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ES485865A1 - Electrophotographical developer material and its use. - Google Patents

Electrophotographical developer material and its use.

Info

Publication number
ES485865A1
ES485865A1 ES485865A ES485865A ES485865A1 ES 485865 A1 ES485865 A1 ES 485865A1 ES 485865 A ES485865 A ES 485865A ES 485865 A ES485865 A ES 485865A ES 485865 A1 ES485865 A1 ES 485865A1
Authority
ES
Spain
Prior art keywords
weight
particles
approximately
developer material
electrophotographical
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.)
Expired
Application number
ES485865A
Other languages
Spanish (es)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of ES485865A1 publication Critical patent/ES485865A1/en
Expired 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
    • G03G9/1135—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
    • G03G9/1133—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
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1139—Inorganic components of coatings

Landscapes

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

Abstract

1. Electrophotographic developer material containing toner and carrier particles, characterized in that the carrier particles consist of cores coated with an abrasion-proof resin system comprising a) approximately 5 to 55% by weight polytetrafluoroethylene, b) approximately 5 to 55% by weight fluoronated polyethylenepropylene, and c) approximately 40 to 80% by weight poly(amide-imide) which is thermally stable up to at least 316 degrees C and of a triboelectrically negative charge and that the toner comprises particles with the following size distribution : a) less than 15% by weight particles smaller than 16 mu m b) 7 to 15% by weight particles smaller than 5 mu m c) the remaining particles with a size between 5 and 16 mu m, and that it has a median size by weight between 8 and 12 mu m.
ES485865A 1978-11-13 1979-11-12 Electrophotographical developer material and its use. Expired ES485865A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96013878A 1978-11-13 1978-11-13

Publications (1)

Publication Number Publication Date
ES485865A1 true ES485865A1 (en) 1980-06-16

Family

ID=25502834

Family Applications (1)

Application Number Title Priority Date Filing Date
ES485865A Expired ES485865A1 (en) 1978-11-13 1979-11-12 Electrophotographical developer material and its use.

Country Status (10)

Country Link
EP (1) EP0011688B1 (en)
JP (1) JPS5567754A (en)
AR (1) AR227516A1 (en)
AT (1) ATE3089T1 (en)
BR (1) BR7907326A (en)
CA (1) CA1132828A (en)
DE (1) DE2965199D1 (en)
ES (1) ES485865A1 (en)
IT (1) IT1165364B (en)
ZA (1) ZA795237B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157656A (en) * 1983-02-28 1984-09-07 Nippon Teppun Kk Carrier material for electrostatic image development
JPH0719080B2 (en) * 1985-10-30 1995-03-06 ゼロックス コ−ポレ−ション Method for producing carrier particles
JP2569521B2 (en) * 1987-01-26 1997-01-08 富士ゼロックス株式会社 Carrier for developer
US5409793A (en) * 1994-04-01 1995-04-25 Xerox Corporation Polyimide-imine toner and developer compositions
US5567562A (en) * 1995-01-17 1996-10-22 Xerox Corporation Coated carrier particles and processes thereof
EP1657595B1 (en) * 2004-11-11 2013-05-15 Powdertech Co., Ltd. Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE420975A (en) * 1937-04-07 1937-05-31
GB1174571A (en) * 1965-11-05 1969-12-17 Agfa Gevaert Nv Development of Electrostatic Images
FR1473083A (en) * 1966-01-03 1967-03-17 Fuji Photo Film Co Ltd Developers for electrophotography
CA940360A (en) * 1969-06-19 1974-01-22 Robert J. Hagenbach Developer material
US3918968A (en) * 1971-01-28 1975-11-11 Ibm Electrophotographic process utilizing carrier particles coated with a fluoropolymer in development
US3873355A (en) * 1971-01-28 1975-03-25 Ibm Coated carrier particles
US3947271A (en) * 1972-02-14 1976-03-30 International Business Machines Corporation Electrostatic imaging method using a polytetrafluoroethylene coated carrier particle
GB1438973A (en) * 1972-05-30 1976-06-09 Xerox Corp Developdr material
GB1497731A (en) * 1974-05-30 1978-01-12 Xerox Corp Classified toner particles for electrostatographic developers

Also Published As

Publication number Publication date
AR227516A1 (en) 1982-11-15
IT7927149A0 (en) 1979-11-09
IT1165364B (en) 1987-04-22
EP0011688B1 (en) 1983-04-13
CA1132828A (en) 1982-10-05
DE2965199D1 (en) 1983-05-19
EP0011688A1 (en) 1980-06-11
JPS5567754A (en) 1980-05-22
BR7907326A (en) 1980-07-22
ZA795237B (en) 1980-09-24
ATE3089T1 (en) 1983-04-15
JPS5647551B2 (en) 1981-11-10

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