JPH02163756A - Electrically conductive color toner - Google Patents
Electrically conductive color tonerInfo
- Publication number
- JPH02163756A JPH02163756A JP63319061A JP31906188A JPH02163756A JP H02163756 A JPH02163756 A JP H02163756A JP 63319061 A JP63319061 A JP 63319061A JP 31906188 A JP31906188 A JP 31906188A JP H02163756 A JPH02163756 A JP H02163756A
- Authority
- JP
- Japan
- Prior art keywords
- fine powder
- toner
- conductive
- electrically conductive
- color toner
- 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
- 239000000843 powder Substances 0.000 claims abstract description 25
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910003437 indium oxide Inorganic materials 0.000 claims abstract 4
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims abstract 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000011787 zinc oxide Substances 0.000 claims abstract 4
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 claims abstract 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract 3
- -1 tin oxide compound Chemical class 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims 4
- 239000002245 particle Substances 0.000 claims 1
- 239000003086 colorant Substances 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 4
- 239000006229 carbon black Substances 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 229920005792 styrene-acrylic resin Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 2
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 description 2
- 239000001052 yellow pigment Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
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
- G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components
-
- 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
- G03G9/09708—Inorganic compounds
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Developing Agents For Electrophotography (AREA)
- Color Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電子写真法、静電印刷法、静電記録法におい
て形成されるなどの静電荷像を乾式現象するための導電
性カラートナーに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a conductive color toner for dry-processing electrostatic images formed in electrophotography, electrostatic printing, electrostatic recording, etc. It is.
従来の技術
電子写真法は、静電印刷法、静電記録法等において形成
される静電荷像は、一般にトナーによって現像され、そ
の後に紙への転写、定着工程を経て画像が可視化される
。現在において現像用トナーとしては着色された微粉体
よりなるものが広く用いられている。しかるに、その現
像用トナーは絶縁性トナーと導電性トナーに大別される
。前者の絶縁性トナーは摩擦帯電によって電荷を得て、
トナー担持体と静電荷像担持体間の電位差でトナーに対
して静電引力が働き静電荷像の現像が行われる。しかし
、摩擦帯電によって電荷を与える方法は周囲環境による
依存性が強く、高温下ではトナーの持つ帯電量が低くな
り、低湿下では逆に帯電量は上昇する。このことから、
現像挙動が環境によって変動するという欠点を有してき
た。また、トナー担持体と静電荷像担持体間の電位差で
現像が行うためその両者の距離によって現像電界が乱れ
静電荷像の周囲にもトナー付着を起こしトナー像が乱れ
る等の問題を有してきた。BACKGROUND OF THE INVENTION In conventional electrophotographic methods, an electrostatic image formed in an electrostatic printing method, an electrostatic recording method, or the like is generally developed with toner, and then transferred to paper and subjected to a fixing process to make the image visible. At present, toners made of colored fine powder are widely used as developing toners. However, the developing toner is broadly classified into insulating toner and conductive toner. The former insulating toner acquires an electric charge through triboelectric charging,
An electrostatic attraction force acts on the toner due to the potential difference between the toner carrier and the electrostatic image carrier, and the electrostatic image is developed. However, the method of applying a charge by triboelectric charging is highly dependent on the surrounding environment, and the amount of charge the toner has decreases under high temperatures, and increases when the humidity is low. From this,
It has had the disadvantage that development behavior varies depending on the environment. In addition, since development is performed by the potential difference between the toner carrier and the electrostatic image carrier, the distance between the two disturbs the developing electric field, which causes toner to adhere to the periphery of the electrostatic image, resulting in a disordered toner image. .
これに対して後者の導電性トナーは静電荷像の静電誘導
に基づいて現像が進行するためトナーを摩擦帯電せしめ
る必要がない。そして誘導電荷は湿度によってその値は
変動しないため周囲環境によって現像挙動が変化するこ
とはない。またトナーのＳｔ誘導での現像のため静電荷
像に対して忠実にトナー像が再現され、解像度が高く鮮
明な画像が得られる。On the other hand, with the latter type of conductive toner, development proceeds based on electrostatic induction of an electrostatic charge image, so there is no need to triboelectrically charge the toner. Since the value of the induced charge does not change depending on humidity, the development behavior does not change depending on the surrounding environment. Further, since the toner is developed by St induction, the toner image is faithfully reproduced with respect to the electrostatic charge image, and a clear image with high resolution can be obtained.
発明が解決しようとする課題
しかしながら上記のように導電性トナーを用いるときは
トナーの抵抗を下げる必要がありその導電化材としてカ
ーボンブラックをトナー中に含有するという方法を用い
てきた。従ってを彩色の着色剤をトナーに含有してもカ
ーボンブラックは黒色であり導電化に必要な量を添加す
ることにより有彩色の発色性が悪くなるという課題を有
してきた。また抵抗を下げるためには多量の導電粉を必
要としてきた。Problems to be Solved by the Invention However, when using a conductive toner as described above, it is necessary to lower the resistance of the toner, and a method has been used in which carbon black is contained in the toner as a conductive material. Therefore, even if a toner contains a coloring agent, carbon black is black, and there has been a problem in that the color development of chromatic colors deteriorates when added in an amount necessary for conductivity. Additionally, a large amount of conductive powder has been required to lower the resistance.
本発明は上記課題に鑑み、良好な有彩色を呈ししかも少
量の導電粉で導電性を有し優れた現像を行うことができ
る導電性カラートナーを提供するものである。In view of the above-mentioned problems, the present invention provides a conductive color toner that exhibits good chromatic color, has conductivity with a small amount of conductive powder, and can perform excellent development.
課題を解決するための手段
上記課題を解決するために本発明の導電性カラートナー
は、トナーの表面に機械的歪力によって導電性の＠粉を
付着させるという構成を備えたものである。Means for Solving the Problems In order to solve the above problems, the conductive color toner of the present invention has a structure in which conductive @ powder is attached to the surface of the toner by mechanical strain force.
作用
本発明は上記したように、表面に少量の導電性微粉を付
着させることによってトナー抵抗を１０”ΩＣＵｔ以下
にすることができる。そして静電誘導によ゛り現像が可
能となる。そのことによってきわめて解像度の高い鮮明
な画像が得られまた有彩色の着色剤を含有しても十分発
色性の良い有彩色が得られる。Function: As described above, the present invention can reduce the toner resistance to 10" ΩCUt or less by attaching a small amount of conductive fine powder to the surface. Development is then possible by electrostatic induction. By this method, a clear image with extremely high resolution can be obtained, and even if a chromatic colorant is contained, a chromatic color with sufficient color development can be obtained.
実施例
以下本発明の一実施例の導電性カラートナーについて説
明する。EXAMPLE A conductive color toner according to an example of the present invention will be described below.
（実施例）
まず始めに下記に示すような配合でそれぞれマゼンタ、
シアン、イエローの顔料を用いてカラートナー用のトナ
ー芯材１．ｎ、ｍを作成した。(Example) First of all, magenta, magenta, and
Toner core material for color toner using cyan and yellow pigments 1. n and m were created.
芯材Ｉ（マゼンタ用）
スチレンアクリル樹脂（積水化学製） ４６０ｇポ
リプロピレンワックス
ビスコール５５０Ｐ（三洋化成製）２５ｇマゼンタ顔料
リオノールレッド（東洋インキ製）１５ｇ芯材■（シア
ン用）
スチレンアクリル樹脂（積木化学り ４６１ｇポリプ
ロピレンワックス
ビスコール５５０Ｐ （三洋化成製）２５ｇシアン顔料
リオノールブルー（東洋インキ製）１４ｇ芯材■（イエ
ロー用）
スチレンアクリル樹脂（積水化学製） ４５９ｇポリ
プロピレンワックス
ビスコール５５０Ｐ（三洋化成製）２５ｇイエロー顔料
リオノールブルー（東洋インキ製）１６ｇそれぞれの上
記組成からなる混合物をロールミルで１３０°Ｃで溶融
混練し、冷却後にカッターミルで粗粉砕しその後ジェッ
トミルで微粉砕し、風力分級にて４〜２５μの分級品を
得た。その分級品１００ｇに導電性微粉をメカノフリュ
ージョン（線用ミクロン社製）にて機械的歪力で表面に
付着し導電性カラートナーを作成した。そして、自作の
試作機にて複写テストにて複写テストを行った０画像濃
度はマクベス濃度計にて測定を行った。その以下余白
（比較例）
下記に示すような配合でトナーを作成した。Core material I (for magenta) Styrene acrylic resin (manufactured by Sekisui Chemical) 460 g Polypropylene wax Viscole 550P (manufactured by Sanyo Chemical) 25 g Magenta pigment Lionol Red (manufactured by Toyo Ink) 15 g Core material ■ (for cyan) Styrene acrylic resin (building blocks Chemical 461g polypropylene wax viscol 550P (manufactured by Sanyo Kasei) 25g cyan pigment Lionol Blue (manufactured by Toyo Ink) 14g core material ■ (for yellow) Styrene acrylic resin (manufactured by Sekisui Chemical) 459g polypropylene wax viscol 550P (manufactured by Sanyo Kasei) ) 25g yellow pigment Lionol Blue (manufactured by Toyo Ink) 16g A mixture of each of the above compositions was melt-kneaded at 130°C in a roll mill, cooled, coarsely pulverized with a cutter mill, then finely pulverized with a jet mill, and subjected to air classification. A classified product of 4 to 25 μm was obtained. Conductive fine powder was attached to the surface of 100 g of the classified product using MechanoFusion (manufactured by Wire Micron Co., Ltd.) using mechanical strain force to create a conductive color toner. A copying test was carried out using a self-made prototype machine.The density of the 0 image was measured using a Macbeth densitometer.The following margins (comparative example) A toner was prepared with the formulation shown below.
（比較例１）
スチレンアクリル樹脂（積水化学製） ４６０ｇポ
リプロピレンワックス
ビスコール５５０Ｆ （三洋化成製）２５ｇマゼンタ顔
料
リオノールレッド（東洋インキ製）１５ｇ導電粉 酸化
スズ系化合物
エルコムＴＬ−２０（触媒化成工業） ５００ｇそ
れぞれの上記組成からなる混合物をロールミルで１３０
’Ｃ′″ｉ？溶融混練し、冷却後にカンタ−ミルで粗粉
砕しその後ジェットミルで微粉砕し、風力分級にて４〜
２５μの分級品を得た。抵抗値を計ったところ２×１０
ＩｓΩｃｍで有り非常に高い抵抗であった。(Comparative Example 1) Styrene acrylic resin (manufactured by Sekisui Chemical) 460 g Polypropylene wax Viscole 550F (manufactured by Sanyo Chemical Co., Ltd.) 25 g Magenta pigment Lionol Red (manufactured by Toyo Ink) 15 g Conductive powder Tin oxide compound Elcom TL-20 (Catalyst Chemical Industry Co., Ltd.) ) 500g of each mixture consisting of the above composition was milled with a roll mill to 130g.
'C'''i? Melt kneaded, cooled, coarsely pulverized with a canter mill, then finely pulverized with a jet mill, and 4 to 4
A 25 μm fraction was obtained. I measured the resistance value and it was 2x10.
It had a very high resistance of IsΩcm.
（比較例２）
スチレンアクリル樹脂（積水化学製） ４６０ｇポ
リプロピレンワックス
ビスコール５５０Ｐ（三洋化成製）２５ｇマゼンタ顔料
リオノールレッド（東洋インキ製）１５ｇ導電粉 酸化
スズ系化合物
エルコムＴＬ−２０（触媒化成工業） １０００εそ
れぞれの上記組成からなる混合物をロールミルで１３０
°Ｃで溶融混練し、冷却後にカンタ−ミルで粗粉砕しそ
の後ジェットミルで微粉砕し、風力分級にて４〜２５μ
の分級品を得た。抵抗値を計ったところ１×１０１０Ω
１となった。(Comparative Example 2) Styrene acrylic resin (manufactured by Sekisui Chemical) 460 g Polypropylene wax Viscole 550P (manufactured by Sanyo Chemical Co., Ltd.) 25 g Magenta pigment Lionol Red (manufactured by Toyo Ink) 15 g Conductive powder Tin oxide compound Elcom TL-20 (Catalyst Chemical Industry Co., Ltd.) ) A mixture consisting of the above composition for each of 1000ε was milled in a roll mill at 130
Melt and knead at °C, cool, coarsely pulverize with a canter mill, then finely pulverize with a jet mill, and air classify to 4 to 25μ
A classified product was obtained. When I measured the resistance value, it was 1 x 1010Ω.
It became 1.
以上のように比較例と比較して表面に導ＩＩ粉を付着す
ることによってトナーの内部に練り込む場合に比べて少
量の導電粉で導電化が可能となった。As described above, in comparison with the comparative example, by adhering conductive II powder to the surface, conductivity could be achieved with a smaller amount of conductive powder than when kneading it into the inside of the toner.
そしてマゼンタ、シアン、イエローのトナーとも画像濃
度が１．４以上または非画像部へのトナー付着もない画
像が得られた。さらに０）（Ｐシートを通したところ上
記で作成したトナーはすべて色の透過度のよいＯＨＰ画
像が得られた。また解像度も１０００ｄ ｐ ｔと極め
て鮮明な画像が得られた。For magenta, cyan, and yellow toners, images with image densities of 1.4 or higher or with no toner adhesion to non-image areas were obtained. Furthermore, when the toners prepared above were passed through a P sheet, an OHP image with good color transparency was obtained. Also, an extremely clear image with a resolution of 1000 dpt was obtained.
発明の効果
以上のように本発明はトナー表面に導電性微粉を付着す
ることよって少量の導電粉でトナーの導電化が計れる。Effects of the Invention As described above, in the present invention, by attaching conductive fine powder to the surface of the toner, it is possible to make the toner conductive with a small amount of conductive powder.
そしてそのトナーを用いることに画像濃度が十分に高く
、非画像部へのトナー付着がない、解像度が極めて高い
また色の再現性のよい画像を作成することができる。By using this toner, it is possible to create an image with sufficiently high image density, no toner adhesion to non-image areas, extremely high resolution, and good color reproducibility.
Claims (8)
付着させてなり、電気抵抗が１０＾１＾３Ωｃｍ以下で
あることを特徴とする導電性カラートナー。(1) A conductive color toner characterized by having conductive fine powder adhered to the surface of the toner by mechanical strain and having an electrical resistance of 10^1^3 Ωcm or less.
セントである特許請求の範囲第１項に記載の導電性カラ
ートナー。(2) The conductive color toner according to claim 1, wherein the proportion of the conductive fine powder is 0.5 to 30 weight percent of the total.
とを特徴とする特許請求の範囲第２項に記載の導電性カ
ラートナー。(3) The conductive color toner according to claim 2, wherein the conductive fine powder has an average particle size of 0.4 μm or less.
からなる特許請求の範囲第３項に記載の導電性カラート
ナー。(4) The conductive color toner according to claim 3, wherein the conductive fine powder comprises titanium oxide or a titanium oxide-based compound.
なる特許請求の範囲第３項に記載の導電性カラートナー
。(5) The conductive color toner according to claim 3, wherein the conductive fine powder comprises tin oxide or a tin oxide compound.
なる特許請求の範囲第３項に記載の導電性カラートナー
。(6) The conductive color toner according to claim 3, wherein the conductive fine powder comprises zinc oxide or a zinc oxide-based compound.
系化合物からなる特許請求の範囲第３項に記載の導電性
カラートナー。(7) The conductive color toner according to claim 3, wherein the conductive fine powder comprises indium oxide or an indium oxide-based compound.
なる特許請求の範囲第３項に記載の導電性カラートナー
。(8) The conductive color toner according to claim 3, wherein the conductive fine powder comprises copper iodide or a copper iodide-based compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63319061A JPH02163756A (en) | 1988-12-16 | 1988-12-16 | Electrically conductive color toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63319061A JPH02163756A (en) | 1988-12-16 | 1988-12-16 | Electrically conductive color toner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02163756A true JPH02163756A (en) | 1990-06-25 |
Family
ID=18106062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63319061A Pending JPH02163756A (en) | 1988-12-16 | 1988-12-16 | Electrically conductive color toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02163756A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5194356A (en) * | 1990-11-05 | 1993-03-16 | Xerox Corporation | Toner compositions |
| JPH06118693A (en) * | 1992-10-07 | 1994-04-28 | Tomoegawa Paper Co Ltd | Non-magnetic one-component developing method |
| WO1994015264A1 (en) * | 1992-12-23 | 1994-07-07 | The University Of Western Ontario | Plasma treatment of polymer powders |
| JPH09160290A (en) * | 1995-12-08 | 1997-06-20 | Iwatsu Electric Co Ltd | Toner for developing magnetic latent image |
| JP2007121481A (en) * | 2005-10-26 | 2007-05-17 | Seiko Epson Corp | Negative charge type toner and method for manufacturing the same |
| JP2007121483A (en) * | 2005-10-26 | 2007-05-17 | Seiko Epson Corp | Negative charge type toner and method for manufacturing the same |
-
1988
- 1988-12-16 JP JP63319061A patent/JPH02163756A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5194356A (en) * | 1990-11-05 | 1993-03-16 | Xerox Corporation | Toner compositions |
| JPH06118693A (en) * | 1992-10-07 | 1994-04-28 | Tomoegawa Paper Co Ltd | Non-magnetic one-component developing method |
| WO1994015264A1 (en) * | 1992-12-23 | 1994-07-07 | The University Of Western Ontario | Plasma treatment of polymer powders |
| JPH09160290A (en) * | 1995-12-08 | 1997-06-20 | Iwatsu Electric Co Ltd | Toner for developing magnetic latent image |
| JP2007121481A (en) * | 2005-10-26 | 2007-05-17 | Seiko Epson Corp | Negative charge type toner and method for manufacturing the same |
| JP2007121483A (en) * | 2005-10-26 | 2007-05-17 | Seiko Epson Corp | Negative charge type toner and method for manufacturing the same |
| JP4605383B2 (en) * | 2005-10-26 | 2011-01-05 | セイコーエプソン株式会社 | Negatively chargeable toner and method for producing the same |
| JP4605382B2 (en) * | 2005-10-26 | 2011-01-05 | セイコーエプソン株式会社 | Negatively chargeable toner and method for producing the same |
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