EP1130479A3 - Composition for black toners having improved transfer capacity - Google Patents

Composition for black toners having improved transfer capacity Download PDF

Info

Publication number
EP1130479A3
EP1130479A3 EP01101677A EP01101677A EP1130479A3 EP 1130479 A3 EP1130479 A3 EP 1130479A3 EP 01101677 A EP01101677 A EP 01101677A EP 01101677 A EP01101677 A EP 01101677A EP 1130479 A3 EP1130479 A3 EP 1130479A3
Authority
EP
European Patent Office
Prior art keywords
colored
composition
toner particles
dried
transfer capacity
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.)
Withdrawn
Application number
EP01101677A
Other languages
German (de)
French (fr)
Other versions
EP1130479A2 (en
Inventor
Matthew Chigozie Ezenyilimba
William Keith Goebel
Donald Saul Rimai
Dinesh Tyagi
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.)
Eastman Kodak Co
Original Assignee
NexPress Solutions LLC
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 NexPress Solutions LLC filed Critical NexPress Solutions LLC
Publication of EP1130479A2 publication Critical patent/EP1130479A2/en
Publication of EP1130479A3 publication Critical patent/EP1130479A3/en
Withdrawn legal-status Critical Current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
    • G03G9/0819—Developers with toner particles characterised by the dimensions of the 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
    • G03G9/0821—Developers with toner particles characterised by physical parameters
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08755—Polyesters
    • 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds
    • 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds
    • G03G9/0904—Carbon black
    • 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
    • G03G9/09708—Inorganic compounds
    • 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
    • G03G9/09708—Inorganic compounds
    • G03G9/09725—Silicon-oxides; Silicates

Landscapes

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

Abstract

Eine Zusammensetzung von schwarzem Toner umfaßt getrocknete, eingefärbte LC-Tonerpartikel mit einem thermoplastischen Polymer und Kohlenstoff, der einen BET-Wert von bis zu ungefähr 140 aufweist, und einem partikelförmigen Zusatzmaterial, dessen Größe im Submikrometerbereich liegt und welches sich auf den getrockneten eingefärbten LC-Tonerpartikeln befindet. Ein Verfahren zur Herstellung der Tonerzusammensetzung umfasst das Herstellen von eingefärbten LC-Tonerpartikeln mit einem thermoplastischen Polymer und einem Kohlenstoffpigment, das einen BET-Wert von bis zu ungefähr 140 aufweist, das Trocknen der eingefärbten LC-Tonerpartikel und das Mischen der getrockneten, eingefärbten LC-Tonerpartikel mit dem partikelförmigen Zusatzmaterial, dessen Größe im Submikrometerbereich liegt.A composition of black toner comprises dried, colored LC toner particles with a thermoplastic polymer and carbon that has a BET value of up to about 140 and a particulate additive whose Size is in the submicrometer range and which is colored on the dried one LC toner particles. A process for producing the toner composition involves making colored LC toner particles with a thermoplastic Polymer and a carbon pigment that has a BET of up to about 140 comprises drying the colored LC toner particles and mixing the dried, colored LC toner particles with the particulate additional material, whose size is in the submicrometer range.

EP01101677A 2000-02-04 2001-01-30 Composition for black toners having improved transfer capacity Withdrawn EP1130479A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US498119 1995-07-05
US49811900A 2000-02-04 2000-02-04

Publications (2)

Publication Number Publication Date
EP1130479A2 EP1130479A2 (en) 2001-09-05
EP1130479A3 true EP1130479A3 (en) 2001-11-28

Family

ID=23979666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101677A Withdrawn EP1130479A3 (en) 2000-02-04 2001-01-30 Composition for black toners having improved transfer capacity

Country Status (3)

Country Link
US (1) US20010055722A1 (en)
EP (1) EP1130479A3 (en)
JP (1) JP2001249499A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070298346A1 (en) * 2006-06-22 2007-12-27 Eastman Kodak Company Toner particles of controlled morphology
US8546057B2 (en) 2011-01-31 2013-10-01 Eastman Kodak Company Carbon based black toners prepared via limited coalescence process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02118669A (en) * 1988-10-28 1990-05-02 Tdk Corp Electrophotographic toner and electrophotographic developing agent
EP0541113A1 (en) * 1991-11-08 1993-05-12 Canon Kabushiki Kaisha Monocomponent-type developer for developing electrostatic image and image forming method
JPH08234492A (en) * 1995-02-28 1996-09-13 Minolta Co Ltd Black toner for full-color image forming device
EP0762223A2 (en) * 1995-09-04 1997-03-12 Canon Kabushiki Kaisha Toner for developing electrostatic image
EP0869398A2 (en) * 1997-04-04 1998-10-07 Canon Kabushiki Kaisha Toner for developing electrostatic images and process for production thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02118669A (en) * 1988-10-28 1990-05-02 Tdk Corp Electrophotographic toner and electrophotographic developing agent
EP0541113A1 (en) * 1991-11-08 1993-05-12 Canon Kabushiki Kaisha Monocomponent-type developer for developing electrostatic image and image forming method
JPH08234492A (en) * 1995-02-28 1996-09-13 Minolta Co Ltd Black toner for full-color image forming device
EP0762223A2 (en) * 1995-09-04 1997-03-12 Canon Kabushiki Kaisha Toner for developing electrostatic image
EP0869398A2 (en) * 1997-04-04 1998-10-07 Canon Kabushiki Kaisha Toner for developing electrostatic images and process for production thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199024, Derwent World Patents Index; Class A04, AN 1990-181786, XP002179196 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) *

Also Published As

Publication number Publication date
EP1130479A2 (en) 2001-09-05
JP2001249499A (en) 2001-09-14
US20010055722A1 (en) 2001-12-27

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