に相似形が現れる構造、この場
合には、二重粗さ構造）となり、一段の表面粗さだけで
得られる撥水性に比べ、格段に優れた撥水性が得られる
ようになる。また、この第２の凹凸形状は、第１の凹凸
形状よりも小さい表面粗さ構造とされるため、摩耗が予
測されるような部位では、摩耗による消滅が生じるかも
知れないが、たとえ摩耗によって消滅したとしても、第
１の凹凸形状は残るため、第１の凹凸形状による撥水性
および薄層の材料自身による撥水性は最低限確保される
ことになり、併せて第１の凹凸形状による輝度向上性能
も確保されることになる。したがって、たとえこのよう
な部位に適用されたとしても、結果的に、耐久性に優れ
た表面構造となる。The second irregular shape further enhances the water repellency of the surface formed by the thin layer without substantially impairing the brightness improving function of the first irregular shape. That is, the above-described first uneven shape enhances the brightness on the surface of the transparent material and enhances the water repellency (contact angle with water) by imparting surface roughness.
Second surface roughness smaller than the surface roughness due to the uneven shape of
By forming the uneven shape of, a so-called fractal structure (a structure in which a substantially similar shape appears with each enlargement, in this case, a double roughness structure) is formed, and the water repellency obtained by only one step of surface roughness is achieved. In comparison, remarkably excellent water repellency can be obtained. Further, since the second uneven shape has a surface roughness structure smaller than that of the first uneven shape, there may be disappearance due to wear at a site where wear is expected, but Even if it disappears, the first uneven shape remains, so that the water repellency due to the first uneven shape and the water repellency due to the material of the thin layer itself are at least ensured. Improvement performance will also be secured. Therefore, even if it is applied to such a part, a surface structure excellent in durability is obtained as a result.
【００１４】このような第２の凹凸形状は、例えば、薄
層に含有された微粒子によって形成することができる。
微粒子としては、例えば、コロイダルシリカ粒子を用い
ることができ、特に撥水処理されたコロイダルシリカが
好ましい。このような撥水処理されたコロイダルシリカ
は市販されている（例えば、日本アエロジル社のコロイ
ダルシリカ”ＲＸ２００”）。あるいは、第２の凹凸形
状は、研削やエッチングによって形成することも可能で
ある。Such a second uneven shape can be formed, for example, by fine particles contained in a thin layer.
As the fine particles, for example, colloidal silica particles can be used, and water-repellent treated colloidal silica is particularly preferable. Such water repellent colloidal silica is commercially available (for example, colloidal silica “RX200” manufactured by Nippon Aerosil Co., Ltd.). Alternatively, the second uneven shape can be formed by grinding or etching.
【００１５】上記のような本発明に係る撥水性高輝度透
明材においては、第１の凹凸形状によって、表面におけ
る、背面からの光の集光機能により該光の輝度が高めら
れ、その第１の凹凸形状が形成された表面上に積層され
た低表面エネルギー物質からなる薄層の材料特性により
該薄層表面に撥水性が付与されるとともに、該薄層の表
面に形成された、第１の凹凸形状よりも小さい表面粗さ
の第２の凹凸形状により、撥水性が格段に（例えば、超
撥水性の領域にまで）高められる。したがって、輝度向
上性能と、優れた撥水性とを併せ持った、望ましい撥水
性高輝度透明材が得られることになる。そして、この撥
水性高輝度透明材においては、前述の如く、第２の凹凸
形状が摩耗等により、たとえ消滅あるいは低減したとし
ても、第１の凹凸形状はそのまま残るから、第１の凹凸
形状による輝度向上機能および撥水性付与機能、および
薄層の材料特性による撥水性は確保され、あるレベル以
上の輝度と撥水性を確保する上で、結果的に高い耐久性
が維持されることになる。In the water repellent high brightness transparent material according to the present invention as described above, the brightness of the light is enhanced by the first concavo-convex shape due to the function of collecting the light from the back surface on the front surface. The water repellency is imparted to the surface of the thin layer by the material characteristics of the thin layer made of the low surface energy substance laminated on the surface on which the uneven shape is formed, and the first layer is formed on the surface of the thin layer. The water repellency is remarkably enhanced (for example, to a super water repellent region) by the second uneven shape having a surface roughness smaller than that of the uneven shape. Therefore, it is possible to obtain a desirable water-repellent high-brightness transparent material having both the brightness improving performance and the excellent water repellency. In this water-repellent high-brightness transparent material, as described above, even if the second uneven shape disappears or is reduced due to wear or the like, the first uneven shape remains as it is. The brightness improving function and the water repellency imparting function, and the water repellency due to the material properties of the thin layer are ensured, and as a result, high durability is maintained in order to secure the brightness and the water repellency above a certain level.
【００１６】[0016]
【発明の実施の形態】以下に、本発明の望ましい実施の
形態を、図面を参照しながら説明する。図１および図２
は、本発明の一実施態様に係る撥水性高輝度透明材１を
示している。この撥水性高輝度透明材１の基材には、例
えば前述の３Ｍ社製のＢＥフィルムが用いられる。この
ＢＥフィルムは、例えば、透明なベースフィルム層２
と、その表面に透明な接着剤層３を介して接着された透
明な表面樹脂層４とからなり、表面樹脂層４の表面に、
第１の凹凸形状５が形成されている。第１の凹凸形状５
は、断面形状が、例えば４５度程度の傾斜角を有する三
角山形の凸条またはＶ溝からなる凹条が連接された形状
に形成されている。凸条または凹条のピッチは、５０μ
ｍ程度に設定されており、凸条の高さあるいは凹条の深
さも５０μｍ程度に設定されている。このようなＢＥフ
ィルムは、それ単独で、たとえば自発光する機器や画面
に貼り付けられることにより、背面からの光を第１の凹
凸形状５部分で集光でき、輝度を高めることができるよ
うになっている。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. 1 and 2
Shows a water-repellent high-brightness transparent material 1 according to an embodiment of the present invention. As the base material of the water-repellent high-brightness transparent material 1, for example, the BE film manufactured by 3M Co. is used. This BE film is, for example, a transparent base film layer 2
And a transparent surface resin layer 4 adhered to the surface thereof via a transparent adhesive layer 3, and on the surface of the surface resin layer 4,
The first uneven shape 5 is formed. First uneven shape 5
Is formed in a shape in which a triangular mountain-shaped convex line having a tilt angle of about 45 degrees or a concave line formed of V grooves is connected to each other. The pitch of ridges or ridges is 50μ
The height of the convex stripes or the depth of the concave stripes is also set to about 50 μm. By attaching such a BE film by itself to, for example, a self-luminous device or a screen, the light from the back surface can be condensed by the first uneven shape 5 portion, and the brightness can be increased. Has become.
【００１７】なお、この第１の凹凸形状５は、基本的に
は輝度向上機能を付与するために形成されたものである
が、数十ミクロンオーダーの微細な凹凸形状であるか
ら、材料の表面の撥水性を向上する効果も同時に奏す
る。The first uneven shape 5 is basically formed to impart a brightness improving function, but since it is a minute uneven shape of the order of several tens of microns, the surface of the material is It also has the effect of improving the water repellency.
【００１８】上記第１の凹凸形状５が形成された表面上
に、撥水性を有する低表面エネルギー物質からなる薄層
６が積層されている。低表面エネルギー物質としては、
前述の如く、フッ素系またはシリコーン系の化合物ある
いは樹脂若しくはその誘導体を用いることができる。こ
の薄層６も実質的に透明な層からなり、実質的に均一な
厚みの薄い層として積層されるものであるから、第１の
凹凸形状５はそのまま維持され、上記輝度向上機能がそ
のまま維持されるとともに、部材全体の透明性も維持さ
れる。そして、積層された薄層６自身の材料特性によ
り、薄層６の表面は優れた撥水性を有する。A thin layer 6 made of a low surface energy substance having water repellency is laminated on the surface on which the first uneven shape 5 is formed. As a low surface energy substance,
As described above, a fluorine-based or silicone-based compound or resin or its derivative can be used. Since the thin layer 6 is also formed of a substantially transparent layer and is laminated as a thin layer having a substantially uniform thickness, the first uneven shape 5 is maintained as it is and the above-mentioned brightness improving function is maintained as it is. At the same time, the transparency of the entire member is maintained. The surface of the thin layer 6 has excellent water repellency due to the material characteristics of the laminated thin layers 6 themselves.
【００１９】この薄層６の表面に、第１の凹凸形状５よ
りも小さい表面粗さの第２の凹凸形状７が形成されてい
る。この第２の凹凸形状７は、実質的に透明性を損なわ
ずに、つまり、可視光の減衰をほとんど伴わずに、か
つ、第１の凹凸形状５による輝度向上機能を損なわず
に、薄層６の表面の撥水性をさらに格段に高めるもので
ある。このような可視光の減衰をほとんど伴わない程度
の適当な微細凹凸としては、一般的には、中心線平均表
面粗さ（Ｒａ）にて１００ｎｍ以下のものである。On the surface of the thin layer 6, a second uneven shape 7 having a surface roughness smaller than that of the first uneven shape 5 is formed. This second uneven shape 7 is a thin layer without substantially impairing transparency, that is, with almost no attenuation of visible light and without impairing the brightness improving function of the first uneven shape 5. The water repellency of the surface of No. 6 is remarkably enhanced. As the appropriate fine irregularities with almost no attenuation of visible light, generally, the center line average surface roughness (Ra) is 100 nm or less.
【００２０】上記のような第２の凹凸形状７は、研削や
エッチングによって物理的にあるいは化学的に形成する
ことも可能であるが、本実施態様では、薄層６内に含有
された微粒子８によって形成されている。微粒子８とし
ては、例えば粒径が比較的均一にコントロールされたコ
ロイダルシリカを用いることができる。コロイダルシリ
カとしては、撥水処理されたものがより好ましい。The second uneven shape 7 as described above can be formed physically or chemically by grinding or etching, but in this embodiment, the fine particles 8 contained in the thin layer 6 are formed. Is formed by. As the fine particles 8, for example, colloidal silica whose particle size is controlled to be relatively uniform can be used. The colloidal silica is more preferably water repellent.
【００２１】このように構成された撥水性高輝度透明材
１においては、第１の凹凸形状５により、背面からの光
の輝度向上性能が付与され、同時に、数十ミクロン程度
の凹凸構造により、ある程度の撥水性が付与される。ま
た、薄層６が低表面エネルギー物質から構成されること
により、薄層６自身の材料特性によって高い撥水性が付
与されるとともに、薄層６の表面に第２の凹凸形状７が
形成されることにより、薄層６の表面の撥水性が格段に
高められ、水との接触角が１５０度以上の超撥水性さえ
達成可能となる。したがって、高輝度特性と優れた撥水
性を同時に達成できる。In the water-repellent high-brightness transparent material 1 thus constructed, the first uneven shape 5 imparts the brightness improving performance of the light from the back surface, and at the same time, by the uneven structure of about several tens of microns, Water repellency is imparted to some extent. Further, since the thin layer 6 is made of a low surface energy substance, high water repellency is imparted due to the material properties of the thin layer 6 itself, and the second uneven shape 7 is formed on the surface of the thin layer 6. As a result, the water repellency of the surface of the thin layer 6 is significantly enhanced, and even super water repellency with a contact angle with water of 150 degrees or more can be achieved. Therefore, high brightness characteristics and excellent water repellency can be achieved at the same time.
【００２２】また、第１の凹凸形状５と第２の凹凸形状
７との二重粗さ構造のうち、たとえ第２の凹凸形状７が
摩耗等により消滅したとしても、第１の凹凸形状５と薄
層６とは残るから、第１の凹凸形状５による輝度向上性
能と、第１の凹凸形状５および薄層６自身の材料特性に
よる撥水性とは実質的にそのまま維持されることにな
る。したがって、摩耗等に対する高耐久性が確保される
ことになる。In the double roughness structure of the first uneven shape 5 and the second uneven shape 7, even if the second uneven shape 7 disappears due to wear or the like, the first uneven shape 5 Since the thin layer 6 remains, the brightness enhancement performance by the first uneven shape 5 and the water repellency due to the material characteristics of the first uneven shape 5 and the thin layer 6 itself are substantially maintained. . Therefore, high durability against abrasion and the like is secured.
【００２３】[0023]
【実施例】以下に、実施例に基づいて説明する。
実施例１
三菱レーヨン社製フッ素樹脂”フロロナール”ＦＬ６０
０２と日本アエロジル社製撥水性コロイダルシリカＲＸ
２００を、適量の硬化剤（日本ポリウレタン社製”コロ
ネート”）とともに、キシレン：酢酸ブチル＝４：１の
混合溶剤中で超音波分散させ、総固形分濃度１％、フッ
素樹脂固形分：コロイダルシリカ＝１：１の塗布液を作
製した。これを３Ｍ社製輝度増加フィルム（ＢＥフィル
ム）に１５００ｒｐｍでスピンコートし、室温で乾燥し
て膜を作製した。得られた膜は透明で水接触角１６０．
８°、７ｍｇの水滴の転落角は７°であり、本来ＢＥフ
ィルムが有していた輝度向上性能を維持していた。つま
り、目標とする輝度向上性能と超撥水性とを併せ持つ透
明材が得られた。また、この膜は１２．５ｇ／ｃｍ 3 荷
重下での濡れたスポンジでの耐摩耗試験を２０００回行
っても接触角が１３０°までしか下がらなかった。した
がって、優れた耐久性も併せ持つものであった。EXAMPLES Hereinafter, examples will be described.
Example 1
Fluorine resin "Fluoronal" FL60 manufactured by Mitsubishi Rayon Co., Ltd.
02 and Nippon Aerosil Co., Ltd. water repellent colloidal silica RX
200 is an appropriate amount of curing agent ("Polyurethane Co., Ltd."
Nate ”) with xylene: butyl acetate = 4: 1
Ultrasonically disperse in mixed solvent, total solid content concentration 1%,
Make a coating solution of base resin solid content: colloidal silica = 1: 1
Made This is a 3M brightness increase film (BE fill
Spin coat at 1500 rpm and dry at room temperature.
To produce a film. The film obtained was transparent and had a water contact angle of 160.
The falling angle of water drops of 8 ° and 7 mg is 7 °.
The brightness improvement performance that the film had was maintained. Tsuma
Therefore, the transparency that has both the target brightness enhancement performance and super water repellency
A bright material was obtained. Also, this film is 12.5 g / cm 3load
2000 times of abrasion resistance test with wet sponge under heavy weight
Even so, the contact angle fell only to 130 °. did
Therefore, it also had excellent durability.
【００２４】比較例１
実施例１と同じコーティングを通常の表面が平滑なＰＥ
Ｔ（ポリエチレンテレフタレート）フィルムに対して行
った。その結果、得られた膜は透明で水接触角１２７．
１°、水滴の転落角は４０ｍｇの水滴を用いても９０°
以上であり、輝度向上性能は全くなかった。この膜は実
施例１と同一条件下で濡れたスポンジでの耐摩耗試験を
行ったところ接触角が７０°まで低下した。Comparative Example 1 PE coated with the same coating as in Example 1 but having a normal smooth surface
This was performed on a T (polyethylene terephthalate) film. As a result, the obtained film was transparent and had a water contact angle of 127.
1 °, water drop angle is 90 ° even with 40 mg water drop
As described above, there was no brightness improving performance. When this film was subjected to an abrasion resistance test with a wet sponge under the same conditions as in Example 1, the contact angle decreased to 70 °.
【００２５】[0025]
【発明の効果】以上説明したように、本発明に係る撥水
性高輝度透明材によれば、高い輝度向上機能と優れた撥
水性とを併せ持った表面構造を有する、従来にない新規
な透明材を実現できる。As described above, the water-repellent high-brightness transparent material according to the present invention is a novel transparent material which has a surface structure having both a high brightness improving function and excellent water-repellent property. Can be realized.
【００２６】この本発明に係る撥水性高輝度透明材は、
例えば、浴室や洗面所等の水周りの壁材や照明表面材の
用途、噴水やプール等における照明機器、自動車のヘッ
ドランプ、街灯、ネオンサイン、街頭テレビ、看板、標
識、自動販売機等の自発光するものの基材や表面材、意
匠面形成材などに用いて極めて好適なものであり、輝度
向上機能により照明や表示性能を高めることができると
ともに、優れた撥水性により機器や部材への着滴防止を
達成することができる。The water-repellent high-brightness transparent material according to the present invention is
For example, the use of wall materials and lighting surface materials around water such as bathrooms and washrooms, lighting equipment in fountains and pools, headlights of cars, street lights, neon signs, street TV, billboards, signs, vending machines, etc. It is extremely suitable for use as a base material, surface material, design surface forming material, etc. that emits light by itself, and can enhance lighting and display performance with a brightness enhancement function, and also has excellent water repellency for equipment and members. Drip prevention can be achieved.
【００２７】また、寒冷地においては、自動車のテール
やヘッドランプ、街灯、ネオンサイン、屋外照明、街頭
テレビ、看板、標識、自動販売機など自発光するものの
基材や表面材、意匠面形成材などに、輝度向上機能に加
え、特に着雪防止性能を付与することができる。In cold regions, the base material, surface material, and design surface forming material for self-luminous materials such as automobile tails, headlamps, street lights, neon signs, outdoor lighting, street TVs, signs, signs, and vending machines. In addition to the brightness improving function, it is possible to add snow accretion prevention performance to the above.
【図１】本発明の一実施態様に係る撥水性高輝度透明材
の概略部分断面図である。FIG. 1 is a schematic partial cross-sectional view of a water repellent high brightness transparent material according to an embodiment of the present invention.
【図２】図１の撥水性高輝度透明材のＩＩ部の拡大概略
断面図である。FIG. 2 is an enlarged schematic cross-sectional view of a II portion of the water repellent high brightness transparent material of FIG.
１ 撥水性高輝度透明材 ２ 透明なベースフィルム層 ３ 接着剤層 ４ 透明な表面樹脂層 ５ 第１の凹凸形状 ６ 薄層 ７ 第２の凹凸形状 ８ 薄層内含有微粒子 1 Water repellent high brightness transparent material 2 Transparent base film layer 3 Adhesive layer 4 Transparent surface resin layer 5 First uneven shape 6 thin layers 7 Second uneven shape 8 Fine particles contained in thin layer
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ３２Ｂ 7/02 １０３ Ｂ３２Ｂ 7/02 １０３ 27/00 １０１ 27/00 １０１ 27/18 27/18 Ｚ 27/30 27/30 Ｄ Ｃ０９Ｋ 3/18 １０２ Ｃ０９Ｋ 3/18 １０２ １０４ １０４ Ｆ２１Ｖ 3/04 Ｆ２１Ｖ 3/04 Ｂ Ｃ Ｆ (72)発明者 武田 宏二 福岡県北九州市小倉北区中島２丁目１番１ 号 東陶機器株式会社内 (72)発明者 中島 章 神奈川県茅ヶ崎市本村２丁目８番１号 株 式会社先端技術インキュベーションシステ ムズ内 Ｆターム(参考） 4D075 AE03 CA10 CA13 CA36 CA47 CB04 DA07 DB31 DC24 EA07 EB16 EB42 EB56 EC03 4F100 AA20A AK01B AK17A AK52A BA02 BA07 CA02 DD01A DD01B DE01A EH46A EJ15A EJ34A GB41 JB06A JM01A JN01A JN01B JN30 4H020 BA12 BA32 Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B32B 7/02 103 B32B 7/02 103 27/00 101 27/00 101 27/18 27/18 Z 27/30 27 / 30 D C09K 3/18 102 C09K 3/18 102 104 104 104 F21V 3/04 F21V 3/04 BCF (72) Inventor Koji Takeda No. 1-1 1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Equipment Co., Ltd. In-company (72) Inventor Akira Nakajima 2-8-1, Motomura, Chigasaki-shi, Kanagawa F-term in advanced technology incubation system of stock company (reference) 4D075 AE03 CA10 CA13 CA36 CA47 CB04 DA07 DB31 DC24 EA07 EB16 EB42 EB56 EC03 4F100 AA20A AK01B AK17A AK52A BA02 BA07 CA02 DD01A DD01B DE01A EH46A EJ15A EJ34A GB41 JB06A JM01A JN01A JN01B JN30 4H020 BA12 BA32
Claims (8)
高める第１の凹凸形状が形成され、該第１の凹凸形状が
形成された表面上に、撥水性を有する低表面エネルギー
物質からなる薄層が積層され、該薄層の表面に、前記第
１の凹凸形状よりも小さい表面粗さの第２の凹凸形状が
形成されていることを特徴とする撥水性高輝度透明材。1. A low surface energy substance having water repellency, which is formed on a surface of a transparent material with a first uneven shape for enhancing the brightness of light from the back surface, and has water repellency on the surface on which the first uneven shape is formed. 2. A water-repellent high-brightness transparent material, comprising: a thin layer formed by laminating a second uneven shape having a surface roughness smaller than that of the first uneven shape on the surface of the thin layer.
なる、請求項１の撥水性高輝度透明材。2. The water repellent high brightness transparent material according to claim 1, wherein the transparent material is a transparent plastic film.
の凸条またはＶ溝からなる凹条が連接された形状に形成
されている、請求項１または２の撥水性高輝度透明材。3. The water-repellent high-brightness transparent material according to claim 1, wherein the first uneven shape is formed in a shape in which convex stripes having a triangular mountain-shaped cross section or concave stripes formed of V grooves are connected to each other. .
が、フッ素系またはシリコーン系の化合物あるいは樹脂
若しくはその誘導体からなる、請求項１ないし３のいず
れかに記載の撥水性高輝度透明材。4. The water-repellent high-brightness transparent material according to claim 1, wherein the low surface energy substance forming the thin layer comprises a fluorine-based or silicone-based compound, a resin or a derivative thereof.
る、請求項１ないし４のいずれかに記載の撥水性高輝度
透明材。5. The water repellent high brightness transparent material according to claim 1, wherein thin layers are laminated by coating.
粒子によって形成されている、請求項１ないし５のいず
れかに記載の撥水性高輝度透明材。6. The water-repellent high-brightness transparent material according to claim 1, wherein the second uneven shape is formed of fine particles contained in a thin layer.
る、請求項６の撥水性高輝度透明材。7. The water-repellent high-brightness transparent material according to claim 6, wherein the fine particles are colloidal silica particles.
グによって形成されている、請求項１ないし５のいずれ
かに記載の撥水性高輝度透明材。8. The water-repellent high-brightness transparent material according to claim 1, wherein the second uneven shape is formed by grinding or etching.
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| JP2001194229A JP2003001736A (en) | 2001-06-27 | 2001-06-27 | Water repellent highly bright transparent material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001194229A JP2003001736A (en) | 2001-06-27 | 2001-06-27 | Water repellent highly bright transparent material |
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