JPS618390A - Manufacture of printing key - Google Patents
Manufacture of printing keyInfo
- Publication number
- JPS618390A JPS618390A JP12972584A JP12972584A JPS618390A JP S618390 A JPS618390 A JP S618390A JP 12972584 A JP12972584 A JP 12972584A JP 12972584 A JP12972584 A JP 12972584A JP S618390 A JPS618390 A JP S618390A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- key
- printed
- character
- thickness
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000007639 printing Methods 0.000 title abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000006224 matting agent Substances 0.000 claims abstract description 7
- 239000003973 paint Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000000049 pigment Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 4
- 239000010408 film Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000007605 air drying Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- 241000238413 Octopus Species 0.000 description 1
- -1 acrylic polyol Chemical class 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0036—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers dried without curing
Landscapes
- Printing Methods (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【発明の詳細な説明】
（＆楽土の利用分野）
この発明はコンピュータやワードブ１」セッサなどのキ
ーボード、工作機械等の操作パネル、タイプライタやブ
ツシュホンなど、各種機器に用いられる頂面に印刷を施
したキーの製造方法に関する。[Detailed Description of the Invention] (&Fields of Application of Rakudo) This invention is capable of printing on the top surfaces of various devices such as keyboards for computers and word processors, operation panels for machine tools, typewriters, and telephones. The present invention relates to a method of manufacturing a key.
（従来の技術）
一般にキーの頂面には各種の文字（記号を含む）を表示
する必要があり、従来は予め専用の金型で成形した文字
部分を外形成形用金型にインリートして成形するインサ
ート成形法や、同一・金型中に文字成形部と外形成形部
があるダブルインジェクション法等の２色成形法による
ものが一般的であり、他の方法としてはキーのＳ地の頂
面にインキにより文字を印刷するものもあった。(Prior technology) Generally, it is necessary to display various characters (including symbols) on the top surface of the key, and conventionally, the character part is pre-molded in a special mold and then injected into an external mold. Two-color molding methods such as the insert molding method, which has a character molding part and the outer molding part in the same mold, are common. Some had letters printed on them using ink.
（発明が解決しようとする問題点）
ところが上記２色成形法は金型費がかさみ、文字が複Ｍ
ＷＩＩｍになったり多色化してくると金型の製作が困難
どなり実施不能となる。また印刷によるものはインキの
性能を上げても耐摩耗性が低く極めて寿命の短いものし
か得られなかった。(Problems to be solved by the invention) However, the above-mentioned two-color molding method increases the mold cost, and the characters are
When it becomes WIIm or becomes multi-colored, it becomes difficult to manufacture molds and it becomes impossible to implement. Furthermore, even if the performance of the ink was improved, the printing method had low abrasion resistance and had an extremely short lifespan.
この発明は上記従来の欠点を解ｆｉするものぐ、安価に
製造でき長寿命で色調や解像度もすぐれた文字表示部を
有する印刷キーの製造方法を捉供しようとするものであ
る。The present invention aims to solve the above-mentioned conventional drawbacks and to provide a method for manufacturing a printed key having a character display portion that can be manufactured at low cost, has a long life, and has excellent color tone and resolution.
（問題点を解決するための手段）
本発明者は文字を印刷した４−一の頂面上に保護用の被
膜を付着させて文字部分の耐摩耗性を向上させる研究を
重ねた結果、被膜形成用の塗料の溶副成分の選定および
該塗料の塗布時期によって薄い被膜厚さでも充分な耐摩
耗性の得られることを知見し本発明を完成させるに至っ
た。寸なわら本発明はキーの頂面にインキを用いて文字
を印刷し、上記インキが半乾燥の状態において上記イン
キのバインダを溶解する溶剤および艶消剤を含有するク
リヤー塗料を上記頂面に塗布後乾燥させ、上記頂面の文
字を印刷してない部分における乾燥後のクリＶ−塗股厚
さを１０〜２０μとすることを特徴とりる印刷キーの製
造方法である。(Means for solving the problem) As a result of repeated research on improving the abrasion resistance of the character portion by attaching a protective film to the top surface of 4-1 on which characters are printed, the inventor found that The present invention was completed based on the finding that sufficient abrasion resistance can be obtained even with a thin film thickness by selecting the sub-components of the forming paint and the timing of application of the paint. In other words, the present invention uses ink to print characters on the top surface of the key, and when the ink is semi-dry, a clear paint containing a solvent and a matting agent that dissolves the binder of the ink is applied to the top surface. This method of manufacturing a printed key is characterized in that the coating is dried after coating, and the thickness of the chestnut V-coating after drying is 10 to 20 microns in the portion of the top surface where no characters are printed.
本発明において文字の印刷は、インキの秤類およびキー
頂面形状により、シルクスクリーン法、タンボブリント
法（タコ印刷）等によりお、こなうが、特にタンボブリ
ント法によるとキー頂面が曲面の場合でも良好な印刷が
おこなえる。In the present invention, characters are printed by a silk screen method, a tambo blint method (octopus printing), etc., depending on the scale of the ink and the shape of the top surface of the key, but especially when the top surface of the key is curved according to the tambo blint method. However, it can print well.
本発明においてインキのバインダを溶解するクリヤー塗
料の溶剤としては、インキの溶剤と同系統の溶剤を用い
るのが最も好ましい。In the present invention, it is most preferable to use a solvent of the same type as the ink solvent as the clear paint solvent for dissolving the ink binder.
本発明におけるクリヤー塗料の塗布は、スプレーガンを
用いておこなうのが能率的であり、特にスプレーガンを
数秒おきに２〜３回往復さけて吹付塗布する連続塗装に
にるのが好ましいが、１回吹付後指触乾燥させ、さらに
その上に吹付ける作業を２〜３回繰返す間欠塗装によっ
てもよい。It is efficient to apply the clear paint in the present invention using a spray gun, and it is particularly preferable to apply the clear paint continuously by spraying the spray gun back and forth 2 to 3 times every few seconds. It is also possible to perform intermittent coating by repeating the process of spraying twice, drying to the touch, and then spraying on top of the spray two to three times.
（作用）
本発明においては半乾燥状態のインキの上に、該インキ
のバインダを溶解する溶剤を含有するクリヤー塗料を塗
布するので、該溶剤によってインキのバインダおよび顔
料の一部が溶出して、第１図（クリヤー塗Ｆ！１の厚さ
が博い場合）または第２図（クリヤー塗膜１の厚ざが厚
い場合）に示すようにインキとクリヤー塗料の合成層２
が形成される。この結果インキ層３および合成層２の上
を被覆するクリヤー塗膜１は薄くなり、文字の色調、解
像度ともすぐれた印刷４ニーが得られる。(Function) In the present invention, a clear paint containing a solvent that dissolves the binder of the ink is applied onto the semi-dry ink, so that the binder and pigment of the ink are partially eluted by the solvent. As shown in Figure 1 (when the thickness of the clear coating F!1 is wide) or Figure 2 (when the thickness of the clear coating film 1 is thick), the composite layer 2 of ink and clear paint
is formed. As a result, the clear coating film 1 covering the ink layer 3 and the composite layer 2 becomes thinner, and a printing quality with excellent character tone and resolution can be obtained.
また本発明におけるインキ層３の周囲のクリヤー塗膜１
は、指のタッチ等に対抗する耐摩耗層として機能し、イ
ンキ層３の損耗を抑制する。すなわち文字等をあられす
インキＬｉ３の巾は０．５乃至１ｊＩＩ＋程度と細いの
で、指はインキ層３の両側のクリヤー塗膜１に当接する
ことになり、法律１１１が摩滅するまで文字表示は消え
ないのである。Further, the clear coating film 1 around the ink layer 3 in the present invention
functions as an abrasion-resistant layer that resists finger touches and the like, and suppresses wear and tear on the ink layer 3. In other words, since the width of the ink Li3 used to form letters etc. is as narrow as 0.5 to 1jII+, the fingers come into contact with the clear coating film 1 on both sides of the ink layer 3, and the letter display disappears until Law 111 is worn away. There isn't.
本発明におい、てクリヤー塗料はマット剤等の艶消剤を
含有するものを用いるが、これはキー頂面としては無光
沢面を要求されるからである。このためクリヤー塗膜１
の厚ざｔを過度に厚くすると文字の色調が変り解像度が
低下する。本発明においてはクリヤー塗膜１の厚さｔを
２０μ以下としたので、合成層２上のクリヤー塗膜の厚
さは１０μ程度におさえられ、文字の色調や解ＷＡ度も
すぐれている。またクリヤー塗膜１の厚さｔを１０μ以
上としたので充分な耐摩耗性が得られる。In the present invention, a clear paint containing a matting agent such as a matting agent is used because a matte surface is required for the key top surface. For this reason, clear coating film 1
If the thickness t is made too large, the color tone of the characters changes and the resolution decreases. In the present invention, the thickness t of the clear coating film 1 is set to 20 μm or less, so the thickness of the clear coating film on the composite layer 2 can be kept to about 10 μm, and the color tone and WA resolution of the characters are also excellent. Further, since the thickness t of the clear coating film 1 is set to 10 μm or more, sufficient abrasion resistance can be obtained.
（実施例） 以下に本発明の実施例および比較例を記載する。(Example) Examples and comparative examples of the present invention are described below.
［実施例１Ｊ “
ＡＢＳ樹脂製のキーの頂面に下記インキを用いてタンボ
ブリント法により文字を印刷し、１０分間自然乾燥後、
乾燥炉で５０℃、３０分間の加熱乾燥をおこなった。次
に下記クリヤー塗料を用いて約２秒ごとにスプレーガン
を往復させて吹付塗装をおこない、１０分間自然乾燥後
、乾燥炉で６０℃、１時間の加熱乾燥をおこなった。得
られた製品のクリヤー塗膜１の厚さｔは１０〜１２μ、
インキ層３の厚さｈは約６μであった。[Example 1J "Characters were printed on the top surface of an ABS resin key using the following ink by the tambo printing method, and after air drying for 10 minutes,
Heat drying was performed in a drying oven at 50° C. for 30 minutes. Next, using the following clear paint, spray painting was performed by moving a spray gun back and forth every 2 seconds, and after air drying for 10 minutes, heating drying was performed at 60° C. for 1 hour in a drying oven. The thickness t of the clear coating film 1 of the obtained product is 10 to 12μ,
The thickness h of the ink layer 3 was about 6μ.
使用インキ：
カーボンブラックを顔料、フェノール樹脂をバインダと
し、エステル系溶剤を用いるもの。Ink used: Carbon black as pigment, phenol resin as binder, and ester solvent.
使用クリヤー塗料ニ
アクリル系ポリオールを主成分とし、シリカ系艶消剤１
８％を含有する主剤と、イソシアネー１−を主成分とす
る硬化剤とから成り、エステル系溶剤を用いるもの。Clear paint used: The main component is acrylic polyol, and 1 silica matting agent.
It consists of a main agent containing 8% and a curing agent whose main component is isocyanate 1-, and uses an ester solvent.
［実施例２］
クリヤー塗料の吹付回数を増し、クリヤー塗膜厚ざｔを
１８〜２０μとした他は、実施例１と同じ。[Example 2] Same as Example 1 except that the number of times the clear paint was sprayed was increased and the clear paint film thickness t was set to 18 to 20 μm.
［比較例１１
クリヤー塗料の吹付回数を増し、クリヤー塗膜厚さｔを
２６〜２９μとした他は、実施例１と同じ。Comparative Example 11 Same as Example 1 except that the number of times the clear paint was sprayed was increased and the clear paint film thickness t was 26 to 29 μm.
［比較例２］
文字印刷後、乾燥炉で６０℃、１詩間の加熱をおこなっ
た他は実施例２と同じ。[Comparative Example 2] Same as Example 2 except that after character printing, heating was performed at 60° C. for one verse in a drying oven.
［比較例３］
クリヤー塗料として、エポキシ樹脂を主成分とし、シリ
カ系艶消剤１８％を含有する主剤と、イソシアネートを
主成分とする硬化剤とから成り、ケ１−ン系溶剤（シク
ロヘキサノン）を用いるものを使用する他は、実施例２
と同じ。[Comparative Example 3] A clear paint consisting of an epoxy resin as a main component, a main agent containing 18% of a silica-based matting agent, and a curing agent containing an isocyanate as a main component, and a carbon-based solvent (cyclohexanone). Example 2 except that one using
Same as.
上記各実施例および比較例によって得られた印刷キーは
、キー頂面を指頭と同等性状のハンマーにより打１する
２０００万回の打鍵試験に耐え、いずれも充分な耐摩耗
性を右づ゛る。また塗膜特性中、文字の色調および解像
度について官能検査をおこなつｌＣ結果を第１表に示す
。なＪ３この検査は予め文字を印刷した標準色調限度見
本と標準解像度限度見本を各種作成しておき、これらの
見本と対比判定することによりおこなった。The printed keys obtained in each of the above Examples and Comparative Examples withstood a keystroke test of 20 million times in which the top surface of the key was struck once with a hammer with properties equivalent to the fingertip, and all of them showed sufficient wear resistance. . In addition, Table 1 shows the results of an IC sensory test regarding the color tone and resolution of characters among the coating film properties. J3 This test was conducted by preparing various standard color tone limit samples and standard resolution limit samples with characters printed in advance, and comparing and making judgments with these samples.
第 １ 表
第１表を参照すれば、実施例１ａ′３よび２は比較例１
〜３に比べ色調、解像度とも優れていることが判る。Table 1 Referring to Table 1, Examples 1a'3 and 2 are compared to Comparative Example 1.
It can be seen that both color tone and resolution are superior to those of 3.
（発明の効果）
以上説明したようにこの発明によれば、キー成形用の金
型は簡単なものでよく印刷および塗装を施すたりて文字
表示部を有するキーを安価に製造でき、耐摩耗性、文字
の色調および解像度とも優れた印刷キーが得られる。(Effects of the Invention) As explained above, according to the present invention, keys for forming keys can be easily printed and painted with a simple mold, and keys having character display parts can be manufactured at low cost, and the molds can be easily manufactured. , a print key with excellent character tone and resolution can be obtained.
第１図および第２図はこの発明によって得られる印刷キ
ーの頂部模式断面図である。
１・・・クリヤーｍＮ９．２・・・合成層、３・・・イ
ンキ層。1 and 2 are schematic cross-sectional views of the top of a printing key obtained according to the present invention. 1... Clear mN9.2... Synthetic layer, 3... Ink layer.
Claims (1)
が半乾燥の状態において上記インキのバインダを溶解す
る溶剤および艶消剤を含有するクリヤー塗料を上記頂面
に塗布後乾燥させ、上記頂面の文字を印刷してない部分
における乾燥後のクリヤー塗膜厚さを１０〜２０μとす
ることを特徴とする印刷キーの製造方法。Characters are printed on the top surface of the key using ink, and when the ink is semi-dry, a clear paint containing a solvent and a matting agent that dissolves the binder of the ink is applied to the top surface, and then dried. A method for producing a printed key, characterized in that the thickness of the clear coating film after drying on the portion of the top surface where no characters are printed is 10 to 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12972584A JPS618390A (en) | 1984-06-22 | 1984-06-22 | Manufacture of printing key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12972584A JPS618390A (en) | 1984-06-22 | 1984-06-22 | Manufacture of printing key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS618390A true JPS618390A (en) | 1986-01-16 |
| JPS645830B2 JPS645830B2 (en) | 1989-02-01 |
Family
ID=15016653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12972584A Granted JPS618390A (en) | 1984-06-22 | 1984-06-22 | Manufacture of printing key |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7097371B2 (en) | 2003-02-21 | 2006-08-29 | Hosiden Corporation | Keytop |
-
1984
- 1984-06-22 JP JP12972584A patent/JPS618390A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7097371B2 (en) | 2003-02-21 | 2006-08-29 | Hosiden Corporation | Keytop |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS645830B2 (en) | 1989-02-01 |
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