EP0609443A4 - Colored toner for developing electrostatic image. - Google Patents

Colored toner for developing electrostatic image.

Info

Publication number
EP0609443A4
EP0609443A4 EP92921832A EP92921832A EP0609443A4 EP 0609443 A4 EP0609443 A4 EP 0609443A4 EP 92921832 A EP92921832 A EP 92921832A EP 92921832 A EP92921832 A EP 92921832A EP 0609443 A4 EP0609443 A4 EP 0609443A4
Authority
EP
European Patent Office
Prior art keywords
developing electrostatic
colored toner
electrostatic image
toner
polymer 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.)
Granted
Application number
EP92921832A
Other languages
German (de)
French (fr)
Other versions
EP0609443A1 (en
EP0609443B1 (en
Inventor
Hiroshi Kamada
Hitoshi Masuda
Yukinobu Hasegawa
Hiroyoshi Shimomura
Hiroshi Serizawa
Kensuke Okuda
Masatoshi Maruyama
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.)
Nippon Carbide Industries Co Inc
Original Assignee
Nippon Carbide Industries Co 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
Priority claimed from JP3301214A external-priority patent/JP3037799B2/en
Priority claimed from JP03308237A external-priority patent/JP3114295B2/en
Application filed by Nippon Carbide Industries Co Inc filed Critical Nippon Carbide Industries Co Inc
Publication of EP0609443A1 publication Critical patent/EP0609443A1/en
Publication of EP0609443A4 publication Critical patent/EP0609443A4/en
Application granted granted Critical
Publication of EP0609443B1 publication Critical patent/EP0609443B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0906—Organic dyes
    • 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
    • G03G9/0802—Preparation methods
    • G03G9/0804—Preparation methods whereby the components are brought together in a liquid dispersing medium
    • 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
    • G03G9/0825—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
    • G03G9/087—Binders for toner particles
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08791—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by the presence of specified groups or side chains

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

A colored toner for developing electrostatic images which has a degree of gelation of 2.0 % or less and comprises an association of secondary particles containing polymer particles having acidic or basic polar groups and an organic pigment and/or an organic dye treated with a treatment containing a surface treatment which has the same ionic character as that of the polymer particles in such a manner that the absolute value of zeta -potential will be 10 to 100 mV at a pH value of 5; and a developer for electrostatic images which comprises said toner and a carrier.
EP92921832A 1991-10-22 1992-10-21 Colored toner for developing electrostatic image Expired - Lifetime EP0609443B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP3301214A JP3037799B2 (en) 1991-10-22 1991-10-22 Color toner for electrostatic image development
JP301214/91 1991-10-22
JP308237/91 1991-10-29
JP03308237A JP3114295B2 (en) 1991-10-29 1991-10-29 Toner for electrostatic image development
PCT/JP1992/001371 WO1993008510A1 (en) 1991-10-22 1992-10-21 Colored toner for developing electrostatic image

Publications (3)

Publication Number Publication Date
EP0609443A1 EP0609443A1 (en) 1994-08-10
EP0609443A4 true EP0609443A4 (en) 1995-04-19
EP0609443B1 EP0609443B1 (en) 1999-01-27

Family

ID=26562605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92921832A Expired - Lifetime EP0609443B1 (en) 1991-10-22 1992-10-21 Colored toner for developing electrostatic image

Country Status (4)

Country Link
EP (1) EP0609443B1 (en)
CA (1) CA2121893C (en)
DE (1) DE69228314T2 (en)
WO (1) WO1993008510A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9708815D0 (en) 1997-05-01 1997-06-25 Zeneca Ltd Process for making particulate compositions
GB9806934D0 (en) 1998-04-01 1998-05-27 Zeneca Ltd Process for making particulate compositions
JP6310827B2 (en) * 2014-09-16 2018-04-11 株式会社東芝 Method for producing toner for electrophotography

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615749A (en) * 1970-06-19 1971-10-26 American Cyanamid Co Printing ink of improved blackness
US4218530A (en) * 1977-05-02 1980-08-19 Xerox Corporation Single component magnetic toner
EP0185509A1 (en) * 1984-12-18 1986-06-25 Xerox Corporation Toner compositions
JPS63186253A (en) * 1987-01-29 1988-08-01 Nippon Carbide Ind Co Ltd Toner for developing electrostatic charge image
JPS63282749A (en) * 1987-05-15 1988-11-18 Nippon Carbide Ind Co Ltd Electrostatic charge image developing toner
EP0302939A1 (en) * 1987-01-29 1989-02-15 Nippon Carbide Kogyo Kabushiki Kaisha Toner for developing electrostatically charged image
JPH01186964A (en) * 1988-01-20 1989-07-26 Minolta Camera Co Ltd Photoconductive toner and production thereof
JPH03267947A (en) * 1989-07-31 1991-11-28 Ricoh Co Ltd Color toner for developing electrostatic charge image
US5118588A (en) * 1990-03-30 1992-06-02 Eastman Kodak Company Toner particles having improved transfer efficiency and which comprise a pigment surface modifier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687174B2 (en) * 1986-11-11 1994-11-02 東洋インキ製造株式会社 Toner for electrostatic charge development

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615749A (en) * 1970-06-19 1971-10-26 American Cyanamid Co Printing ink of improved blackness
US4218530A (en) * 1977-05-02 1980-08-19 Xerox Corporation Single component magnetic toner
EP0185509A1 (en) * 1984-12-18 1986-06-25 Xerox Corporation Toner compositions
JPS63186253A (en) * 1987-01-29 1988-08-01 Nippon Carbide Ind Co Ltd Toner for developing electrostatic charge image
EP0302939A1 (en) * 1987-01-29 1989-02-15 Nippon Carbide Kogyo Kabushiki Kaisha Toner for developing electrostatically charged image
JPS63282749A (en) * 1987-05-15 1988-11-18 Nippon Carbide Ind Co Ltd Electrostatic charge image developing toner
JPH01186964A (en) * 1988-01-20 1989-07-26 Minolta Camera Co Ltd Photoconductive toner and production thereof
JPH03267947A (en) * 1989-07-31 1991-11-28 Ricoh Co Ltd Color toner for developing electrostatic charge image
US5118588A (en) * 1990-03-30 1992-06-02 Eastman Kodak Company Toner particles having improved transfer efficiency and which comprise a pigment surface modifier

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 475 (P - 950) 27 October 1989 (1989-10-27) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 080 (P - 1318) 26 February 1992 (1992-02-26) *
See also references of WO9308510A1 *

Also Published As

Publication number Publication date
DE69228314T2 (en) 1999-06-10
CA2121893C (en) 2003-01-21
CA2121893A1 (en) 1993-04-29
DE69228314D1 (en) 1999-03-11
EP0609443A1 (en) 1994-08-10
EP0609443B1 (en) 1999-01-27
WO1993008510A1 (en) 1993-04-29

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