JPH0723371U - Illuminated letter parts - Google Patents
Illuminated letter partsInfo
- Publication number
- JPH0723371U JPH0723371U JP5313093U JP5313093U JPH0723371U JP H0723371 U JPH0723371 U JP H0723371U JP 5313093 U JP5313093 U JP 5313093U JP 5313093 U JP5313093 U JP 5313093U JP H0723371 U JPH0723371 U JP H0723371U
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- Prior art keywords
- resin
- molded product
- illuminated
- laser
- coating
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- 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.)
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- Illuminated Signs And Luminous Advertising (AREA)
Abstract
(57)【要約】 （修正有）
【目的】輝度のバラツキや影、表示線の切れめやウエル
ドが無く、金型コストが安価な照光文字部品を提供す
る。
【構成】カーボンブラックまたは金属単体、これら金属
のアロイ、その酸化物等の単独もしくは混合物の微粒子
を含む、１成分または２成分以上からなる反応硬化性樹
脂〔図1(a)、(b)の18〕を粘度１〜３，５００cpで金型内
の樹脂成形品〔図1 (b) の19〕に被覆し反応硬化させ、
これにレーザで、任意の表示をマーキングしてなる照光
文字部品。
(57) [Summary] (Correction) [Purpose] To provide an illuminated character part that is free of variations in brightness, shadows, cuts in the display line, and welds, and has a low die cost. [Structure] A reaction curable resin composed of one component or two or more components containing fine particles of carbon black or a simple substance of metal, alloys of these metals, oxides thereof, etc. alone or in mixture [see FIGS. 18] with a viscosity of 1 to 3,500 cp on a resin molded product in a mold [19 in Fig. 1 (b)] and cured by reaction,
Illuminated character parts made by marking arbitrary markings with a laser.
Description
【０００１】[0001]
本考案は自動車内などの電装スイッチやプッシュホン、あるいは各種入力装置 などに装備される照光文字部品に関するものである。 The present invention relates to an illuminated character part mounted on an electric switch, a touch-tone telephone, or various input devices such as an automobile.
【０００２】[0002]
従来の照光表示部品は、図３（ａ）にその平面図、図３（ｂ）にその断面図で 示すような白色透光性の樹脂成形品10、あるいは図４（ａ）、（ｂ）のような透 明樹脂成形品11に、白色透光性塗料12をコーティングしたものに、遮光性の塗料 13をスプレー塗装、スクリーン印刷、あるいはタンポ印刷等の方法でコーティン グし、レーザで成形品の表面が露出するまで「Ａ」などの任意の記号、符号、絵 柄などの表示14を抜き加工して照光表示部を設けたもの、あるいは図５（ａ）， （ｂ）における遮光性の樹脂（２次側）15と白色透光性の樹脂（１次側）16を用 い、二色射出成形で照光表示部を形成したものが知られている。 The conventional illuminated display component is a white translucent resin molded product 10 as shown in a plan view of FIG. 3 (a) and a sectional view of FIG. 3 (b), or in FIGS. 4 (a) and 4 (b). A transparent resin molded product 11 like that coated with white translucent paint 12 is coated with a light-shielding paint 13 by spray coating, screen printing, or tampo printing, and the molded product is then laser-coated. The display 14 of any symbol, code, pattern, etc., such as “A”, is processed by punching out until the surface of the product is exposed, or the illumination display part is provided, or the light-shielding property in FIGS. 5 (a) and 5 (b) It is known that a resin (secondary side) 15 and a white translucent resin (primary side) 16 are used to form an illumination display part by two-color injection molding.
【０００３】[0003]
上記従来の表示部品で、図３、図４に示す遮光性の塗料13をコーティングした ものは、塗膜厚のバラツキが大きいため、レーザの抜き加工精度が低く、塗膜の 抜き残り、あるいは下地に設けた白色透光性塗料12からなる塗膜の抜き過ぎなど により、照光時に輝度がばらついた。 The above conventional display parts coated with the light-shielding paint 13 shown in FIGS. 3 and 4 have large variations in the coating film thickness, so the laser cutting precision is low, and the coating film is left uncut, or the substrate Brightness varied during illumination due to excessive removal of the coating film consisting of the white translucent paint 12 provided in.
【０００４】 また、図５に示す二色射出成形のものは、遮光層まで白色透光性の樹脂を露出 する必要から、必然的にこの部分16の肉厚があつくなり、照光時に輝度が暗くな るうえ、必ず表示を囲むように遮光性の樹脂15を回し込むため、表示の周囲にウ エルド17が発生しやすい。また、Ａ文字のように連続した線で閉区画を有する表 示の場合、白色透光性の樹脂16の内側に遮光性の樹脂15を回す必要から、線の途 中が切れた表示（図３ａ）になり、照光文字の裏側から橋状に遮光性の樹脂を回 しても、照光時に文字に影ができた。 更に、同一形状で表示のみが異なる部品の場合でも、表示に合わせて一次側の 金型をいくつも製作する必要が生じ、コスト的に不利であった。Further, in the two-color injection molding shown in FIG. 5, since it is necessary to expose the white translucent resin up to the light-shielding layer, the thickness of this portion 16 is inevitably increased, and the brightness becomes dark when illuminated. In addition, since the light-shielding resin 15 is always circulated so as to surround the display, a weld 17 is likely to be generated around the display. Also, in the case of a display having a closed section with continuous lines such as the letter A, it is necessary to turn the light-shielding resin 15 inside the white translucent resin 16, so the display of broken lines (Fig. 3a), and even when the light-shielding resin was turned like a bridge from the back side of the illuminated letters, a shadow was formed on the letters when illuminated. Further, even in the case of parts having the same shape but different only in the display, it is necessary to manufacture several dies on the primary side according to the display, which is disadvantageous in terms of cost.
【０００５】[0005]
本考案は、上記従来の技術上の問題点を解決するものであり、照光文字の輝度 のバラツキや影、表示線の切れ目やウエルドが無く、金型コストが安価な照光文 字部品を提供することを課題とする。 The present invention solves the above-mentioned problems in the conventional technology, and provides an illuminated character part that is inexpensive in mold cost, without variations in brightness of illuminated characters, shadows, and breaks and welds in display lines. This is an issue.
【０００６】 即ち、本考案は、カーボンブラック、金属、これら金属のアロイ、その酸化物 等から選ばれた単独もしくは混合微粒子を含む、１成分または２成分以上からな る反応硬化性樹脂を、粘度１〜3,500cp の状態下で、金型内の樹脂成形品に被覆 し反応硬化させ、これにレーザで、任意の表示をマーキングしてなる照光文字部 品を提供するものである。That is, the present invention provides a reaction curable resin comprising one component or two or more components, containing single or mixed fine particles selected from carbon black, metals, alloys of these metals, oxides thereof, etc. Under the condition of 1 to 3,500 cp, the resin molded product in the mold is coated and reacted and cured, and the laser is provided with an illuminated character part which is marked with an arbitrary indication.
【０００７】 以下、本考案について詳しく説明する。 本考案に用いられる樹脂成形品の材料は、照光文字部品に要求される耐熱性、 機械的強度などを考慮し、ＡＢＳ樹脂、ＡＳ樹脂、アクリル樹脂、塩化ビニル樹 脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、ポリブチレンテ レフタレート樹脂、ポリアセタール樹脂、ポリフェニレンスルフィド樹脂、ポリ アミド樹脂、フェノール樹脂、アミノ樹脂、エポキシ樹脂、ポリウレタン樹脂等 のプラスチック、あるいはポリウレタン系、ポリエステル系、ポリスチレン系、 ポリブタジエン系、塩化ビニル系、酢酸ビニル系、アクリル系、ポリイソプレン 系、オレフィン系、ポリアミド系、シリコーン系のエラストマー、あるいはこれ ら２種以上のブレンド体、アロイから、好ましくは照光時の輝度を考慮して全光 線透過率（以下Ｔｔと略称する）５％以上のものが選択され、これには必要に応 じて任意の着色剤をＴｔ５％以上が保たれる限り混合しても良い。Hereinafter, the present invention will be described in detail. The material of the resin molded product used in the present invention is ABS resin, AS resin, acrylic resin, vinyl chloride resin, polycarbonate resin, polyethylene terephthalate resin in consideration of heat resistance and mechanical strength required for illuminated character parts. , Plastics such as polybutylene terephthalate resin, polyacetal resin, polyphenylene sulfide resin, polyamide resin, phenol resin, amino resin, epoxy resin, polyurethane resin, polyurethane type, polyester type, polystyrene type, polybutadiene type, vinyl chloride type, vinyl acetate Total light transmittance (hereinafter referred to as the total light transmittance from the following: t and are selected those that abbreviated) 5% or more, this may be mixed as long as is maintained is Tt5% or more optional colorants as needed it is.
【０００８】 着色剤のうち特に白色系の着色剤については、酸化チタン、ジンククロメート 、モリブデンホワイト、硫化亜鉛、硫化バリウム、炭酸カルシウム、シリカなど の無機顔料が好適であるが、着色力、コスト面などから酸化チタンが好ましく、 その他の白色系以外の着色剤を混合して色相、彩度をＴｔ５％以上が保たれる限 り付与しても構わない。Among the colorants, particularly for white colorants, inorganic pigments such as titanium oxide, zinc chromate, molybdenum white, zinc sulfide, barium sulfide, calcium carbonate, silica and the like are suitable, but in terms of coloring power and cost. From the above reasons, titanium oxide is preferable, and other coloring agents other than white type may be mixed to impart the hue and saturation as long as Tt is 5% or more.
【０００９】 これら材料は射出成形、押し出し成形、あるいはプレス成形等により任意の形 状に成形され、照光文字部品の基体となる樹脂成形品となる。These materials are molded into an arbitrary shape by injection molding, extrusion molding, press molding, or the like, and become a resin molded product that is a base of the illuminated character part.
【００１０】 樹脂成形品に被覆する反応硬化性樹脂は、１成分もしくは２成分以上からなり 反応硬化する樹脂であれば特に制限はないが、これで被覆する樹脂成形品との密 着性を考慮することが重要で、ポリウレタン樹脂、エポキシ樹脂、ウレア樹脂、 ポリアミド樹脂、不飽和ポリエステル樹脂、ポリジシクロペンタジエン樹脂、ア クリラメート樹脂、イソシアヌレート樹脂、シリコーン樹脂等のうちから選ばれ る１種もしくは２種以上の混合体、あるいはアロイに、必要に応じてエラストマ ー成分等をブレンドさせたものから適宜選択する。The reaction curable resin with which the resin molded product is coated is not particularly limited as long as it is a resin which is composed of one component or two or more components and is reactively cured, but the adhesiveness with the resin molded product coated with this is taken into consideration. Is one or two selected from polyurethane resin, epoxy resin, urea resin, polyamide resin, unsaturated polyester resin, polydicyclopentadiene resin, acrylate resin, isocyanurate resin, silicone resin, etc. It is appropriately selected from the above-mentioned mixture or alloy in which an elastomer component or the like is blended if necessary.
【００１１】 この反応硬化性樹脂に反応開始剤、架橋剤、触媒、促進剤、鎖伸長剤、発泡剤 、あるいは酸化防止剤や紫外線吸収剤等の老化防止剤、整泡剤、増粘剤、内部剥 離型剤等の助剤や添加剤を添加して、樹脂成形品に被覆して硬化させた後の物性 、あるいは被覆する際の作業性の向上をはかることは差し支えない。This reaction curable resin contains a reaction initiator, a crosslinking agent, a catalyst, an accelerator, a chain extender, a foaming agent, an antioxidant such as an antioxidant or an ultraviolet absorber, a foam stabilizer, a thickener, An auxiliary agent such as an internal release agent or an additive may be added to improve the physical properties after coating and curing the resin molded product, or the workability in coating.
【００１２】 反応硬化性樹脂は、後述するレーザ加工性を考慮して、好ましくは厚さ５〜 2 00μｍで金型内の樹脂成形品に被覆し反応硬化させることから、高流動性の状態 、すなわち粘度１〜3,500cp 、好ましくは５〜1,000cp と比較的低粘度であるこ とが必要で、常温で 3,500cpを超すものについては、撹拌あるいは加熱し低粘度 化する必要がある。 また、反応硬化性樹脂が２成分以上からなる場合、各成分が同等の粘度である 方が、ミキシングヘッド等で混合する際良く混合するので好ましい。The reaction-curable resin is preferably in a high fluidity state because it is coated with a resin molded product in a mold with a thickness of 5 to 200 μm and reacted and cured in consideration of laser processability described later. That is, it is necessary to have a relatively low viscosity of 1 to 3,500 cp, preferably 5 to 1,000 cp, and for those having a viscosity of more than 3,500 cp at room temperature, it is necessary to lower the viscosity by stirring or heating. Further, when the reaction curable resin is composed of two or more components, it is preferable that the respective components have the same viscosity, since they are well mixed when they are mixed with a mixing head or the like.
【００１３】 この反応硬化性樹脂にはレーザに対する十分な吸収性と可視光に対する遮光性 を付与するため後述する微粒子を含ませる。特にレーザで抜き加工する際、抜き ムラが生じないように、微粒子は硬化性樹脂中に良く均一に分散することが必要 で、硬化性樹脂中への各種カップリング剤の添加や微粒子への−ＯＨ基、−ＣＯ ＯＨ基等の官能基付与あるはカップリング剤、オゾン、紫外線等による微粒子の 表面処理をすることが望ましい。The reaction-curable resin contains fine particles to be described later in order to impart sufficient absorbability to laser and light-shielding property to visible light. In particular, it is necessary to disperse the fine particles well and evenly in the curable resin so as to prevent uneven cutting during laser processing. Addition of various coupling agents to the curable resin and It is desirable to surface-treat the fine particles with a functional group such as an OH group or a —COOH group, or with a coupling agent, ozone, ultraviolet rays, or the like.
【００１４】 本考案に用いられる微粒子について説明すると、カーボンブラックは、ファー ネスブラック、チャンネルブラック、ケッチェンブラック、アセチレンブラック 、あるいはグラファイトに、好ましくは前記表面処理を施した、平均粒径10〜10 0nm の１種あるいは２種以上の混合微粒子、もしくはクロム、コバルト、鉄、ニ ッケル、アルミニウム、亜鉛、錫、テルル、マグネシウム、タングステン、バナ ジウム、モリブデン等から選ばれる平均粒径10〜1,000nm の金属単体、アロイあ るいは酸化物の単独もしくは混合物の微粒子、もしくは前記カーボンブラックと の混合微粒子から選べば良いが、金属系の微粒子を混合する場合、ポットライフ が変動しないように、硬化反応系への触媒作用の有無について十分に注意する必 要がある。Explaining the fine particles used in the present invention, carbon black is furnace black, channel black, Ketjen black, acetylene black, or graphite, preferably the above-mentioned surface treatment, and having an average particle size of 10 to 10 One or two or more kinds of mixed fine particles having an average particle diameter of 10 to 1,000 nm selected from chromium, cobalt, iron, nickel, aluminum, zinc, tin, tellurium, magnesium, tungsten, vanadium, molybdenum, etc. It may be selected from fine particles of metal alone, alloy or oxide alone or a mixture, or fine particles mixed with the above carbon black.When mixing fine particles of a metal system, the curing reaction system should be adjusted so that the pot life does not change. It is necessary to pay sufficient attention to the presence or absence of catalytic action on .
【００１５】 微粒子は、レーザに対する十分な吸収性、反応硬化性樹脂への分散性あるいは 硬化性樹脂の被覆後の物性等を考慮し、硬化性樹脂１００重量部に対して 0.5〜 50重量部、好ましくは３〜20重量部添加して良く混練する。The fine particles are 0.5 to 50 parts by weight with respect to 100 parts by weight of the curable resin in consideration of sufficient absorptivity to laser, dispersibility in a reaction curable resin, physical properties after coating of the curable resin, and the like. It is preferable to add 3 to 20 parts by weight and knead well.
【００１６】 この反応硬化性樹脂を必要に応じては、撹拌あるいは加熱して粘度１〜3,500c p 、好ましくは５〜1,000cp と低粘度の状態下で、好ましくは圧力５〜1,000kg/ cm2 、より好ましくは20〜800kg/cm2 の圧力下で既設のゲートから金型内に圧入 し、インサート成形、あるいは二色成形の要領で、樹脂成形品の所定面を被覆す るように成形し反応硬化させる。この際、反応開始あるいは反応促進のため、金 型を加温して硬化反応系に熱エネルギーを加えてもよい。圧力範囲を、５kg/cm2 以上とすると未充填を生じることがなく、 1,000kg/cm2以下だとバリが発生しな いので、圧力管理に留意するのが良い。If necessary, the reaction curable resin is stirred or heated to have a low viscosity of 1 to 3,500 cp, preferably 5 to 1,000 cp, and preferably a pressure of 5 to 1,000 kg / cm 2. More preferably, it is pressed into the mold from an existing gate under a pressure of 20 to 800 kg / cm2, and molded by insert molding or two-color molding so as to cover the prescribed surface of the resin molded product. React and cure. At this time, in order to start or accelerate the reaction, the mold may be heated to apply heat energy to the curing reaction system. When the pressure range is 5 kg / cm 2 or more, no filling occurs, and when it is 1,000 kg / cm 2 or less, burrs do not occur, so it is good to pay attention to pressure control.
【００１７】 被覆は、後述するレーザ加工の際、熱吸収により加工部周囲が過度に溶融しな いようにより薄く形成して、短時間のレーザ照射で抜き加工できるようにするこ とが望ましく、片側の型に圧力をかけながら被覆を薄く形成し、反応硬化させる 方法、あるいは金型内を真空にして薄い被覆の形成をしやすくする方法等は非常 に有効で、特に、粘度 1,000cpを超す比較的高粘度の反応硬化性樹脂による被覆 成形には効果的である。It is desirable that the coating is formed thin so that the periphery of the processed portion does not excessively melt due to heat absorption during laser processing described later, and can be punched by laser irradiation for a short time. It is very effective to apply a pressure on one side of the mold to form a thin coating and then to cure it, or to vacuum the inside of the mold to facilitate the formation of a thin coating. It is effective for coating molding with a reaction curable resin of relatively high viscosity.
【００１８】 尚、被覆の厚さは遮光性を損わない限り特に制限はないが、５〜２００μｍ、 好ましくは10〜50μｍとするのがよい。薄過ぎるとレーザ加工に対する機械的強 度が不十分で被覆層が剥離しやすく、厚過ぎると加工時間が長くなりやすく、著 しく生産性が低下するからである。The thickness of the coating is not particularly limited as long as the light-shielding property is not impaired, but the thickness is preferably 5 to 200 μm, and more preferably 10 to 50 μm. This is because if the thickness is too thin, the mechanical strength against laser processing is insufficient and the coating layer is easily peeled off, and if it is too thick, the processing time tends to be long and the productivity is significantly reduced.
【００１９】 次いで、ビームスキャニング式、マスク像マーク式、あるいはこれらの複合式 の照射方式によるＹＡＧレーザ、ＣＯ2 レーザ、エキシマレーザ、あるいはアレ キサンドライトレーザ等のレーザを用い、内側の樹脂成形品の表面が露出するよ うに被覆に任意の表示をマーキングし、本考案の照光文字部品を得ることができ る。 これらのレーザのうち特にＹＡＧレーザは、微粒子を含まない樹脂成形品には 殆ど吸収されず、微粒子によく吸収されるので、微粒子を含む被覆にマーキング するのに好適である。Then, a laser such as a YAG laser, a CO 2 laser, an excimer laser, or an alexandrite laser by a beam scanning type, a mask image mark type, or a combination type of these types is used to form an inner resin molded product. The illuminated character parts of the present invention can be obtained by marking an arbitrary indication on the coating so that the surface of is exposed. Of these lasers, the YAG laser is particularly suitable for marking a coating containing fine particles because it is hardly absorbed by the resin molded product containing no fine particles and is well absorbed by the fine particles.
【００２０】[0020]
本考案は、粘度１〜3,500cp 、好ましくは５〜1,000cp と比較的低粘度の状態 下で高流動性の反応硬化性樹脂を被覆のベース樹脂とし、好ましくは圧力20〜1, 000kg/cm2 で既設のゲートから金型内に圧入して、インサートしてある樹脂成形 品の所定面を被覆するように形成し反応硬化させてなるものであり、従来のコー ティング法で形成して得られるコーティング層とほぼ同程度の薄い被覆を高精度 の厚さで形成することで、被覆のレーザ抜き加工精度を著しく向上させている。 更に、文字／表示はレーザでマーキングするので、二色射出成形で形成する際、 発生しやすい文字／表示のウエルドは無く、連続した文字／表示になり、樹脂成 形品の照光文字を設ける部分の厚さも薄くできるので、輝度の低下は抑えられる 。また、同一形状の成形品で照光表示部のみが異なる部品の場合でも、表示に合 わせていくつも金型を製作することなく、レーザで任意の表示をマーキングする ことが可能となり、コスト的に有利である。The present invention uses a reaction curable resin having a high fluidity as a base resin for coating under a relatively low viscosity of 1 to 3,500 cp, preferably 5 to 1,000 cp, and preferably a pressure of 20 to 1,000 kg / cm. It is formed by press-fitting into the mold from the existing gate in 2 and forming it so as to cover the prescribed surface of the resin molded product that has been inserted and then curing it by reaction, which is obtained by the conventional coating method. By forming a thin coating with almost the same thickness as the coating layer to be formed with a high precision thickness, the precision of the laser cutting process of the coating is significantly improved. Further, since the characters / displays are marked by laser, there are no welds of characters / displays that are likely to occur when forming by two-color injection molding, and continuous characters / displays are provided, where the illuminated characters of resin molded products are provided. Since the thickness of can be made thin, the decrease in brightness can be suppressed. In addition, even if the parts have the same shape and differ only in the illumination display part, it is possible to mark any display with the laser without making several molds to match the display, which is cost effective. It is advantageous.
【００２１】[0021]
実施例１ 透明なポリカーボネート樹脂１００重量部に粒径０．４μｍの酸化チタンと粒 径６μｍの二酸化けい素（シリカ）を、各々４重量部、 0.3重量部添加し良く分 散させた樹脂配合物を、射出成形機を用い、温度 290℃に加熱し、射出圧力 1 ,000kg/cm2で85℃に温度調節した金型内に射出し、照光文字を設ける部分の厚さ が 0.9mmの樹脂成形品を成形した。 次いで、反応射出成形機（RIM : Reaction Injection Molding）を用い、40℃ に加温して粘度 300cpとなったポリエーテルポリオール系樹脂に、平均粒径15nm のカーボンブラックを５重量％、触媒として有機錫化合物を0.02重量％添加した Ａ成分と、40℃に加温して粘度 250cpとなったＭＤＩ（メチレンジイソシアネー ト）系樹脂からなるＢ成分を、シリンダーポンプで重量比１：１に計量し、圧力 100kg/cm2でミキシングヘッド中に吐出し衝突混合したものを、プランジャー式 ポンプで、圧力 100kg/cm2で、85℃に調節した金型内に注入し、インサートして ある樹脂成形品を被覆し反応硬化させ遮光層18（図４）を形成した。 これに、マスク式ＹＡＧレーザマーカーを用い、樹脂成形品の表面が露出する ように、被覆に白色透光性の「Ａ／Ｃ」なる文字をマーキングし、図１（ａ）、 （ｂ）に示す照光文字部品を得た。Example 1 A resin composition in which 4 parts by weight and 0.3 part by weight of titanium oxide having a particle size of 0.4 μm and silicon dioxide (silica) having a particle size of 6 μm were added to 100 parts by weight of a transparent polycarbonate resin and dispersed well. Was heated to 290 ° C using an injection molding machine and injected into a mold whose temperature was adjusted to 85 ° C at an injection pressure of 1,000 kg / cm 2 , and the thickness of the portion where the illuminated characters were set was 0.9 mm. A molded product was molded. Then, using a reaction injection molding machine (RIM: Reaction Injection Molding), 5% by weight of carbon black having an average particle size of 15 nm and 5% by weight of an organic solvent as a catalyst were added to a polyether polyol resin having a viscosity of 300 cp when heated to 40 ° C. A component containing 0.02% by weight of tin compound and a component B consisting of MDI (methylene diisocyanate) resin whose viscosity became 250 cp when heated to 40 ° C were weighed with a cylinder pump at a weight ratio of 1: 1. Then, the mixture was discharged into the mixing head at a pressure of 100 kg / cm 2 and collided and mixed, and it was injected into the mold adjusted to 85 ° C with a plunger type pump at a pressure of 100 kg / cm 2 , and the resin was inserted. The molded product was coated and reaction-cured to form a light-shielding layer 18 (FIG. 4). Using a mask-type YAG laser marker, white translucent "A / C" characters were marked on the coating so that the surface of the resin molded product was exposed, as shown in Figs. 1 (a) and (b). The illuminated letter part shown is obtained.
【００２２】 実施例２ 乳白色のＡＢＳ樹脂１００重量部に、粒径 0.4μｍの酸化チタン、粒径６μｍ の二酸化けい素（シリカ）、銅フタロシアニンブルーを各々２重量部、 0.3重量 部、２重量部添加し良く分散させた樹脂配合物を、射出成形機を用い、温度 2 60℃に加熱し、射出圧力 900kg/cm2で65℃に調節した金型内に射出し、照光文字 を設ける部分の厚さが 1.0mmの樹脂成形品を成形した。 次いで、平均粒径10nmのグラファイトを５重量部、メタリック調になるよう平 均粒径７μｍの鱗片状アルミニウムを１重量部混合したエポキシ樹脂１００重量 部を１００℃に加熱し、粘度１０００cpに調整したＡ成分と、粘度18cpの脂肪族 ポリアミン系硬化剤にイミダゾール系硬化促進剤を 0.8重量％加えたＢ成分を、 シリンダーポンプで重量比10：１に計量、チャンバー内に注入し、ダイナミック ミキサーで混合しながら圧力 100kg/cm2で、 100℃に温調した金型内に注入して 、インサートしてある樹脂成形品を被覆し反応硬化させ、厚さ30μｍの遮光層20 〔図２（ａ），（ｂ）参照〕を形成した。 これに、スキャニング式ＣＯ2 レーザマーカーを用い、樹脂成形品の表面が露 出するように、被覆に青色透光性の矢印の表示をマーキングし、図２（ａ）、（ ｂ）に示すような照光文字部品を得た。Example 2 100 parts by weight of milk-white ABS resin, 2 parts by weight, 0.3 part by weight and 2 parts by weight of titanium oxide having a particle size of 0.4 μm, silicon dioxide (silica) having a particle size of 6 μm, and copper phthalocyanine blue, respectively. The resin mixture that was added and well dispersed was heated to a temperature of 260 ° C using an injection molding machine and injected into a mold adjusted to 65 ° C with an injection pressure of 900 kg / cm 2 to produce the illuminated characters. A resin molded product with a thickness of 1.0 mm was molded. Next, 5 parts by weight of graphite having an average particle size of 10 nm and 100 parts by weight of an epoxy resin mixed with 1 part by weight of aluminum flakes having an average particle size of 7 μm so as to give a metallic tone were heated to 100 ° C. to adjust the viscosity to 1000 cp. Component A and component B, which is an aliphatic polyamine-based curing agent with a viscosity of 18 cp and 0.8% by weight of imidazole-based curing accelerator, are weighed with a cylinder pump at a weight ratio of 10: 1, injected into the chamber, and mixed with a dynamic mixer. While injecting it into a mold whose temperature was controlled to 100 ° C at a pressure of 100 kg / cm 2 , the resin molded product that had been inserted was coated and reacted and cured, and the light-shielding layer 20 with a thickness of 30 μm [Fig. 2 (a)] , (B)] is formed. Using a scanning CO 2 laser marker, the coating is marked with a blue translucent arrow so that the surface of the resin molded product is exposed, and as shown in FIGS. 2 (a) and 2 (b). I got the illuminated letter parts.
【００２３】[0023]
本考案の照光文字部品は、照光時の輝度のバラツキや影、表示部の切れ目やウ エルドが無く、外観に優れ且つ品質レベルの高いものであり、また、材料に有機 溶剤を全く使用しないので、ＶＯＣ（揮発性有機化合物）規制の高まるなか、安 全性の面でも優れた製品である。 The illuminated character parts of the present invention have no unevenness in brightness or shadows during illumination, no breaks or welds in the display section, have an excellent appearance, and have a high quality level.Because no organic solvent is used as a material, It is also an excellent product in terms of safety amid increasing regulations on VOC (volatile organic compounds).
【図１】（ａ）本考案の照光文字部品の一例を示す正面
図。（ｂ）Ｘ−Ｙ断面図。FIG. 1A is a front view showing an example of an illuminated character part of the present invention. (B) XY sectional drawing.
【図２】（ａ）本考案の照光文字部品の一例を示す正面
図。（ｂ）Ｘ−Ｙ断面図。FIG. 2 (a) is a front view showing an example of an illuminated character part of the present invention. (B) XY sectional drawing.
【図３】（ａ）従来の照光表示部品の一例を示す正面図
（ｂ）Ｘ−Ｙ断面図。FIG. 3A is a front view showing an example of a conventional illuminated display component, and FIG. 3B is an XY sectional view.
【図４】（ａ）従来の照光表示部品の一例を示す正面
図。（ｂ）Ｘ−Ｙ断面図。FIG. 4A is a front view showing an example of a conventional illuminated display component. (B) XY sectional drawing.
【図５】（ａ）従来の照光表示部品の一例を示す正面
図。（ｂ）Ｘ−Ｙ断面図。FIG. 5A is a front view showing an example of a conventional illuminated display component. (B) XY sectional drawing.
10． 白色透光性の樹脂成形品、 11． 透明樹脂成形品、 12． 白色透光性塗料、 13． 遮光性塗料、 14． 照光文字、 15． 遮光性樹脂、 16． 白色透光性樹脂、 17． ウエルド、 18． 遮光層、 19.21.樹脂成形品、 20． 遮光層。 Ten. White translucent resin molded product, 11. Transparent resin molded product, 12. White translucent paint, 13. Light-shielding paint, 14. Illuminated letters, 15. Light-shielding resin, 16. White translucent resin, 17. Weld, 18. Light-shielding layer, 19.21. Resin molded product, 20. Light-shielding layer.
Claims (1)
のアロイ、その酸化物等から選ばれた単独もしくは混合
物の微粒子を含む、１成分または２成分以上からなる反
応硬化性樹脂を、粘度１〜3,500cp の状態下で金型内の
樹脂成形品に被覆し反応硬化させ、これにレーザで、任
意の表示をマーキングしてなることを特徴とする照光文
字部品。1. A reaction curable resin comprising one component or two or more components, containing fine particles of carbon black, a simple substance of metal, an alloy of these metals, an oxide thereof, or a mixture thereof alone, or a mixture thereof, and having a viscosity of 1 to 3,500. Illuminated character parts characterized by being formed by coating a resin molded product in a mold under a cp condition, allowing it to react and cure, and then marking the desired display with a laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5313093U JPH0723371U (en) | 1993-09-30 | 1993-09-30 | Illuminated letter parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5313093U JPH0723371U (en) | 1993-09-30 | 1993-09-30 | Illuminated letter parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0723371U true JPH0723371U (en) | 1995-04-25 |
Family
ID=12934235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5313093U Pending JPH0723371U (en) | 1993-09-30 | 1993-09-30 | Illuminated letter parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024868A (en) * | 2001-07-16 | 2003-01-28 | Japan Aviation Electronics Industry Ltd | Laser marking method and coating material used for its method |
| JP2009223096A (en) * | 2008-03-18 | 2009-10-01 | Sony Corp | Display board |
-
1993
- 1993-09-30 JP JP5313093U patent/JPH0723371U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024868A (en) * | 2001-07-16 | 2003-01-28 | Japan Aviation Electronics Industry Ltd | Laser marking method and coating material used for its method |
| JP2009223096A (en) * | 2008-03-18 | 2009-10-01 | Sony Corp | Display board |
| JP4586871B2 (en) * | 2008-03-18 | 2010-11-24 | ソニー株式会社 | Display board |
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