JPS57660A - Carrier for developing electrostatic charge image - Google Patents

Carrier for developing electrostatic charge image

Info

Publication number
JPS57660A
JPS57660A JP7282780A JP7282780A JPS57660A JP S57660 A JPS57660 A JP S57660A JP 7282780 A JP7282780 A JP 7282780A JP 7282780 A JP7282780 A JP 7282780A JP S57660 A JPS57660 A JP S57660A
Authority
JP
Japan
Prior art keywords
carrier
resin
styrene
coating layer
core particles
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
JP7282780A
Other languages
Japanese (ja)
Inventor
Keiji Sato
Hiroshi Tokura
Makoto Tomono
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 JP7282780A priority Critical patent/JPS57660A/en
Priority to DE19813113157 priority patent/DE3113157A1/en
Publication of JPS57660A publication Critical patent/JPS57660A/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
    • G03G9/10—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
    • G03G9/1137—Macromolecular components of coatings being crosslinked
    • 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
    • G03G9/103—Glass particles
    • 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
    • G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/1136—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon atoms

Landscapes

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

Abstract

PURPOSE:To obtain the titled carrier causing no exfoliation of a coating layer owing to high adhesion and having a long life by adding styreneacrylic resin and cellulose ester resin so as to form the coating layer of core particles. CONSTITUTION:Styrene-acrylic resin such as styrene-(meth)acrylic ester copolymer preferably having about 5,000-500,000 average mol.wt. and cellulose ester resin such as cellulose acetate resin are dissolved in an org. solvent, and the surfaces of core particles such as iron powder or glass beads having about 30-1000mum particle size are coated with the soln. and dried by heating to form coating layers having about 0.1-20mum thickness. Thus, a carrier is obtd. This carrier is suitable especially for use as a carrier for a two-component developer for a magnetic brush method, a cascade method, etc.
JP7282780A 1980-04-03 1980-06-02 Carrier for developing electrostatic charge image Pending JPS57660A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7282780A JPS57660A (en) 1980-06-02 1980-06-02 Carrier for developing electrostatic charge image
DE19813113157 DE3113157A1 (en) 1980-04-03 1981-04-01 Support for a developer for electrophotography, a developer containing this support, and a process for the development of an electrostatic image using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7282780A JPS57660A (en) 1980-06-02 1980-06-02 Carrier for developing electrostatic charge image

Publications (1)

Publication Number Publication Date
JPS57660A true JPS57660A (en) 1982-01-05

Family

ID=13500630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7282780A Pending JPS57660A (en) 1980-04-03 1980-06-02 Carrier for developing electrostatic charge image

Country Status (1)

Country Link
JP (1) JPS57660A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142949U (en) * 1982-03-19 1983-09-27 日本インター株式会社 semiconductor equipment
JPS6289360A (en) * 1985-10-15 1987-04-23 シ−メンス、アクチエンゲゼルシヤフト Power thyristor
EP0708379A2 (en) 1994-10-05 1996-04-24 Toda Kogyo Corp. Magnetic carrier for electrophotography

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142949U (en) * 1982-03-19 1983-09-27 日本インター株式会社 semiconductor equipment
JPS6289360A (en) * 1985-10-15 1987-04-23 シ−メンス、アクチエンゲゼルシヤフト Power thyristor
EP0708379A2 (en) 1994-10-05 1996-04-24 Toda Kogyo Corp. Magnetic carrier for electrophotography

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