ES2091884T3 - ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. - Google Patents

ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Info

Publication number
ES2091884T3
ES2091884T3 ES91311035T ES91311035T ES2091884T3 ES 2091884 T3 ES2091884 T3 ES 2091884T3 ES 91311035 T ES91311035 T ES 91311035T ES 91311035 T ES91311035 T ES 91311035T ES 2091884 T3 ES2091884 T3 ES 2091884T3
Authority
ES
Spain
Prior art keywords
negatives
loading
electrophotographic toner
toner
fixing resin
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
ES91311035T
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 ES2091884T3 publication Critical patent/ES2091884T3/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
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08726—Polymers of unsaturated acids or derivatives thereof
    • 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

Landscapes

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

Abstract

UN TONER ELECTROFOTOGRAFICO PARA CARGA DE NEGATIVOS QUE CONSTA DE UN COPOLIMERO ACRILAMIDA QUE CONTIENE GRUPOS DE ACIDO SULFONICOS 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 LA CARGA, UNA RESINA DE FIJACION 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 QUE SE IMPIDA EFICAZMENTE 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, WHICH CONSISTS OF A COPOLYMER ACRYLAMIDE CONTAINING GROUPS OF SULPHONIC ACID AS A LOAD CONTROL AGENT FOR THE LOADING OF NEGATIVES AND A QUATERNARY CONTROLLED AMONIUM SALT, AS AN ANXYXIC ANION AS A FIXING RESIN AND 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 IN A WAY THAT IS EFFECTIVELY PREVENTED FROM FORMING HIGHLY LOADED TONER PARTICLES THAT DO NOT CONTRIBUTE TO DEVELOPMENT AND POORLY LOADED TONER PARTICLES.

ES91311035T 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. Expired - Lifetime ES2091884T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2328363A JP2609358B2 (en) 1990-11-28 1990-11-28 Electrophotographic toner for negative charging

Publications (1)

Publication Number Publication Date
ES2091884T3 true ES2091884T3 (en) 1996-11-16

Family

ID=18209412

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91311035T Expired - Lifetime ES2091884T3 (en) 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Country Status (4)

Country Link
EP (1) EP0488744B1 (en)
JP (1) JP2609358B2 (en)
DE (1) DE69120908T2 (en)
ES (1) ES2091884T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999052019A1 (en) * 1998-03-31 1999-10-14 Nippon Zeon Co., Ltd. Toner for development of electrostatic charge image and method for producing the same
JP2000347445A (en) 1999-03-26 2000-12-15 Nippon Zeon Co Ltd Electrostatic charge image developing toner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3650588T2 (en) * 1985-05-30 1997-06-05 Mita Industrial Co Ltd Electrophotographic toner
JPH0812467B2 (en) * 1987-01-28 1996-02-07 藤倉化成株式会社 Negative charging toner for electrophotography
DE3874176T2 (en) * 1987-03-25 1993-04-08 Hodogaya Chemical Co Ltd QUATERNAUS AMMONIUM SALT AND ELECTROPHOTOGRAPHIC TONER.
JP2567018B2 (en) * 1988-02-26 1996-12-25 三田工業株式会社 Method for producing toner for developing electrostatic image
JP2623684B2 (en) * 1988-05-12 1997-06-25 ミノルタ株式会社 toner
JP2710342B2 (en) * 1988-07-11 1998-02-10 株式会社リコー Toner for developing electrostatic images
JPH03171147A (en) * 1989-11-30 1991-07-24 Mita Ind Co Ltd Toner for developing electrostatic charge image

Also Published As

Publication number Publication date
DE69120908T2 (en) 1996-11-28
EP0488744A1 (en) 1992-06-03
DE69120908D1 (en) 1996-08-22
EP0488744B1 (en) 1996-07-17
JP2609358B2 (en) 1997-05-14
JPH04195166A (en) 1992-07-15

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