JPS649470A - Carrier for developing electrostatic charge image and manufacture of same - Google Patents

Carrier for developing electrostatic charge image and manufacture of same

Info

Publication number
JPS649470A
JPS649470A JP62164861A JP16486187A JPS649470A JP S649470 A JPS649470 A JP S649470A JP 62164861 A JP62164861 A JP 62164861A JP 16486187 A JP16486187 A JP 16486187A JP S649470 A JPS649470 A JP S649470A
Authority
JP
Japan
Prior art keywords
carrier
acid
electrostatic charge
charge image
manufacture
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.)
Granted
Application number
JP62164861A
Other languages
Japanese (ja)
Other versions
JPH0731423B2 (en
Inventor
Akizo Shirase
Hiroyuki Takagiwa
Takeki Okuyama
Hirotaka Kabashima
Seiji Kojima
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP62164861A priority Critical patent/JPH0731423B2/en
Publication of JPS649470A publication Critical patent/JPS649470A/en
Publication of JPH0731423B2 publication Critical patent/JPH0731423B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1133—Macromolecular components of coatings obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/1134—Macromolecular components of coatings obtained by reactions only involving carbon-to-carbon unsaturated bonds containing fluorine atoms
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1138—Non-macromolecular organic components of coatings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To extend usable life and to enhance rising speed of electric charging by incorporating an aliphatic acid metal salt in the surfaces of carrier particles coated with a fluoropolymer. CONSTITUTION:The electrostatic charge image developing carrier is obtained by coating a magnetic powder, such as Fe, Ni, ferrite, or Co, with the fluoropolymer, such as polyvinylidene fluoride or polytetrafluoroethylene, and the surface of the carrier contains the metal salt, such as Li, Na, K, Cu, or Ag, of the aliphatic acid, such as stearic acid, caprilic acid, or pelagonic acid, especially, stearic acid in respect of enhancing the rising speed of charging, preferably, in an amount of 0.001-0.04wt.% of the carrier. The diameter of the magnetic particles coated with the resin is, preferably, in the range of 40-200mum.
JP62164861A 1987-07-01 1987-07-01 Carrier for developing electrostatic image and method for producing the same Expired - Lifetime JPH0731423B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164861A JPH0731423B2 (en) 1987-07-01 1987-07-01 Carrier for developing electrostatic image and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164861A JPH0731423B2 (en) 1987-07-01 1987-07-01 Carrier for developing electrostatic image and method for producing the same

Publications (2)

Publication Number Publication Date
JPS649470A true JPS649470A (en) 1989-01-12
JPH0731423B2 JPH0731423B2 (en) 1995-04-10

Family

ID=15801313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164861A Expired - Lifetime JPH0731423B2 (en) 1987-07-01 1987-07-01 Carrier for developing electrostatic image and method for producing the same

Country Status (1)

Country Link
JP (1) JPH0731423B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5171653A (en) * 1991-09-06 1992-12-15 Xerox Corporation Electrostatic developing composition with carrier having external additive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5171653A (en) * 1991-09-06 1992-12-15 Xerox Corporation Electrostatic developing composition with carrier having external additive

Also Published As

Publication number Publication date
JPH0731423B2 (en) 1995-04-10

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