JPS6072732A - Energizing head - Google Patents

Abstract

PURPOSE:To providing an energizing head which has high resolution and excellent durability by forming the head of a laminate formed by alternately laminating electrically conductive layers and electrically insulating layers in thicknesswise direction so that the ends of the conductive layers are contacted with recording sheet to record and employing a material which contains specific amount ratio of hexagonal crystal boron nitride for the insulating layers. CONSTITUTION:In an energizing head formed of a laminate in which electrically conductive layers 201 and electrically insulating layers 202 are alternately laminated in a thicknesswise direction is formed so that the ends of the layer 201 are contacted with a recording sheet to record, the layers 202 are constructed to contain 20-60wt% of hexagonal crystal boron nitride. Thus, the head which has high resolution and long lifetime can be obtained. When the hexagonal boron nitride is contained in epoxy resin, the heat having high mechanical strength can be obtained.

Description

【発明の詳細な説明】 産業上の利用分野 従来例の構成とその問題点 近年、オフィスオートメーションにより種々の端末機が
要求されている。その中でも電気信号を２ベーミ゛ 可視像に変換する記録装置、いわゆるプリンタはその需
要が大きいにもかかわらず、性能的に満足のゆくものが
少ない。種々ある記録装置の中で、放電破壊記録装置は
高速性と記録の保存性および経済性について優れていて
一般によく使われている。しかし、この記録装置の印字
品質はあまり良いものではない。すなわち解像度があま
り良くなく、現在５〜６ドツト／咽が一般的である。放
電破壊記録装置は本来もつと解像度を高くできる能力が
あるにもかかわらず、性能が低くおさえられているのは
、書き込みヘッドの製造の難かしさのためであった。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Use Conventional configurations and problems thereof In recent years, various terminals have been required due to office automation. Among these, recording devices that convert electrical signals into bibeam visible images, so-called printers, are in great demand, but there are few that are satisfactory in terms of performance. Among various recording devices, discharge breakdown recording devices are generally widely used because they are superior in terms of high speed, record retention, and economical efficiency. However, the print quality of this recording device is not very good. In other words, the resolution is not very good, and currently 5 to 6 dots/hole is common. Despite the inherent ability of discharge rupture recording devices to achieve high resolution, their performance has been kept low due to the difficulty of manufacturing write heads.

放電破壊記録装置は蒸着アルミ層、黒色層、基紙層から
なる放電破壊記録紙の蒸着アルミ層を接地し、この蒸着
アルミ層に電圧を印加した電極を接触させ、接触部分を
加熱あるいは放電破壊により蒸着アルミを取り除き、下
地の黒色層を露出させて印字を行うものである。そのた
め、良好な書き込みを行うには第１図ａのように針金（
電極針）１１を露出し、接触を確実に行うよう書き込み
電３ベ−ミ゛ 極が作られている。１２は固定部、１３はリードである
。電極針を露出（突出）させない第１図すのような場合
は、電極針１４０周りが破壊され、ここに記録時に発生
するゴミがたまり、電極針同志の絶縁が損われ、追好外
書き込みができない。The discharge breakdown recording device is a discharge breakdown recording paper consisting of a vapor deposited aluminum layer, a black layer, and a base paper layer.The vapor deposited aluminum layer of the discharge breakdown recording paper is grounded, and an electrode to which a voltage is applied is brought into contact with this vapor deposited aluminum layer, and the contact portion is heated or discharge breakdown occurs. The vapor-deposited aluminum is removed and the underlying black layer is exposed for printing. Therefore, in order to write well, use a wire (as shown in Figure 1a).
A writing electrode 3 base pole is made to expose the electrode needle 11 and ensure contact. 12 is a fixed part, and 13 is a lead. If the electrode needles are not exposed (protruded) as shown in Figure 1, the area around the electrode needles 140 will be destroyed, and dust generated during recording will accumulate there, damaging the insulation between the electrode needles and causing non-target writing. Can not.

そこで、電極針を突出させ、しかも丈夫なもので作成す
る必要があり、したがって、太くてかつ硬いものを用い
なければならなかった。そのため、解像度を上げること
ができなかった。Therefore, it was necessary to make the electrode needle protrude and to make it strong, so it was necessary to use something thick and hard. Therefore, it was not possible to increase the resolution.

この様な問題を解決するために、電気的導体層と電気的
絶縁層を交互に厚み方向に積層した積層体から所望の形
状に切り出し、電気的導体層の各々の端面が記録紙と接
触し記録する通電ヘッドが提案された。以下図面を参照
しながら積層タイプの通電ヘッドについて説明する。第
２図は積層体の斜視図であり、２０１は電気的導体層、
２０２は電気的絶縁層である。第３図は積層体から所望
の形状に切り出しだ通電ヘッドの斜視図で、３０１は電
気的導体層、３０２は電気的絶縁層であり、これを用い
て書き込みの動作を第４図で説明する。In order to solve this problem, a desired shape is cut out from a laminate in which electrically conductive layers and electrically insulating layers are alternately stacked in the thickness direction, and each end surface of the electrically conductive layer is in contact with the recording paper. A recording energized head was proposed. The laminated type current-carrying head will be described below with reference to the drawings. FIG. 2 is a perspective view of the laminate, in which 201 is an electrical conductor layer;
202 is an electrically insulating layer. FIG. 3 is a perspective view of a current-carrying head cut into a desired shape from a laminated body, 301 is an electrically conductive layer, 302 is an electrically insulating layer, and the writing operation using these will be explained in FIG. 4. .

第４図において、４０１は放電破壊記録紙と呼ばれよく
知られているものである。これは、アルミ蒸着層４０２
、黒色層４０３、基紙４０４から成っている。４０５は
積層タイプの通電ヘッドの斜視図である。In FIG. 4, 401 is a well-known paper called discharge destruction recording paper. This is the aluminum vapor deposition layer 402
, a black layer 403, and a base paper 404. 405 is a perspective view of a laminated type current-carrying head.

第４図を用いて記録の方法を簡単に説明する。The recording method will be briefly explained using FIG.

電気的導体層４０６の端面は、放電破壊記録紙４０１の
表面のアルミ蒸着層４０２と接触して、矢印の方向に移
動する。その際電気信号源から電気信号が、放電破壊記
録紙４０１と電気的導体層４０６に通電される。この通
電によりアルミ蒸着層４０２が破壊され黒色層４０３が
露出し、電気信号に応じたパターンが可視化される。し
かしながら上記の様な構成において、連続して通電によ
る書き込みを行うと、電気的絶縁層が、放電により発生
するジュール熱のだめ軟化し、極短な場合、電気的絶縁
層が炭化したり、放電により発生するアルミの融着物な
どの導電性の異物、ゴミが電極間に付着して短絡を起こ
す。また耐熱性を重視した材料を電気的絶縁層に用いる
と、接着強度か弱６ベミ・ く、積層体から切り出す際の機械加工で、はく離が生じ
、所望の通電ヘッドの作製が困難であシ、また書き込み
中に通電ヘッドの先端が変形またははく離するという問
題点があった。このような問題は、通電を利用する他の
記録方法にもみられた。The end face of the electrical conductor layer 406 comes into contact with the aluminum vapor deposited layer 402 on the surface of the discharge breakdown recording paper 401 and moves in the direction of the arrow. At this time, an electric signal is applied from an electric signal source to the discharge breakdown recording paper 401 and the electric conductor layer 406. This energization destroys the aluminum vapor deposited layer 402 and exposes the black layer 403, making a pattern corresponding to the electrical signal visible. However, in the above configuration, if writing is performed continuously by energizing, the electrically insulating layer will soften due to the Joule heat generated by the discharge, and if it is extremely short, the electrically insulating layer may become carbonized or the electrically insulating layer may become carbonized due to the discharge. Conductive foreign matter and dust, such as fused aluminum, adhere between the electrodes and cause short circuits. Furthermore, if a material with an emphasis on heat resistance is used for the electrical insulating layer, the adhesive strength will be weak, and peeling will occur during machining when cutting from the laminate, making it difficult to manufacture the desired current-carrying head. Furthermore, there is a problem in that the tip of the current-carrying head deforms or peels off during writing. Such problems have also been seen in other recording methods that utilize electricity.

発明の目的 本発明の目的は、通電を利用する記録装置に用いられる
高解像度で耐久性の優れた通電ヘッドを提供することで
ある。OBJECTS OF THE INVENTION An object of the present invention is to provide a high-resolution, highly durable current-carrying head for use in a recording device that utilizes current-carrying.

発明の構成 １１本発明の通電ヘッドは、電気的導体層と電気的絶縁
層を交互に厚み方向に積み重ねた積層体から々す、前記
電気的導体層の端面が記録紙と接触し記録する通電ヘッ
ドであって前記絶縁層が、六方晶窒化硼素を２０〜６０
ｗｔ％含有した材料を用いることにより、構成したもの
であり、これにより、高解像度で、しかも耐久性に優れ
た通電ヘッドとするものである。Structure 11 of the Invention The current-carrying head of the present invention is made of a laminate in which electrically conductive layers and electrically insulating layers are stacked alternately in the thickness direction, and the end face of the electrically conductive layer contacts a recording paper to carry out current-carrying for recording. The head, wherein the insulating layer contains 20 to 60 hexagonal boron nitride.
% by weight, and thereby provides a current-carrying head with high resolution and excellent durability.

実施例の説明 以下本発明の実施例について、図面、比較例を６ベジ 参照しながら説明する。Description of examples Examples of the present invention, drawings, and comparative examples are shown below. I will explain while referring to it.

電気的導体層として厚さ３５μｍの電解銅箔、電気的絶
縁層として下記の組成物（ｗｔ％）エポキシ樹脂　（ビ
スフェノ−＃Ａ型）　３５硬化剤　（酸無水物）２６ 六方晶窒化硼素　（９５％六九県窒化硼素５％バインダ
ー）　４０ を、三本ロールで混練し、前記電解銅箔に６６μｍの厚
さで塗工し、それらを２４枚積層し、１８０“’Ｃ２時
間、３ｏＶｆ／ａｌの圧力で、熱プレスを行い第２図の
ような積層体を得た。さらに所望の形状に切り出し、第
３図のような通電ヘッドＡを得た。Electrolytic copper foil with a thickness of 35 μm was used as the electrically conductive layer, and the following composition (wt%) was used as the electrically insulating layer: Epoxy resin (bispheno-#A type) 35 Curing agent (acid anhydride) 26 Hexagonal boron nitride (95 % Rokukuken boron nitride 5% binder) 40% was kneaded with three rolls, coated on the electrolytic copper foil at a thickness of 66 μm, 24 sheets of them were laminated, and heated at 180''C for 2 hours at 3oVf/al. The laminate was hot pressed at a pressure of 100 mL to obtain a laminate as shown in Fig. 2. It was further cut into a desired shape to obtain a current-carrying head A as shown in Fig. 3.

次いで上記と同様の手段を用い、六方晶窒化硼素の替わ
りに、酸化アルミニウム４０ｗｔ％添加した通電ヘッド
Ｂを得た。さらに充てん剤を全く含まない、エポキシ樹
脂と硬化剤のみを電気的絶縁層に用いた通電ヘッドＣを
得た。Next, using the same means as above, a current-carrying head B was obtained in which 40 wt % of aluminum oxide was added instead of hexagonal boron nitride. Furthermore, a current-carrying head C was obtained in which the electrical insulating layer contained only an epoxy resin and a curing agent and did not contain any filler.

得られた通電ヘッドＡ−Ｂ−Ｃは、電極間ピッチ１００
μｍ、即ち解像度１ｏ本／咽の放電破壊記録に用いる通
電ヘッドとして使用できるもので７ペ〕゛ あった。通電ヘッドＡは、Ａ−４タイプ（１行２　Ｑｃ
ｍ、　、　５行／秒の速さ）で連続５０００行の書き込
み後の通電ヘッドの状況を調べても、電極同志の短絡も
みられず、高品位の印字が維持されていた。The obtained current-carrying head A-B-C has an inter-electrode pitch of 100
The resolution was 10 lines/7 pages, which can be used as a current-carrying head for recording discharge damage in the throat. The current-carrying head A is A-4 type (1 row 2 Qc
Even when the status of the current-carrying head was examined after 5,000 lines of continuous writing was performed at a speed of 5,000 lines/second), no short circuit between electrodes was observed, and high-quality printing was maintained.

酸化アルミニウムを含有する通電へラドＢは、ヘッド先
端が硬いため、記録紙に、ひっかき傷が常時発生し、ま
たアルミ融着物などの導電性のゴミが付着し、３〜４ケ
所の短絡が発生した。充てん剤を全く含１ない通電ヘッ
ドＣは、放電により発生する熱の為、電極付近に大きな
穴があき、そこにアルミ融着物などの導電性の異物・ゴ
ミがたまり、電極同志で短絡し、１００行もかけない状
態であった。上記のように積層タイプの通電ヘッドにお
いて、電気的絶縁層に、六方晶窒化硼素を含有した材料
を用いることにより、高品質の印字が連続書き込みを行
っても維持される。これは、六方晶窒化硼素の優れた耐
熱性、電気絶縁性潤滑−硬度１９と柔らかく、充てん剤
としてエポキシ樹脂に添加しても、記録紙と接触する際
に、記録紙に傷を付けないばかりか、わずかに削られて
、常に新たな通電ヘッドの先端が現われて、異物の付着
を防いでいる。次に本発明の他の実施例について説明す
る。電気的絶縁層として、ビスフェノールＡ型のエポキ
シ樹脂、硬化剤として芳香族アミンを用い、六方晶窒化
硼素の添加量を変えて、最適添加量の検討を行った。Since the head tip of the current-carrying Herad B, which contains aluminum oxide, is hard, scratches occur constantly on the recording paper, and conductive dust such as aluminum fused material adheres, resulting in short circuits in 3 to 4 places. did. The current-carrying head C, which does not contain any filler, has large holes near the electrodes due to the heat generated by the discharge, and conductive foreign matter and dust such as aluminum fused materials accumulate there, causing short circuits between the electrodes. It took less than 100 lines. As described above, in the laminated type current-carrying head, by using a material containing hexagonal boron nitride for the electrically insulating layer, high quality printing is maintained even when continuous writing is performed. Hexagonal boron nitride has excellent heat resistance, electrical insulation, lubrication, and is soft with a hardness of 19. Even when added to epoxy resin as a filler, it does not damage the recording paper when it comes into contact with it. Or, it is slightly shaved so that a new current-carrying head tip always appears to prevent foreign matter from adhering to it. Next, other embodiments of the present invention will be described. Using a bisphenol A type epoxy resin as an electrical insulating layer and an aromatic amine as a hardening agent, the optimum amount of hexagonal boron nitride to be added was examined by changing the amount of hexagonal boron nitride added.

第１表　六方晶窒化硼素の最適添加量 ’ｈ−ＢＮ：六方晶窒化ホウ素 ９／・−〕・ 印字品質は、連続１０００行の書き込みを行い、電極同
志の短絡による印字劣化をみた。ゴミの付きにくさは、
電気的絶縁層に付着したアルミ蒸着物を含む導電性のゴ
ミの付着の程度を調べた。その結果印字品質とゴミの付
着は、密接な関係のあることが判明した。六方晶窒化硼
素が有する優れた潤滑特性が、ゴミの付着を防いでいる
と考えられる。Table 1: Optimal addition amount of hexagonal boron nitride 'h-BN: hexagonal boron nitride 9/.-] Print quality was determined by writing 1000 consecutive lines and checking for print deterioration due to short circuit between electrodes. Difficulty in attracting dust is
The degree of adhesion of conductive dust including aluminum deposits adhering to the electrically insulating layer was investigated. As a result, it was found that there is a close relationship between print quality and dust adhesion. It is thought that the excellent lubricating properties of hexagonal boron nitride prevent the adhesion of dust.

硬さは、放電破壊紙の通電ヘッドの接触による傷付き性
を観察し、難燃性は、ＵＬ−９４に準拠しくテストピー
スの厚み）１／１６インチでＶ−〇相当をＯとした。加
工性は、積層体の接着強度、切断時の機械加工性をみた
。The hardness was determined by observing the damage caused by the contact of the electric discharge head with the electric discharge rupture paper, and the flame retardance was determined based on UL-94, with the thickness of the test piece being 1/16 inch and equivalent to V-○ being O. For workability, we looked at the adhesive strength of the laminate and the machinability during cutting.

前記第１表の如く、六方晶窒化硼素は、２０景係の添加
で効果があり、７０ｗｔ％の添加したものでは加工性が
悪くなり、好ましい添加量として２０〜ｅｏｗｔ％、よ
り好ましくは、４０〜６０ｗｔ％の添加量が最適であっ
た。As shown in Table 1, hexagonal boron nitride is effective when added in an amount of 20 wt%, and workability becomes poor when added in an amount of 70 wt%, so the preferred addition amount is 20 to 40 wt%, more preferably 40 wt%. The addition amount of ~60 wt% was optimal.

六方晶窒化硼素を積層タイプの通電ヘッドの電気的絶縁
層に用いると、放電破壊記録の欠点であ１０、。When hexagonal boron nitride is used in the electrical insulating layer of a laminated type current-carrying head, there is a drawback in discharge breakdown recording10.

る、アルミ融着物の通電ヘッドへの付着が大幅に改善で
きる。しかし、六方晶窒化硼素を添加することにより、
樹脂の接着強度も低下する。そのため耐熱性の良好な、
ポリイミド、ビスマレイミドなどの樹脂を用いると、積
層体の接着強度が低下し、切り出し時の機械加工におい
て、通電ヘッド先端の変形、あるいは、はく離が生じて
しまい、接着力の強いエポキシ樹脂を用いるのが望まし
い結果が得られた。This can significantly improve the adhesion of aluminum fused materials to the current-carrying head. However, by adding hexagonal boron nitride,
The adhesive strength of the resin also decreases. Therefore, it has good heat resistance,
If resins such as polyimide or bismaleimide are used, the adhesive strength of the laminate will decrease, and the tip of the current-carrying head may deform or peel during the machining process during cutting. The desired results were obtained.

発明の効果 以上の説明のように本発明は、電気的導体層と電気的絶
縁層を交互に厚み方向に積み重ねた積層体からなり、前
記電気的導体層の端面が記録紙と接触し記録する通電ヘ
ッドであって前記電気的絶縁層が、六方晶窒化硼素を２
ｏ〜ｅｏｗｔ％含有するように構成されており、これに
より、高解像で長寿命の通電ヘッドが得られ、エポキシ
樹脂に、六方晶窒化硼素を含有させることにより、機械
的な強度の強い通電ヘッドが得られる。Effects of the Invention As explained above, the present invention consists of a laminate in which electrically conductive layers and electrically insulating layers are alternately stacked in the thickness direction, and the end surface of the electrically conductive layer contacts recording paper to perform recording. The electrically insulating layer is made of hexagonal boron nitride.
o to eowt%, thereby providing a high-resolution and long-life current-carrying head, and by containing hexagonal boron nitride in the epoxy resin, a high-mechanically strong current-carrying head is obtained. You will get the head.

【図面の簡単な説明】[Brief explanation of the drawing]

−へ　・ン・） １１　、。一つ。 第１図ａ、ｂは従来の通電ヘッドの斜視図、第２図は本
発明に係る積層体の斜視図、第３図は本発明の通電ヘッ
ドの斜視図、第４図は同ヘッドの書き込み部分の斜視図
である。 １０１．１０４・・・・電極、１０２・・・・・・固定
部、１０３　・・　・リード、２０１　．３０１　．４
０６・・・・・・電気的導体層、２０２，３０２，４０
７・・・・・・電気的絶縁層、４０１・・・・・放電破
壊記録紙、４０２・・・・・アルミ蒸着層、４ｏ３・・
・・・黒色層、４０４・・・・・基紙、４０５・・・・
・・通電ヘッド。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 （ａ−） （ｂ） 第２図 第３図 第４図-hen・n・) 11. one. Figures 1a and b are perspective views of a conventional current-carrying head, Figure 2 is a perspective view of a laminate according to the present invention, Figure 3 is a perspective view of a current-carrying head of the present invention, and Figure 4 is a writing head of the same head. FIG. 101.104...electrode, 102...fixing part, 103...lead, 201. 301. 4
06... Electric conductor layer, 202, 302, 40
7...Electrical insulating layer, 401...Discharge breakdown recording paper, 402...Aluminum vapor deposited layer, 4o3...
...Black layer, 404...Base paper, 405...
...Electric head. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure (a-) (b) Figure 2 Figure 3 Figure 4

Claims (2)

【特許請求の範囲】[Claims] （１）電気的導体層と電気的絶縁層を交互に厚み方向に
積み重ねた積層体からなり、前記電気的導体層の端面が
記録紙と接触し記録する通電ヘッドであって、前記電気
的絶縁層が、六方晶窒化硼素を２０〜６０ｗｔ％含有し
ていることを特徴とする通電ヘッド。(1) A current-carrying head consisting of a laminate in which electrically conductive layers and electrically insulating layers are stacked alternately in the thickness direction, and in which the end surface of the electrically conductive layer contacts recording paper to record, and the electrically insulating A current-carrying head characterized in that the layer contains 20 to 60 wt% hexagonal boron nitride. （２）電気絶縁層がエポキシ樹脂に、六方晶窒化硼素を
２０〜６０　ｗｔ％含有させたことを特徴とする特許請
求の範囲第１項記載の通電ヘッド。(2) The current-carrying head according to claim 1, wherein the electrical insulating layer contains 20 to 60 wt% hexagonal boron nitride in an epoxy resin.