JPS5941184B2 - Color toner for electrophotography - Google Patents
Color toner for electrophotographyInfo
- Publication number
- JPS5941184B2 JPS5941184B2 JP57052303A JP5230382A JPS5941184B2 JP S5941184 B2 JPS5941184 B2 JP S5941184B2 JP 57052303 A JP57052303 A JP 57052303A JP 5230382 A JP5230382 A JP 5230382A JP S5941184 B2 JPS5941184 B2 JP S5941184B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- electrophotography
- present
- color toner
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08768—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/097—Plasticisers; Charge controlling agents
- G03G9/09733—Organic compounds
- G03G9/09758—Organic compounds comprising a heterocyclic ring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Developing Agents For Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明はカラー電子写真用トナーに関し、詳しくは電子
写真、殊にカラー電子写真において負の静電潜像を現像
するための正極性カラー電子写真用トナーに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color electrophotographic toner, and more particularly to a positive polarity color electrophotographic toner for developing a negative electrostatic latent image in electrophotography, particularly in color electrophotography.
電子写真にあつて酸化亜鉛感光体などに形成される負の
静電潜像を現像するには、正極性トナーが使用される。In electrophotography, a positive polarity toner is used to develop a negative electrostatic latent image formed on a zinc oxide photoreceptor or the like.
このトナーは一般に熱可塑性樹脂、電荷制御剤および着
色剤を溶融混練し微粉砕したもので、電荷制御剤は通常
は塩基性ニグロシン染料が使用されている。ところで、
正極性のカラー電子写真用トナーを製造する場合、電荷
制御剤の選択が大きな課題となる。This toner is generally made by melt-kneading and finely pulverizing a thermoplastic resin, a charge control agent, and a colorant, and the charge control agent usually uses a basic nigrosine dye. by the way,
When producing a positive polarity color electrophotographic toner, selection of a charge control agent is a major issue.
ニグロシン染料はそれ自体が黒色状であるので、シアン
、マゼンタ、イエロ−等の鮮明な色調を要求されるカラ
ートナー用には適用できないことは勿論のこと、アスフ
ァルト物質等従来知られている他の着色材料も適用不可
能である。無色又は淡色の電荷匍卿剤としては、４級ア
ンモニウム塩、Ｃａ、、Ｂａ、などのチタネートあるい
はカーボネート、アルコキシル化アミン、ナイロン等各
種ポリアミド系樹脂があるが、いずれも画像特性、とく
に連続コピー時の劣化、すなわちカブリ、画像濃度の低
下が甚しく実用上問題を有する。本発明は、多くの電荷
制御剤、殊にアミン系化合物の中で特定の構造を有する
ポリアミンがカラートナー用に良好な特性をもたらすこ
とを見出したものである。Since nigrosine dye itself is black, it goes without saying that it cannot be applied to color toners that require clear color tones such as cyan, magenta, and yellow. Colored materials are also not applicable. Colorless or light-colored charge carrying agents include quaternary ammonium salts, titanates and carbonates such as Ca, Ba, etc., alkoxylated amines, and various polyamide resins such as nylon, but all of them improve image properties, especially during continuous copying. Deterioration of the image quality, that is, fogging and a decrease in image density, poses serious practical problems. The present invention is based on the discovery that among many charge control agents, especially polyamines having a specific structure among amine-based compounds, they provide good properties for color toners.
すなわち本発明は、熱可塑性樹脂および下記構ヨ 造単
位を有するポリアミンからなる電荷制御剤を含有したこ
とを特徴とするカラー電子写真用トナーを提供するもの
である。That is, the present invention provides a color electrophotographic toner characterized by containing a charge control agent made of a thermoplastic resin and a polyamine having the following structural unit.
−ーｉ−０（−〇一（一 ク 以下に本発明をさらに詳細に説明する。−−i−0(−〇１(１) H The present invention will be explained in more detail below.
本発明で使用される熱可塑性樹脂としてはスチレン樹脂
、ポリアクリル酸エステル、ポリアクリル酸、ポリ塩化
ビニル、ポリ酢酸ビニノレ、ポリ塩化ビニリデン、フェ
ノール樹脂、エポキシ樹脂、不飽和ポリ５ エステル樹
脂などがあげられ、これらを単独もしくは、必要により
２種以上併用して本発明に供する。Examples of thermoplastic resins used in the present invention include styrene resin, polyacrylic ester, polyacrylic acid, polyvinyl chloride, polyvinylacetate, polyvinylidene chloride, phenolic resin, epoxy resin, and unsaturated poly5 ester resin. These may be used alone or in combination of two or more as necessary for the present invention.
一方、本発明でいう特定構造単位を有するポリアミンは
公知の物質であつて、例えばオリエント化学社製ホント
ロンＡＦＰ−Ｂとして市販されているから容易に取得で
きるものである。On the other hand, the polyamine having a specific structural unit as used in the present invention is a known substance and can be easily obtained, for example, as it is commercially available as Hontron AFP-B manufactured by Orient Chemical Co., Ltd.
本発明のトナーを作るには、従来の製造法と同様に、樹
脂、ポリアミンからなる電荷匍卿剤および各種の着色剤
を溶融混練し、微粉砕すればよい。The toner of the present invention can be produced by melt-kneading a resin, a charge carrying agent made of polyamine, and various coloring agents, and pulverizing the mixture in the same manner as in conventional manufacturing methods.
樹脂とポリアミン電荷制御剤との配合比は限定されるも
のではないが、樹脂１００重量部に対しポリアミン１〜
１０重量部が適当である。このようにして得られた本発
明のトナーは、シアン、マゼンタ、イエロ一の三原色の
他に、白色、グリーン、赤色等全ゆるカラートナーに対
して安定した画像性、耐久性をもたらすことができ、所
期の目的を充分達成するものである。なお、通常の黒色
トナーに対しても本発明がすぐれた画像特性をもたらす
ことも確認されている。次に実施例を示すが、部はすべ
て重量部である。The blending ratio of the resin and the polyamine charge control agent is not limited, but 1 to 100 parts by weight of the polyamine to 100 parts by weight of the resin.
10 parts by weight is suitable. The thus obtained toner of the present invention can provide stable image performance and durability for all color toners such as white, green, and red in addition to the three primary colors of cyan, magenta, and yellow. , which fully achieves the intended purpose. It has also been confirmed that the present invention provides excellent image characteristics even with ordinary black toner. Examples are shown below, in which all parts are by weight.
を熱混練し、冷却した後ジェット粉砕機により粒径１０
〜１５μｍのシアントナーを得た。このトナー５部を鉄
粉キヤリヤ一１００部と混合撹拌して現像剤を作成した
。After being heat-kneaded and cooled, a jet pulverizer is used to reduce the particle size to 10.
A cyan toner of ~15 μm was obtained. A developer was prepared by mixing and stirring 5 parts of this toner with 100 parts of an iron powder carrier.
ブローオフ法によりこの現像剤の帯電量を測定したとこ
ろ、１７μｃ／１であつた。さらに、この現像剤を用い
て酸化亜鉛感光体上の静電潜像を現像したところ、地汚
れのない鮮明なポジ画像が得られた。When the charge amount of this developer was measured by the blow-off method, it was found to be 17 μc/1. Further, when an electrostatic latent image on a zinc oxide photoreceptor was developed using this developer, a clear positive image without background smudge was obtained.
また、ランーング時、トナーの現像特性変化は認められ
なかつた。Further, no change in the development characteristics of the toner was observed during running.
実施例 ２
有機顔料をＳｅｉｋａｆａｓｔＲｅｄＬＲ−１２１５（
大日精化製）に代えた他は、実施例１と同様にしてマゼ
ンタトナー粒子を得、現像剤を調製し静電潜像を現像し
た。Example 2 Seikafast Red LR-1215 (
Magenta toner particles were obtained in the same manner as in Example 1, except that the toner particles (manufactured by Dainichiseika Chemical Co., Ltd.) were used, a developer was prepared, and an electrostatic latent image was developed.
その結果、実施例１と同じ効果が認められた。比較例
を熱混練し、冷却した後ジニット粉砕機により粒径１０
〜１５μｍのシアントナーを得た。As a result, the same effects as in Example 1 were observed. The comparative example was heat-kneaded, cooled, and then milled with a dinit grinder to a particle size of 10.
A cyan toner of ~15 μm was obtained.
このトナー５部を鉄粉キヤリヤ一１００部と混合攪拌し
て現像剤を作成した。A developer was prepared by mixing and stirring 5 parts of this toner with 100 parts of an iron powder carrier.
この現像剤の帯電量をブローオフ法にて測定したところ
１４μｅ／Ｖであつた。さらにこの現像剤を用いて酸化
亜鉛感光体上の静電潜像を現像したところ、鮮明な初期
画像が得られたが、連続コピーの際、すなわちコピー枚
数５０〜１００枚で地汚れが発生し実用上支障をきたす
ものであつた。The charge amount of this developer was measured by a blow-off method and was found to be 14 μe/V. Furthermore, when an electrostatic latent image on a zinc oxide photoreceptor was developed using this developer, a clear initial image was obtained, but background smearing occurred during continuous copying, that is, after 50 to 100 copies were made. This was a practical problem.
Claims (1)
ンからなる電荷制御剤を含有したことを特徴とするカラ
ー電子写真用トナー。 ▲数式、化学式、表等があります▼[Scope of Claims] 1. A color electrophotographic toner characterized by containing a charge control agent consisting of a thermoplastic resin and a polyamine having the following structural unit. ▲Contains mathematical formulas, chemical formulas, tables, etc.▼
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57052303A JPS5941184B2 (en) | 1982-04-01 | 1982-04-01 | Color toner for electrophotography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57052303A JPS5941184B2 (en) | 1982-04-01 | 1982-04-01 | Color toner for electrophotography |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58171060A JPS58171060A (en) | 1983-10-07 |
| JPS5941184B2 true JPS5941184B2 (en) | 1984-10-05 |
Family
ID=12911018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57052303A Expired JPS5941184B2 (en) | 1982-04-01 | 1982-04-01 | Color toner for electrophotography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941184B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673026B2 (en) * | 1985-09-30 | 1994-09-14 | 三田工業株式会社 | Color Toner |
| DE4317059A1 (en) * | 1993-05-21 | 1994-11-24 | Basf Ag | Electrostatic toners containing polyamines as charge stabilisers |
| US5382491A (en) * | 1993-12-21 | 1995-01-17 | International Business Machines Corporation | Toner composition |
| US6514619B2 (en) | 2000-08-30 | 2003-02-04 | Dainippon Ink And Chemicals, Inc. | Aqueous resin composition and coated metal material having cured coating of the same |
| EP1205812B1 (en) * | 2000-10-30 | 2006-05-17 | Dainippon Ink And Chemicals, Inc. | Charge-controlling agent and toner using the same |
| JP2002229260A (en) * | 2001-01-30 | 2002-08-14 | Dainippon Ink & Chem Inc | Electrostatic charge image developing toner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519456A (en) * | 1974-07-12 | 1976-01-26 | Konishiroku Photo Ind |
-
1982
- 1982-04-01 JP JP57052303A patent/JPS5941184B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519456A (en) * | 1974-07-12 | 1976-01-26 | Konishiroku Photo Ind |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58171060A (en) | 1983-10-07 |
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