JPH06258849A - Electrostatic recording body - Google Patents

Electrostatic recording body

Info

Publication number
JPH06258849A
JPH06258849A JP6592393A JP6592393A JPH06258849A JP H06258849 A JPH06258849 A JP H06258849A JP 6592393 A JP6592393 A JP 6592393A JP 6592393 A JP6592393 A JP 6592393A JP H06258849 A JPH06258849 A JP H06258849A
Authority
JP
Japan
Prior art keywords
dielectric layer
resin
pigment
type resin
recording
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
Application number
JP6592393A
Other languages
Japanese (ja)
Inventor
Tomotsugu Takahashi
友嗣 高橋
Shiro Nakano
四郎 中野
Mitsuhiro Yabuuchi
三弘 籔内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Oji Paper Co Ltd
Original Assignee
New Oji Paper Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by New Oji Paper Co Ltd filed Critical New Oji Paper Co Ltd
Priority to JP6592393A priority Critical patent/JPH06258849A/en
Publication of JPH06258849A publication Critical patent/JPH06258849A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain vivid color tone and preferable feeling by applying the coating consisting essentially of a crosslinking type resin pigment and a liq. type resin, drying and solidifying to form a dielectric layer. CONSTITUTION:In the electrostatic recording body having a conductive supporting body and the dielectric layer formed on the one surface of the conductive supporting body, the dielectric layer is formed by applying the coating consisting essentially of the crosslinking type resin pigment and the liq. type resin on the supporting body and drying.solidifying. In this case, as the refractive index of the crosslinking type resin pigment forming the dielectric layer and the liq. type resin is near each other, and the dielectric layer seems to be formed from only the clear resin including no pigment, and the resin is not a emulsion but a soln, the uniform dielectric layer which hardly causes the defect of a coated film in the case of film forming and has no clouding of the coated film due to a surfactant. Further at this time, an uncrosslinking resin pigment is not preferable, because the pigment dissolves to the solvent as the solvent of the liq. type resin belongs to an oil series and the spacer function can not be expected.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、静電記録体に関するも
のであり、特にCAD(Computer Aided De-sign)、D
TP(Desk Top Publishing )等のシステムにおいてカ
ラー図面を出力させる静電転写方式のプリンター・プロ
ッターに適した静電記録体に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic recording body, and particularly CAD (Computer Aided De-sign), D
The present invention relates to an electrostatic recording body suitable for an electrostatic transfer printer / plotter that outputs a color drawing in a system such as TP (Desk Top Publishing).

【0002】[0002]

【従来の技術】静電記録体は、導電処理を施した導電性
支持体上に絶縁性樹脂と顔料からなる誘電層を設けてな
るものであり、誘電層面の表面あるいは両面から電圧を
印加して静電潜像を形成し、トナー(着色粉末あるいは
液体現像剤)により現像した後、熱、圧力、乾燥等によ
りトナーを定着させて記録を得るものである。
2. Description of the Related Art An electrostatic recording medium is one in which a dielectric layer made of an insulating resin and a pigment is provided on a conductive support which has been subjected to a conductive treatment, and a voltage is applied from the surface of the dielectric layer or from both sides. An electrostatic latent image is formed by developing the toner with a toner (colored powder or liquid developer), and then the toner is fixed by heat, pressure, drying or the like to obtain a record.

【0003】静電記録体は、記録速度、記録保存性が優
れており、16ドット/mmの高解像度の記録電極を使用
することにより解像度の点でも優れた特徴を有する。ま
た、CAD用の大型プロッターとして、静電プロッター
はペンプロッターに比べ記録スピードが速く、大量の図
面を出力する場合に好適である。さらに近年、カラーC
ADプロッターとして建築物、精密機器、集積回路その
他の設計図作成にとどまらず、審美的な絵画、写真、印
刷物の拡大複写、コンピューターグラフィックスの出力
等に利用されている。
The electrostatic recording body is excellent in recording speed and recording storability, and is also excellent in terms of resolution by using a recording electrode having a high resolution of 16 dots / mm. Further, as a large plotter for CAD, an electrostatic plotter has a faster recording speed than a pen plotter and is suitable for outputting a large number of drawings. More recently, color C
As an AD plotter, it is used not only for making architectural drawings, precision instruments, integrated circuits, and other design drawings, but also for aesthetic paintings, photographs, enlarged copies of printed materials, and output of computer graphics.

【0004】この場合、画像の均一性が良好で、濃度の
高い記録が得られることが必要であるにとどまらず、鮮
明な色調や、触れたとき等の好ましい風合いが望まれ
る。鮮明な色調と好ましい地肌を得るために、屈折率
1.4以上、粒径1μm以上20μm以下の透明球形粒
子を誘電層中に含有させることが提案されている(特開
昭63−291059号公報)。
In this case, it is not only necessary to obtain good image uniformity and high density recording, but also a clear color tone and a desirable texture when touched are desired. In order to obtain a clear color tone and a preferable background, it has been proposed to incorporate transparent spherical particles having a refractive index of 1.4 or more and a particle diameter of 1 μm or more and 20 μm or less into a dielectric layer (Japanese Patent Laid-Open No. 2991059/1988). ).

【0005】ここでは、無機材料の例としてガラスが使
用されているが、ガラスは硬く比重が大きいため以下の
問題、すなわち、誘電層塗料調整の際に、ガラスは破損
しやすく、沈降しやすいこと、記録の際に、プロッター
記録電極部を摩耗し、連続記録に支障をきたすこと、さ
らに、記録紙搬送部分にキズを発生させ、また、湿式ト
ナーによる現像時に誘電層から脱落しやすく記録不良と
なること等の問題があるために好ましくない。
Here, glass is used as an example of the inorganic material, but since glass is hard and has a large specific gravity, the following problem is caused: glass is easily broken and easily settled when the dielectric layer paint is adjusted. During recording, the plotter recording electrode part is abraded, which hinders continuous recording, and scratches occur on the recording paper conveyance portion. It is not preferable because there are problems such as

【0006】有機顔料であるポリメチルメタクリレート
を使用する系では、ポリメチルメタクリレートの耐溶剤
性が劣るため、静電記録用エマルジョンとで誘電層を形
成することとなるが、第一に、アクリルエマルジョンに
含まれている界面活性剤により誘電層の電気抵抗値が低
下し静電潜像記録時の潜像電位を下げ、記録濃度の低下
をきたす問題があるし、また、第二に、エマルジョンは
溶液樹脂と比較して製膜時に欠陥を形成しやすく、現像
時にその欠陥部分から湿式トナーの染み込みを発生し、
記録不良を発生しやすいという問題があるため好ましく
ない。
In a system using polymethylmethacrylate, which is an organic pigment, since the solvent resistance of polymethylmethacrylate is poor, a dielectric layer is formed with an electrostatic recording emulsion. There is a problem that the electric resistance value of the dielectric layer is lowered by the surfactant contained in, and the latent image potential at the time of electrostatic latent image recording is lowered, and the recording density is lowered. Compared with solution resin, defects are more likely to be formed during film formation, and soaking of the wet toner occurs from the defective portion during development,
It is not preferable because there is a problem that a recording defect is likely to occur.

【0007】[0007]

【発明が解決しようとする課題】本発明は前述のような
技術の欠点、つまり、静電プロッターに使用した場合
に、記録濃度の低下や記録不良が発生するという問題点
を解消し、かつ鮮明な色調や好ましい風合いを得る静電
記録体を提供しようというものである。
SUMMARY OF THE INVENTION The present invention solves the drawbacks of the above-mentioned technique, namely, the problem that the recording density is lowered and the recording defect occurs when it is used in an electrostatic plotter, and it is clear. The present invention is intended to provide an electrostatic recording body that achieves various color tones and a favorable texture.

【0008】[0008]

【課題を解決するための手段】本発明者らは、上記の目
的を達成すべく鋭意検討した結果、導電性支持体と、こ
の導電性支持体の一面上に形成される誘電層とを有する
静電記録体において、この誘電層を架橋型樹脂顔料と溶
液型樹脂を主成分として含有する塗料を塗布し、乾燥・
固化して形成することにより、前記のような従来技術の
欠点を解決できることを見出し本発明を完成した。 本
発明により、静電プロッターによる記録において、公知
の顔料成分および樹脂成分からなる静電記録体よりも鮮
明な色調と好ましい風合いが実現できる。
DISCLOSURE OF THE INVENTION As a result of intensive studies aimed at achieving the above object, the present inventors have a conductive support and a dielectric layer formed on one surface of the conductive support. In the electrostatic recording medium, a coating containing a cross-linking resin pigment and a solution-type resin as the main components is applied to this dielectric layer and dried.
The present invention has been completed by finding that it is possible to solve the above-mentioned drawbacks of the prior art by solidifying and forming. According to the present invention, in recording by an electrostatic plotter, a clearer color tone and a preferable texture can be realized as compared with an electrostatic recording body including a known pigment component and resin component.

【0009】本発明の記録体の色調が鮮明で風合いが好
ましい理由は、以下のように推測される。すなわち、誘
電層を形成する架橋型樹脂顔料と溶液型樹脂の屈折率が
近いため、誘電層が顔料を含まないクリヤーな樹脂のみ
から形成されているように見え、また、樹脂がエマルジ
ョンではなく溶液のため、成膜時に塗膜欠陥が極めて発
生しにくく、界面活性剤による塗膜の曇りもない均一な
誘電層が得られる。このような誘電層を持つ静電記録体
を静電プロッターで記録した場合、記録濃度が高いばか
りでなく、白紙部の白色度も高いため色調が鮮明にな
り、かつ、手触りはマット調の好ましい風合いのものと
なる。
The reason why the recording material of the present invention has a clear color tone and a favorable texture is presumed as follows. That is, since the cross-linking resin pigment forming the dielectric layer and the solution-type resin have similar refractive indexes, the dielectric layer seems to be formed only from a clear resin that does not contain a pigment, and the resin is not an emulsion but a solution. Therefore, coating film defects are extremely unlikely to occur during film formation, and a uniform dielectric layer can be obtained without clouding of the coating film due to the surfactant. When an electrostatic recording material having such a dielectric layer is recorded by an electrostatic plotter, not only the recording density is high, but also the whiteness of the white paper portion is high, so that the color tone becomes clear and the touch is preferable to be matte. It becomes a texture.

【0010】架橋していない樹脂顔料は、溶液型樹脂の
溶媒が油系であるため、溶媒に溶解してしまい、顔料の
スペーサー機能が期待できず好ましくない。また、溶媒
に不溶の無機顔料では不透明なものが多く、鮮明な色調
が期待できないし、ガラスのような透明なものでもプロ
ッター記録電極部や記録紙搬送部分を摩耗してしまうた
め好ましくない。
Non-crosslinked resin pigments are not preferable because the solvent of the solution-type resin is an oil type, so that they dissolve in the solvent and the spacer function of the pigment cannot be expected. Inorganic pigments that are insoluble in solvents are often opaque, so a clear color tone cannot be expected, and even transparent materials such as glass will wear the plotter recording electrode portion and recording paper conveying portion, which is not preferable.

【0011】溶液型樹脂ではないエマルジョン樹脂は、
含まれている界面活性剤によって誘電層の電気抵抗値を
低下させ、曇りを発生し、さらに、塗膜欠陥を形成しや
すく、これらはすべて記録品質の低下原因となるため好
ましくない。それ故、本発明においては、導電性支持体
と、この支持体の少なくとも片面に形成される誘電層
を、前述のごとく、架橋型樹脂顔料と溶液型樹脂を主成
分として含有する層とすることを特徴とするものであ
る。
An emulsion resin that is not a solution type resin is
The contained surfactant lowers the electric resistance value of the dielectric layer, causes fogging, and easily forms coating film defects, all of which cause deterioration of recording quality, which is not preferable. Therefore, in the present invention, the conductive support and the dielectric layer formed on at least one surface of the support are, as described above, a layer containing a crosslinkable resin pigment and a solution-type resin as main components. It is characterized by.

【0012】架橋型樹脂顔料は、アクリル酸エステル共
重合体樹脂、メタクリル酸エステル共重合体樹脂、スチ
レン重合体、スチレン−アクリル共重合体樹脂などの樹
脂にジビニル化合物、ジアリル化合物、アルデヒド、尿
素誘導体、グリコール、ジカルボン酸、アミン、ジイソ
シアナート、ビスエポキシ化合物などの架橋剤を樹脂の
50重量%以下添加して乳化重合、懸濁重合すること等
により調製される。
The crosslinkable resin pigments include resins such as acrylic ester copolymer resins, methacrylic ester copolymer resins, styrene polymers and styrene-acrylic copolymer resins, and divinyl compounds, diallyl compounds, aldehydes, urea derivatives. , Glycol, dicarboxylic acid, amine, diisocyanate, and bisepoxy compound are added in an amount of 50% by weight or less of the resin, followed by emulsion polymerization and suspension polymerization.

【0013】架橋剤添加量は誘電層に併用する溶液型樹
脂の溶媒に溶解しない程度にする。これら架橋型樹脂顔
料は単独または併用して用いることが出来る。顔料の平
均粒径は1μm以上20μm以下が好ましい。平均粒径
が1μm未満や20μmを越える場合、誘電層表面とプ
ロッター電極との距離が適度に保たれず、放電不良をき
たし、記録品質が低下するので好ましくない。
The amount of the crosslinking agent added is such that it does not dissolve in the solvent of the solution-type resin used together with the dielectric layer. These crosslinkable resin pigments can be used alone or in combination. The average particle size of the pigment is preferably 1 μm or more and 20 μm or less. If the average particle size is less than 1 μm or more than 20 μm, the distance between the surface of the dielectric layer and the plotter electrode cannot be maintained at an appropriate level, discharge failure occurs, and recording quality deteriorates, which is not preferable.

【0014】架橋型樹脂顔料とともに誘電層に用いられ
る溶液型樹脂としては公知の樹脂が使用できる。溶液型
樹脂としては、酢酸ビニル重合体樹脂、エチレン−酢酸
ビニル共重合体樹脂、塩化ビニル重合体樹脂、塩化ビニ
ル−酢酸ビニル共重合体樹脂、塩化ビニリデン重合体樹
脂、塩化ビニル−塩化ビニリデン共重合体樹脂、アクリ
ル酸エステル共重合体樹脂、メタクリル酸エステル共重
合体樹脂、ブチラール重合体樹脂、シリコン樹脂、ポリ
エステル樹脂、フッ化ビニリデン重合体樹脂、ニトロセ
ルロース樹脂、酢酸セルロース樹脂、スチレン重合体樹
脂、スチレン−アクリル共重合体樹脂などの単独、又は
2種類以上の混合物が使用できる。
Known resins can be used as the solution type resin used in the dielectric layer together with the crosslinkable resin pigment. As the solution type resin, vinyl acetate polymer resin, ethylene-vinyl acetate copolymer resin, vinyl chloride polymer resin, vinyl chloride-vinyl acetate copolymer resin, vinylidene chloride polymer resin, vinyl chloride-vinylidene chloride copolymer Combined resin, acrylic ester copolymer resin, methacrylic ester copolymer resin, butyral polymer resin, silicone resin, polyester resin, vinylidene fluoride polymer resin, nitrocellulose resin, cellulose acetate resin, styrene polymer resin, A styrene-acrylic copolymer resin or the like can be used alone, or a mixture of two or more kinds can be used.

【0015】本発明における誘電層に使用される架橋型
樹脂顔料の合計量は、全塗料固形分の2〜50重量%の
範囲内にあることが好ましく、溶液型樹脂の合計量は9
8〜50重量%の範囲内にあることが好ましい。全架橋
型樹脂顔料と全溶液型樹脂がこの範囲を逸脱すると、プ
ロッター記録におけるトナー尾引きや画像の荒れが発生
し、また、鮮明な色調と好ましい風合いが得られず好ま
しくない。
The total amount of the crosslinkable resin pigment used in the dielectric layer in the present invention is preferably in the range of 2 to 50% by weight of the total coating solids, and the total amount of the solution type resin is 9%.
It is preferably in the range of 8 to 50% by weight. If the total cross-linking resin pigment and the total solution-type resin deviate from this range, toner tailing and image roughness in plotter recording occur, and clear color tone and favorable texture cannot be obtained, which is not preferable.

【0016】上記誘電層の架橋型樹脂顔料および溶液型
樹脂は、すでに工業化されている方法で分散、塗料化で
きる。すなわち、架橋型樹脂顔料と溶液型樹脂および溶
媒を所定の比率で混合し、分散媒とともに攪はん機、ボ
ールミル、サンドミル、アトライタなど適当な分散機で
分散、調整することで塗料化することができる。
The crosslinkable resin pigment and the solution type resin of the dielectric layer can be dispersed and made into a paint by a method which has already been industrialized. That is, a cross-linking resin pigment, a solution-type resin and a solvent are mixed in a predetermined ratio, and a dispersion medium and a suitable dispersing machine such as a stirrer, a ball mill, a sand mill and an attritor are dispersed and adjusted to form a coating material. it can.

【0017】導電性支持体上への誘電層の形成方法は、
通常の塗工方式、すなわちメイヤーバー方式、グラビア
ロール方式、リバースロール方式、ブレード方式、スリ
ットダイ方式等が利用できる。
The method for forming the dielectric layer on the conductive support is as follows:
Usual coating methods such as Meyer bar method, gravure roll method, reverse roll method, blade method, slit die method, etc. can be used.

【0018】誘電層を塗工する導電性支持体は、紙、織
布、不織布、プラスチックフィルム、ポリエステルフィ
ルム、ポリプロピレンフィルム、ポリエチレンフィル
ム、合成紙、など従来使用されていた各種の支持体上に
カチオン系導電性樹脂、例えば、ポリビニルベンジルト
リメチルアンモニウムクロライド、ポリジメチルジアリ
ルアンモニウムクロライド、スチレンアクリル酸トリメ
チルアミノエチルクロライド共重合体などの第4級アン
モニウム塩や、アニオン系導電性樹脂、例えばポリスチ
レンスルホン酸塩、ポリアクリル酸塩、ポリビニルスル
ホネートなどの他、金属酸化物半導体、例えば導電性酸
化亜鉛、導電性酸化第二錫、導電性酸化インジウム、導
電性チタン酸アルカリ金属、カーボンブラックあるいは
これら導電性物質で表面がコ−ティングされた無機/有
機顔料などを単独または併用して、必要により顔料また
は接着剤を混合して導電層を形成したものが使用でき
る。
The conductive support on which the dielectric layer is coated is a cation on a variety of conventionally used supports such as paper, woven fabric, non-woven fabric, plastic film, polyester film, polypropylene film, polyethylene film, and synthetic paper. Quaternary ammonium salts such as polyvinyl benzyl trimethyl ammonium chloride, polydimethyl diallyl ammonium chloride, styrene acrylic acid trimethylaminoethyl chloride copolymer, and anionic conductive resins such as polystyrene sulfonate, In addition to polyacrylates, polyvinyl sulfonates, etc., metal oxide semiconductors such as conductive zinc oxide, conductive stannic oxide, conductive indium oxide, conductive alkali metal titanate, carbon black or conductive materials thereof Face co - like alone or in combination coating inorganic / organic pigments, that a conductive layer is formed by mixing a pigment or an adhesive can be used if necessary.

【0019】以上の条件を満たす記録体は、静電プロッ
ターによる記録において、公知の顔料成分および樹脂成
分からなる静電記録体よりも鮮明な色調と好ましい風合
いが実現できる。
The recording medium satisfying the above conditions can realize a clearer color tone and a preferable texture in the recording by the electrostatic plotter as compared with the electrostatic recording medium composed of the known pigment component and resin component.

【0020】[0020]

【実施例】以下、実施例によって本発明をさらに具体的
に説明するが、本発明はこれによって制限されるもので
はない。なお、実施例および比較例中の「部」はすべて
「重量部」である。
The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. All "parts" in Examples and Comparative Examples are "parts by weight".

【0021】実施例1.坪量45g/m2の上質紙の片面
に下記に示す組成を有する混合物を攪はん機で混合して
得られた導電性塗料を乾燥後の塗布量が5.0g/m2
なるように塗布し、乾燥・固化して導電層とした。導電
層と反対側には、同じ塗料を乾燥後の塗布量が2.0g
/m2となるように塗布し、乾燥・固化した。スーパーカ
レンダーで平滑処理を行ない、導電層の王研式平滑度が
500秒となるようにして導電性支持体を得た。
Example 1 A conductive paint obtained by mixing a mixture having the composition shown below on one side of a high-quality paper having a basis weight of 45 g / m 2 by a stirrer so that the applied amount after drying is 5.0 g / m 2 Was applied, dried and solidified to form a conductive layer. On the side opposite to the conductive layer, the same amount of coating after drying is 2.0g
It was applied so as to be / m 2 and dried and solidified. Smoothing treatment was carried out with a super calender so that the conductive layer had an Oken type smoothness of 500 seconds to obtain a conductive support.

【0022】 導電性塗料 カチオン系導電性樹脂(ポリビニルベンジルトリメチルアンモニウムクロラ イド)(CS−6300H.三洋化成工業製.固形分34%) 150部 炭酸カルシウム(ピーライト#500. 日東粉化製) 30部 アクリルエマルジョン(モビニール630.ヘキスト合成製. 固形分50%) 40部 Conductive paint Cationic conductive resin (polyvinylbenzyltrimethylammonium chloride) (CS-6300H. Sanyo Kasei Co., Ltd., solid content 34%) 150 parts Calcium carbonate (Pelite # 500. Nitto Koki Co., Ltd.) 30 Part Acrylic emulsion (Movinyl 630. Hoechst Synthetic. Solid content 50%) 40 parts

【0023】上記導電性支持体の導電層上に、次に示す
配合割合にてサンドグラインダ−で分散して得られた誘
電層塗料(1)を、乾燥後の塗工量が3.0g/m2とな
るように塗布し、乾燥・固化して静電記録体を得た。 誘電層塗料(1) 架橋型ポリメタクリル酸メチル真球状粒子(テクポリマーMBX −5. 平均粒径5μm.積水化成品工業製) 10部 ポリエステル樹脂溶液(バイロン200.東洋紡績製. 固形分30%.溶媒はトルエン/MEK=1/1) 225部 トルエン 90部
On the conductive layer of the above-mentioned conductive support, the dielectric layer coating material (1) obtained by dispersing with a sand grinder in the following blending ratio was applied at a coating amount after drying of 3.0 g / An electrostatic recording material was obtained by applying so as to have a size of m 2 , drying and solidifying. Dielectric layer coating (1) Cross-linked polymethylmethacrylate true spherical particles (Techpolymer MBX-5. Average particle size 5 μm. Sekisui Plastics Co., Ltd.) 10 parts Polyester resin solution (Vylon 200. Toyobo. Solid content 30% The solvent is toluene / MEK = 1/1) 225 parts toluene 90 parts

【0024】比較例1.実施例1と同じ導電性支持体の
導電層上に次に示す配合割合にてサンドグラインダーで
分散して得られた誘電層塗料(2)を乾燥後の塗工量が
3.0g/m2となるように塗布し、乾燥・固化して静電
記録体を得た。 誘電層塗料(2) ポリメタクリル酸メチル真球状粒子(テクポリマーMB−4. 平均粒径4μm.積水化成品工業製) 10部 ポリエステル樹脂溶液(バイロン200.東洋紡績製. 固形分30%.溶媒はトルエン/MEK=1/1) 225部 トルエン 90部
Comparative Example 1 The dielectric layer coating material (2) obtained by dispersing with a sand grinder on the conductive layer of the same conductive support as in Example 1 in the following mixing ratio had a coating amount of 3.0 g / m 2 after drying. To obtain an electrostatic recording material by drying and solidifying. Dielectric layer coating (2) Polymethylmethacrylate true spherical particles (Techpolymer MB-4. Average particle size 4 μm. Sekisui Plastics Co., Ltd.) 10 parts Polyester resin solution (Vylon 200. Toyobo. Solid content 30%. Solvent Is toluene / MEK = 1/1) 225 parts Toluene 90 parts

【0025】比較例2.実施例1と同じ導電性支持体の
導電層上に次に示す配合割合にてサンドグラインダーで
分散した誘電層塗料(3)を乾燥後の塗工量が3.0g
/m2となるように 塗布し、乾燥・固化して静電記録体
を得た。 誘電層塗料(3) 架橋型ポリメタクリル酸メチル真球状粒子(テクポリマーMBX −5. 平均粒径5μm.積水化成品工業製) 10部 水分散ポリエステル溶液(バイロナールMD1200.東洋紡績製. 固形分34%) 265部 水 12部
Comparative Example 2 The coating amount after drying of the dielectric layer coating material (3) dispersed on a conductive layer of the same conductive support as in Example 1 by a sand grinder in the following mixing ratio was 3.0 g.
It was applied so as to be / m 2, and dried and solidified to obtain an electrostatic recording material. Dielectric layer coating (3) Crosslinked polymethylmethacrylate true spherical particles (Techpolymer MBX-5. Average particle size 5 μm. Sekisui Plastics Co., Ltd.) 10 parts Water-dispersed polyester solution (Vylonal MD1200. Toyobo. Solid content 34 %) 265 parts Water 12 parts

【0026】比較例3.実施例1と同じ導電性支持体の
導電層上に次に示す配合割合にてサンドグラインダーで
分散した誘電層塗料(4)を乾燥後の塗工量が3.0g
/m2となるように塗布し、乾燥・固化して静電記録体を
得た。 誘電層塗料(4) カオリナイト(ハイドライトフラットD.平均粒径5μm. ドライブラッジカオリン製) 10部 ポリエステル樹脂溶液(バイロン200.東洋紡績製. 固形分30%.溶媒はトルエン/MEK=1/1) 225部 トルエン 90部
Comparative Example 3 A dielectric layer coating material (4) dispersed by a sand grinder in the following mixing ratio on the conductive layer of the same conductive support as in Example 1 had a coating amount after drying of 3.0 g.
It was applied so as to be / m 2 , dried and solidified to obtain an electrostatic recording material. Dielectric Layer Coating (4) Kaolinite (Hydrite Flat D. Average particle size 5 μm. Made by Driveludge Kaolin) 10 parts Polyester resin solution (Vylon 200. Toyobo. Solid content 30%. Solvent: toluene / MEK = 1 / 1) 225 parts Toluene 90 parts

【0027】上記実施例1および比較例1〜3の記録体
を20℃、65%RHの環境で2時間調湿後、市販のカ
ラー静電プロッター(ドラステム8770,東洋電機
製)によりカラー画像を記録した結果を表−1に示す。
記録結果の鮮明度の評価は次の方法によった。 鮮明度:記録カラー画像の色調が良好で鮮明であるもの
から順に○、△、×、××とした。
The recording materials of Example 1 and Comparative Examples 1 to 3 were conditioned at 20 ° C. and 65% RH for 2 hours, and then color images were obtained by a commercially available color electrostatic plotter (DraStem 8770, manufactured by Toyo Denki Co., Ltd.). The recorded results are shown in Table 1.
The sharpness of the recording result was evaluated by the following method. Sharpness: ○, Δ, ×, and XX are listed in order from the one in which the color tone of the recorded color image is good and clear.

【0028】[0028]

【表1】 [Table 1]

【0029】誘電層の樹脂顔料として架橋型樹脂顔料を
使用し、かつ、溶液型樹脂を併用している実施例1のも
のは、記録濃度、鮮明度、その他の記録品質共、高い評
価を得たのに対して、架橋していない樹脂顔料を使用し
た比較例1のものでは顔料が溶液型樹脂等の溶媒に溶解
して顔料としての機能を失う結果、各評価項目において
低い評価を得ているし、又、溶液型に代えて水分散型樹
脂を用いている比較例2および無機顔料であるカオリナ
イトを使用した比較例3のものも鮮明度が劣るのに加え
て、記録濃度も実施例1のものに比べて劣る結果となっ
ている。
In Example 1 in which a cross-linking resin pigment is used as the resin pigment of the dielectric layer and a solution type resin is also used, the recording density, sharpness and other recording quality are highly evaluated. On the other hand, in the case of Comparative Example 1 using the resin pigment which is not cross-linked, the pigment loses its function as a pigment by dissolving in a solvent such as a solution type resin, and as a result, a low evaluation is obtained in each evaluation item. In addition, the comparative example 2 in which a water-dispersible resin is used instead of the solution type and the comparative example 3 in which kaolinite as an inorganic pigment is used are inferior in sharpness, and recording density is also implemented. The result is inferior to that of Example 1.

【0030】[0030]

【発明の効果】本発明により、静電プロッターによる記
録において、公知の顔料および樹脂成分からなる静電記
録体よりも鮮明な色調と好ましい風合いを得ることが可
能となった。
According to the present invention, in recording by an electrostatic plotter, it becomes possible to obtain a clearer color tone and a preferable texture than an electrostatic recording material comprising a known pigment and resin component.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 導電性支持体と、この導電性支持体の一
面上に形成される誘電層とを有し、この誘電層が架橋型
樹脂顔料と溶液型樹脂を主成分として含有する塗料を塗
布し、乾燥・固化して形成されていることを特徴とする
静電記録体。
1. A coating material comprising a conductive support and a dielectric layer formed on one surface of the conductive support, the dielectric layer containing a cross-linking resin pigment and a solution-type resin as main components. An electrostatic recording material characterized by being formed by applying, drying and solidifying.
JP6592393A 1993-03-03 1993-03-03 Electrostatic recording body Pending JPH06258849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6592393A JPH06258849A (en) 1993-03-03 1993-03-03 Electrostatic recording body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6592393A JPH06258849A (en) 1993-03-03 1993-03-03 Electrostatic recording body

Publications (1)

Publication Number Publication Date
JPH06258849A true JPH06258849A (en) 1994-09-16

Family

ID=13300985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6592393A Pending JPH06258849A (en) 1993-03-03 1993-03-03 Electrostatic recording body

Country Status (1)

Country Link
JP (1) JPH06258849A (en)

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