JPS5526518A - Magnetic toner - Google Patents
Magnetic tonerInfo
- Publication number
- JPS5526518A JPS5526518A JP9925578A JP9925578A JPS5526518A JP S5526518 A JPS5526518 A JP S5526518A JP 9925578 A JP9925578 A JP 9925578A JP 9925578 A JP9925578 A JP 9925578A JP S5526518 A JPS5526518 A JP S5526518A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- silicone oil
- magnetic toner
- alumina
- carbon black
- 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
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To obtain the magnetic toner for electrostatic copying which is easy to adjust its electric resistance and is of good fluidity by covering the same with the mixture of carbon black, alumina, etc. and silicone oil.
CONSTITUTION: Magnetic power is added to the mixture of polyamide resin or ethylene-vinyl acetate copolymer and polyethylene. After the mixture is melted and kneaded, it is cooled to solidify and ground. Next, the above ground matter is added and mixed to the mixture of one or more kinds of silicone oil, carbon black, alumina, silica or titanium oxide and silicone oil to cover the surfaces, after which the particles of about 5 to 30μ in grain size are classified out to provide the magnetic toner.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9925578A JPS5526518A (en) | 1978-08-15 | 1978-08-15 | Magnetic toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9925578A JPS5526518A (en) | 1978-08-15 | 1978-08-15 | Magnetic toner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5526518A true JPS5526518A (en) | 1980-02-26 |
Family
ID=14242595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9925578A Pending JPS5526518A (en) | 1978-08-15 | 1978-08-15 | Magnetic toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5526518A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56140356A (en) * | 1980-04-03 | 1981-11-02 | Toray Ind Inc | Dry toner |
JPS5779961A (en) * | 1980-11-06 | 1982-05-19 | Canon Inc | Developing method |
JPS57146262A (en) * | 1981-03-04 | 1982-09-09 | Minolta Camera Co Ltd | Positively charged toner for developing electrostatic latent image |
JPS57207259A (en) * | 1981-06-16 | 1982-12-18 | Matsushita Electric Ind Co Ltd | Developer |
JPS585752A (en) * | 1981-07-01 | 1983-01-13 | Bando Chem Ind Ltd | Magnetic toner for electrostatic transfer type electrophotography |
JPS5937555A (en) * | 1982-06-25 | 1984-03-01 | ミネソタ・マイニング・アンド・マニユフアクチユアリング・コンパニ− | Toner powder composition |
JPS59181359A (en) * | 1983-03-31 | 1984-10-15 | Fuji Photo Film Co Ltd | Capsule toner |
JPS60112052A (en) * | 1983-11-22 | 1985-06-18 | Kao Corp | Toner composition for electrophotographic developer |
JPS61294462A (en) * | 1985-06-21 | 1986-12-25 | Kyocera Corp | Negatively chargeable magnetic developer |
JPS6252564A (en) * | 1985-08-31 | 1987-03-07 | Kyocera Corp | Negative electrostatic chargeability developer |
JPH02217866A (en) * | 1989-02-20 | 1990-08-30 | Canon Inc | Developer |
JPH04119361A (en) * | 1990-09-11 | 1992-04-20 | Tomoegawa Paper Co Ltd | Electrophotographic developing solution |
JPH04194867A (en) * | 1990-11-22 | 1992-07-14 | Canon Inc | Electrostatic latent image developing developer, image forming device and device unit |
US5700616A (en) * | 1995-02-01 | 1997-12-23 | Canon Kabushiki Kaisha | Developer for developing an electrostatic image and image forming method |
US7022449B2 (en) | 2002-07-30 | 2006-04-04 | Canon Kabushiki Kaisha | Black toner with defined loss tangent |
WO2007013388A1 (en) * | 2005-07-25 | 2007-02-01 | Tomoegawa Co., Ltd. | Electrophotographic toner |
-
1978
- 1978-08-15 JP JP9925578A patent/JPS5526518A/en active Pending
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56140356A (en) * | 1980-04-03 | 1981-11-02 | Toray Ind Inc | Dry toner |
JPS5779961A (en) * | 1980-11-06 | 1982-05-19 | Canon Inc | Developing method |
JPS57146262A (en) * | 1981-03-04 | 1982-09-09 | Minolta Camera Co Ltd | Positively charged toner for developing electrostatic latent image |
JPH0117580B2 (en) * | 1981-06-16 | 1989-03-31 | Matsushita Electric Ind Co Ltd | |
JPS57207259A (en) * | 1981-06-16 | 1982-12-18 | Matsushita Electric Ind Co Ltd | Developer |
JPS585752A (en) * | 1981-07-01 | 1983-01-13 | Bando Chem Ind Ltd | Magnetic toner for electrostatic transfer type electrophotography |
JPH0136615B2 (en) * | 1981-07-01 | 1989-08-01 | Bando Chemical Ind | |
JPS5937555A (en) * | 1982-06-25 | 1984-03-01 | ミネソタ・マイニング・アンド・マニユフアクチユアリング・コンパニ− | Toner powder composition |
JPS59181359A (en) * | 1983-03-31 | 1984-10-15 | Fuji Photo Film Co Ltd | Capsule toner |
JPS60112052A (en) * | 1983-11-22 | 1985-06-18 | Kao Corp | Toner composition for electrophotographic developer |
JPS61294462A (en) * | 1985-06-21 | 1986-12-25 | Kyocera Corp | Negatively chargeable magnetic developer |
JPS6252564A (en) * | 1985-08-31 | 1987-03-07 | Kyocera Corp | Negative electrostatic chargeability developer |
JPH02217866A (en) * | 1989-02-20 | 1990-08-30 | Canon Inc | Developer |
JPH04119361A (en) * | 1990-09-11 | 1992-04-20 | Tomoegawa Paper Co Ltd | Electrophotographic developing solution |
JPH04194867A (en) * | 1990-11-22 | 1992-07-14 | Canon Inc | Electrostatic latent image developing developer, image forming device and device unit |
US5700616A (en) * | 1995-02-01 | 1997-12-23 | Canon Kabushiki Kaisha | Developer for developing an electrostatic image and image forming method |
US7022449B2 (en) | 2002-07-30 | 2006-04-04 | Canon Kabushiki Kaisha | Black toner with defined loss tangent |
US7300733B2 (en) | 2002-07-30 | 2007-11-27 | Canon Kabushiki Kaisha | Black toner with defined loss tangent |
WO2007013388A1 (en) * | 2005-07-25 | 2007-02-01 | Tomoegawa Co., Ltd. | Electrophotographic toner |
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