JPH07290652A - Reflection preventing film having excellent optical characteristics and production thereof - Google Patents
Reflection preventing film having excellent optical characteristics and production thereofInfo
- Publication number
- JPH07290652A JPH07290652A JP6104339A JP10433994A JPH07290652A JP H07290652 A JPH07290652 A JP H07290652A JP 6104339 A JP6104339 A JP 6104339A JP 10433994 A JP10433994 A JP 10433994A JP H07290652 A JPH07290652 A JP H07290652A
- Authority
- JP
- Japan
- Prior art keywords
- film
- ionizing radiation
- curable resin
- optical characteristics
- rough
- 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.)
- Granted
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ワープロ、コンピュー
タ、テレビ、車載用計器盤等の各種ディスプレイ等、特
に液晶ディスプレイの表面に用いられる耐擦傷性防眩フ
ィルム及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scratch-resistant antiglare film used for various displays such as word processors, computers, televisions, in-vehicle instrument panels, etc., particularly liquid crystal displays, and a method for producing the same.
【０００２】[0002]
【従来の技術】表示面における使用性を向上させるため
の方法として、眩しさを減ずることと、画像の解像度を
低下させないことの、相反する要求性能を満足させるべ
く、種々の試みがなされている。例えば、特開平5-1622
61に記載された様に、１種あるいは数種の粒径をもつビ
ーズを用い、防眩性をもたせる方法では、一般的にヘイ
ズと光沢度のバランス（光学特性）が悪い。すなわち、
高Hazeの反射防止フィルムを製造しようとする場合に
は、コートする樹脂中に、マット剤（各種ビーズ等）
を、混入する量を増やすのが普通であるが、前記マット
剤の割合を多くすることにより、コーティング適性が悪
くなり、均一なコート面を得る事が難しい。また特開昭
63-298201 、特開昭64-46702に明記されているノングレ
ア法では、型材を用いた凹凸の形成をしているが、この
方法では緻密（Ra=0.5以下) かつ高ヘイズ( 15〜45) で
ある反射防止フィルムを製造することができない。又表
面風合においても、マット剤混入タイプの方が均一なも
のが得られる。2. Description of the Related Art As a method for improving usability on a display surface, various attempts have been made to satisfy contradictory performance requirements of reducing glare and not reducing image resolution. . For example, Japanese Patent Laid-Open No. 5-1622
As described in No. 61, in a method of using beads having one kind or several kinds of particle diameters to provide antiglare property, the balance between haze and glossiness (optical characteristics) is generally poor. That is,
When manufacturing an anti-reflective film with high haze, a matting agent (various beads, etc.) should be added to the coating resin.
It is usual to increase the amount of the above-mentioned mixed in, but if the ratio of the matting agent is increased, the suitability for coating is deteriorated and it is difficult to obtain a uniform coated surface. In addition,
In the non-glare method specified in JP-A-63-298201 and JP-A-64-46702, unevenness is formed using a mold material, but with this method, fineness (Ra = 0.5 or less) and high haze (15 to 45) It is not possible to produce an antireflection film that is Also in terms of surface texture, the matting agent mixed type is more uniform.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、実際
にディスプレイの画像を見る場合に、眩しさを感ずるこ
となく、表示された文字、その他の画像の解像度がよ
く、コントラストもはっきりとした状態とするような、
優れた光学特性を有する防眩性フィルムを得ることにあ
る。DISCLOSURE OF THE INVENTION It is an object of the present invention to provide a good resolution of displayed characters and other images and a clear contrast without actually feeling glare when actually viewing an image on a display. Like a state,
It is to obtain an antiglare film having excellent optical properties.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、鋭意研究
の結果、耐擦傷性ハードコートと、さらにその表面に目
的とする光学特性値を、精度よく再現しうる薄いコート
層を設けてなることを主たる特徴とする次のような発明
を得ることができた。それらは下記〜記載の各発明
を包含するものである。 透明プラスチックフィルム上に、電離放射線硬化型
樹脂からなる粗い凹凸層を有し、この凹凸層の表面に沿
って細かい凹凸があることを特徴とする優れた光学特性
をもつ反射防止フィルム。 透明プラスチックフィルム上に、マット剤入りの電
離放射線硬化型樹脂を塗工し、乾燥時の樹脂対流による
粗い凹凸を形成するとともに、マット剤の浮上による細
かい凹凸を形成することを特徴とする優れた光学特性を
もつ反射防止フィルムの製造方法。 粗いエンボスを施した透明プラスチックフィルム上
に、電離放射線硬化型樹脂とマット剤による細かい凹凸
を形成することを特徴とする優れた光学特性を持つ優れ
た光学特性を持つ反射防止フィルムの製造方法。 透明プラスチックフィルム上に、電離放射線硬化型
樹脂を塗工し、その上に表面に粗い凹凸を有する賦型フ
ィルムをラミネートし、電離放射線照射後、前記賦型フ
ィルムを剥離することにより、表面に粗い凹凸を形成し
たフィルムを製造し、更にその表面に細かな凹凸を形成
する樹脂層を塗工する事を特徴とする優れた光学特性を
持つ反射防止フィルムの製造方法。As a result of earnest research, the present inventors have found that a scratch-resistant hard coat and a thin coat layer on the surface of which a desired optical characteristic value can be accurately reproduced. The following inventions, which are mainly characterized by the above, have been obtained. They include the inventions described below. An antireflection film having excellent optical characteristics, characterized in that a rough uneven layer made of an ionizing radiation curable resin is provided on a transparent plastic film, and fine unevenness is present along the surface of the uneven layer. An excellent feature of coating a transparent plastic film with a matting agent-containing ionizing radiation curable resin to form rough irregularities due to resin convection during drying and to form fine irregularities due to floating of the matting agent. A method for producing an antireflection film having optical characteristics. A method for producing an antireflection film having excellent optical characteristics, which comprises forming fine irregularities by an ionizing radiation-curable resin and a matting agent on a transparent embossed transparent plastic film. A transparent plastic film is coated with an ionizing radiation-curable resin, a patterning film having rough irregularities on the surface is laminated on the transparent plastic film, and after irradiation with ionizing radiation, the patterning film is peeled off to give a rough surface. A method for producing an antireflection film having excellent optical characteristics, which comprises producing a film having irregularities and then coating a resin layer for forming fine irregularities on the surface thereof.
【０００５】さらに、本発明について詳細に説明する。
本発明による、耐擦傷性防眩フィルムの構成としては、
基材となる透明フィルムに、電離放射線硬化型樹脂を塗
工し、溶剤を乾燥させた後、賦型フィルムを前記電離放
射線硬化型樹脂層にラミネートし、電離放射線を照射し
て、電離放射線硬化型樹脂を硬化させ、前記賦型フィル
ムを剥離し、その後、防眩性を有する樹脂層を、形成さ
せることにより得られる。Further, the present invention will be described in detail.
The constitution of the scratch-resistant antiglare film according to the present invention includes:
Ionizing radiation curable resin is applied to the transparent film as the base material, the solvent is dried, and then the patterning film is laminated on the ionizing radiation curable resin layer, irradiated with ionizing radiation, and cured by ionizing radiation. It is obtained by curing the mold resin, peeling off the patterning film, and then forming a resin layer having an antiglare property.
【０００６】基材となる透明プラスチックフィルムとし
ては、種々のフィルムを使用することができる。たとえ
ば、トリアセチルセルロースフィルム、ポリエステルフ
ィルム、ポリエチレンフィルム、ポリプロピレンフィル
ム、ポリ塩化ビニールフィルム、アセチルセルロースブ
チレートフィルム、ポリスチレンフィルム、ポリカーボ
ネートフィルム、ポリメチルペンテンフィルム、ポリス
ルフォンフィルム等である。本発明において使用できる
賦型フィルムとしての材質は、柔軟性のある10〜100 μ
ｍ程度の厚さのポリエステルフィルム、トリアセチルセ
ルロースフィルム、ポリエチレンフィルム、ポリプロピ
レンフィルム、ポリカーボネートフィルム、ナイロンフ
ィルム等であり、少なくともこれらフィルムの片面は、
粗面化するが、粗面化の方法は、フィルム製膜の際に、
エンボスされた金属ロールと圧ロールによる凹凸の転
移、あるいはフラットフィルムに、超硬度の粉体、粒体
等を適宜の方法で吹きつけて粗面化してもよい。Various films can be used as the transparent plastic film as the base material. Examples thereof include triacetyl cellulose film, polyester film, polyethylene film, polypropylene film, polyvinyl chloride film, acetyl cellulose butyrate film, polystyrene film, polycarbonate film, polymethylpentene film, polysulfone film and the like. The material as the patterning film that can be used in the present invention has flexibility of 10 to 100 μm.
m is a polyester film, a triacetyl cellulose film, a polyethylene film, a polypropylene film, a polycarbonate film, a nylon film, etc., and at least one side of these films is
The surface is roughened, but the method of surface roughening is
The surface of the flat film may be roughened by spraying an ultra-hard powder or granules onto the flat film by an embossed metal roll and a pressure roll, or by transferring it to a flat film.
【０００７】電離放射線硬化型樹脂としては、ＵＶ・Ｅ
Ｂで硬化する樹脂、たとえば、特開平5-162261にあるよ
うに、紫外線硬化型樹脂として、紫外線硬化型アクリル
ウレタン系樹脂、紫外線硬化型ポリエステルアクリレー
ト系樹脂、或いは紫外線硬化型エポキシアクリレート系
樹脂等を用いることができる。例えば、紫外線硬化型ア
クリルウレタン系樹脂は、ポリエステルポリオールにイ
ソシアネートモノマー、あるいはプレポリマーを反応さ
せ、得られた生成物に、水酸基を有するアクリレートま
たはメタクリレート系のモノマーを反応させることによ
って得られる。光重合開始剤としては、ベンゾフェノン
誘導体、アセトフェノン誘導体、アントラキノン誘導体
等を単独で、あるいは併用して用いることができる。こ
の電離放射線硬化型樹脂には、さらに皮膜形成をより良
くさせる成分例えばアクリル系樹脂等を適宜選択配合す
ることがある。その他、粘度調整剤、溶剤等を配合しコ
ート液とする。マツト剤としては、主としてシリカビー
ズ等の無機ビーズ、アクリルビーズ等の樹脂ビーズを用
いることができる。As the ionizing radiation curable resin, UV / E
Resins that are cured by B, for example, as disclosed in Japanese Patent Laid-Open No. 5-162261, as the ultraviolet curable resin, an ultraviolet curable acrylic urethane resin, an ultraviolet curable polyester acrylate resin, an ultraviolet curable epoxy acrylate resin, or the like is used. Can be used. For example, the UV-curable acrylic urethane-based resin is obtained by reacting a polyester polyol with an isocyanate monomer or a prepolymer, and then reacting the obtained product with an acrylate- or methacrylate-based monomer having a hydroxyl group. As the photopolymerization initiator, a benzophenone derivative, an acetophenone derivative, an anthraquinone derivative or the like can be used alone or in combination. In this ionizing radiation curable resin, a component that improves film formation, such as an acrylic resin, may be appropriately selected and blended. In addition, a viscosity adjusting agent, a solvent and the like are mixed to obtain a coating liquid. As the matting agent, inorganic beads such as silica beads and resin beads such as acrylic beads can be mainly used.
【０００８】本発明の工程について、図１によりさらに
詳細に説明する。前記透明フィルム１の上に、電離放射
線硬化型樹脂を主成分とする前記コート液２を、塗工
し、溶剤を乾燥除去してから柔軟性の、かつ少なくと
も、片面に粗い凹凸面を有する賦型フィルム３の凹凸面
を前記コート面にラミネートし、しかる後、透明フィル
ム１あるいは賦型フィルム３を通して、紫外線を照射
し、電離放射線硬化型樹脂２を硬化させた後、前記賦型
フィルムを剥離する。この粗い凹凸面の中心線平均粗さ
（Ｒａ）は、 0.5〜1.5 μｍの範囲、また、凹凸の平均
間隔（Ｓｍ）は、 100〜300 μｍの範囲の範囲が好まし
い。かくして得られたコート面の凹凸粗面に、薄い防眩
性コート層６を設けることにより、優れた光学特性をも
つ反射防止フィルムを得ることができた。この防眩性コ
ート層としては、例えば、前記電離放射線硬化型樹脂と
略同じ組成物であるが、有機表面処理されたシリカビー
ズ等を含有させたコート液として、溶媒にて希釈して、
スプレイコート等により、前記賦型処理された電離放射
線硬化型樹脂面に薄膜状に第２のコート層が形成され
る。その断面を、模式的に表したのが図１である。すな
わち、賦型フィルムにより形成された粗い凹凸面に沿っ
て形成された、細かい凹凸により、すぐれた防眩性と、
光線透過率を持つフィルムが得られた。前記第２のコー
ト層の細かい凹凸面の中心線平均粗さ（Ｒａ）は、0.05
〜0.5μｍの範囲、また、凹凸の平均間隔（Ｓｍ）は、2
0〜70μｍの範囲の範囲が好ましい。前記第１、第２の
コート層を設けた本発明による防眩フィルムとしてのＲ
ａ、およびＳｍの範囲としては、Ｒａは0.1 〜1.0 μ
ｍ、Ｓｍは 20 〜 120μｍが良な防眩性を示す。第１の
粗いコート層の上に設けられた第２の上記薄膜状の、言
わば第２コート層は、光拡散剤を含有させる方法を用い
ることを基本的技術とするが、相応の光拡散性能を示す
ものであれば良い。The process of the present invention will be described in more detail with reference to FIG. On the transparent film 1, the coating liquid 2 containing an ionizing radiation-curable resin as a main component is applied, the solvent is dried and removed, and then the coating liquid 2 is flexible and has at least one rough surface. The concavo-convex surface of the mold film 3 is laminated on the coated surface, and then ultraviolet rays are radiated through the transparent film 1 or the shape-imparting film 3 to cure the ionizing radiation-curable resin 2 and then the shape-imparting film is peeled off. To do. The center line average roughness (Ra) of the rough surface is preferably 0.5 to 1.5 μm, and the average spacing (Sm) of the unevenness is preferably 100 to 300 μm. By providing a thin antiglare coat layer 6 on the rough surface of the coated surface thus obtained, an antireflection film having excellent optical characteristics could be obtained. The antiglare coat layer, for example, is a composition substantially the same as the ionizing radiation curable resin, as a coating solution containing organic surface-treated silica beads, etc., diluted with a solvent,
By spray coating or the like, a second coat layer is formed in a thin film on the surface of the ionizing radiation-curable resin that has been subjected to the shaping treatment. FIG. 1 schematically shows the cross section. That is, formed along the rough uneven surface formed by the shape-imparting film, due to the fine unevenness, excellent antiglare property,
A film having a light transmittance was obtained. The center line average roughness (Ra) of the fine uneven surface of the second coat layer is 0.05.
~ 0.5μm range, and the average spacing (Sm) of irregularities is 2
A range of 0 to 70 μm is preferable. R as an anti-glare film according to the present invention provided with the first and second coat layers
As Ra and Sm, Ra is 0.1 to 1.0 μ.
m and Sm of 20 to 120 μm show good antiglare properties. The second thin film-like, so-called second coat layer provided on the first rough coat layer is basically composed of a method of containing a light diffusing agent. As long as it indicates
【０００９】上述の説明においては、第１のコート層は
透明フィルムの上に設けたが、柔軟性のある、賦型フィ
ルムの凹凸面に設けてもよく、その場合、賦型フィルム
の凹凸面に電離放射線硬化型樹脂を主成分とする、前述
の第１のコート液を塗工し、溶剤を除去した後、透明フ
ィルムをラミネートし、賦型フィルムあるいは透明フィ
ルムを通して紫外線を照射し、電離放射線硬化型樹脂を
硬化させ、しかる後、賦型フィルムを剥離する。賦型さ
れたコート面２の上に、第２のコート層６を設ける工程
は、前述と同一に実施することができる。前記の方法で
は、賦型フィルムにより、第１の凹凸を形成したが、電
離放射線硬化型樹脂の乾燥時の、樹脂対流により粗い凹
凸を形成させて、前記と同じ方式により、薄膜状の第２
のコート層を設けてもよい。In the above description, the first coat layer is provided on the transparent film, but it may be provided on the uneven surface of the shape-imparting film having flexibility, in which case the uneven surface of the shape-imparting film is used. Is coated with the above-mentioned first coating liquid containing an ionizing radiation-curable resin as a main component, and after removing the solvent, a transparent film is laminated, and ultraviolet rays are radiated through the shape-imparting film or the transparent film. The curable resin is cured, and then the patterning film is peeled off. The step of providing the second coat layer 6 on the patterned coat surface 2 can be performed in the same manner as described above. In the above-mentioned method, the first unevenness was formed by the shape-imparting film, but rough unevenness was formed by resin convection during the drying of the ionizing radiation-curable resin, and the thin film-shaped second unevenness was formed by the same method as described above.
You may provide the coating layer of.
【００１０】同様な効果を得るための別の方法は、前記
透明プラスチックフィルムを、エンボス加工する方法、
あるいは、サンドブラストによる粗面化により、第１の
凹凸加工をし、次いで、前記の方法と同様に、第２の薄
膜を設けても良く、これらの、エンボス法及びサンドブ
ラスト法により、得られる防眩性賦型フィルムの断面
を、模式的に表したのが図２、図３である。また、別の
方法としては、図４に示すように、透明プラスチックフ
ィルムのうえに溶剤希釈した有機処理シリカビーズを含
む紫外線硬化樹脂を塗工し、熱乾燥時の樹脂対流による
粗い凹凸を形成させ、さらに浮上（リフティング）効果
によりシリカビーズによる微細な凹凸をつけることも可
能である。Another method for obtaining the same effect is to emboss the transparent plastic film,
Alternatively, the surface may be roughened by sandblasting to form the first unevenness, and then the second thin film may be provided in the same manner as in the above method. The antiglare obtained by the embossing method and the sandblasting method may be used. 2 and 3 schematically show the cross section of the sexual imparting film. As another method, as shown in FIG. 4, an ultraviolet curable resin containing solvent-diluted organically treated silica beads is applied onto a transparent plastic film to form rough irregularities due to resin convection during heat drying. Furthermore, it is possible to make fine irregularities by silica beads due to the lifting effect.
【００１１】[0011]
【作用】かくして得られた防眩性フィルムは、望ましい
光学特性を示し、かつ耐擦傷性、耐薬品性の点でも、実
用上、極めて有用である。The thus-obtained antiglare film exhibits desirable optical properties and is extremely useful in practical use in terms of scratch resistance and chemical resistance.
【００１２】（実施例１）トリアセチルセルロースフィ
ルムＴＡＣ１［ 80μｍ（富士写真フィルム社製フジＴ
ＡＣ FT-UV-80 ）］に紫外線硬化型樹脂２［（大日精化
社製 セイカビーム）］、 多官能モノマー 100 重量部 ポリマー 5 重量部 開始剤 3 重量部 溶剤（トルエン） の組成の液を7gr/m2・dry になる様に塗工し、溶剤を乾
燥した後、粗い凹凸を有する賦型フィルムとして、マッ
トPET ３［（東レ社製 X-42）］をラミネートし160wの
水銀灯を用いて、15cmの距離から照射した（ウェブスピ
ード：12m/min.）。樹脂の硬化後、マットＰＥＴを剥離
し、ノングレアＴＡＣを得た。 このノングレアＴＡＣ
に紫外線硬化型樹脂（大日精化社製 セイカビームＳ）
100 部に表面有機処理されたシリカビーズ（粒径1.5 μ
ｍ) 15部添加したものを 2μ/dryになる様に塗工６し、
溶剤を乾燥した後、15cmの距離から水銀灯３灯によるＵ
Ｖ照射 (160W) で10m/min.のウェブスピードで、硬化さ
せて反射防止フィルムを得た。そしてその反射防止フィ
ルムの物性は以下の通りであった。 Haze 30％, 60°Gross 20％, Ra=0.37μｍ, Sm=2
4.3μｍ, 全光線透過率 90.0％Example 1 Triacetyl cellulose film TAC1 [80 μm (Fuji T manufactured by Fuji Photo Film Co., Ltd.
AC FT-UV-80)], UV curable resin 2 [(Daikaseika Seika Beam)], polyfunctional monomer 100 parts by weight polymer 5 parts by weight initiator 3 parts by weight solvent (toluene) 7 gr / m 2 · dry, and after drying the solvent, a matte PET 3 [(Toray X-42)] is laminated as a patterning film with rough irregularities, and a 160w mercury lamp is used. Irradiation from a distance of 15 cm (web speed: 12 m / min.). After curing the resin, the matte PET was peeled off to obtain a non-glare TAC. This non-glare TAC
UV curable resin (Daika Seika Seika Beam S)
100 parts of surface-treated silica beads (particle size: 1.5 μ
m) Coat 6 parts with 15 parts added so as to be 2μ / dry,
After drying the solvent, use a mercury lamp to make a U from a distance of 15 cm.
An antireflection film was obtained by curing with V irradiation (160 W) at a web speed of 10 m / min. The physical properties of the antireflection film were as follows. Haze 30%, 60 ° Gross 20%, Ra = 0.37μm, Sm = 2
4.3 μm, total light transmittance 90.0%
【００１３】光学的物性値、表面粗さの測定法および測
定機器は、次の通りであり、以下の実施例も同じであ
る。 ヘイズ（曇価）<Haze>：ＪＩＳ Ｋ７１０５／東洋精機製 直読式ヘイズメーター 全光線透過率 ：ＪＩＳ Ｋ７１０５／東洋精機製 直読式ヘイズメーター 光沢度<Gross> ：ＪＩＳ７１０５／村上色彩技術研究所製 GM-3D The measuring methods and measuring instruments for optical physical properties and surface roughness are as follows, and the same applies to the following examples. Haze <Haze>: JIS K7105 / Toyo Seiki direct reading haze meter Total light transmittance: JIS K7105 / Toyo Seiki direct reading haze meter Gloss <Gross>: JIS7105 / Murakami Color Research Laboratory GM- 3D
【００１４】（実施例２）180メッシュの金剛砂を半硬
鋼スチール製金属ロールに噴射したエンボスロール１０
を用い、表面温度 120℃ ロールプレス圧100Kg/cm2 で
ＴＡＣフィルム80μｍ（富士写真フィルム社製 フジＴ
ＡＣ FT-UV-80）にエンボスを施す。このフィルム４の
上に、紫外線硬化型樹脂（大日精化社製 セイカビーム
Ｓ）100部に表面有機処理されたシリカビーズ（粒径1.5
μｍ) 15部添加したものを 4μ/dryになる様に塗工６
し、溶剤を乾燥した後、15cmの距離から水銀灯３灯によ
るＵＶ照射 (160W) を10m/min.のウェブスピードで行い
反射防止フィルムを得た。得られた反射防止フィルムの
物性は次の通りであった。 Haze 22％, 60°Gross 23％, Ra=0.35μｍ, Sm=3
0.3μｍ, 全光線透過率 90.0％(Embodiment 2) Embossing roll 10 in which 180-mesh hard sand is sprayed on a semi-hard steel steel metal roll.
With a surface temperature of 120 ° C and a roll press pressure of 100 Kg / cm 2 and a TAC film of 80 μm (Fuji Tec
Emboss AC FT-UV-80). On this film 4, 100 parts of ultraviolet curable resin (Seika Beam S manufactured by Dainichiseika Co., Ltd.) surface-treated with silica beads (particle size: 1.5
μm) Coating with 15 parts added so that it becomes 4 μ / dry 6
Then, after the solvent was dried, UV irradiation (160 W) was performed from a distance of 15 cm by three mercury lamps at a web speed of 10 m / min. To obtain an antireflection film. The physical properties of the obtained antireflection film were as follows. Haze 22%, 60 ° Gross 23%, Ra = 0.35μm, Sm = 3
0.3 μm, total light transmittance 90.0%
【００１５】（実施例３）ＴＡＣフィルム１［（富士写
真フィルム社製 フジＴＡＣ FT-UV-80 80μｍ）］に
紫外線硬化型樹脂（大日精化社製セイカビームＳ−１） 多官能モノマー 80重量部 3 官能モノマー 20重量部 ポリマー 2重量部 開始剤 3重量部 に溶剤希釈した有機処理シリカビーズ（粒径1.5 μｍ)
を添加したものを 5g/m2・dry になる様塗工５し、80℃
で溶剤を乾燥させ、樹脂対流による粗い凹凸をつけた
後、浮上（リフティング）効果によりシリカビーズによ
る細かい凹凸をつけ、更に、160W水銀灯３灯を用い、15
cmの距離からＵＶ照射を10m/min.のウェブスピードで硬
化させ反射防止フィルムを得た。得られたフィルムの物
性は以下の通りであった。 Haze 28％, 60°Gross 22％ Ra=0.34 μｍ, Sm=27.2
μｍ, 全光線透過率90.0％(Example 3) TAC film 1 [(Fuji TAC FT-UV-80 80 μm manufactured by Fuji Photo Film Co., Ltd.]] and an ultraviolet curable resin (Seika Beam S-1 manufactured by Dainichi Seika) 80 parts by weight of a polyfunctional monomer Trifunctional monomer 20 parts by weight Polymer 2 parts by weight Organically treated silica beads diluted with solvent 3 parts by weight (particle size 1.5 μm)
Coating with 5 added to make it 5g / m 2 · dry, 80 ℃
After drying the solvent with, to make rough irregularities due to resin convection, make fine irregularities with silica beads due to the floating effect, and then use three 160W mercury lamps for 15
UV irradiation was performed at a web speed of 10 m / min. from a distance of cm to obtain an antireflection film. The physical properties of the obtained film were as follows. Haze 28%, 60 ° Gross 22% Ra = 0.34 μm, Sm = 27.2
μm, total light transmittance 90.0%
【００１６】[0016]
【発明の効果】本発明により得られる反射防止フィルム
は、皮膜層が、有機物による表面有機処理されたシリカ
ビーズを含有している上、紫外線照射によって十分硬化
されているので、表面硬度及び耐薬品性優れると共に、
粗面化された表面に、薄く設けたコート層により、従来
以上に防眩性並びに透明性等光学特性に優れたものとな
った。INDUSTRIAL APPLICABILITY The antireflection film obtained by the present invention has a surface layer and chemical resistance because the coating layer contains silica beads surface-organized with an organic substance and is sufficiently cured by irradiation with ultraviolet rays. With excellent performance,
Due to the thin coating layer provided on the roughened surface, the optical properties such as the antiglare property and the transparency are more excellent than ever.
【図１】本発明の実施態様を示す断面の模式図である。FIG. 1 is a schematic view of a cross section showing an embodiment of the present invention.
【図２】本発明の別の実施態様を示す断面の模式図であ
る。FIG. 2 is a schematic view of a cross section showing another embodiment of the present invention.
【図３】本発明の実施における工程の途中を示す概念断
面図である。FIG. 3 is a conceptual cross-sectional view showing the middle of a step in carrying out the present invention.
【図４】本発明の実施における工程の途中を示す概念断
面図である。FIG. 4 is a conceptual cross-sectional view showing the middle of the process in the implementation of the present invention.
１．透明フィルム ２．電離放射線硬化型樹脂のコート層 ３．賦型フィルム ４．エンボスされた基材透明フィルム ５．サンドブラストにより粗面化された透明賦型フィル
ム ６．有機処理されたシリカビーズを含有した電離放射線
硬化型樹脂層 ７．光拡散剤 １０．エンボスロール １１．ゴムロール １２．加熱部1. Transparent film 2. Coating layer of ionizing radiation curable resin 3. Shaped film 4. Embossed base material transparent film 5. 5. Transparent patterning film roughened by sandblasting 6. Ionizing radiation curable resin layer containing organically treated silica beads Light diffusing agent 10. Embossing roll 11. Rubber roll 12. Heating part
Claims (4)
射線硬化型樹脂からなる粗い凹凸層を有し、この凹凸層
の表面に沿って細かい凹凸があることを特徴とする優れ
た光学特性をもつ反射防止フィルム。1. An antireflection having excellent optical characteristics, characterized in that a rough uneven layer made of an ionizing radiation curable resin is formed on a transparent plastic film, and fine unevenness is present along the surface of the uneven layer. the film.
剤入りの電離放射線硬化型樹脂を塗工し、乾燥時の樹脂
対流による粗い凹凸を形成するとともに、マット剤の浮
上による細かい凹凸を形成することを特徴とする優れた
光学特性を持つ反射防止フィルムの製造方法。2. A transparent plastic film is coated with an ionizing radiation-curable resin containing a matting agent to form rough irregularities due to resin convection during drying and fine irregularities due to floating of the matting agent. A method for producing an antireflection film having excellent optical characteristics.
フィルム上に、電離放射線硬化型樹脂とマット剤による
細かい凹凸を形成することを特徴とする優れた光学特性
を持つ反射防止フィルムの製造方法。3. A method for producing an antireflection film having excellent optical characteristics, which comprises forming fine irregularities by an ionizing radiation curable resin and a matting agent on a transparent plastic film having rough embossing.
射線硬化型樹脂を塗工し、その上に表面に粗い凹凸を有
する賦型フィルムをラミネートし、電離放射線照射後、
前記賦型フィルムを剥離することにより、表面に粗い凹
凸を形成したフィルムを製造し、更にその表面に細かな
凹凸を形成する樹脂層を塗工することを特徴とする優れ
た光学特性を持つ反射防止フルムの製造方法。4. A transparent plastic film is coated with an ionizing radiation-curable resin, a patterning film having rough irregularities on the surface is laminated thereon, and after irradiation with ionizing radiation,
By peeling off the shape-imparting film, a film having rough irregularities formed on the surface is produced, and a resin layer for forming fine irregularities on the surface is coated, which has excellent optical characteristics. Method of manufacturing prevention flume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10433994A JP3374299B2 (en) | 1994-04-20 | 1994-04-20 | Anti-glare film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10433994A JP3374299B2 (en) | 1994-04-20 | 1994-04-20 | Anti-glare film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07290652A true JPH07290652A (en) | 1995-11-07 |
| JP3374299B2 JP3374299B2 (en) | 2003-02-04 |
Family
ID=14378169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10433994A Expired - Lifetime JP3374299B2 (en) | 1994-04-20 | 1994-04-20 | Anti-glare film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3374299B2 (en) |
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