ES2084785T3 - ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. - Google Patents

ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Info

Publication number
ES2084785T3
ES2084785T3 ES91311033T ES91311033T ES2084785T3 ES 2084785 T3 ES2084785 T3 ES 2084785T3 ES 91311033 T ES91311033 T ES 91311033T ES 91311033 T ES91311033 T ES 91311033T ES 2084785 T3 ES2084785 T3 ES 2084785T3
Authority
ES
Spain
Prior art keywords
electrophotographic toner
negative charge
toner
assistant
load control
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 - Lifetime
Application number
ES91311033T
Other languages
Spanish (es)
Inventor
Noriaki Tsubota
Masahiko Kubo
Kazuo Fuji
Akihiro Watanabe
Yoshihisa Kuramae
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial Co Ltd
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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Application granted granted Critical
Publication of ES2084785T3 publication Critical patent/ES2084785T3/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
    • G03G9/097—Plasticisers; Charge controlling agents
    • 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
    • G03G9/09783—Organo-metallic compounds

Landscapes

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

Abstract

UN TONER ELECTROFOTOGRAFICO PARA LA CARGA DE NEGATIVOS QUE CONSTA DE UNA RESINA POLIESTER COMO RESINA DE FIJACION Y UNA SAL DE AMONIACO CUATERNARIA QUE TIENE UN ANION OXIACIDO COMO ASISTENTE DE CONTROL DE CARGA EN COMBINACION CON UN AGENTE DE CONTROL DE CARGA PARA LA CARGA DE NEGATIVOS Y UN COLORANTE. LA SAL DE AMONIACO CUATERNARIA UTILIZADA COMO ASISTENTE ES INCOMPATIBLE CON LA RESINA DE FIJACION PERO DISPERSABLE EN LA MISMA. EL TONER PROPORCIONA UNA DISTRIBUCION NITIDA DE LA CANTIDAD DE CARGA DE MANERA TAL QUE SE IMPIDA LA FORMACION DE PARTICULAS DE TONER ALTAMENTE CARGADAS QUE NO CONTRIBUYEN AL DESARROLLO Y DE PARTICULAS DE TONER POBREMENTE CARGADAS QUE SE EXTIENDEN CON FACILIDAD.AN ELECTROPHOTOGRAPHIC TONER FOR LOADING NEGATIVES THAT CONSISTS OF A POLYESTER RESIN AS FIXING RESIN AND A QUATERNARY AMMONIA SALT THAT HAS AN OXIACID ANION AS A LOAD CONTROL ASSISTANT IN COMBINATION WITH A LOAD CONTROL AGENT FOR NEGATIVE LOADING A DYE. THE QUATERNARY AMMONIA SALT USED AS AN ASSISTANT IS INCOMPATIBLE WITH THE FIXING RESIN BUT DISPERSIBLE THEREIN. TONER PROVIDES A SHARP DISTRIBUTION OF THE AMOUNT OF LOAD SO THAT THE FORMATION OF HIGHLY LOADED TONER PARTICLES THAT DO NOT CONTRIBUTE TO DEVELOPMENT AND POORLY LOADED TONER PARTICLES THAT ARE EASILY EXTENDED.

ES91311033T 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. Expired - Lifetime ES2084785T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2328361A JP2609356B2 (en) 1990-11-28 1990-11-28 Negatively chargeable electrophotographic toner

Publications (1)

Publication Number Publication Date
ES2084785T3 true ES2084785T3 (en) 1996-05-16

Family

ID=18209390

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91311033T Expired - Lifetime ES2084785T3 (en) 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Country Status (4)

Country Link
EP (1) EP0488742B1 (en)
JP (1) JP2609356B2 (en)
DE (1) DE69116323T2 (en)
ES (1) ES2084785T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100278335B1 (en) * 1992-08-05 2001-01-15 아마노 아키히코 Charge control composition and toner containing the composition
US5753392A (en) * 1995-08-24 1998-05-19 Minnesota Mining And Manufacturing Company Method of electrostatically printing image-enhancing particles and said particles
US7314696B2 (en) 2001-06-13 2008-01-01 Eastman Kodak Company Electrophotographic toner and development process with improved charge to mass stability
US8147948B1 (en) 2010-10-26 2012-04-03 Eastman Kodak Company Printed article
US8530126B2 (en) 2010-10-26 2013-09-10 Eastman Kodak Company Large particle toner
US8465899B2 (en) 2010-10-26 2013-06-18 Eastman Kodak Company Large particle toner printing method
US8626015B2 (en) 2010-10-26 2014-01-07 Eastman Kodak Company Large particle toner printer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169857A (en) * 1984-02-13 1985-09-03 Orient Kagaku Kogyo Kk Electrostatic charge image developing toner
JPS6169073A (en) * 1984-09-12 1986-04-09 Orient Kagaku Kogyo Kk Toner for developing electrostatic charge image
US4762763A (en) * 1985-12-19 1988-08-09 Ricoh Co., Ltd. Toner for developing electrostatic latent image
JPS6368851A (en) * 1986-09-10 1988-03-28 Kao Corp Electrophotographic developer composition
EP0284000B1 (en) * 1987-03-25 1992-09-02 Hodogaya Chemical Co., Ltd. Quaternary ammonium salt and electrophotographic toner
JP2710342B2 (en) * 1988-07-11 1998-02-10 株式会社リコー Toner for developing electrostatic images

Also Published As

Publication number Publication date
JP2609356B2 (en) 1997-05-14
DE69116323D1 (en) 1996-02-22
EP0488742A1 (en) 1992-06-03
JPH04195148A (en) 1992-07-15
DE69116323T2 (en) 1996-09-05
EP0488742B1 (en) 1996-01-10

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