JPH05281852A - Triboelectrication member for positive charger toner - Google Patents

Triboelectrication member for positive charger toner

Info

Publication number
JPH05281852A
JPH05281852A JP4109171A JP10917192A JPH05281852A JP H05281852 A JPH05281852 A JP H05281852A JP 4109171 A JP4109171 A JP 4109171A JP 10917192 A JP10917192 A JP 10917192A JP H05281852 A JPH05281852 A JP H05281852A
Authority
JP
Japan
Prior art keywords
group
formula
toner
compound
chemical
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
JP4109171A
Other languages
Japanese (ja)
Inventor
Mitsutoshi Anzai
光利 安西
Yuji Matsuura
裕司 松浦
Osamu Mukushiro
修 椋代
Kayoko Watanabe
香代子 渡辺
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.)
Hodogaya Chemical Co Ltd
Original Assignee
Hodogaya Chemical 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 Hodogaya Chemical Co Ltd filed Critical Hodogaya Chemical Co Ltd
Priority to JP4109171A priority Critical patent/JPH05281852A/en
Publication of JPH05281852A publication Critical patent/JPH05281852A/en
Pending legal-status Critical Current

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  • Developing Agents For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)

Abstract

PURPOSE:To obtain positive electrifying property with sufficient mechanical strength and no deterioration of performance and to enable coating of a carrying member and triboelectrification member by incorporating a specified compd. into at least the surface of a triboelectrification member. CONSTITUTION:This triboelectrification member contains a compd. expressed by formula I in at least its surface. In formula, X, Y are independently hydrogen atoms or groups expressed by formula II. In formula II, D is an electron- donating group, R1, R2 are independently hydrogen atoms, halogen atoms, alkyl groups, cycloalkyl groups, aralkyl groups, aryl groups, acyl groups, cyano groups or nitro groups. The compd. expressed by formula I is dissolved or dispersed to prepare a coating liquid, which can be applied on the base body of a triboelectrification member by dipping, spraying, brush coating, etc., and dried to obtain the triboelectrification member for a positive charge toner. Or, such a resin in which this compd. is dispersed is molded to obtain a triboelectrification member for a positive charge toner such as a doctor blade.

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、電子写真、静電記録な
どにおいて静電潜像を現像するために用いられる乾式ト
ナーに摩擦により帯電を付与するためのキャリアや現像
スリーブ、ドクターブレード等の搬送部材やその他の摩
擦帯電付与部材に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier, a developing sleeve, a doctor blade, etc. for imparting an electric charge by friction to a dry toner used for developing an electrostatic latent image in electrophotography, electrostatic recording and the like. The present invention relates to a conveying member and other triboelectric charging members.

【0002】[0002]

【従来の技術】電子写真方式による画像形成プロセスで
は、セレン、セレン合金、硫化カドミウム、アモルファ
スシリコン等の無機感光体や、電荷発生剤と電荷搬送剤
を用いた有機感光体に静電潜像を形成し、これをトナー
により現像、紙やプラスチックフィルムに転写、定着し
て可視画像を得る。
2. Description of the Related Art In an electrophotographic image forming process, an electrostatic latent image is formed on an inorganic photoreceptor such as selenium, a selenium alloy, cadmium sulfide, or amorphous silicon, or an organic photoreceptor using a charge generating agent and a charge carrier. After being formed, this is developed with toner, transferred onto paper or a plastic film, and fixed to obtain a visible image.

【0003】感光体には、その構成により正帯電性と負
帯電性が有り、露光により印字部を静電潜像として残す
場合は逆符号帯電性トナーにより現像し、一方、印字部
を除電して反転現像を行なう場合は同符号帯電性トナー
により現像する。つまり、負帯電性感光体を用いて逆符
号帯電性トナーで現像する場合、及び正帯電性感光体を
用いて反転現像する場合には正帯電性トナーが使用され
る。
The photosensitive member has a positive charging property and a negative charging property depending on its configuration. When the printed portion is left as an electrostatic latent image by exposure, it is developed with a toner of opposite sign charging, while the printed portion is discharged. When reversal development is carried out, the development is carried out with a toner having the same sign. That is, the positively chargeable toner is used when developing with the opposite sign chargeable toner using the negatively chargeable photoreceptor and when performing the reverse development with the positively chargeable photoreceptor.

【0004】トナーはバインダー樹脂と着色剤及びその
他添加剤により構成されるが、望ましい摩擦帯電特性
(帯電速度、帯電レベル、帯電安定性等)や経時安定
性、環境安定性を付与するため、一般に電荷制御剤が使
用されている。正帯電性トナー用に使用される電荷制御
剤としては、ニグロシンに代表されるアジン系染料、ト
リフェニルメタン染料に代表される塩基性染料、塩基性
染料のレーキ化顔料、母骨格に4級アンモニウム残基を
導入した金属錯塩染料、4級アンモニウム塩、4級アン
モニウム塩のレーキ化合物、イミダゾール化合物または
アミノ基を含有するビニル系ポリマーやアミノ基を含有
する縮合系ポリマー等である。
The toner is composed of a binder resin, a colorant and other additives, and is generally used to impart desired triboelectric charging characteristics (charging speed, charging level, charging stability, etc.), stability over time, and environmental stability. Charge control agents are used. Charge control agents used for positively charged toners include azine dyes typified by nigrosine, basic dyes typified by triphenylmethane dye, laked pigments of basic dyes, and quaternary ammonium in the mother skeleton. A metal complex salt dye having a residue introduced therein, a quaternary ammonium salt lake compound, a quaternary ammonium salt lake compound, an imidazole compound, an amino group-containing vinyl polymer, an amino group-containing condensation polymer, or the like.

【0005】しかしながら、乾式トナーには二成分系や
一成分系更に磁性あるいは非磁性と現像方式により各種
のトナーが有り、これらのトナーに満足のいく帯電特性
を付与できる性能を有した電荷制御剤は少なく、実用に
供されているものはごく一部のみである。又、実用に耐
える性能を有すと考えられる電荷制御剤においても、そ
の性能を充分発揮さすにはトナー粒子の表面にその電荷
制御剤がある程度出ている事が好ましく、そのため、ト
ナー同志の衝突、キャリアとの摩擦、その他部材との摩
擦等によりトナー表面から電荷制御剤が脱落し、キャリ
アの汚染やその他部材の汚染が生じる。
However, there are various types of dry toners such as two-component type, one-component type, magnetic or non-magnetic type, and developing type, and a charge control agent having a performance capable of imparting satisfactory charging characteristics to these toners. There are few, and only a few are put to practical use. Further, even in the case of a charge control agent that is considered to have the ability to withstand practical use, it is preferable that the charge control agent is present on the surface of the toner particles to some extent in order to fully exhibit its performance. The charge control agent drops off from the toner surface due to friction with the carrier, friction with other members, and the like, resulting in carrier contamination and contamination of other members.

【0006】その結果、帯電性が低下し、複写枚数の増
加に従い、劣化が進み、画像濃度の低下、再現性の低
下、カブリ等の問題が生じて来る。そこで、トナーへの
帯電付与を電荷制御剤やその他の添加剤で行なうのでは
なく、キャリアや現像スリーブ、ドクターブレード等の
搬送部材やその他の摩擦帯電付与部材により行なう事が
提案されている。この方法によれば、トナーに電荷制御
剤やその他の添加剤を含有させる必要がないので、前記
したキャリアやその他部材の汚染がなく、そのため帯電
性が低下し画像品質が低下していくことがない。
As a result, the charging property is deteriorated, and the deterioration progresses as the number of copies increases, causing problems such as a decrease in image density, a decrease in reproducibility, and fog. Therefore, it is proposed that the toner is not charged by a charge control agent or other additives, but by a carrier member such as a carrier, a developing sleeve or a doctor blade, or another friction charging member. According to this method, since it is not necessary to add a charge control agent or other additives to the toner, there is no contamination of the above-mentioned carrier or other members, so that the charging property is lowered and the image quality is lowered. Absent.

【0007】[0007]

【発明が解決しようとする課題】本発明は、キャリアや
現像用スリーブ、ドクターブレード等の搬送部材やその
他の摩擦帯電付与部材に塗工可能で、且つ機械的に充分
な強度を持ち、これら搬送部材や摩擦帯電付与部材に摩
擦帯電付与性を持たせ、長期間連続使用しても性能の劣
化がなく、トナーに優れた正帯電性を付与することがで
きる正帯電性トナー用摩擦帯電付与部材を提供するもの
である。
DISCLOSURE OF THE INVENTION The present invention can be applied to a carrier, a developing sleeve, a carrying member such as a doctor blade, and other triboelectrification imparting members, and has a mechanically sufficient strength. The member or the triboelectrification imparting member has the triboelectrification imparting property, the performance is not deteriorated even when it is continuously used for a long time, and the toner is imparted with excellent positive electrifying property. Is provided.

【0008】[0008]

【課題を解決するための手段】本発明者らは、鋭意検討
の結果、キャリアや現像用スリーブ、ドクターブレード
等の搬送部材やその他の摩擦帯電付与部材に塗工可能
で、且つ機械的に充分な強度を持ち、これら搬送部材や
摩擦帯電付与部材に摩擦帯電付与性を持たせ、長期間連
続使用しても性能の劣化がなく、トナーに優れた正帯電
性を付与することができる正帯電性トナー用摩擦帯電付
与部材を発明するに到った。
As a result of earnest studies, the inventors of the present invention have found that they can be applied to carrier members such as carriers, developing sleeves, doctor blades, and other friction charge imparting members, and are mechanically sufficient. A positive charge that has excellent strength and imparts triboelectrification to these conveying members and triboelectrification members so that performance does not deteriorate even after continuous use for a long period of time, and excellent positive chargeability can be imparted to the toner. Has invented a frictional charge imparting member for a conductive toner.

【0009】すなわち、本発明は下記一般式(1)That is, the present invention is represented by the following general formula (1)

【化7】 〔式中、X及びYは、各々独立に、水素原子、[Chemical 7] [In the formula, X and Y are each independently a hydrogen atom,

【化8】 (式中、Dは電子供与性基を表わし、R1 及びR2 は各
々独立に、水素原子、ハロゲン原子、アルキル基、シク
ロアルキル基、アラルキル基、アリール基、アシル基、
シアノ基またはニトロ基を表わす。)、
[Chemical 8] (In the formula, D represents an electron-donating group, R 1 and R 2 are each independently a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, an acyl group,
Represents a cyano group or a nitro group. ),

【化9】 (式中、D及びR1 ,R2 は前記と同じ意味を表わ
す。)、
[Chemical 9] (In the formula, D and R 1 and R 2 have the same meanings as described above.),

【化10】 (式中、D及びR1 ,R2 は前記と同じ意味を表わ
す。)、
[Chemical 10] (In the formula, D and R 1 and R 2 have the same meanings as described above.),

【化11】 (式中、A1 及びA2 は各々独立に水素または電子吸引
性基を表わし、但し、同時に水素ではなく、R3 は水素
原子、アルキル基、シクロアルキル基、アラルキル基、
アリール基、アルコキシ基、ジアルキルアミノ基、ジア
リールアミノ基、ジアラルキルアミノ基またはヒドロキ
シル基を表わす。)または
[Chemical 11] (In the formula, A 1 and A 2 each independently represent hydrogen or an electron-withdrawing group, provided that R 3 is not hydrogen at the same time, and R 3 is a hydrogen atom, an alkyl group, a cycloalkyl group, an aralkyl group,
It represents an aryl group, an alkoxy group, a dialkylamino group, a diarylamino group, a diaralkylamino group or a hydroxyl group. ) Or

【化12】 (式中、A1 及びR3 は前記と同じ意味を表わし、nは
0,1または2を表わし、nが2のとき、R3 はお互に
異っていても良い。)を表わし、但しXとYとは同時に
水素ではなく、Zは水素原子またはアリール基を表わ
す。〕で表わされる化合物を少なくとも表面に含有する
事を特徴とする正帯電性トナー用摩擦帯電付与部材であ
る。
[Chemical 12] (Wherein A 1 and R 3 have the same meanings as described above, n represents 0, 1 or 2, and when n is 2, R 3 may be different from each other), provided that X and Y are not hydrogen at the same time, and Z represents a hydrogen atom or an aryl group. ] A triboelectrification imparting member for a positively charging toner, characterized in that it contains at least the compound represented by the above formula.

【0010】本発明の摩擦帯電付与部材において、少な
くとも表面に含有される前記一般式(1)で表わされる
化合物は公知の合成法により製造される。
In the frictional charge imparting member of the present invention, at least the compound represented by the general formula (1) contained on the surface is produced by a known synthesis method.

【0011】該化合物は単独で用いても良いし、2種以
上を併用しても良い。又、他の電荷制御剤やその他の添
加剤と併用することもできる。これらの化合物は、その
まま溶剤に溶解あるいは分散して用いても良く、または
樹脂中に分散して用いても良い。この場合、樹脂として
は、例えばシリコーン樹脂、フッ素樹脂、ポリアクリル
酸エステル、ポリメタクリル酸エステル、ポリスチレ
ン、ポリブタジエン、ポリエステル、ポリウレタン、ポ
リアミド、エポキシ樹脂、塩素化パラフィン、フェノー
ル樹脂、ポリカーボネート等及びこれらの共重合体等で
あり、単独あるいは2種以上混合して使用される。
The compound may be used alone or in combination of two or more kinds. Further, they can be used in combination with other charge control agents and other additives. These compounds may be dissolved or dispersed in a solvent as they are, or may be dispersed in a resin for use. In this case, as the resin, for example, silicone resin, fluorine resin, polyacrylic acid ester, polymethacrylic acid ester, polystyrene, polybutadiene, polyester, polyurethane, polyamide, epoxy resin, chlorinated paraffin, phenol resin, polycarbonate, and the like It is a polymer or the like and is used alone or in combination of two or more kinds.

【0012】前記一般式(1)で表わされる化合物を溶
解あるいは分散させて得た塗工液は、ディッピング、ス
プレー、ハケ塗り等により摩擦帯電付与部材の母材に塗
布することができ、乾燥して本発明の正帯電性トナー用
摩擦帯電付与部材が得られる。又、前記一般式(1)で
表わされる化合物を分散させた樹脂を用いて成形しドク
ターブレード等の本発明の正帯電性トナー用摩擦帯電付
与部材が得られる。
The coating liquid obtained by dissolving or dispersing the compound represented by the general formula (1) can be applied to the base material of the triboelectrification imparting member by dipping, spraying, brush coating or the like, and dried. Thus, the triboelectric charging member for positively charging toner of the present invention can be obtained. Further, the frictional charge imparting member for positively charging toner of the present invention such as a doctor blade is obtained by molding using a resin in which the compound represented by the general formula (1) is dispersed.

【0013】キャリアの母材としては、鉄、アルミニウ
ム等の金属、合金又は金属酸化物を含む金属化合物の粒
子、ガラス、セラミック粒子等が用いられ、公知の全て
のキャリアが使用可能である。スリーブやドクターブレ
ードの母材としては金属、合金、プラスチック又はゴム
等の非金属物質が用いられ、従来用いられている全ての
スリーブやドクターブレードが使用可能である。本発明
の帯電付与部材と組み合わせて使用される正帯電性トナ
ーは従来の電子写真用トナーとして用いられているもの
が使用できる。即ち、バインダー樹脂中にカーボンブラ
ックや染、顔料の着色剤を含有させた微粉末であり、磁
性粉は含有していてもいなくても良く、更に性能を改善
するための添加剤や外添処理剤等を使用していても良
い。又、正帯電性の電荷制御剤を少量含有していても良
い。
As the base material of the carrier, particles of metals such as iron and aluminum, particles of metal compounds containing alloys or metal oxides, glass, ceramic particles and the like are used, and all known carriers can be used. As the base material of the sleeve and the doctor blade, a non-metal substance such as metal, alloy, plastic or rubber is used, and all conventionally used sleeves and doctor blades can be used. As the positively chargeable toner used in combination with the charge imparting member of the present invention, those used as conventional electrophotographic toners can be used. That is, it is a fine powder containing carbon black, a dye, and a coloring agent for a pigment in a binder resin, and may or may not contain a magnetic powder, and an additive or an external additive treatment for further improving the performance. You may use the agent. It may also contain a small amount of a positively chargeable charge control agent.

【0014】本発明に係る前記一般式(1)で表わされ
る化合物としては、例えば以下に示すようなものが挙げ
られる。
Examples of the compound represented by the general formula (1) according to the present invention include the following compounds.

【0015】化合物No(1)Compound No. (1)

【化13】 [Chemical 13]

【0016】化合物No(2)Compound No (2)

【化14】 [Chemical 14]

【0017】化合物No(3)Compound No (3)

【化15】 [Chemical 15]

【0018】化合物No(4)Compound No. (4)

【化16】 [Chemical 16]

【0019】化合物No(5)Compound No (5)

【化17】 [Chemical 17]

【0020】化合物No(6)Compound No. (6)

【化18】 [Chemical 18]

【0021】化合物No(7)Compound No. (7)

【化19】 [Chemical 19]

【0022】化合物No(8)Compound No. (8)

【化20】 [Chemical 20]

【0023】化合物No(9)Compound No. (9)

【化21】 [Chemical 21]

【0024】化合物No(10)Compound No. (10)

【化22】 [Chemical formula 22]

【0025】化合物No(11)Compound No. (11)

【化23】 [Chemical formula 23]

【0026】化合物No(12)Compound No. (12)

【化24】 [Chemical formula 24]

【0027】化合物No(13)Compound No (13)

【化25】 [Chemical 25]

【0028】化合物No(14)Compound No (14)

【化26】 [Chemical formula 26]

【0029】化合物No(15)Compound No. (15)

【化27】 [Chemical 27]

【0030】化合物No(16)Compound No. (16)

【化28】 [Chemical 28]

【0031】化合物No(17)Compound No (17)

【化29】 [Chemical 29]

【0032】化合物No(18)Compound No (18)

【化30】 [Chemical 30]

【0033】化合物No(19)Compound No (19)

【化31】 [Chemical 31]

【0034】化合物No(20)Compound No (20)

【化32】 [Chemical 32]

【0035】化合物No(21)Compound No (21)

【化33】 [Chemical 33]

【0036】化合物No(22)Compound No (22)

【化34】 [Chemical 34]

【0037】化合物No(23)Compound No (23)

【化35】 [Chemical 35]

【0038】化合物No(24)Compound No (24)

【化36】 [Chemical 36]

【0039】化合物No(25)Compound No (25)

【化37】 [Chemical 37]

【0040】化合物No(26)Compound No. (26)

【化38】 [Chemical 38]

【0041】化合物No(27)Compound No (27)

【化39】 [Chemical Formula 39]

【0042】化合物No(28)Compound No (28)

【化40】 [Chemical 40]

【0043】化合物No(29)Compound No (29)

【化41】 [Chemical 41]

【0044】化合物No(30)Compound No (30)

【化42】 [Chemical 42]

【0045】化合物No(31)Compound No (31)

【化43】 [Chemical 43]

【0046】化合物No(32)Compound No (32)

【化44】 [Chemical 44]

【0047】化合物No(33)Compound No (33)

【化45】 [Chemical 45]

【0048】化合物No(34)Compound No. (34)

【化46】 [Chemical 46]

【0049】化合物No(35)Compound No (35)

【化47】 [Chemical 47]

【0050】化合物No(36)Compound No (36)

【化48】 [Chemical 48]

【0051】化合物No(37)Compound No. (37)

【化49】 [Chemical 49]

【0052】化合物No(38)Compound No (38)

【化50】 [Chemical 50]

【0053】[0053]

【実施例】以下、実施例により本発明を具体的に説明す
る。実施例中の部は重量部を表わす。
EXAMPLES The present invention will be specifically described below with reference to examples. Parts in the examples represent parts by weight.

【0054】実施例1 4−メトキシ桂皮酸(化合物No(4))25部とシリ
コーン樹脂50部をトルエン−アセトン(1:1容量
比)1リットルに溶解し、これを球形フェライトキャリ
ア(平均粒径100μm)3キロ部に、流動床型コーテ
ィング装置でコートした。一方、スチレン−2−エチル
ヘキシルメタクリレート90部にポリプロピレン5部、
カーボンブラック5部を加え、加熱混合装置により混練
し、冷却後、粗粉砕、微粉砕、分級して10〜12μm
の黒色トナーを得た。前記キャリア97部にこのトナー
3部を加えボールミルで混合して現像剤を得た。トナー
の帯電量をブローオフ粉体帯電量測定装置で測定したと
ころ15μc/gであった。次にこの現像剤を改造市販
複写機にセットし画像を出したところ初期及び一万枚コ
ピー後でも鮮明な画質の像を得る事ができた。
Example 1 25 parts of 4-methoxycinnamic acid (compound No (4)) and 50 parts of a silicone resin were dissolved in 1 liter of toluene-acetone (1: 1 volume ratio), and this was dissolved in a spherical ferrite carrier (average particle size). 3 kg part (diameter 100 μm) was coated with a fluidized bed type coating device. On the other hand, 90 parts of styrene-2-ethylhexyl methacrylate and 5 parts of polypropylene,
Add 10 parts of carbon black, knead with a heating mixer, cool, coarsely pulverize, finely pulverize, and classify to 10 to 12 μm.
To obtain a black toner. 3 parts of this toner was added to 97 parts of the carrier and mixed by a ball mill to obtain a developer. When the charge amount of the toner was measured with a blow-off powder charge amount measuring device, it was 15 μc / g. Next, when this developer was set in a modified commercial copying machine and an image was produced, a clear image could be obtained at the initial stage and after copying 10,000 sheets.

【0055】実施例2 4−tert−ブチル桂皮酸(化合物No(2))25
部とスチレン−n−ブチルメタクリレート50部をトル
エン−アセトン(1:1容量比)1リットルに溶解し、
これを球形フェライトキャリア(平均粒径100μm)
3キロ部に、流動床型コーティング装置でコートした。
このキャリア97部に、実施例1で使用したトナー3部
を加えボールミルで混合して現像剤を得た。トナーの帯
電量をブローオフ粉体帯電量測定装置で測定したところ
28μc/gであった。次にこの現像剤を改造市販複写
機にセットし画像を出したところ初期及び一万枚コピー
後でも鮮明な画質の像を得る事ができた。
Example 2 4-tert-Butylcinnamic acid (Compound No (2)) 25
Parts and 50 parts of styrene-n-butyl methacrylate were dissolved in 1 liter of toluene-acetone (1: 1 volume ratio),
This is a spherical ferrite carrier (average particle size 100 μm)
3 kg part was coated with a fluidized bed type coating device.
To 97 parts of this carrier, 3 parts of the toner used in Example 1 was added and mixed by a ball mill to obtain a developer. When the charge amount of the toner was measured by a blow-off powder charge amount measuring device, it was 28 μc / g. Next, when this developer was set in a modified commercial copying machine and an image was produced, a clear image could be obtained at the initial stage and after copying 10,000 sheets.

【0056】実施例3 実施例1のカーボンブラックの代りに、銅フタロシアニ
ン系油溶性染料であるスピロンブルー2BNH(保土谷
化学工業(株)製品)を用いた他は実施例1と同様に行
なって現像剤を得た。トナーの帯電量をブローオフ粉体
帯電量測定装置で測定したところ18μc/gであっ
た。次にこの現像剤を改造市販複写機にセットし画像を
出したところ初期及び一万枚コピー後でも鮮明な画質の
像を得る事ができた。
Example 3 The same procedure as in Example 1 was carried out except that the carbon black of Example 1 was replaced by Spirone Blue 2BNH (product of Hodogaya Chemical Co., Ltd.) which is a copper phthalocyanine oil-soluble dye. A developer is obtained. When the charge amount of the toner was measured with a blow-off powder charge amount measuring device, it was 18 μc / g. Next, when this developer was set in a modified commercial copying machine and an image was produced, a clear image could be obtained at the initial stage and after copying 10,000 sheets.

【0057】実施例4 2−フルオロ桂皮酸(化合物No(13))25部とシ
リコーン樹脂50部をトルエン−アセトン(1:1容量
比)1リットルに溶解し、これを球形フェライトキャリ
ア(平均粒径100μm)3キロ部に、流動床型コーテ
ィング装置でコートした。一方、低酸価型ポリエステル
樹脂89部にポリプロピレン5部、CIピグメントレッ
ド57を6部加え、加熱混合装置により混練し、冷却
後、粗粉砕、微粉砕、分級して10〜12μmの赤色ト
ナーを得た。前記キャリア97部にこのトナー3部を加
えボールミルで混合して現像剤を得た。トナーの帯電量
をブローオフ粉体帯電量測定装置で測定したところ19
μc/gであった。次にこの現像剤を改造市販複写機に
セットし画像を出したところ初期及び一万枚コピー後で
も鮮明な画質の像を得る事ができた。
Example 4 25 parts of 2-fluorocinnamic acid (Compound No (13)) and 50 parts of a silicone resin were dissolved in 1 liter of toluene-acetone (1: 1 volume ratio), and this was dissolved in a spherical ferrite carrier (average particle size). 3 kg part (diameter 100 μm) was coated with a fluidized bed type coating device. On the other hand, 5 parts of polypropylene and 6 parts of CI Pigment Red 57 were added to 89 parts of low acid value type polyester resin, kneaded by a heating mixer, cooled, coarsely pulverized, finely pulverized and classified to obtain a red toner of 10 to 12 μm. Obtained. 3 parts of this toner was added to 97 parts of the carrier and mixed by a ball mill to obtain a developer. The toner charge amount was measured with a blow-off powder charge amount measuring device to find 19
It was μc / g. Next, when this developer was set in a modified commercial copying machine and an image was produced, a clear image could be obtained at the initial stage and after copying 10,000 sheets.

【0058】実施例5〜10 実施例1の4−メトキシ桂皮酸(化合物No(4))の
代りに表1に示した化合物を用いた他は、実施例1と同
様に行なって表1に示す結果を得た。
Examples 5 to 10 The same procedure as in Example 1 was repeated except that the compound shown in Table 1 was used instead of 4-methoxycinnamic acid (Compound No (4)) in Example 1, and the results are shown in Table 1. The results shown were obtained.

【表1】 [Table 1]

【0059】実施例11 4−tert−ブチル桂皮酸(化合物No(2))25
部とスチレン−メチルメタクリレート樹脂75部をトル
エン−アセトン(1:1容量比)1リットルに溶解し
た。これを図1に示されているトナー搬送部材1にスプ
レーでコーティングをして現像部にセットした。一方、
スチレン−2−エチルヘキシルメタクリレート90部に
ポリプロピレン5部、カーボンブラック5部を加え、加
熱混合装置により混練し、冷却後、粗粉砕、微粉砕、分
級して10〜12μmの黒色トナーを得た。このトナー
100部に対して、疎水性コロイダルシリカ0.2部を
ヘンシェルミキサーで攪拌混合してトナーとした。この
トナーを図1の現像部に入れ画像を出したところ初期及
び一万枚コピー後でも鮮明な画質の像を得る事ができ
た。又トナーの帯電量を測定したところ25μc/gで
あった。
Example 11 4-tert-Butylcinnamic acid (Compound No (2)) 25
Parts and 75 parts of styrene-methylmethacrylate resin were dissolved in 1 liter of toluene-acetone (1: 1 volume ratio). This was coated on the toner conveying member 1 shown in FIG. 1 by spraying and set in the developing section. on the other hand,
To 90 parts of styrene-2-ethylhexyl methacrylate, 5 parts of polypropylene and 5 parts of carbon black were added, kneaded by a heating mixer, cooled, coarsely pulverized, finely pulverized, and classified to obtain a black toner of 10 to 12 μm. To 100 parts of this toner, 0.2 part of hydrophobic colloidal silica was agitated and mixed with a Henschel mixer to obtain a toner. When this toner was put in the developing section of FIG. 1 and an image was produced, a clear image could be obtained at the initial stage and after copying 10,000 sheets. The charge amount of the toner was measured and found to be 25 μc / g.

【0060】実施例12 β,β−ビス(4−ジエチルアミノフェニル)アクリル
酸(化合物No(33))25部とシリコーン樹脂50
部をトルエン−アセトン(1:1容量比)1リットルに
溶解した。これを図1に示されているトナー搬送部材1
にスプレーでコーティングして現像部にセットした。実
施例11と同様にして調製したトナーを図1の現像部に
入れ画像を出したところ初期及び一万枚コピー後でも鮮
明な画質の像を得る事ができた。又、トナーの帯電量を
測定したところ20μc/gであった。
Example 12 25 parts of β, β-bis (4-diethylaminophenyl) acrylic acid (Compound No (33)) and silicone resin 50
Parts were dissolved in 1 liter of toluene-acetone (1: 1 volume ratio). This is the toner conveying member 1 shown in FIG.
Was spray-coated on and set in the developing section. When the toner prepared in the same manner as in Example 11 was placed in the developing section of FIG. 1 and an image was formed, a clear image having an image quality could be obtained even at the initial stage and after copying 10,000 sheets. The amount of charge on the toner was measured and found to be 20 μc / g.

【0061】実施例13 4−メトキシ桂皮酸(化合物No(4))25部とスチ
レン−メチルメタクリレート樹脂75部をトルエン−ア
セトン(1:1容量比)1リットルに溶解した。これを
図1に示されている弾性ブレード2(ステンレス製)に
スプレーでコーティングをして現像部にセットした。一
方、低酸価型ポリエステル樹脂90部にポリプロピレン
5部、銅フタロシアニン系油溶性染料であるスピロンブ
ルー2BNH5部を加え、加熱混合装置により混練し、
冷却後、粗粉砕、微粉砕、分級して10〜12μmの青
色トナーを得た。このトナー100部に対して、疎水性
コロイダルシリカ0.2部をヘンシェルミキサーで攪拌
混合してトナーとした。このトナーを図1の現像部に入
れ画像を出したところ初期及び一万枚コピー後でも鮮明
な画質の像を得る事が出来た。又トナーの帯電量を測定
したところ15μc/gであった。
Example 13 25 parts of 4-methoxycinnamic acid (Compound No (4)) and 75 parts of styrene-methyl methacrylate resin were dissolved in 1 liter of toluene-acetone (1: 1 volume ratio). This was coated on the elastic blade 2 (made of stainless steel) shown in FIG. 1 by spraying and set in the developing section. On the other hand, 5 parts of polypropylene and 5 parts of Spiron Blue 2BNH, which is a copper phthalocyanine oil-soluble dye, were added to 90 parts of a low acid value type polyester resin, and kneaded by a heating mixer.
After cooling, coarse pulverization, fine pulverization and classification were carried out to obtain a blue toner of 10 to 12 μm. To 100 parts of this toner, 0.2 part of hydrophobic colloidal silica was agitated and mixed with a Henschel mixer to obtain a toner. When this toner was put in the developing section of FIG. 1 and an image was produced, a clear image could be obtained at the initial stage and after copying 10,000 sheets. The charge amount of the toner was measured and found to be 15 μc / g.

【0062】実施例14 2,6−ジフルオロ桂皮酸(化合物No(18))25
部とシリコーン樹脂50部をトルエン−アセトン(1:
1容量比)1リットルに溶解した。これを図1に示され
ている弾性ブレード2(ステンレス製)にスプレーでコ
ーティングをして現像部にセットした。実施例13と同
様にして調製したトナーを図1の現像部に入れ画像を出
したところ初期及び一万枚コピー後でも鮮明な画質の像
を得る事ができた。又、トナーの帯電量を測定したとこ
ろ20μc/gであった。
Example 14 2,6-Difluorocinnamic acid (Compound No (18)) 25
Parts and 50 parts of silicone resin with toluene-acetone (1:
(1 volume ratio) dissolved in 1 liter. This was coated on the elastic blade 2 (made of stainless steel) shown in FIG. 1 by spraying and set in the developing section. When the toner prepared in the same manner as in Example 13 was put in the developing section in FIG. 1 and an image was produced, a clear image was obtained at the initial stage and after copying 10,000 sheets. The amount of charge on the toner was measured and found to be 20 μc / g.

【0063】実施例15 α−フェニル−β−(4−プロポキシフェニル)アクリ
ル酸(化合物No(36))30部とシリコーン樹脂7
0部を加熱混合装置により混練し、樹脂ブレードに成形
した。この樹脂ブレードを図1に示されている弾性ブレ
ードに取り付けた。実施例13と同様にして調製したト
ナーを図1の現像部に入れ画像を出したところ初期及び
一万枚コピー後でも鮮明な画質の像を得る事ができた。
又トナーの帯電量を測定したところ18μc/gであっ
た。
Example 15 30 parts of α-phenyl-β- (4-propoxyphenyl) acrylic acid (Compound No (36)) and silicone resin 7
0 part was kneaded with a heating mixer to form a resin blade. This resin blade was attached to the elastic blade shown in FIG. When the toner prepared in the same manner as in Example 13 was put in the developing section in FIG. 1 and an image was produced, a clear image was obtained at the initial stage and after copying 10,000 sheets.
The charge amount of the toner was measured and found to be 18 μc / g.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の摩擦帯電付与部材を用いた現像装置の
一例を示す模式断面図である。
FIG. 1 is a schematic cross-sectional view showing an example of a developing device using a triboelectric charging member of the present invention.

【符号の説明】[Explanation of symbols]

1 トナー搬送部材 2 弾性ブレード 3 トナー供給ローラー 4 トナーアジテーター 5 トナータンク 1 Toner Transport Member 2 Elastic Blade 3 Toner Supply Roller 4 Toner Agitator 5 Toner Tank

───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡辺 香代子 茨城県つくば市御幸ケ丘45番地 保土谷化 学工業株式会社筑波研究所内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kayoko Watanabe 45 Miyukigaoka, Tsukuba City, Ibaraki Prefecture Hodogaya Chemical Industry Co., Ltd. Tsukuba Research Institute

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 【化1】 〔式中、X及びYは、各々独立に、水素原子、 【化2】 (式中、Dは電子供与性基を表わし、R1 及びR2 は各
々独立に、水素原子、ハロゲン原子、アルキル基、シク
ロアルキル基、アラルキル基、アリール基、アシル基、
シアノ基またはニトロ基を表わす。)、 【化3】 (式中、D及びR1 ,R2 は前記と同じ意味を表わ
す。)、 【化4】 (式中、D及びR1 ,R2 は前記と同じ意味を表わ
す。)、 【化5】 (式中、A1 及びA2 は各々独立に水素または電子吸引
性基を表わし、但し、同時に水素ではなく、R3 は水素
原子、アルキル基、シクロアルキル基、アラルキル基、
アリール基、アルコキシ基、ジアルキルアミノ基、ジア
リールアミノ基、ジアラルキルアミノ基またはヒドロキ
シル基を表わす。)または 【化6】 (式中、A1 及びR3 は前記と同じ意味を表わし、nは
0,1または2を表わし、nが2のとき、R3 はお互に
異っていても良い。)を表わし、但しXとYとは同時に
水素ではなく、Zは水素原子またはアリール基を表わ
す。〕で表わされる化合物を少なくとも表面に含有する
事を特徴とする正帯電性トナー用摩擦帯電付与部材。
Claims: [In the formula, X and Y are each independently a hydrogen atom; (In the formula, D represents an electron-donating group, R 1 and R 2 are each independently a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, an acyl group,
Represents a cyano group or a nitro group. ), [Chemical Formula 3] (In the formulae, D and R 1 and R 2 have the same meanings as described above.) (In the formulae, D and R 1 and R 2 have the same meanings as described above.) (In the formula, A 1 and A 2 each independently represent hydrogen or an electron-withdrawing group, provided that R 3 is not hydrogen at the same time, and R 3 is a hydrogen atom, an alkyl group, a cycloalkyl group, an aralkyl group,
It represents an aryl group, an alkoxy group, a dialkylamino group, a diarylamino group, a diaralkylamino group or a hydroxyl group. ) Or (In the formula, A 1 and R 3 have the same meaning as described above, n represents 0, 1 or 2, and when n is 2, R 3 may be different from each other.), Provided that X and Y are not hydrogen at the same time, and Z represents a hydrogen atom or an aryl group. ] A triboelectrification imparting member for a positively chargeable toner, characterized in that it contains at least the compound represented by the above formula.
JP4109171A 1992-04-03 1992-04-03 Triboelectrication member for positive charger toner Pending JPH05281852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4109171A JPH05281852A (en) 1992-04-03 1992-04-03 Triboelectrication member for positive charger toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4109171A JPH05281852A (en) 1992-04-03 1992-04-03 Triboelectrication member for positive charger toner

Publications (1)

Publication Number Publication Date
JPH05281852A true JPH05281852A (en) 1993-10-29

Family

ID=14503463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4109171A Pending JPH05281852A (en) 1992-04-03 1992-04-03 Triboelectrication member for positive charger toner

Country Status (1)

Country Link
JP (1) JPH05281852A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7666566B2 (en) 2004-01-06 2010-02-23 Ricoh Company, Ltd. Electrophotographic toner and method of preparing the toner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7666566B2 (en) 2004-01-06 2010-02-23 Ricoh Company, Ltd. Electrophotographic toner and method of preparing the toner

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