JPH04161360A - Ion generating device for electrostatic recording and manufacture thereof - Google Patents
Ion generating device for electrostatic recording and manufacture thereofInfo
- Publication number
- JPH04161360A JPH04161360A JP28785690A JP28785690A JPH04161360A JP H04161360 A JPH04161360 A JP H04161360A JP 28785690 A JP28785690 A JP 28785690A JP 28785690 A JP28785690 A JP 28785690A JP H04161360 A JPH04161360 A JP H04161360A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- dielectric
- dielectric layer
- layer
- paste
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000843 powder Substances 0.000 claims abstract description 24
- 239000000839 emulsion Substances 0.000 claims abstract description 4
- 238000000059 patterning Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 11
- 239000010949 copper Substances 0.000 abstract description 11
- 229910052802 copper Inorganic materials 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000005530 etching Methods 0.000 abstract description 4
- 239000004094 surface-active agent Substances 0.000 abstract description 4
- 238000010422 painting Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 29
- 239000003981 vehicle Substances 0.000 description 8
- 239000003960 organic solvent Substances 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229920000180 alkyd Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000009974 thixotropic effect Effects 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、イオンフロー静電記録用イオン発生装置に係
り、特に静電式の印刷や複写に利用されるイオンフロー
静電記録用イオン発生装置及びその製造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an ion generator for ion flow electrostatic recording, and in particular to an ion generator for ion flow electrostatic recording used in electrostatic printing and copying. This invention relates to a device and its manufacturing method.
[従来の技術]
一般に静電記録法と呼ばれる技術には、針状電極を誘電
体層に当てて高電圧の記録信号を印加し、誘電体層の表
面に静電潜像と形成する方法と、−対の電極に誘電体層
が挟まれてなる記録ヘッドを、基板上の誘電体層から少
し離して配置し、この記録ヘッドによりコロナイオン流
を画素単位で制御することにより、非接触状態で基板上
の誘電体層表面にドツトとして静電忍像を形成する方法
とがある。このうち、後者のコロナイオン流を用いる方
法は、例えば特表昭57−501348号公報に記載さ
れている。[Prior Art] A technique generally called electrostatic recording method includes a method in which a needle-like electrode is applied to a dielectric layer and a high voltage recording signal is applied to form an electrostatic latent image on the surface of the dielectric layer. , - A recording head consisting of a dielectric layer sandwiched between a pair of electrodes is placed a little apart from the dielectric layer on the substrate, and this recording head controls the corona ion flow on a pixel by pixel basis, thereby creating a non-contact state. There is a method in which an electrostatic image is formed as dots on the surface of a dielectric layer on a substrate. Of these, the latter method using a corona ion flow is described, for example, in Japanese Patent Publication No. 57-501348.
このコロナイオン流を用いる方法は、静電記録法として
有効な方法ではあるが、現在製造されているような記録
ヘッドでは、ドツトの大きさにバラツキがあり、高精度
の画像か得にくいという欠点がある。これは、記録ヘッ
ドの誘電体層の膜厚や内部組成が不均一であること、同
誘電体層のイオン発生部分内に欠陥(空気泡、溶媒蒸気
泡)か存在することによるものと考えられる。Although this method using corona ion flow is an effective method for electrostatic recording, it has the drawback that the dot size varies with the currently manufactured recording heads, making it difficult to obtain highly accurate images. There is. This is thought to be due to nonuniform film thickness and internal composition of the dielectric layer of the recording head, and the presence of defects (air bubbles, solvent vapor bubbles) in the ion-generating portion of the dielectric layer. .
均質、均一な膜厚の誘電体層としてマイカ薄膜を用いる
ことが提案されたが、記録紙幅の大きさのものの入手が
困難であること、高価格であること、電極上への接着、
および加工が困難であること等の理由から、現在では誘
電体粉末を分散したペースト状の塗料(誘電体ペースト
)か使用されるようになった。It has been proposed to use a mica thin film as a dielectric layer with a homogeneous and uniform thickness, but it is difficult to obtain a thin film with the width of a recording paper, is expensive, and does not adhere well to the electrodes.
For other reasons, such as difficulty in processing, paste-like paints (dielectric paste) in which dielectric powder is dispersed have come to be used.
[発明か解決しようとする課題]
誘電体ペーストは、接着性、価格、自由な形状か得られ
る二と等、多くの利点かあるか、均一な膜を形成する上
で種々の難点も備えている。[Invention or problem to be solved] Dielectric paste has many advantages such as adhesion, cost, and the ability to form a free shape, but it also has various difficulties in forming a uniform film. There is.
即ち、誘電体ペーストは、誘電体粉末を有機化合物から
なるビヒクル中に均一に懸濁させたものである。誘電体
ペースト中の誘電体粉末の配合量は、50〜809oと
高く、そのため稠密、高粘度の液状体とならざるを得な
い。従って、殆との誘電体ペーストは、チクソトロビッ
ク性か大きく、取扱いが非常に困難なものである。That is, the dielectric paste is made by uniformly suspending dielectric powder in a vehicle made of an organic compound. The blending amount of the dielectric powder in the dielectric paste is as high as 50 to 809 degrees, so that the liquid must be dense and highly viscous. Therefore, most dielectric pastes are highly thixotropic and are very difficult to handle.
また、誘電体ペーストは通常、スクリーン印刷や打抜き
型印刷により電極上に薄膜として成膜される。誘電体ペ
ーストの攪拌混合の際や印刷の際に内部に泡か巻込まれ
るが、この泡は、静置によっては殆ど浮上せず、脱泡は
非常に困難なため、そのまま内部に固定されてしまう。Further, the dielectric paste is usually formed as a thin film on the electrode by screen printing or die printing. Bubbles are trapped inside the dielectric paste when it is stirred and mixed or printed, but these bubbles hardly rise to the surface when left standing, and it is extremely difficult to remove the bubbles, so they remain fixed inside. .
更に、下地である電極表面の凹凸、誘電体ペーストの混
合ムラ、誘電体ペーストのチクソトロピック性による粘
度変化、印刷圧力の差等による誘電体層の不均質、膜厚
の不均一は、放置により平準化(レベリング)されに<
(1oそのため、印刷直後の、全体が湿潤状態にあると
きは、−見均一な厚さに印刷されたかの如くみえても、
乾燥固化した後では、微細な凹凸、周辺の盛土かり、印
刷始点と終点の厚さの変動等が生してしまう。Furthermore, unevenness on the underlying electrode surface, uneven mixing of the dielectric paste, viscosity changes due to the thixotropic nature of the dielectric paste, non-uniformity in the dielectric layer due to differences in printing pressure, and non-uniform film thickness may occur due to neglect. To be leveled <
(1o Therefore, when the entire surface is wet immediately after printing, even if it appears to be printed with a uniform thickness,
After drying and solidifying, fine irregularities, surrounding embankments, and variations in thickness between the printing start and end points occur.
本発明は、上記課題を解決するためになされたものであ
って、実質的に均質かつ膜厚か均一な誘電体層が形成可
能であり、それによって高精度のドツト潜像を形成可能
な静電記録用イオン発生装置の製造方法が提供される。The present invention was made in order to solve the above problems, and it is possible to form a dielectric layer that is substantially homogeneous and has a uniform thickness, thereby making it possible to form a static dot latent image with high precision. A method of manufacturing an ion generator for electrographic recording is provided.
[課題を解決するための手段]
本発明は、第1の電極用シートの一方の面に塗料ビヒク
ル中に誘電体粉末を分散させたエマルジョン型誘電体ペ
ーストを空布する工程、誘電体ペーストが塗布された第
1の電極用シートを遠心回転させる工程、塗布層の上に
第2の電極用シートを載置し、圧着接合する工程、及び
前記第1及び第2の電極用シートを所定パターンにバタ
ーニングして第1及び第2の電極を形成する工程を具備
するイオンフロー静電記録用イオン発生装置の製造方法
を提供する。[Means for Solving the Problems] The present invention includes a step of dispersing an emulsion type dielectric paste in which dielectric powder is dispersed in a paint vehicle on one side of a first electrode sheet, A step of centrifugally rotating the applied first electrode sheet, a step of placing a second electrode sheet on the coating layer and pressure bonding, and a step of applying the first and second electrode sheets to a predetermined pattern. Provided is a method for manufacturing an ion generating device for ion flow electrostatic recording, which includes the step of patterning to form first and second electrodes.
遠心回転後の塗布層を乾燥した後、塗布層表面を溶剤で
処理するか、又は前記遠心回転後の塗布層表面を加熱処
理ことにより、塗布層表面を賦活(活性化)することが
出来る。After drying the coating layer after centrifugal rotation, the surface of the coating layer can be activated by treating the surface of the coating layer with a solvent or by heat-treating the surface of the coating layer after centrifugal rotation.
更に本発明は、第1の電極と第2の電極との間に誘電体
粉末か分散した誘電体層を介在させてなるイオンフロー
静電記録用イオン発生装置であって、前記誘電体層中の
誘電体粉末は第1の電極側において高濃度であり、第2
の電極側において低濃度であることを特徴とするイオン
フロー静電記録用イオン発生装置を提供する。Further, the present invention provides an ion generating device for ion flow electrostatic recording in which a dielectric layer in which dielectric powder is dispersed is interposed between a first electrode and a second electrode, wherein The dielectric powder is highly concentrated on the first electrode side and on the second electrode side.
Provided is an ion generating device for ion flow electrostatic recording, which is characterized by a low concentration on the electrode side of the ion flow.
本発明に用いられる誘電体ペーストは、誘電体粉末、例
えば誘電率の大きい無機物微粉末表面を、好ましくは親
水化処理した後、界面活性剤を含む水中でエマルジョン
化し、このうち所定量をエマルジョン塗料用ビヒクル中
に均一に混合することにより得た、高濃度で低〜中粘度
のペースト状のエマルジョン型塗料である。The dielectric paste used in the present invention is prepared by treating the surface of a dielectric powder, such as an inorganic fine powder with a high dielectric constant, to make it hydrophilic, and then emulsifying it in water containing a surfactant. It is a highly concentrated, low to medium viscosity, paste-like emulsion-type paint obtained by uniformly mixing it in a vehicle for use.
塗料ビヒクルとしては熱硬化性アルキッド樹脂等の樹脂
成分を有機溶剤に溶解したものを用いることか出来る。As the paint vehicle, a resin component such as a thermosetting alkyd resin dissolved in an organic solvent can be used.
また、誘電体粉末としては酸化チタン、チタン酸バリウ
ム、ジルコン酸鉛等を用いることが出来る。Further, as the dielectric powder, titanium oxide, barium titanate, lead zirconate, etc. can be used.
誘電体ペースト中の誘電体粉末の量は、好ましくは50
〜80重量96である。また、誘電体ペースト中の樹脂
成分の童は10〜25重量%、有機溶剤及び水の量は1
0〜25重量96かそれぞれ好ましい。The amount of dielectric powder in the dielectric paste is preferably 50
~80 weight 96. In addition, the amount of resin component in the dielectric paste is 10 to 25% by weight, and the amount of organic solvent and water is 1% by weight.
0 to 25 weight 96 is preferable.
誘電体ペーストは、−数的には室温下で、静置安定時に
、粘度70,000〜120,000cpsの極く粘稠
な、糸を引く液体である。また、誘電体ペーストは、チ
クソトロビック性が大きく、攪拌(又は揺動)によって
粘度が大きく変化する。Dielectric paste is a highly viscous, stringy liquid with a viscosity of 70,000 to 120,000 cps when statically stable at room temperature. Further, the dielectric paste has a large thixotropic property, and its viscosity changes greatly by stirring (or shaking).
例えば、静置安定時に100,000cpsの誘電体ペ
ーストを強く攪拌すると、50.000cpsに半減す
る場合がある。For example, if a dielectric paste of 100,000 cps is strongly stirred when it is stable, the speed may be reduced by half to 50,000 cps.
本発明に用いられる誘電体ペーストはエマルジョン型の
水性塗料であるため、誘電体粉末量が有機溶剤型塗料と
ほぼ等量であっても、室温下での粘度か8.000〜2
0,000と低く、攪拌や温度変化による粘度変化も小
さい。この粘性の低さは、静置脱泡性において有機溶剤
型塗料よりも非常に優れており、特に本発明の方法にお
けるように遠心分離を採用すると、有機溶剤型塗料の場
合に脱泡されなかったものか、実用上十分に脱泡可能で
ある。Since the dielectric paste used in the present invention is an emulsion-type water-based paint, even if the amount of dielectric powder is almost the same as that of an organic solvent-based paint, the viscosity at room temperature is 8.000~2.
0,000, and the viscosity change due to stirring or temperature change is also small. This low viscosity is much superior to organic solvent-based paints in terms of stationary defoaming properties, and especially when centrifugal separation is employed as in the method of the present invention, organic solvent-based paints are not defoamed. However, it is possible to defoam sufficiently for practical purposes.
第1及び第2の電極は、銅シート又はステンレスシート
を所定のパターンにバターニング(エツチング)するこ
とにより得ることが出来る。The first and second electrodes can be obtained by patterning (etching) a copper sheet or a stainless steel sheet into a predetermined pattern.
[作用]
本発明の方法においては、まず誘電体ペーストを第1の
電極用シートに塗布する。この誘電体ペーストは、塗料
ビヒクル中に誘電体粉末を分散させたエマルジョン型塗
料であるため、誘電体粉末を高濃度に含有していても粘
度はさほど高くならず、そのため攪拌混合により入り込
んだ泡は、遠心回転により容易に脱泡することが出来る
。その結果、均一な厚さの誘電体層を得ることが可能で
ある。[Function] In the method of the present invention, a dielectric paste is first applied to the first electrode sheet. This dielectric paste is an emulsion-type paint in which dielectric powder is dispersed in a paint vehicle, so even if it contains a high concentration of dielectric powder, the viscosity does not increase very much. can be easily defoamed by centrifugal rotation. As a result, it is possible to obtain a dielectric layer of uniform thickness.
また、遠心回転により誘電体粉末か下部(第1の電極側
)に、ビヒクルか上部に集まることから、誘電体層上面
の多少の凹凸はドツト濃度に影響せず、そのため、本発
明のイオン発生装置を用いると、高精度のドツト潜像を
形成可能である。In addition, because the dielectric powder gathers at the bottom (first electrode side) and the vehicle at the top due to centrifugal rotation, slight irregularities on the top surface of the dielectric layer do not affect the dot concentration, and therefore, the ion generation method of the present invention Using the apparatus, it is possible to form a dot latent image with high precision.
[実施例コ
以下、図面を参照して、本発明の具体的実施例につき、
説明する。[Example] Hereinafter, with reference to the drawings, specific examples of the present invention will be described.
explain.
第1図は、本発明の一実施例に係るイオン発生装置の断
面図、第2図はその斜視図である。FIG. 1 is a sectional view of an ion generator according to an embodiment of the present invention, and FIG. 2 is a perspective view thereof.
第1図において、複数の第1の電極1が、紙面に垂直な
方向に平行に伸びており、この第1の電極と異なる方向
に、複数の第2の電極3か伸びている。これら第1及び
第2の電極の間に誘電体層2が挟まれている。第2の電
極3は、第1の電極1に対応した開口を有している。第
2の電極3の第1の電極1の反対側には第3の電極5が
配置され、この第3の電極5は第2の電極3の開口と対
応した開口を有している。第2の電極3と第3の電極5
との間には絶縁体層4が挟まれており、この絶縁体層4
は第2の電極3と第3の電極5の開口に対応した開口を
有している。In FIG. 1, a plurality of first electrodes 1 extend in parallel to a direction perpendicular to the paper surface, and a plurality of second electrodes 3 extend in a direction different from the first electrodes. A dielectric layer 2 is sandwiched between these first and second electrodes. The second electrode 3 has an opening corresponding to the first electrode 1. A third electrode 5 is arranged on the opposite side of the second electrode 3 from the first electrode 1, and this third electrode 5 has an opening corresponding to the opening of the second electrode 3. Second electrode 3 and third electrode 5
An insulator layer 4 is sandwiched between the insulator layer 4 and
has openings corresponding to the openings of the second electrode 3 and the third electrode 5.
以上のように構成されたイオン発生装置において、複数
の第1の電極1と第2の電極3との間に選択的に電圧を
印加することにより、選択された部分に対応する第2の
電極3の開口内近傍に正・負のイオンか発生する。第2
の電極3と第3の電極5との間にはバイアス電圧が印加
され、その極性により決定されるイオンのみが発生した
イオン中から抽出される。この抽出されたイオンは絶縁
体層4と第3の電極5の開口を通過し、第3の電極に対
向して配置されている被帯電部材(図示せず)を選択的
に帯電させる。このようにして、複数の第1の電極1と
第2の電極3の選択的駆動により、被帯電部材上にドツ
ト潜像が形成される。In the ion generator configured as described above, by selectively applying a voltage between the plurality of first electrodes 1 and the second electrodes 3, the second electrode corresponding to the selected portion is Positive and negative ions are generated near the opening of No.3. Second
A bias voltage is applied between the electrode 3 and the third electrode 5, and only ions determined by the polarity are extracted from the generated ions. The extracted ions pass through the insulator layer 4 and the opening of the third electrode 5, and selectively charge a member to be charged (not shown) disposed opposite the third electrode. In this way, by selectively driving the plurality of first electrodes 1 and second electrodes 3, a dot latent image is formed on the charged member.
即ち、このイオン発生装置は、静電記録ヘッドとして作
用する。That is, this ion generator functions as an electrostatic recording head.
実施例1
無水フタール酸36%、大豆油(中油)4896、グリ
セリン16%を反応釜中て混合し、窒素置換した後、8
0℃で3時間予備反応させて、アルキッド樹脂を得た。Example 1 36% phthalic anhydride, 4896 soybean oil (medium oil), and 16% glycerin were mixed in a reaction vessel, and after purging with nitrogen,
A preliminary reaction was carried out at 0° C. for 3 hours to obtain an alkyd resin.
このアルキッド樹脂の固形分100部にベンジルアルコ
ール30部及びカルピトールアセテート(CH,Coo
(C2H40・C2H40” C2Hs ) ) 2
0部を加え、混合攪拌しながら酸化チタン粉末200部
、界面活性剤(ポリエチレングリコールアルキルエーテ
ル等のノニオン系のもの)5部を加え、更にイオン交換
水100部を追加して、ペイントコンディショナーによ
り充分に分散させた。これを還流器付き反応釜内に収容
し、110℃で揮発溶媒及び水分の量が15%になるま
で濃縮し、誘電体ペーストを得た。To 100 parts of the solid content of this alkyd resin, 30 parts of benzyl alcohol and carpitol acetate (CH, Coo)
(C2H40・C2H40” C2Hs ) ) 2
0 parts, and while stirring, add 200 parts of titanium oxide powder, 5 parts of surfactant (nonionic such as polyethylene glycol alkyl ether), and further add 100 parts of ion-exchanged water. It was dispersed into This was placed in a reaction vessel equipped with a reflux device and concentrated at 110° C. until the amount of volatile solvent and water became 15% to obtain a dielectric paste.
このようにして得た誘電体ペーストを、第1の電極用の
厚さ5μmの銅シート上に20〜40μmの厚さに塗布
し、塗膜が乾燥し始めないうちに、10分間遠心分離機
にかけて脱泡し、均一な厚さの誘電体層を形成した。な
お、遠心分離機の回転数は5000rpm (−100
0G)でありtこ。The dielectric paste thus obtained was applied to a thickness of 20 to 40 μm on a 5 μm thick copper sheet for the first electrode, and then centrifuged for 10 minutes before the coating began to dry. A dielectric layer of uniform thickness was formed by degassing. The rotation speed of the centrifuge is 5000 rpm (-100
0G).
次いて、誘電体層を加熱乾燥した後、誘電体層上に第2
の電極用の厚さ5μmの銅シートを重ね、この上から熱
プレスをかけ、誘電体層上に第2の電極用の銅シートを
固着するとともに、この熱プレスの熱により誘電体層を
硬化させた。Next, after heating and drying the dielectric layer, a second layer is placed on the dielectric layer.
A copper sheet with a thickness of 5 μm for the second electrode is stacked, and a heat press is applied from above to fix the copper sheet for the second electrode on the dielectric layer, and the dielectric layer is hardened by the heat of the heat press. I let it happen.
次に、第1及び第2の電極用の銅シートを同時に又は片
方づつエツチングによりパターニングし、静電記録ヘッ
ドとして作用するイオン発生装置を得た。Next, the copper sheets for the first and second electrodes were patterned by etching either simultaneously or one by one to obtain an ion generator functioning as an electrostatic recording head.
このイオン発生装置をイオノグラフィツクプリンタに装
着し、画像を印刷したところ、高精度の印刷画像が得ら
れた。When this ion generator was attached to an ionographic printer and an image was printed, a highly accurate printed image was obtained.
実施例2
水溶性のアニオン系アクリル樹脂として知られているコ
ータツクスWE804 (商品名、東し社製)100部
に、芳香族ヒドロキシエーテル60部、イオン交換水1
00部、トリエチルアミン2部を加え、還流器付き反応
釜中て充分に攪拌し、乳化させながら酸化チタン粉末2
00部を少しづつ加え、混合した。100℃に加熱し、
水分か15%になるまで濃縮し、誘電体ペーストを得た
。Example 2 100 parts of Kotax WE804 (trade name, manufactured by Toshisha), which is known as a water-soluble anionic acrylic resin, 60 parts of aromatic hydroxy ether, and 1 part of ion-exchanged water were added.
00 parts and 2 parts of triethylamine were added, and the titanium oxide powder 2
00 parts were added little by little and mixed. Heat to 100℃,
The water content was concentrated to 15% to obtain a dielectric paste.
なお、酸化チタン粉末は混合前にアクリルオリゴマーの
薄い溶液や界面活性剤中に浸し、酸化チタン粉末粒子の
表面を処理しておくと、均一な分散が容易となる。Note that uniform dispersion can be facilitated by soaking the titanium oxide powder in a dilute solution of acrylic oligomer or a surfactant to treat the surface of the titanium oxide powder particles before mixing.
その後、実施例1と同様の手順で、誘電体ペーストを第
1の電極用の厚さ5μmの銅シート上に20〜40μm
の厚さに塗布し、塗膜か乾燥し始めないうちに、10分
間遠心分離機にかけて脱泡し、均一な厚さの誘電体層を
形成した。Thereafter, in the same manner as in Example 1, a dielectric paste was applied to a thickness of 20 to 40 μm on a 5 μm thick copper sheet for the first electrode.
Before the coating film began to dry, it was degassed by centrifugation for 10 minutes to form a dielectric layer of uniform thickness.
誘電体層を乾燥後、誘電体表面をカルピトールアセテー
トとプロピオン酸エチルの1部1混合物で湿らせ、この
上に第2の電極用の厚さ5μmの銅シートを重ね、圧力
を均等にかけて静置した。After drying the dielectric layer, the dielectric surface is moistened with a 1 part mixture of carpitol acetate and ethyl propionate, a 5 μm thick copper sheet for the second electrode is placed on top of this, and pressure is applied evenly to keep it static. I placed it.
加圧後1時間で圧力を解放し、150℃に加熱すること
により誘電体層を硬化させた。なお、150℃に耐える
材質の加圧材を用い、加圧したまま加熱硬化をおこなう
ごとも可能である。One hour after pressurization, the pressure was released, and the dielectric layer was cured by heating to 150°C. Note that it is also possible to use a pressurizing material that can withstand 150° C. and perform heat curing while being pressurized.
次に、実施例1と同様にして第1及び第2の電極用の銅
シートを同時に又は片方づつエツチングによりパターニ
ングし、静電記録ヘッドとして作用するイオン発生装置
を得た。Next, in the same manner as in Example 1, the copper sheets for the first and second electrodes were patterned by etching simultaneously or one by one to obtain an ion generator functioning as an electrostatic recording head.
このイオン発生装置をイオノグラフィツクプリンタに装
着し、画像を印刷したところ、実施例1と同様、高精度
の印刷画像か得られた。When this ion generator was attached to an ionographic printer and an image was printed, a highly accurate printed image was obtained as in Example 1.
[発明の効果コ
以上説明したように、本発明では、誘電体層の形成に誘
電体粉末が分散されたエマルジョン型の塗料即ち誘電体
ペーストを用いているため、遠心回転により脱泡を非常
に容易に行うことが出来、その結果均一な厚さてかつ均
質な誘電体層の形成が可能である。また、遠心回転を採
用しているため誘電体粉末か下部(第1の電極側)に、
ビヒクルが上部に集まることから、誘電体層上面の多少
の凹凸はドツト濃度に影響せず、そのため、高精度のド
ツト潜像を形成可能な記録ヘッドの製造が可能である。[Effects of the Invention] As explained above, in the present invention, since an emulsion-type paint in which dielectric powder is dispersed, that is, a dielectric paste, is used to form the dielectric layer, degassing is greatly improved by centrifugal rotation. This can be easily carried out, and as a result, it is possible to form a dielectric layer of uniform thickness and homogeneity. In addition, since centrifugal rotation is used, the dielectric powder is placed at the bottom (first electrode side).
Since the vehicle gathers at the top, slight irregularities on the top surface of the dielectric layer do not affect the dot density, making it possible to manufacture a recording head capable of forming a highly accurate dot latent image.
更に、第2の電極はビヒクル濃度の高い面に積層される
ため、接着剤を用いることなく強固な接着か可能であり
、加工が非常に簡単となる。更にまた、誘電体ペースト
は水性であるため、有機溶剤型塗料に比べ乾燥速度が遅
く、表皮のみか先に硬化して内部の乾燥が阻害されると
いう現象か生しない。その結果、均質な誘電体層か得ら
れる。Furthermore, since the second electrode is laminated on the surface with a high vehicle concentration, strong adhesion is possible without using an adhesive, and processing is extremely simple. Furthermore, since the dielectric paste is water-based, the drying speed is slower than that of organic solvent-based paints, and there is no possibility that only the outer layer will harden first, inhibiting internal drying. As a result, a homogeneous dielectric layer is obtained.
以上のように、本発明によると、実質的に均質かつ膜厚
か均一な誘電体層が形成可能であり、それによって高精
度のドツト潜像を形成可能な静電記録用イオン発生装置
を得ることが可能である。As described above, according to the present invention, it is possible to form a dielectric layer that is substantially homogeneous and has a uniform thickness, thereby obtaining an ion generator for electrostatic recording that can form a dot latent image with high precision. Is possible.
第1図は本発明の一実施例に係るイオン発生装置の断面
図、第2図はその斜視図である。
1・・・第1の電極、2・・・誘電体層、3・・・第2
の電極、4・・・絶縁体層、5・・・第3の電極。
出願人代理人 弁理士 坪井 淳
第1 図
第21!IFIG. 1 is a sectional view of an ion generator according to an embodiment of the present invention, and FIG. 2 is a perspective view thereof. DESCRIPTION OF SYMBOLS 1... First electrode, 2... Dielectric layer, 3... Second
4... Insulator layer, 5... Third electrode. Applicant's agent Patent attorney Jun Tsuboi Figure 21! I
Claims (3)
に誘電体粉末を分散させたエマルジョン型誘電体ペース
トを塗布する工程、誘電体ペーストが塗布された第1の
電極用シートを遠心回転させる工程、塗布層の上に第2
の電極用シートを載置し、圧着接合する工程、及び前記
第1及び第2の電極用シートを所定パターンにパターニ
ングして第1及び第2の電極を形成する工程を具備する
イオンフロー静電記録用イオン発生装置の製造方法。(1) Step of applying an emulsion type dielectric paste in which dielectric powder is dispersed in a paint vehicle to one side of the first electrode sheet, and centrifuging the first electrode sheet coated with the dielectric paste. Rotating process, a second layer on top of the coating layer
an ion flow electrostatic method comprising the steps of: placing and press-bonding the first and second electrode sheets; and patterning the first and second electrode sheets into a predetermined pattern to form first and second electrodes. A method for manufacturing a recording ion generator.
面を溶剤で処理するか、又は前記遠心回転後の塗布層表
面を加熱処理ことにより、塗布層表面を活性化すること
を特徴とする請求項1に記載のイオンフロー静電記録用
イオン発生装置の製造方法。(2) After drying the applied layer after the centrifugal rotation, the surface of the applied layer is activated by treating the surface of the applied layer with a solvent or by heating the applied layer surface after the centrifugal rotation. The method for manufacturing an ion generator for ion flow electrostatic recording according to claim 1.
分散させた誘電体層を介在させてなるイオンフロー静電
記録用イオン発生装置であって、前記誘電体層中の誘電
体粉末は第1の電極側において高濃度であり、第2の電
極側において低濃度であることを特徴とするイオンフロ
ー静電記録用イオン発生装置。(3) An ion generator for ion flow electrostatic recording comprising a dielectric layer having dielectric powder dispersed therebetween between a first electrode and a second electrode, wherein An ion generator for ion flow electrostatic recording, characterized in that the dielectric powder has a high concentration on the first electrode side and a low concentration on the second electrode side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28785690A JPH04161360A (en) | 1990-10-25 | 1990-10-25 | Ion generating device for electrostatic recording and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28785690A JPH04161360A (en) | 1990-10-25 | 1990-10-25 | Ion generating device for electrostatic recording and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04161360A true JPH04161360A (en) | 1992-06-04 |
Family
ID=17722656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28785690A Pending JPH04161360A (en) | 1990-10-25 | 1990-10-25 | Ion generating device for electrostatic recording and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04161360A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5601684A (en) * | 1992-09-03 | 1997-02-11 | Olympus Optical Co., Ltd. | Method for manufacturing an ion flow electrostatic recording head |
-
1990
- 1990-10-25 JP JP28785690A patent/JPH04161360A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5601684A (en) * | 1992-09-03 | 1997-02-11 | Olympus Optical Co., Ltd. | Method for manufacturing an ion flow electrostatic recording head |
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