JPH0822602B2 - Method of manufacturing thermal head - Google Patents
Method of manufacturing thermal headInfo
- Publication number
- JPH0822602B2 JPH0822602B2 JP26566290A JP26566290A JPH0822602B2 JP H0822602 B2 JPH0822602 B2 JP H0822602B2 JP 26566290 A JP26566290 A JP 26566290A JP 26566290 A JP26566290 A JP 26566290A JP H0822602 B2 JPH0822602 B2 JP H0822602B2
- Authority
- JP
- Japan
- Prior art keywords
- thermal head
- resistor
- printing
- manufacturing
- insulating substrate
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010408 film Substances 0.000 description 10
- 238000007639 printing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000010304 firing Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- -1 gold organometallic compound Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はファクシミリ、フルカラープリンタ、ワープ
ロなどの記録装置に用いるサーマルヘッドの製造方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a thermal head used in a recording device such as a facsimile, a full color printer, a word processor.
従来の技術 熱転写印字方式や、感熱印字方式のプリンタなどの印
字装置に用いられるサーマルヘッドは、従来次の二つの
種類のものがある。その一つは第１図に示すように、グ
レーズ層（11a）を被覆したアルミナのような絶縁性基
板（11）の上に、蒸着、スパッタリングのような真空薄
膜形成プロセスにより得たTa−Siのような抵抗体層（1
2）、ニッケル（Ni）、クロム（Cr）のような電極層（1
3,14）、SiCのような耐磨耗層（15）をホトリソエッチ
ング法を用いてパターン形成したもので、いわゆる薄膜
型と呼ばれるものである。他方、第２図に示すように、
グレーズ層（21a）を被覆した絶縁性基板（21）の上
に、抵抗体層（22）を対向する電極層（23），（24）に
またがって形成し、その上に耐摩耗層（25）をそれぞれ
ペーストの印刷焼成により形成するもので、いわゆる厚
膜型と呼ばれるものである。2. Description of the Related Art Conventionally, there are two types of thermal heads used in a printing apparatus such as a printer of a thermal transfer printing system or a thermal printing system. One of them is Ta-Si obtained by vacuum thin film forming process such as vapor deposition and sputtering on an insulating substrate (11) such as alumina coated with glaze layer (11a) as shown in FIG. Resistor layer (1
2), electrode layers such as nickel (Ni), chromium (Cr) (1
3,14), a wear-resistant layer (15) such as SiC is patterned using a photolithographic etching method, which is a so-called thin film type. On the other hand, as shown in FIG.
A resistor layer (22) is formed over the opposing electrode layers (23) and (24) on an insulating substrate (21) coated with a glaze layer (21a), and a wear resistant layer (25) is formed thereon. 2) is formed by printing and firing a paste, which is a so-called thick film type.
一般に、厚膜型のサーマヘッドは印刷焼成法を用いる
ことから設備コストが低いこと、連続生産が容易なこと
など利点が多い。Generally, a thick film type thermistor head has many advantages such as low equipment cost and easy continuous production since it uses a printing and firing method.
前述のように、厚膜型のサーマルヘッドの抵抗体層
は、抵抗体成分のRuO2とガラスフリットの酸化物粒子
と、有機バインダーと溶剤の有機ビヒクルからなるベー
ストをスクリーン印刷し、これを焼成することにより形
成される。As described above, the resistor layer of the thick film type thermal head is screen-printed with a base consisting of the resistor component RuO 2 and glass frit oxide particles, and an organic binder and solvent organic vehicle, and baked. It is formed by
発明が解決しようとする課題 このような従来のサーマルヘッドの製造方法では、ス
クリーン印刷を用いた場合、ストローク中の印圧の変化
等の印刷機の影響や、乳剤の厚みのばらつき等のスクリ
ー版の影響により、印刷後の塗膜の膜厚のばらつきを生
じる欠点がある。また、従来の抵抗体層の膜厚は５μｍ
以上であり、熱効率が悪く、かつ紙との摩擦による騒音
が大きいという課題があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In such a conventional method of manufacturing a thermal head, when screen printing is used, the influence of a printing machine such as a change in printing pressure during a stroke and a scree plate such as a variation in emulsion thickness Due to the influence of, there is a drawback that the thickness of the coating film after printing varies. The conventional resistor layer has a thickness of 5 μm.
As described above, there is a problem that thermal efficiency is low and noise due to friction with paper is large.
本発明は上記課題を解決するもので、５μｍ以下の均
一な膜厚と抵抗値ばらつきの小さい抵抗体層を有し、ト
リミング工程なしに、品質の優れた記録を与えるサーマ
ルヘッドの製造方法を提供することを目的とする。The present invention solves the above problems, and provides a method for manufacturing a thermal head having a uniform film thickness of 5 μm or less and a resistor layer having a small resistance value variation, and providing excellent quality recording without a trimming step. The purpose is to do.
課題を解決するための手段 本発明は上記目的を達成するために、絶縁性基板もし
くは絶縁性基板上に形成した電極層上に、含有量が30重
量パーセントから60重量パーセントの酸化物微粉末と有
機バインダーを含んだ有機ビヒクルからなる抵抗体形成
インクをノズルを具備する機材を用いて吐出・塗布し、
加熱処理することにより抵抗体層を形成する工程を含む
構成よりなる。Means for Solving the Problems In order to achieve the above object, the present invention, on an insulating substrate or an electrode layer formed on an insulating substrate, a content of 30 wt% to 60 wt% oxide fine powder and A resistor forming ink made of an organic vehicle containing an organic binder is discharged and applied using a device equipped with a nozzle,
It has a structure including a step of forming a resistor layer by heat treatment.
作用 本発明は上記構成により、ノズルを具備する機材を用
いるので、抵抗体形成インクの吐出量が一定となるよう
に圧力を制御でき、膜厚の均一な塗布膜が形成され、抵
抗値ばらつきが小さくなり、印字品質が向上する。Effects Since the present invention uses the equipment having the nozzles with the above-described configuration, the pressure can be controlled so that the discharge amount of the resistor-forming ink is constant, a coating film having a uniform film thickness is formed, and the resistance value varies. It becomes smaller and print quality improves.
実施例 以下、本発明の一実施例について説明する。厚さ0.8m
mのグレーズアルミナ基板の上に金の有機金属化合物ペ
ーストを印刷焼成し、ホトリソエッチングによって対向
した電極層を形成した。つぎにその対向した電極層にま
たがって、RuO2粉末とホウケイ酸ガラスフリットからな
る酸化物微粉末と、エチルセルロースとターピネオール
からなる有機ビヒクルとで構成された抵抗体形成インク
を用い、ディスペンサによりライン状の抵抗体層を形成
した。ここで、抵抗体形成インクとして、酸化物微粉末
の含有量が20から70重量パーセントのものを試作した。
その後表面にホウケイ酸鉛系ガラスペーストの印刷焼成
により耐磨耗層を形成した。なおここで、抵抗体層の形
成方法として、ディスペンサを用いているが、インクを
吐出させる印字装置、たとえばインクジェット方式のプ
リンタ等を用いても良いし、一般的にはノズルを具備す
る機材を用いて吐出・塗布し、加熱処理することで遂行
できる。Example Hereinafter, an example of the present invention will be described. Thickness 0.8m
A gold organometallic compound paste was printed and fired on a m-glazed alumina substrate, and an opposing electrode layer was formed by photolithography etching. Next, straddling the electrode layers facing each other, using a resistor-forming ink composed of an oxide fine powder made of RuO 2 powder and borosilicate glass frit, and an organic vehicle made of ethyl cellulose and terpineol, a line was formed by a dispenser. The resistor layer of was formed. Here, as the resistor-forming ink, a trial production of an oxide fine powder content of 20 to 70% by weight was made.
After that, a wear-resistant layer was formed on the surface by printing and firing a lead borosilicate glass paste. Although a dispenser is used as the method of forming the resistor layer here, a printing device that ejects ink, for example, an inkjet printer or the like may be used, and in general, equipment having nozzles is used. It can be achieved by discharging and applying it and applying heat treatment.
上述の実施例によるサーマルヘッドの特性を下表に示
すが比較例はスクリーン印刷焼成法によるものであり、
その他の条件は上述の実施例と同じで、酸化物微粒子の
含有量は40重量パーセントの場合を示す。The characteristics of the thermal head according to the above-described example are shown in the table below, but the comparative example is based on the screen printing firing method,
The other conditions are the same as those in the above-mentioned embodiment, and the case where the content of the oxide fine particles is 40% by weight is shown.
上表から明らかなように、酸化物微粒子の含有量が30
〜50Wt％の場合に記録品質が良好であることがわかる。 As is clear from the above table, the content of oxide fine particles is 30
It can be seen that the recording quality is good in the case of up to 50 Wt%.
発明の効果 以上の実施例から明らかなように本発明によれば、含
有量が30重量パーセントから60重量パーセントの酸化物
微粉末と有機バインダーを含んだ有機ビヒクルからなる
抵抗体形成インクをノズルを具備する機材を用いて吐出
・塗布し、加熱処理して、抵抗体層を形成するので、抵
抗体形成インクの吐出量が一定となるように圧力を制御
して、膜厚の均一な塗布膜を形成でき、その結果、トリ
ミング工程なしに抵抗値ばらつきの小さい抵抗体層が実
現できて、印字品質の優れたサーマルヘッドを提供でき
る。EFFECTS OF THE INVENTION As is clear from the above examples, according to the present invention, a resistor forming ink comprising an organic vehicle containing an oxide fine powder having an amount of 30 to 60% by weight and an organic binder is used as a nozzle. Since the resistor layer is formed by discharging and coating using the equipment provided and heat treatment, the pressure is controlled so that the discharge amount of the resistor-forming ink is constant, and a coating film having a uniform film thickness is formed. As a result, a resistor layer having a small resistance value variation can be realized without a trimming step, and a thermal head having excellent printing quality can be provided.
第１図は一般の薄膜型サーマルヘッドの断面図、第２図
は一般の厚膜型サーマルヘッドの断面図である。FIG. 1 is a sectional view of a general thin film thermal head, and FIG. 2 is a sectional view of a general thick film thermal head.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−46501（ＪＰ，Ａ) 特開 昭62−251158（ＪＰ，Ａ) 特開 昭61−262139（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-62-46501 (JP, A) JP-A-62-251158 (JP, A) JP-A-61-262139 (JP, A)
Claims (2)
た電極層上に、含有量が30重量パーセントから60重量パ
ーセントの酸化物微粉末と有機バインダーを含んだ有機
ビヒクルからなる抵抗体形成インクをノズルを具備する
機材を用いて吐出・塗布し、加熱処理することにより抵
抗体層を形成する工程を含むことを特徴とするサーマル
ヘッドの製造方法。1. A resistor-forming ink comprising an organic vehicle containing an oxide fine powder having an amount of 30 to 60% by weight and an organic binder on an insulating substrate or an electrode layer formed on the insulating substrate. A method of manufacturing a thermal head, comprising the steps of: discharging and coating using a device equipped with a nozzle, and performing heat treatment to form a resistor layer.
サまたはインクジェットプリンタを用いることを特徴と
する請求項１記載のサーマルヘッドの製造方法。2. The method of manufacturing a thermal head according to claim 1, wherein a dispenser or an ink jet printer is used as the equipment having the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26566290A JPH0822602B2 (en) | 1990-10-02 | 1990-10-02 | Method of manufacturing thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26566290A JPH0822602B2 (en) | 1990-10-02 | 1990-10-02 | Method of manufacturing thermal head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04141452A JPH04141452A (en) | 1992-05-14 |
| JPH0822602B2 true JPH0822602B2 (en) | 1996-03-06 |
Family
ID=17420251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26566290A Expired - Fee Related JPH0822602B2 (en) | 1990-10-02 | 1990-10-02 | Method of manufacturing thermal head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0822602B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962827A (en) * | 2017-11-02 | 2018-04-27 | 杨潮平 | Composite plate and preparation method thereof and printhead |
-
1990
- 1990-10-02 JP JP26566290A patent/JPH0822602B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962827A (en) * | 2017-11-02 | 2018-04-27 | 杨潮平 | Composite plate and preparation method thereof and printhead |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04141452A (en) | 1992-05-14 |
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