ES399004A1 - Improved electrophotographic process - Google Patents

Improved electrophotographic process

Info

Publication number
ES399004A1
ES399004A1 ES399004A ES399004A ES399004A1 ES 399004 A1 ES399004 A1 ES 399004A1 ES 399004 A ES399004 A ES 399004A ES 399004 A ES399004 A ES 399004A ES 399004 A1 ES399004 A1 ES 399004A1
Authority
ES
Spain
Prior art keywords
carrier
electrophotographic process
toner
improved electrophotographic
coated
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
ES399004A
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 ES399004A1 publication Critical patent/ES399004A1/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
    • G03G9/1133—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
    • G03G9/1132—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
    • 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

Landscapes

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

Abstract

This is an electrophotographic process comprising the step of contacting a latent electrostatic image with a developer comprising carrier and toner. The carrier is a core coated with a continuous film of a fluoropolymer and a modifying resin. This carrier has a positive triboelectric charge with respect to the toner. This positive charge is obtained by curing the coated carrier at a temperature less than 700 DEG F.
ES399004A 1971-01-28 1972-01-19 Improved electrophotographic process Expired ES399004A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11075671A 1971-01-28 1971-01-28

Publications (1)

Publication Number Publication Date
ES399004A1 true ES399004A1 (en) 1974-11-01

Family

ID=22334771

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399004A Expired ES399004A1 (en) 1971-01-28 1972-01-19 Improved electrophotographic process

Country Status (8)

Country Link
US (1) US3778262A (en)
CA (1) CA964512A (en)
CH (1) CH576661A5 (en)
DE (1) DE2203622C3 (en)
ES (1) ES399004A1 (en)
GB (1) GB1306630A (en)
IT (1) IT940701B (en)
NL (1) NL168060C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918968A (en) * 1971-01-28 1975-11-11 Ibm Electrophotographic process utilizing carrier particles coated with a fluoropolymer in development
US3947271A (en) * 1972-02-14 1976-03-30 International Business Machines Corporation Electrostatic imaging method using a polytetrafluoroethylene coated carrier particle
US4002570A (en) * 1973-12-26 1977-01-11 Xerox Corporation Electrophotographic developer with polyvinylidene fluoride additive
US3922381A (en) * 1974-06-14 1975-11-25 Addressorgrap Multigraph Corp Chemically treated carrier particles for use in electrophotographic process
US4297427A (en) * 1978-01-26 1981-10-27 Xerox Corporation Polyblend coated carrier materials
US4225660A (en) * 1979-01-08 1980-09-30 Pitney Bowes Inc. Treated toner carrier and method of making the same
US4265995A (en) * 1979-10-22 1981-05-05 Xerox Corporation Carrier core surface treatment
US4342824A (en) * 1980-05-27 1982-08-03 Imaging Systems Corporation Developer with coated carrier material and method of making
JPS5840557A (en) * 1981-09-03 1983-03-09 Canon Inc Electrophotographic developer
US4535047A (en) * 1983-04-04 1985-08-13 Allied Corporation Ferromagnetic amorphous metal carrier particles for electrophotographic toners
JPS6087349A (en) * 1983-10-19 1985-05-17 Canon Inc Toner coating method
US4971881A (en) * 1989-01-05 1990-11-20 Monsanto Company Toner composition comprising rosin modified styrene acrylic resin
US5102769A (en) * 1991-02-04 1992-04-07 Xerox Corporation Solution coated carrier particles
DE69219921T2 (en) * 1991-02-20 1997-11-06 Fuji Xerox Co Ltd Carrier for the development of electrostatic latent images and manufacturing processes
US5627001A (en) * 1995-10-05 1997-05-06 Nashua Corporation Coated carrier particle containing a charge control agent

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT453731A (en) * 1948-05-01
US2618551A (en) * 1948-10-20 1952-11-18 Haloid Co Developer for electrostatic images
US3093039A (en) * 1958-05-12 1963-06-11 Xerox Corp Apparatus for transferring powder images and method therefor
US3533835A (en) * 1966-10-11 1970-10-13 Xerox Corp Electrostatographic developer mixture
US3507686A (en) * 1967-06-23 1970-04-21 Xerox Corp Method of coating carrier beads
US3558492A (en) * 1969-06-11 1971-01-26 Du Pont Ferromagnetic chromium oxide recording members and compositions stabilized with tertiary amine-containing polymers

Also Published As

Publication number Publication date
GB1306630A (en) 1973-02-14
NL7200842A (en) 1972-08-01
US3778262A (en) 1973-12-11
NL168060C (en) 1982-02-16
DE2203622C3 (en) 1975-09-25
DE2203622B2 (en) 1975-02-20
CH576661A5 (en) 1976-06-15
DE2203622A1 (en) 1972-08-10
IT940701B (en) 1973-02-20
CA964512A (en) 1975-03-18
NL168060B (en) 1981-09-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19920227