GB1174571A - Development of Electrostatic Images - Google Patents

Development of Electrostatic Images

Info

Publication number
GB1174571A
GB1174571A GB47079/65A GB4707965A GB1174571A GB 1174571 A GB1174571 A GB 1174571A GB 47079/65 A GB47079/65 A GB 47079/65A GB 4707965 A GB4707965 A GB 4707965A GB 1174571 A GB1174571 A GB 1174571A
Authority
GB
United Kingdom
Prior art keywords
resin
particles
metal
nov
colophony
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
GB47079/65A
Inventor
Charles Maho
Wilhelm Abeck
Rudolf Eppe
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to GB47079/65A priority Critical patent/GB1174571A/en
Priority to DE1522557A priority patent/DE1522557B2/en
Priority to FR82818A priority patent/FR1499641A/en
Priority to FR82819A priority patent/FR1499642A/en
Priority to FR82820A priority patent/FR1499643A/en
Priority to CH1598766A priority patent/CH473407A/en
Priority to CH1598866A priority patent/CH473410A/en
Priority to NL6615679A priority patent/NL6615679A/xx
Priority to BE689326A priority patent/BE689326A/xx
Priority to BE689325A priority patent/BE689325A/xx
Priority to NL6615678A priority patent/NL6615678A/xx
Priority to NL6615680A priority patent/NL6615680A/xx
Priority to BE689327A priority patent/BE689327A/xx
Publication of GB1174571A publication Critical patent/GB1174571A/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
    • G03G9/083—Magnetic toner particles
    • G03G9/0831—Chemical composition of the magnetic components
    • G03G9/0832—Metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/16—Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing
    • 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
    • G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components
    • 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
    • G03G9/083—Magnetic toner particles
    • G03G9/0837—Structural characteristics of the magnetic components, e.g. shape, 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
    • G03G9/083—Magnetic toner particles
    • G03G9/0838—Size of magnetic components
    • 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
    • G03G9/083—Magnetic toner particles
    • G03G9/0839—Treatment of the magnetic components; Combination of the magnetic components with non-magnetic materials
    • 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
    • G03G9/09733—Organic compounds
    • G03G9/09741—Organic compounds cationic
    • 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
    • G03G9/09733—Organic compounds
    • G03G9/0975—Organic compounds anionic
    • 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
    • G03G9/1132—Macromolecular components of coatings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1,174,571. Electro-photographic developers. GEVAERT-AGFA N.V. Nov.4, 1966 [Nov. 5, 1965], No.47079/65. Heading G2H. Spherical or substantially spherical particles prepared by abruptly cooling droplets of molten ferromagnetic metal by a liquid medium, and which are optionally coated with another metal or a thermoplastic resin, are used as carriers in the development of conductivity and electrostatic charge images. The metal particles are preferably pure iron, or steel containing C, Ni, Mn, Mo and/ or Cr. The particles are preferably made by forming molten drops of metal using a gas/wire gun, cooling in a container containing an upper layer of water and a lower layer of a chlorinated liquid containing an anti-oxidant, mixing with tungsten trisulphide and heating in a reducing atmosphere. The resin may be cellulose nitrate, colophony or its esters, ethyl cellulose, hydrogenated rosin glycerol ester, a vinyl copolymer containing acid groups, or a polyamide or silicone, resin. An anionic or cationic surfactant (e.g. a nitrate salt of an amino amide, and/or an organic phosphate) may be incorporated in the resin or absorbed on the metal particles. The carrier particles may be used in conjunction with either toner particles consisting of an esterified colophony/ maleic anhydride condensate, nigrosine, pitch and tricresyl phosphate or toner particles which consist of metal particles which have been prepared in a similar manner to the carrier, and which may be coated with a resin (e.g. a polyamide resin, an epoxy resin, asphalt, or a heat-curable phenol-formaldehyde or a urea-formaldehyde resin).
GB47079/65A 1965-11-05 1965-11-05 Development of Electrostatic Images Expired GB1174571A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
GB47079/65A GB1174571A (en) 1965-11-05 1965-11-05 Development of Electrostatic Images
DE1522557A DE1522557B2 (en) 1965-11-05 1966-11-03 Process for the preparation of toner or carrier particles for electrophotographic developers
FR82818A FR1499641A (en) 1965-11-05 1966-11-04 Method of developing electrostatic images and materials suitable therefor
FR82819A FR1499642A (en) 1965-11-05 1966-11-04 Method of preparing metal particles
FR82820A FR1499643A (en) 1965-11-05 1966-11-04 Method for developing latent magnetic images and using developing particles for this
CH1598766A CH473407A (en) 1965-11-05 1966-11-05 Process for developing electrostatic images
CH1598866A CH473410A (en) 1965-11-05 1966-11-05 Process for developing magnetic images
NL6615679A NL6615679A (en) 1965-11-05 1966-11-07
BE689326A BE689326A (en) 1965-11-05 1966-11-07
BE689325A BE689325A (en) 1965-11-05 1966-11-07
NL6615678A NL6615678A (en) 1965-11-05 1966-11-07
NL6615680A NL6615680A (en) 1965-11-05 1966-11-07
BE689327A BE689327A (en) 1965-11-05 1966-11-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47079/65A GB1174571A (en) 1965-11-05 1965-11-05 Development of Electrostatic Images

Publications (1)

Publication Number Publication Date
GB1174571A true GB1174571A (en) 1969-12-17

Family

ID=10443640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47079/65A Expired GB1174571A (en) 1965-11-05 1965-11-05 Development of Electrostatic Images

Country Status (6)

Country Link
BE (3) BE689327A (en)
CH (2) CH473410A (en)
DE (1) DE1522557B2 (en)
FR (3) FR1499641A (en)
GB (1) GB1174571A (en)
NL (3) NL6615678A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434461A1 (en) * 1973-07-18 1975-02-06 Eastman Kodak Co ELECTROPHOTOGRAPHIC DEVELOPER
US4055684A (en) * 1974-12-02 1977-10-25 Addressograph Multigraph Corporation Coated carrier particles for use in electrophotographic process
US4256824A (en) * 1979-03-12 1981-03-17 Xerox Corporation Method using positively charged electrophotographic toner containing amido dialkyl hydroxy ammonium compound
US4310611A (en) 1979-06-29 1982-01-12 Eastman Kodak Company Electrographic magnetic carrier particles
US4338390A (en) * 1980-12-04 1982-07-06 Xerox Corporation Quarternary ammonium sulfate or sulfonate charge control agents for electrophotographic developers compatible with viton fuser
USRE32883E (en) * 1980-12-04 1989-03-07 Xerox Corporation Quarternary ammonium sulfate or sulfonate charge control agents for electrophotographic developers compatible with viton fuser
US4996126A (en) * 1988-01-20 1991-02-26 Minolta Camera Kabushiki Kaisha Developer having specific spheriodicity
EP0497817A1 (en) * 1989-10-23 1992-08-12 Olin Hunt Sub I Corp Electrostatographic particulate toner and developer compositions.

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA944994A (en) * 1969-02-17 1974-04-09 Howard A. Miller Highly conductive carrier particles
CA1060696A (en) * 1975-07-09 1979-08-21 Eastman Kodak Company Electrographic toner and developer composition
US4078930A (en) * 1975-10-28 1978-03-14 Xerox Corporation Developer compositions comprising toner and carrier
IT1071148B (en) * 1976-07-29 1985-04-02 Indesit TOOL AND MACHINE FOR ASSEMBLING ELECTROLYTIC CAPACITORS
JPS5567754A (en) * 1978-11-13 1980-05-22 Ibm Developer for copier
FR2449911A1 (en) * 1979-02-23 1980-09-19 Cii Honeywell Bull MAGNETIC TYPE PRINTING METHOD AND PRINTING MACHINE IMPLEMENTING SAID METHOD

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434461A1 (en) * 1973-07-18 1975-02-06 Eastman Kodak Co ELECTROPHOTOGRAPHIC DEVELOPER
US4055684A (en) * 1974-12-02 1977-10-25 Addressograph Multigraph Corporation Coated carrier particles for use in electrophotographic process
US4256824A (en) * 1979-03-12 1981-03-17 Xerox Corporation Method using positively charged electrophotographic toner containing amido dialkyl hydroxy ammonium compound
US4310611A (en) 1979-06-29 1982-01-12 Eastman Kodak Company Electrographic magnetic carrier particles
US4338390A (en) * 1980-12-04 1982-07-06 Xerox Corporation Quarternary ammonium sulfate or sulfonate charge control agents for electrophotographic developers compatible with viton fuser
USRE32883E (en) * 1980-12-04 1989-03-07 Xerox Corporation Quarternary ammonium sulfate or sulfonate charge control agents for electrophotographic developers compatible with viton fuser
US4996126A (en) * 1988-01-20 1991-02-26 Minolta Camera Kabushiki Kaisha Developer having specific spheriodicity
EP0497817A1 (en) * 1989-10-23 1992-08-12 Olin Hunt Sub I Corp Electrostatographic particulate toner and developer compositions.
EP0497817A4 (en) * 1989-10-23 1992-12-16 Olin Hunt Sub I Corp. Electrostatographic particulate toner and developer compositions

Also Published As

Publication number Publication date
CH473407A (en) 1969-05-31
FR1499641A (en) 1967-10-27
NL6615679A (en) 1967-04-25
NL6615678A (en) 1967-04-25
BE689326A (en) 1967-05-08
BE689325A (en) 1967-05-08
FR1499642A (en) 1967-10-27
BE689327A (en) 1967-05-08
CH473410A (en) 1969-05-31
FR1499643A (en) 1967-10-27
DE1522557B2 (en) 1974-11-07
DE1522557A1 (en) 1969-09-18
NL6615680A (en) 1967-04-25

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed