JPS56116042A - Toner for electrostatic image development and its production - Google Patents

Toner for electrostatic image development and its production

Info

Publication number
JPS56116042A
JPS56116042A JP1890980A JP1890980A JPS56116042A JP S56116042 A JPS56116042 A JP S56116042A JP 1890980 A JP1890980 A JP 1890980A JP 1890980 A JP1890980 A JP 1890980A JP S56116042 A JPS56116042 A JP S56116042A
Authority
JP
Japan
Prior art keywords
toner
prepolymer
monomer
produce
polymer
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.)
Pending
Application number
JP1890980A
Other languages
Japanese (ja)
Inventor
Kiyoshi Tamaki
Hidenori Murata
Sadaji Terada
Hiroyuki Takagiwa
Tsuneo Wada
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP1890980A priority Critical patent/JPS56116042A/en
Priority to DE19813105985 priority patent/DE3105985A1/en
Publication of JPS56116042A publication Critical patent/JPS56116042A/en
Pending 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
    • G03G9/087—Binders for toner particles
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08786—Graft polymers
    • 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
    • G03G9/08704—Polyalkenes
    • 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

Landscapes

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

Abstract

PURPOSE: To produce the titled toner which has a sufficient degree of blackening and does not produce any photographic fog by containing the polymer obtained by polymerizing a prepolymer of a monomer and reactive polyester.
CONSTITUTION: 100pts.wt. a monomer such as styrene or ethylene, 10W50pts.wt. reactive polyester of ≥1,000 weight-average mol.wt. having reactive groups in the main or side chains and a coloring agent such as carbon black or magnetic material are prepolymerized in a manner that the rate of polymerization assumes ≤10%, whereby the prepolymer is obtained. Next, this prepolymer is suspension- polymerized in the presence of a polymerization initiator and a diffusion stabilizer, whereby the toner for electrostatic charge development consisting of the polymer of 50,000W1,000,000mol.wt. and 100W170°C softening points is obtained. Thereby, the toner of superior developability, transferability, and fixability is obtained, and in the case of multiple sheets of continuous copies using such a toner, no charging deterioration occurs and the sharp images are obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP1890980A 1980-02-18 1980-02-18 Toner for electrostatic image development and its production Pending JPS56116042A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1890980A JPS56116042A (en) 1980-02-18 1980-02-18 Toner for electrostatic image development and its production
DE19813105985 DE3105985A1 (en) 1980-02-18 1981-02-18 Toner for electrophotography, and process for the preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1890980A JPS56116042A (en) 1980-02-18 1980-02-18 Toner for electrostatic image development and its production

Publications (1)

Publication Number Publication Date
JPS56116042A true JPS56116042A (en) 1981-09-11

Family

ID=11984721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1890980A Pending JPS56116042A (en) 1980-02-18 1980-02-18 Toner for electrostatic image development and its production

Country Status (2)

Country Link
JP (1) JPS56116042A (en)
DE (1) DE3105985A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760339A (en) * 1980-09-30 1982-04-12 Dainippon Ink & Chem Inc Toner composition for electrophotography
JPS57171345A (en) * 1981-04-15 1982-10-21 Kao Corp Electrophotographic dry type developer
JPS6183547A (en) * 1984-10-01 1986-04-28 Canon Inc Electrophotographic developer
US5529873A (en) * 1993-04-20 1996-06-25 Canon Kabushiki Kaisha Toner for developing electrostatic images and process for producing toner
US8309290B2 (en) 2006-09-15 2012-11-13 Ricoh Company, Ltd. Toner and method of manufacturing the same
JP2017107115A (en) * 2015-12-11 2017-06-15 花王株式会社 Manufacturing method of electrophotographic toner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3373226D1 (en) * 1982-06-17 1987-10-01 Oce Nederland Bv A toner powder and a method of forming fixed images by means of this toner powder
JPH0785179B2 (en) * 1986-07-22 1995-09-13 コニカ株式会社 Toner for electrostatic image development
US4878110A (en) * 1986-08-15 1989-10-31 Konishiroku Photo Industry Co., Ltd. Color image processing apparatus which accurately registers multiple color images by counting pulses from a timer reset by a drum index signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590000A (en) * 1967-06-05 1971-06-29 Xerox Corp Solid developer for latent electrostatic images
JPS5323204B2 (en) * 1973-12-29 1978-07-13

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760339A (en) * 1980-09-30 1982-04-12 Dainippon Ink & Chem Inc Toner composition for electrophotography
JPH0113098B2 (en) * 1980-09-30 1989-03-03 Dainippon Ink & Chemicals
JPS57171345A (en) * 1981-04-15 1982-10-21 Kao Corp Electrophotographic dry type developer
JPS6348336B2 (en) * 1981-04-15 1988-09-28 Kao Soap Co
JPS6183547A (en) * 1984-10-01 1986-04-28 Canon Inc Electrophotographic developer
US5529873A (en) * 1993-04-20 1996-06-25 Canon Kabushiki Kaisha Toner for developing electrostatic images and process for producing toner
US8309290B2 (en) 2006-09-15 2012-11-13 Ricoh Company, Ltd. Toner and method of manufacturing the same
JP2017107115A (en) * 2015-12-11 2017-06-15 花王株式会社 Manufacturing method of electrophotographic toner

Also Published As

Publication number Publication date
DE3105985A1 (en) 1981-12-17

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