JP2001351458A - Key sheet and its manufacturing method - Google Patents
Key sheet and its manufacturing methodInfo
- Publication number
- JP2001351458A JP2001351458A JP2000168932A JP2000168932A JP2001351458A JP 2001351458 A JP2001351458 A JP 2001351458A JP 2000168932 A JP2000168932 A JP 2000168932A JP 2000168932 A JP2000168932 A JP 2000168932A JP 2001351458 A JP2001351458 A JP 2001351458A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- key sheet
- resin film
- display portion
- metallic
- 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
- Push-Button Switches (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、携帯電話や自動車
電話等の各種移動通信端末、固定電話機、パソコンキー
ボード、リモートコントローラ、ＡＶ機器等に用いられ
る各種押釦スイッチのキーシート及びその製造方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key sheet of various push-button switches used for various mobile communication terminals such as a portable telephone and a car telephone, a fixed telephone, a personal computer keyboard, a remote controller, an AV device, etc., and a method of manufacturing the same. It is.
【０００２】[0002]
【従来の技術】従来から、携帯機器に用いられる押釦ス
イッチに、裏面に表示部が印刷された樹脂フィルムが、
熱可塑性樹脂からなる釦の上面側と同形状に湾曲し釦と
一体化したキーシートを用いることが、薄型化、軽量化
等から注目されている。そのキーシートは、図８に示す
ように、裏面に所定文字・数字・記号・符号等の抜き文
字の表示部２が設けられた樹脂フィルム１と、熱可塑性
樹脂からなる釦３とを一体化したものが一般的である。2. Description of the Related Art Conventionally, a resin film having a display portion printed on a back surface is provided on a push button switch used in a portable device.
The use of a key sheet that is curved in the same shape as the upper surface side of a button made of a thermoplastic resin and is integrated with the button has attracted attention in terms of thickness reduction, weight reduction, and the like. As shown in FIG. 8, the key sheet is formed by integrating a resin film 1 provided with a display portion 2 for a predetermined character, numeral, symbol, code, etc. on a back surface thereof, and a button 3 made of a thermoplastic resin. What is done is common.
【０００３】その表示部の色彩は、黒色、灰色等の無彩
色、赤色、緑色、青色等の有彩色、金色、銀色等のメタ
リック調等さまざまで、表示部の構成も抜き文字印刷タ
イプの他に文字印刷タイプもある。これらのキーシート
の製造方法としては、表示部を印刷した樹脂フィルムと
熱可塑性樹脂とを射出成形により一体成形する方法が、
特開昭５４−１５４４６１号公報、特公平７−５４６５
６号公報等に記載されている。The color of the display section is various such as achromatic color such as black and gray, chromatic color such as red, green and blue, metallic color such as gold and silver, etc. There is also a character print type. As a method of manufacturing these key sheets, a method of integrally molding a resin film and a thermoplastic resin on which a display portion is printed by injection molding,
JP-A-54-154461, JP-B-7-5465.
No. 6 and the like.
【０００４】近年、携帯電話等のキーシートでは、金属
メッキ加工などで得られるような鏡面状の金属光沢のデ
ザインが多く要望されている。鏡面状の金属光沢を有す
るキーシートの構成として、図９に示すように、金属を
樹脂フィルム１の裏面に蒸着し金属光沢層５を形成した
構成がある。In recent years, for a key sheet of a cellular phone or the like, a mirror-like metallic luster design such as that obtained by metal plating has been demanded in many cases. As a configuration of a key sheet having a mirror-like metallic luster, as shown in FIG. 9, there is a configuration in which a metal is deposited on the back surface of the resin film 1 to form a metallic luster layer 5.
【０００５】この構成で抜き文字の表示部を形成する方
法は、図１０に示すように、樹脂フィルム１の裏面に金
属を蒸着して金属光沢層５を形成し、さらにその金属光
沢層の裏面に抜き文字の印刷層１１を形成後、エッチン
グにより抜き文字内の金属光沢層を除去して抜き文字の
金属光沢層による表示部２を形成していた。例えば、金
を蒸着して金色の鏡面状の金属光沢層を得たり、アルミ
ニウムを蒸着して銀色の鏡面状の金属光沢層を得ること
ができた。As shown in FIG. 10, a method of forming a display portion of a blank character with this configuration is to deposit a metal on the back surface of the resin film 1 to form a metal gloss layer 5, and further, to form a back surface of the metal gloss layer. After forming the printed layer 11 of the blank characters, the metallic glossy layer in the blank characters is removed by etching to form the display unit 2 with the metallic gloss layer of the blank characters. For example, a gold mirror-like metallic gloss layer could be obtained by depositing gold, or a silver mirror-like metallic gloss layer could be obtained by depositing aluminum.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記方
法で形成した抜き文字の金属光沢層による表示部は、樹
脂フィルムに蒸着した金属の色調しか具現化できず、鏡
面状の金属光沢に赤色、緑色、青色等の色彩豊かなバリ
エーションが図れなかった。However, the display portion formed by the metallic glossy layer of the blank characters formed by the above method can realize only the color tone of the metal deposited on the resin film, and the mirror-like metallic gloss has red and green colors. A variety of colors such as blue and blue could not be achieved.
【０００７】抜き文字の金属光沢層に色調を付加するキ
ーシートとして、図１２に示すように、樹脂フィルム１
の裏面に金属光沢層用着色層６を形成した後、さらに金
属光沢層５を形成し、その金属光沢層の裏面に抜き文字
の印刷層１１を形成後、エッチングにより抜き文字内の
金属光沢層を除去して抜き文字の金属光沢層による表示
部２を形成したキーシートがある。As shown in FIG. 12, a resin film 1 is used as a key sheet for adding a color tone to a metallic gloss layer of a blank character.
After forming a colored layer 6 for a metallic gloss layer on the back surface of the above, a metallic gloss layer 5 is further formed, a printed layer 11 of a blank character is formed on the back surface of the metallic gloss layer, and the metallic gloss layer in the blank character is etched. There is a key sheet in which the display unit 2 is formed by removing the characters and forming a metallic glossy layer of a blank character.
【０００８】しかし、このキーシートでは、抜き文字の
印刷層の抜き文字内の金属光沢層をエッチングにより除
去する際に、抜き文字内の金属光沢層用着色層６が除去
できないため、図１１に示すように、金属光沢層用着色
層６に遮られて表示部用着色層７が表面側から見えず、
表示部の色調を任意に設定できず、また操作者が抜き文
字の表示部を視認し難い問題があった。However, in this key sheet, when the metallic gloss layer in the printed characters of the printed characters is removed by etching, the colored layer 6 for the metallic gloss layer in the printed characters cannot be removed. As shown in the drawing, the colored layer 7 for the display unit is not seen from the surface side because of being blocked by the colored layer 6 for the metallic luster layer,
There has been a problem that the color tone of the display unit cannot be arbitrarily set, and it is difficult for the operator to visually recognize the display unit of the blank characters.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記課題を解
決するものであり、抜き文字の金属光沢層に色彩豊かな
バリエーションが図れ、かつ操作者が抜き文字の表示部
を視認し易いキーシートを、低コストで提供するもので
ある。すなわち、樹脂フィルムの裏面に抜き文字の透光
性の着色層が形成され、その着色層の裏面に金属光沢層
が積層された抜き文字の表示部を有する樹脂フィルム
が、樹脂からなる釦の上面側と同形状に湾曲し釦と一体
化してなるキーシートである。さらに、着色層が、複数
色であるキーシートである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a key is provided in which a metallic glossy layer of a blank character can be provided with a variety of colors and an operator can easily recognize a display portion of the blank character. The sheet is provided at low cost. That is, a transparent resin colored film layer is formed on the back surface of the resin film, and a resin film having a printed character display portion in which a metallic gloss layer is laminated on the back surface of the colored layer is the upper surface of a button made of resin. This is a key sheet that is curved in the same shape as the side and is integrated with the button. Further, the coloring layer is a key sheet having a plurality of colors.
【００１０】また、抜き文字の表示部を転写により樹脂
フィルムに形成し、次いで該樹脂フィルムを釦の上面側
と同形状に湾曲変形し、その湾曲変形内に射出成形によ
り樹脂を充填して釦を一体成形するキーシートの製造方
法である。Further, a display portion of a blank character is formed on a resin film by transfer, and then the resin film is curved and deformed into the same shape as the upper surface side of the button. This is a method for manufacturing a key sheet by integrally molding a key sheet.
【００１１】さらに、離型フィルムに形成された離型層
の上に、金属光沢層を蒸着により形成し、その金属光沢
層の上に抜き文字の透光性の着色層を塗布により形成し
た後、着色層の抜き文字内の金属光沢層をエッチングに
より除去して抜き文字の表示部を形成し、該抜き文字の
表示部を樹脂フィルムに転写するキーシートの製造方法
である。さらに、抜き文字の表示部を透光性の接着層を
介して樹脂フィルムに転写するキーシートの製造方法で
ある。Further, a metallic gloss layer is formed by vapor deposition on the release layer formed on the release film, and a light-transmitting colored layer of a blank character is formed by coating on the metallic gloss layer. And a method of manufacturing a key sheet for forming a display portion of a blank character by removing a metallic gloss layer in a blank character of a colored layer by etching, and transferring the display portion of the blank character to a resin film. Further, the present invention is a method for manufacturing a key sheet in which a display portion of a blank character is transferred to a resin film via a light-transmitting adhesive layer.
【００１２】[0012]
【発明の実施の形態】本発明をさらに詳細に説明する。
本発明は、図１に示すように、樹脂フィルム１の裏面に
抜き文字の透光性の着色層４が形成され、その着色層の
裏面に金属光沢層５が積層され、抜き文字の部位に表示
部用着色層７が形成された抜き文字の表示部２を有する
樹脂フィルム１が、樹脂からなる釦の上面側と同形状に
湾曲し釦と一体化したキーシートである。抜き文字の透
光性の着色層によって色彩豊かな抜き文字の金属光沢層
であり、かつ操作者が抜き文字の表示部を視認し易いキ
ーシートである。さらに、本発明は、図２に示すよう
に、抜き文字の透光性の着色層４を複数色にして釦毎に
異なる色とすることができる。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in more detail.
In the present invention, as shown in FIG. 1, a translucent colored layer 4 of a blank character is formed on the back surface of a resin film 1, a metallic gloss layer 5 is laminated on the back surface of the colored layer, and A resin film 1 having a display portion 2 of a blank character on which a colored layer 7 for a display portion is formed is a key sheet which is curved in the same shape as the upper surface side of a button made of resin and is integrated with the button. This is a key sheet that is a metallic glossy layer of the drawn characters that is rich in color by the translucent colored layer of the drawn characters and that allows the operator to easily view the display portion of the drawn characters. Further, according to the present invention, as shown in FIG. 2, the light-transmitting colored layer 4 of the blank character can be formed in a plurality of colors to have different colors for each button.
【００１３】本発明の金属光沢層は、鏡面状の金属光沢
がある金属や金属化合物によって形成され、材質は特に
限定されるものではないが、金属光沢層を蒸着する際に
比較的低温で蒸着できるアルミニウム、クロム等の金属
が好ましい。The metallic luster layer of the present invention is formed of a metal or a metal compound having a mirror-like metallic luster. The material is not particularly limited, but is deposited at a relatively low temperature when depositing the metallic luster layer. Preferred are metals such as aluminum and chromium.
【００１４】また、金属光沢層の光学濃度は、０．３５
以上が好ましく、光学濃度が０．３５未満では、鏡面状
の金属光沢がなくなる。光学濃度の範囲が０．３５〜２
の場合、金属光沢層も透光性の機能を有することにな
り、キーシートを裏面側から照光させた際、全面が明る
いキーシートとなる。なお、このときの抜き文字の表示
部とその周辺とでは透過光の色が異なるので、表示部の
視認性が損なわれることなく、カラフルな表示が得られ
る。The optical density of the metallic luster layer is 0.35
When the optical density is less than 0.35, the mirror-like metallic luster is lost. Optical density range of 0.35 to 2
In this case, the metallic gloss layer also has a light-transmitting function, and when the key sheet is illuminated from the back side, the entire surface becomes a bright key sheet. At this time, since the color of the transmitted light is different between the display portion of the blank character and the periphery thereof, a colorful display can be obtained without impairing the visibility of the display portion.
【００１５】本発明の光学濃度の定義は、試料に入射す
る投射光Ｌ０と、その試料を通過した透過光Ｌとの比で
ある透過率の逆数の常用対数で表わし、光学濃度と透過
率の関係は、次式に示す通りである。 光学濃度 Ｄ＝ｌｏｇ（Ｌ／Ｔ）＝ｌｏｇ（Ｌ０／ｌ） ・・（１）式 透過率 Ｔ＝Ｌ／Ｌ０ ・・（２）式 例えば、光学濃度Ｄが１の時は、透過率Ｔが０．１即ち
１０％となり、光学濃度が２の時は、透過率が０．０１
即ち１％となる。光学濃度が０．３５の時の透過率は約
４５％となる。The definition of the optical density according to the present invention is represented by the common logarithm of the reciprocal of the transmittance, which is the ratio of the projected light L 0 incident on the sample to the transmitted light L passing through the sample, and represents the optical density and the transmittance. Is as shown in the following equation. Optical density D = log (L / T) = log (L 0 / l) Expression (1) Transmittance T = L / L 0 Expression (2) For example, when the optical density D is 1, transmission is performed. When the rate T is 0.1, ie, 10%, and the optical density is 2, the transmittance is 0.01.
That is, it is 1%. When the optical density is 0.35, the transmittance is about 45%.
【００１６】本発明の抜き文字の透光性の着色層は、金
属光沢層が銀色であっても色彩豊かな鏡面を視認するこ
とができる。例えば、抜き文字の透光性の着色層の色彩
を、赤色、黄色、緑色、青色、紫色とすると、キーシー
トは、赤色メタリック調、金色メタリック調、緑色メタ
リック調、青色メタリック調、紫色メタリック調に夫々
視認することができる。The light-transmitting colored layer of the blank character according to the present invention allows a colorful mirror surface to be visually recognized even if the metallic gloss layer is silver. For example, if the color of the translucent colored layer of the blank character is red, yellow, green, blue, purple, the key sheet will be red metallic, gold metallic, green metallic, blue metallic, purple metallic Respectively.
【００１７】本発明の樹脂フィルムは、透明性に優れた
厚さ５０〜２００μmの樹脂フィルムが好ましい。キー
シートの表面が樹脂フィルム面になり、色彩豊かな表示
部が樹脂フィルムの裏面に存在するために、樹脂フィル
ムの透明性が要求され、ヘイズ（雲価：ＪＩＳ Ｋ ７１
０５準拠）は１５％以下が好ましく、材質は、透明性に
優れたポリエチレンテレフタレート樹脂フィルム、ポリ
カーボネート樹脂フィルム、ポリアミド樹脂フィルム、
もしくはこれらのうち少なくとも１種が含まれるアロイ
フィルム等が適している。The resin film of the present invention is preferably a resin film having excellent transparency and a thickness of 50 to 200 μm. Since the surface of the key sheet becomes a resin film surface and a colorful display portion is present on the back surface of the resin film, transparency of the resin film is required and haze (cloud value: JIS K71)
05 is preferably 15% or less, and the material is polyethylene terephthalate resin film, polycarbonate resin film, polyamide resin film,
Alternatively, an alloy film containing at least one of them is suitable.
【００１８】本発明の釦に用いられる樹脂は、樹脂フィ
ルムの湾曲変形内に成形できる樹脂であれば熱可塑性樹
脂でも熱硬化性樹脂でもかまわない。生産性を考慮する
と、射出成形により樹脂を充填して釦を一体成形するこ
とができる熱可塑性樹脂がよく、照光性のキーシートの
場合は、透明性のある熱可塑性樹脂であることが好まし
い。例えば、ポリエチレン樹脂、ポリプロピレン樹脂、
ポリスチレン樹脂、ポリカーボネート樹脂、ポリアクリ
ル酸樹脂、ポリメタクリル酸樹脂、ポリアミド樹脂等が
挙げられる。The resin used for the button of the present invention may be a thermoplastic resin or a thermosetting resin as long as it can be molded within the curve deformation of the resin film. In consideration of productivity, it is preferable to use a thermoplastic resin which can be molded integrally with the button by filling the resin by injection molding. In the case of an illuminating key sheet, it is preferably a transparent thermoplastic resin. For example, polyethylene resin, polypropylene resin,
Polystyrene resin, polycarbonate resin, polyacrylic acid resin, polymethacrylic acid resin, polyamide resin and the like can be mentioned.
【００１９】本発明のキーシートの製造方法は、表示部
を有する樹脂フィルムが、樹脂からなる釦の上面側と同
形状に湾曲し釦と一体化したキーシートの製造方法であ
って、離型フィルムに形成された離型層の上に、金属光
沢層を蒸着により形成し、その金属光沢層の上に抜き文
字の透光性の着色層を塗布により形成した後、着色層の
抜き文字内の金属光沢層をエッチングにより除去して抜
き文字の表示部を形成する。The method of manufacturing a key sheet according to the present invention is a method of manufacturing a key sheet in which a resin film having a display portion is curved in the same shape as the upper surface of a resin button and integrated with the button. On the release layer formed on the film, a metallic gloss layer is formed by vapor deposition, and on the metallic gloss layer, a translucent colored layer of a blank character is formed by coating, and then the inside of the colored layer is removed. Is removed by etching to form a blank character display portion.
【００２０】図３（１）に示すように、離型フィルム８
の上に形成された金属光沢層５と抜き文字の透光性の着
色層４との抜き文字の表示部２を、転写により樹脂フィ
ルム１に形成した後、図３（２）に示すように、抜き文
字の金属光沢層の裏面に表示部用着色層７を塗布により
形成する。次いで該樹脂フィルムを釦の上面側と同形状
に湾曲変形し、その湾曲変形内に射出成形により樹脂を
充填して釦３を一体成形するキーシートの製造方法であ
る。As shown in FIG. 3A, the release film 8
3 (2), after forming a display portion 2 of a drawn character of a metallic gloss layer 5 and a transparent colored layer 4 of the drawn character on the resin film 1 by transfer, as shown in FIG. Then, the coloring layer 7 for the display unit is formed on the back surface of the metallic gloss layer of the blank characters by coating. Next, a method for manufacturing a key sheet in which the resin film is curved and deformed into the same shape as the upper surface side of the button, the resin is filled by injection molding in the curved deformation, and the button 3 is integrally molded.
【００２１】本発明の金属光沢層の形成の方法は、真空
蒸着、イオンプレーティング、スパッタリングなどの物
理的蒸着法、粒子生成に熱・プラズマ化学反応を用いる
化学的蒸着法、粒子を溶液から析出させる電気メッキ、
プラズマ放電などを用いる溶射などの方法があり、層形
成の仕方も島状に成長するものや層状に成長するものが
ある。なかでも真空蒸着法によって金属光沢層を島状に
成長させることで、樹脂フィルムを所定形状に絞り加工
し熱可塑性樹脂と一体成形させる際、金属光沢層にはク
ラック、割れ等の外観上好ましくない不具合は生じなく
なる。The method for forming the metallic luster layer of the present invention includes a physical vapor deposition method such as vacuum vapor deposition, ion plating, and sputtering, a chemical vapor deposition method using a thermal / plasma chemical reaction for particle generation, and a method of depositing particles from a solution. Make electroplating,
There is a method such as thermal spraying using plasma discharge or the like, and a layer is formed in an island shape or in a layer shape. Above all, by growing the metallic gloss layer in an island shape by vacuum evaporation, when the resin film is drawn into a predetermined shape and integrally molded with the thermoplastic resin, the metallic gloss layer is not preferable in appearance such as cracks and cracks. No problems will occur.
【００２２】本発明の表示部は、金属光沢層をエッチン
グすることによって抜き文字に形成することができる。
エッチング方法として抜き文字の着色層を印刷して設け
てからアルカリ並びに酸水溶液に浸して抜き文字内の部
位の金属光沢層を除去する方法や、レーザーマーカー等
を用いて抜き文字内の部位を焼却する方法などが一般的
である。The display portion of the present invention can be formed into a blank character by etching the metallic gloss layer.
As a method of etching, a colored layer of the blank character is printed and provided, and then immersed in an aqueous alkali or acid solution to remove the metallic glossy layer in the portion of the blank character, or incinerated the portion in the blank character using a laser marker or the like. The method is generally used.
【００２３】以下に本発明を実施例を挙げて説明する。
なお、実施例に表現する樹脂フィルム、インクなどの全
ての部材は代表的なものであり、この限りではない。Hereinafter, the present invention will be described with reference to examples.
Note that all members such as resin films and inks described in the examples are representative ones, and are not limited thereto.
【実施例１】本発明の実施例１のキーシートの製造方法
を図４（１）〜（６）に示す。ポリエチレンテレフタレ
ート樹脂フィルムからなる離型フィルム８の表面のご
み、異物を完全に取り除き、離型層９を印刷した後、バ
ッチ式巻き取り蒸着機にてアルミニウム蒸着を行ない、
金属光沢層５を設けた。このとき金属光沢層の厚みは１
０ｎｍ〜２０ｎｍに調整すれば、光学濃度を０．３５〜
０．８５の範囲内にすることができる。Embodiment 1 FIGS. 4 (1) to 4 (6) show a method of manufacturing a key sheet according to Embodiment 1 of the present invention. After completely removing dust and foreign matter on the surface of the release film 8 made of a polyethylene terephthalate resin film and printing the release layer 9, aluminum deposition was performed by a batch-type wind-up evaporator.
A metallic gloss layer 5 was provided. At this time, the thickness of the metallic luster layer is 1
If adjusted to 0 nm to 20 nm, the optical density becomes 0.35
It can be in the range of 0.85.
【００２４】さらに金属光沢層の上に黄色の塩ビ酢ビ系
インクにて抜き文字の透光性の着色層４をスクリーン印
刷し、乾燥（８０℃×６時間以上）した。図４（１）に
示す。これを、１％水酸化カリウム水溶液に浸し、抜き
文字内の部位の金属光沢層を除去して、抜き文字の表示
部２を形成し、１％硫酸に浸し中和したあと精製水に浸
して洗浄し、十分に乾燥させた。図４（２）に示す。Further, a translucent colored layer 4 of the extracted characters was screen-printed on the metallic luster layer with a yellow vinyl chloride-vinyl acetate ink and dried (80 ° C. × 6 hours or more). It is shown in FIG. This is immersed in a 1% aqueous potassium hydroxide solution to remove the metallic luster layer in the area inside the blank letter, to form a blank display section 2, immersed in 1% sulfuric acid and neutralized, and then immersed in purified water. Washed and dried thoroughly. It is shown in FIG.
【００２５】抜き文字の表示部２を、厚さ１００μｍの
ポリカーボネート樹脂フィルム１に、熱及び圧力により
転写した。図４（３）に示す。その後、離型層９から離
型フィルム８を剥がした。図４（４）に示す。次に、抜
き文字の表示部を含め金属光沢層５の全面を覆うように
ウレタン系インクにて透光性の白色の表示部用着色層７
をスクリーン印刷した。図４（５）に示す。The display portion 2 of the blank characters was transferred to the polycarbonate resin film 1 having a thickness of 100 μm by heat and pressure. It is shown in FIG. Thereafter, the release film 8 was peeled off from the release layer 9. It is shown in FIG. Next, a translucent white display layer coloring layer 7 made of urethane-based ink is applied so as to cover the entire surface of the metallic gloss layer 5 including the blank character display section.
Was screen printed. It is shown in FIG.
【００２６】これを、表示部用着色層側が内側となるよ
うに圧縮成形金型で絞り加工して釦の上面側と同形状に
湾曲変形させた。図４（６）に示す。次いで、樹脂フィ
ルムの湾曲変形の凹みに、日精樹脂工業製射出成形機に
て熱可塑性樹脂であるポリカーボネート樹脂（「ユーピ
ロン」三菱エンジニアリングプラスチック製）を射出成
形し、樹脂フィルムと樹脂からなる釦３を一体成形させ
る。図５に示すような、所定形状で鏡面状の金色金属光
沢の抜き文字タイプのキーシートを得た。This was drawn with a compression molding die so that the colored layer side for the display portion was on the inside, and was curved and deformed into the same shape as the upper surface side of the button. It is shown in FIG. Next, a polycarbonate resin ("Iupilon" manufactured by Mitsubishi Engineering-Plastics Corporation), which is a thermoplastic resin, is injection-molded into the concave portion of the resin film by the injection molding machine manufactured by Nissei Plastic Industrial Co., Ltd. Integrally molded. As shown in FIG. 5, a key sheet of a character type with a predetermined shape and a mirror-like gold metallic luster was obtained.
【００２７】[0027]
【実施例２】本発明の実施例２のキーシートの製造方法
を図６（１）〜（６）に示す。実施例1と同様に、ポリ
エチレンテレフタレート樹脂フィルムからなる離型フィ
ルム８に、離型層９、金属光沢層５を設けた。そして金
属光沢層の上には実施例1とは異なり青色のウレタン系
インクにて抜き文字の透光性の着色層４をスクリーン印
刷し、乾燥（８０℃×６時間以上）した。図６（１）に
示す。Embodiment 2 FIGS. 6 (1) to 6 (6) show a method of manufacturing a key sheet according to Embodiment 2 of the present invention. As in Example 1, a release layer 9 and a metallic luster layer 5 were provided on a release film 8 made of a polyethylene terephthalate resin film. Then, on the metallic luster layer, unlike Example 1, a translucent colored layer 4 of a blank character was screen-printed with a blue urethane ink and dried (80 ° C. × 6 hours or more). As shown in FIG.
【００２８】これを、実施例1と同様に、抜き文字内の
部位の金属光沢層を除去し、洗浄し、十分に乾燥させ
た。図６（２）に示す。抜き文字の表示部を、予め接着
層１０を形成した厚さ１００μｍの無延伸のポリアミド
樹脂フィルム１に、熱及び圧力により転写した。図６
（３）に示す。その後、離型層９から離型フィルム８を
剥がした。図６（４）に示す。In the same manner as in Example 1, the metallic glossy layer at the portion within the blank character was removed, washed, and sufficiently dried. It is shown in FIG. The display part of the blank characters was transferred by heat and pressure to a 100 μm-thick unstretched polyamide resin film 1 on which the adhesive layer 10 was formed in advance. FIG.
It is shown in (3). Thereafter, the release film 8 was peeled off from the release layer 9. It is shown in FIG.
【００２９】次に、抜き文字の表示部を含め金属光沢層
５の全面を覆うようにウレタン系インクにて透光性の白
色の表示部用着色層７をスクリーン印刷した。図６
（５）に示す。これを、表示部用着色層側が内側となる
ように圧縮成形金型で絞り加工して釦の上面側と同形状
に湾曲変形させた。図６（６）に示す。Next, a translucent white coloring layer 7 for a display portion was screen-printed with a urethane-based ink so as to cover the entire surface of the metallic gloss layer 5 including the display portion of the blank characters. FIG.
It is shown in (5). This was drawn with a compression molding die so that the colored layer side for the display portion was on the inside, and was curved and deformed into the same shape as the upper surface side of the button. It is shown in FIG.
【００３０】次いで、樹脂フィルムの湾曲変形の凹み
に、日精樹脂工業製射出成形機にて熱可塑性樹脂である
ポリカーボネート樹脂（「ユーピロン」三菱エンジニア
リングプラスチック製）を射出成形し、樹脂フィルムと
樹脂からなる釦３を一体成形させる。図７に示すよう
な、所定形状で鏡面状の青色金属光沢の抜き文字タイプ
のキーシートを得た。Next, a polycarbonate resin ("Iupilon" manufactured by Mitsubishi Engineering-Plastic Corporation), which is a thermoplastic resin, is injection-molded into the concave portion of the resin film by the use of an injection molding machine manufactured by Nissei Plastic Industrial Co., Ltd. The button 3 is integrally molded. As shown in FIG. 7, a key sheet of a character type with a predetermined shape and a mirror-like blue metallic luster was obtained.
【００３１】[0031]
【発明の効果】本発明のキーシートの表示部は、樹脂フ
ィルムの裏面に抜き文字の透光性の着色層が形成され、
その着色層の裏面に金属光沢層が積層されているので、
樹脂フィルムと抜き文字の透光性の着色層を介して金属
光沢を視認するため、あらゆる色彩の鏡面状の金属光沢
を有する表示部を作成でき、しかもキーシートを低コス
トで具現化するものである。According to the present invention, the display portion of the key sheet according to the present invention has a translucent colored layer of punched characters formed on the back surface of the resin film.
Since the metallic gloss layer is laminated on the back of the colored layer,
Since the metallic luster is visually recognized through the resin film and the translucent colored layer of the blank characters, it is possible to create a display unit with a mirror-like metallic luster of all colors, and realize the key sheet at low cost. is there.
【００３２】さらにバックライトによる照光機能を損な
うことなく組み合わせることもできる。表示部用着色層
の色調を適宜に選定できるため表示部の視認性が高い。
金属光沢層は、樹脂フィルムの裏面に設けられており、
摩耗することがない。本発明の抜き文字の透光性の着色
層は、鏡面状の金属光沢の色彩を通常用いられているイ
ンキを印刷することで自在に具現化でき、また、キーシ
ート内に複数の色彩の金属光沢を有することが可能とな
り、デザイン性にも優れるものである。Further, they can be combined without impairing the illumination function of the backlight. The visibility of the display portion is high because the color tone of the coloring layer for the display portion can be appropriately selected.
The metallic gloss layer is provided on the back of the resin film,
No wear. The translucent colored layer of the blank character of the present invention can be embodied freely by printing an ink that is usually used in a mirror-like metallic luster color. It is possible to have gloss and to have excellent design.
【００３３】本発明のキーシートの製造方法は、抜き文
字の表示部を転写により樹脂フィルムに形成するもの
で、上記効果をもつキーシートを低コストで得ることが
できる製造方法である。The method of manufacturing a key sheet of the present invention is a method of forming a key sheet having the above-mentioned effects at low cost by forming a display portion of a blank character on a resin film by transfer.
【図１】本発明のキーシートの実施態様FIG. 1 shows an embodiment of a key sheet according to the present invention.
【図２】本発明のキーシートの別の実施態様FIG. 2 shows another embodiment of the key sheet of the present invention.
【図３】本発明のキーシートの製造方法FIG. 3 is a method for manufacturing a key sheet according to the present invention.
【図４】本発明の実施例１のキーシートの製造方法FIG. 4 is a method for manufacturing a key sheet according to the first embodiment of the present invention.
【図５】本発明の実施例１のキーシートの縦断面図FIG. 5 is a longitudinal sectional view of the key sheet according to the first embodiment of the present invention.
【図６】本発明の実施例２のキーシートの製造方法FIG. 6 is a method for manufacturing a key sheet according to a second embodiment of the present invention.
【図７】本発明の実施例２のキーシートの縦断面図FIG. 7 is a longitudinal sectional view of a key sheet according to a second embodiment of the present invention.
【図８】従来のキーシートFIG. 8 shows a conventional key sheet.
【図９】従来のキーシートFIG. 9 shows a conventional key sheet.
【図１０】従来のキーシートの製造方法FIG. 10 shows a conventional key sheet manufacturing method.
【図１１】従来のキーシートFIG. 11 shows a conventional key sheet.
【図１２】従来のキーシートの製造方法FIG. 12 shows a conventional key sheet manufacturing method.
１ 樹脂フィルム ２ 表示部 ３ 釦 ４ 抜き文字の透光性の着色層 ５ 金属光沢層 ６ 金属光沢層用着色層 ７ 表示部用着色層 ８ 離型フィルム ９ 離型層 １０ 接着層 １１ 抜き文字の印刷層 DESCRIPTION OF SYMBOLS 1 Resin film 2 Display part 3 button 4 Transparent colored layer of a blank character 5 Metallic gloss layer 6 Colored layer for a metallic gloss layer 7 Colored layer for a display unit 8 Release film 9 Release layer 10 Adhesive layer 11 Printing layer
Claims (5)
着色層が形成され、その着色層の裏面に金属光沢層が積
層された抜き文字の表示部を有する樹脂フィルムが、樹
脂からなる釦の上面側と同形状に湾曲し釦と一体化して
なるキーシート。1. A resin film having a display portion of a printed character in which a transparent colored layer of a drawn character is formed on the back surface of the resin film and a metallic gloss layer is laminated on the back surface of the colored layer, is made of resin. A key sheet that has the same shape as the top side of the button and is integrated with the button.
なることを特徴とする請求項１に記載のキーシート。2. The key sheet according to claim 1, wherein the translucent colored layer of the blank character has a plurality of colors.
ムに形成し、次いで該樹脂フィルムを釦の上面側と同形
状に湾曲変形し、その湾曲変形内に射出成形により樹脂
を充填して釦を一体成形することを特徴とするキーシー
トの製造方法。3. A display portion of a blank character is formed on a resin film by transfer, and then the resin film is curved and deformed into the same shape as the upper surface side of the button. A method for manufacturing a key sheet, comprising:
金属光沢層を蒸着により形成し、その金属光沢層の上に
抜き文字の透光性の着色層を塗布により形成した後、着
色層の抜き文字内の金属光沢層をエッチングにより除去
して抜き文字の表示部を形成し、該抜き文字の表示部を
樹脂フィルムに転写することを特徴とする請求項３に記
載のキーシートの製造方法。4. On a release layer formed on a release film,
After forming a metallic luster layer by vapor deposition, forming a transparent colored layer of a blank character on the metallic luster layer by coating, removing the metallic gloss layer in the colored layer by etching and removing the metallic luster layer by etching 4. The method of manufacturing a key sheet according to claim 3, wherein a display portion of the key sheet is formed, and the display portion of the blank character is transferred to a resin film.
して樹脂フィルムに転写することを特徴とする請求項３
あるいは４に記載のキーシートの製造方法。5. The method according to claim 3, wherein the display portion of the blank character is transferred to a resin film via a light-transmitting adhesive layer.
Alternatively, the method for manufacturing a key sheet according to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000168932A JP4485019B2 (en) | 2000-06-06 | 2000-06-06 | Key sheet manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000168932A JP4485019B2 (en) | 2000-06-06 | 2000-06-06 | Key sheet manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001351458A true JP2001351458A (en) | 2001-12-21 |
| JP4485019B2 JP4485019B2 (en) | 2010-06-16 |
Family
ID=18671870
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000168932A Expired - Fee Related JP4485019B2 (en) | 2000-06-06 | 2000-06-06 | Key sheet manufacturing method |
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| Country | Link |
|---|---|
| JP (1) | JP4485019B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030056830A (en) * | 2001-12-28 | 2003-07-04 | 주식회사 유일전자 | Keypad using metallized film and a method for manufacturing the same |
| KR100751943B1 (en) | 2006-03-28 | 2007-08-24 | 엘지전자 주식회사 | Facing case and mobile terminal having the same |
| KR100786157B1 (en) | 2006-10-23 | 2007-12-21 | 엘지전자 주식회사 | Button apparatus and mobile device having the same |
| KR100793833B1 (en) | 2006-07-14 | 2008-01-11 | (주)모던테크 | Keypad of mobile phone and method thereof |
| KR100820750B1 (en) | 2006-07-14 | 2008-04-10 | (주)모던테크 | Navigation Key of Mobile Phone and Method thereof |
| KR100820749B1 (en) | 2006-07-14 | 2008-04-10 | (주)모던테크 | Keypad of Mobile Phone and Method thereof |
| KR101405497B1 (en) * | 2008-10-22 | 2014-06-27 | 삼성전자주식회사 | Visual design display device |
-
2000
- 2000-06-06 JP JP2000168932A patent/JP4485019B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030056830A (en) * | 2001-12-28 | 2003-07-04 | 주식회사 유일전자 | Keypad using metallized film and a method for manufacturing the same |
| KR100751943B1 (en) | 2006-03-28 | 2007-08-24 | 엘지전자 주식회사 | Facing case and mobile terminal having the same |
| KR100793833B1 (en) | 2006-07-14 | 2008-01-11 | (주)모던테크 | Keypad of mobile phone and method thereof |
| KR100820750B1 (en) | 2006-07-14 | 2008-04-10 | (주)모던테크 | Navigation Key of Mobile Phone and Method thereof |
| KR100820749B1 (en) | 2006-07-14 | 2008-04-10 | (주)모던테크 | Keypad of Mobile Phone and Method thereof |
| KR100786157B1 (en) | 2006-10-23 | 2007-12-21 | 엘지전자 주식회사 | Button apparatus and mobile device having the same |
| KR101405497B1 (en) * | 2008-10-22 | 2014-06-27 | 삼성전자주식회사 | Visual design display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4485019B2 (en) | 2010-06-16 |
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