ES2091883T3 - ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. - Google Patents

ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Info

Publication number
ES2091883T3
ES2091883T3 ES91311034T ES91311034T ES2091883T3 ES 2091883 T3 ES2091883 T3 ES 2091883T3 ES 91311034 T ES91311034 T ES 91311034T ES 91311034 T ES91311034 T ES 91311034T ES 2091883 T3 ES2091883 T3 ES 2091883T3
Authority
ES
Spain
Prior art keywords
negatives
loading
electrophotographic toner
assistant
anion
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
ES91311034T
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 ES2091883T3 publication Critical patent/ES2091883T3/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 CARGA DE NEGATIVOS QUE CONSTA DE UN COMPUESTO METALICO DE UN ACIDO HIDROCARBOXILICO AROMATICO COMO AGENTE DE CONTROL DE CARGA PARA LA CARGA DE NEGATIVOS Y UNA SAL DE AMONIACO CUATERNARIA QUE TIENE UN ANION OXIACIDO COMO ASISTENTE DE CONTROL DE CARGA, UNA RESINA DE FIJACION Y UN COLORANTE. LA SAL DE AMONIACO CUATERNARIA UTILIZADA COMO ASISTENTE ES IMCOPATIBLE 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 IMPIDE CON EFICACIA LA FORMACION DE PARTICULAS DE TONER ALTAMENTE CARGADAS QUE NO CONTRIBUYEN AL DESARROLLO Y DE LAS PARTICULAS DE TONER POBREMENTE CARGADAS QUE SE EXTIENDEN CON FACILIDAD.AN ELECTROPHOTOGRAPHIC TONER FOR LOADING NEGATIVES THAT CONSISTS OF A METALLIC COMPOUND OF AROMATIC HYDROCARBOXYLIC ACID AS A LOAD CONTROL AGENT FOR THE LOADING OF NEGATIVES AND A QUALITY CONTROL ASSISTANT ANION OXIACID ANION FIXATION AND A DYE. THE QUATERNARY AMMONIA SALT USED AS AN ASSISTANT IS IMCOPATIBLE WITH THE FIXING RESIN BUT DISPERSIBLE THEREIN. TONER PROVIDES A SHARP DISTRIBUTION OF THE AMOUNT OF LOAD IN A WAY SO EFFECTIVELY PREVENTED FROM FORMING HIGHLY LOADED TONER PARTICLES THAT DO NOT CONTRIBUTE TO DEVELOPMENT AND POORLY LOADED TONER PARTICLES.

ES91311034T 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. Expired - Lifetime ES2091883T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2328362A JP2609357B2 (en) 1990-11-28 1990-11-28 Electrophotographic toner for negative charging

Publications (1)

Publication Number Publication Date
ES2091883T3 true ES2091883T3 (en) 1996-11-16

Family

ID=18209402

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91311034T Expired - Lifetime ES2091883T3 (en) 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Country Status (4)

Country Link
EP (1) EP0488743B1 (en)
JP (1) JP2609357B2 (en)
DE (1) DE69121067T2 (en)
ES (1) ES2091883T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700617A (en) * 1995-10-12 1997-12-23 Canon Kabushiki Kaisha Toner for developing electrostatic images and charge-controlling agent
DE10221663A1 (en) 2001-05-16 2002-12-12 Kao Corp High stability toner especially for high-speed two-component development comprises resin binder, mixed metal oxide black pigment and quaternary ammonium salt charge generator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
JP2609357B2 (en) 1997-05-14
JPH04195165A (en) 1992-07-15
EP0488743B1 (en) 1996-07-24
DE69121067D1 (en) 1996-08-29
DE69121067T2 (en) 1996-12-19
EP0488743A1 (en) 1992-06-03

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