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JPS56123550A - Toner for developing electrostatic charge - Google Patents

Toner for developing electrostatic charge

Info

Publication number
JPS56123550A
JPS56123550A JP2750780A JP2750780A JPS56123550A JP S56123550 A JPS56123550 A JP S56123550A JP 2750780 A JP2750780 A JP 2750780A JP 2750780 A JP2750780 A JP 2750780A JP S56123550 A JPS56123550 A JP S56123550A
Authority
JP
Japan
Prior art keywords
toner
silica
treated
toner particles
outside
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
JP2750780A
Other languages
Japanese (ja)
Inventor
Tsuneaki Kawanishi
Akio Kobi
Yasuki Mori
Yasusada Morishita
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 JP2750780A priority Critical patent/JPS56123550A/en
Publication of JPS56123550A publication Critical patent/JPS56123550A/en
Pending legal-status Critical Current

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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G03G9/09716—Inorganic compounds treated with organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To improve the shelf stability and fluidity of a toner and almost prevent the formation of a toner film on the surfaces of a photoreceptor and a carrier by sticking a specified amount of silane-treated silica fine powder to the outside of the toner. CONSTITUTION:Finely powdered silica treated with a silane coupling agent such as aminosilane or chlorosilane is stuck to the outside of toner particles contg. a binder resin, a colorant, etc. by 0.05-5wt% to the total amount of the resulting toner. The particle size of the silica is 0.01-1mu and smaller than that of the toner particles. The pulverized toner particles and the treated silica powder are fed into an electric furnace by spraying, sphered, and classified. They may be mixed well with a supermixer. The resulting toner gives a clear transferred image even on ordinary paper and does not cause unevenness in the image and ground fog. In addition, a developer contg. this toner is held stably.
JP2750780A 1980-03-05 1980-03-05 Toner for developing electrostatic charge Pending JPS56123550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2750780A JPS56123550A (en) 1980-03-05 1980-03-05 Toner for developing electrostatic charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2750780A JPS56123550A (en) 1980-03-05 1980-03-05 Toner for developing electrostatic charge

Publications (1)

Publication Number Publication Date
JPS56123550A true JPS56123550A (en) 1981-09-28

Family

ID=12223044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2750780A Pending JPS56123550A (en) 1980-03-05 1980-03-05 Toner for developing electrostatic charge

Country Status (1)

Country Link
JP (1) JPS56123550A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176753A (en) * 1983-03-26 1984-10-06 Toshiba Corp Developer
JPS60162264A (en) * 1984-02-02 1985-08-24 Matsushita Electric Ind Co Ltd Image forming particles
JPS62258472A (en) * 1986-05-01 1987-11-10 Sharp Corp Developer for electrostatic copying machine
EP0558046A1 (en) * 1992-02-28 1993-09-01 Eastman Kodak Company Toner compositions
US5429902A (en) * 1992-11-20 1995-07-04 Fuji Xerox Co., Ltd. Electrophotographic toner composition and image formation method using the same
US8663885B2 (en) 2011-08-11 2014-03-04 Kyocera Document Solutions Inc. Positively chargeable toner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176753A (en) * 1983-03-26 1984-10-06 Toshiba Corp Developer
JPS60162264A (en) * 1984-02-02 1985-08-24 Matsushita Electric Ind Co Ltd Image forming particles
JPS62258472A (en) * 1986-05-01 1987-11-10 Sharp Corp Developer for electrostatic copying machine
EP0558046A1 (en) * 1992-02-28 1993-09-01 Eastman Kodak Company Toner compositions
US5429902A (en) * 1992-11-20 1995-07-04 Fuji Xerox Co., Ltd. Electrophotographic toner composition and image formation method using the same
US8663885B2 (en) 2011-08-11 2014-03-04 Kyocera Document Solutions Inc. Positively chargeable toner

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