JPS5526518A - Magnetic toner - Google Patents

Magnetic toner

Info

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
Application number
JP9925578A
Other languages
Japanese (ja)
Inventor
Masumi Asanae
Koji Noguchi
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP9925578A priority Critical patent/JPS5526518A/en
Publication of JPS5526518A publication Critical patent/JPS5526518A/en
Pending legal-status Critical Current

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
JP9925578A 1978-08-15 1978-08-15 Magnetic toner Pending JPS5526518A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (19)

* Cited by examiner, † Cited by third party
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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