JPS57181553A - Toner for developing electrostatic charge image and its manufacture - Google Patents

Toner for developing electrostatic charge image and its manufacture

Info

Publication number
JPS57181553A
JPS57181553A JP56063968A JP6396881A JPS57181553A JP S57181553 A JPS57181553 A JP S57181553A JP 56063968 A JP56063968 A JP 56063968A JP 6396881 A JP6396881 A JP 6396881A JP S57181553 A JPS57181553 A JP S57181553A
Authority
JP
Japan
Prior art keywords
toner
dispersed
carbon black
polymerizing
manufacture
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
JP56063968A
Other languages
Japanese (ja)
Other versions
JPH033217B2 (en
Inventor
Akitoshi Matsubara
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 JP56063968A priority Critical patent/JPS57181553A/en
Publication of JPS57181553A publication Critical patent/JPS57181553A/en
Publication of JPH033217B2 publication Critical patent/JPH033217B2/ja
Granted 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
    • G03G9/0802—Preparation methods
    • G03G9/0804—Preparation methods whereby the components are brought together in a liquid dispersing medium
    • G03G9/0806—Preparation methods whereby the components are brought together in a liquid dispersing medium whereby chemical synthesis of at least one of the toner components takes place
    • 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
    • G03G9/08737—Polymers derived from conjugated dienes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE:To manufacture a toner having a high blackening degree and giving a visible image with sufficiently high image density by polymerizing a monomer contg. dispersed specified carbon black. CONSTITUTION:To 100pts.wt. polymerizing monomer such as styrene are added 3-30pts.wt. carbon black with 70-280ml/100g DBP oil absorption and >=6.0pH, 1-20pts.wt. off-setting inhibitor such as ethylenepropylene copolymer with 100- 180 deg.C softening point and 5-95pts.wt. prepolymer with >=1,000mol.wt. such as poly-1,2-butadiene, and by applying high shearing force, the carbon black is dispersed to prepare a polymerizing composition. This composition is dispersed in an aqueous dispersant in the presence of a suspension stabilizer to regulate the grain size to desired value, and it is polymerized in the presence of a polymn. initiator. Thus, a toner for developing an electrostatic charge image is obtd. This toner gives a clear copied image free from fog.
JP56063968A 1981-04-30 1981-04-30 Toner for developing electrostatic charge image and its manufacture Granted JPS57181553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56063968A JPS57181553A (en) 1981-04-30 1981-04-30 Toner for developing electrostatic charge image and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56063968A JPS57181553A (en) 1981-04-30 1981-04-30 Toner for developing electrostatic charge image and its manufacture

Publications (2)

Publication Number Publication Date
JPS57181553A true JPS57181553A (en) 1982-11-09
JPH033217B2 JPH033217B2 (en) 1991-01-18

Family

ID=13244596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56063968A Granted JPS57181553A (en) 1981-04-30 1981-04-30 Toner for developing electrostatic charge image and its manufacture

Country Status (1)

Country Link
JP (1) JPS57181553A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63210849A (en) * 1987-02-27 1988-09-01 Mita Ind Co Ltd Electrostatic charge image developing toner and its manufacture
JPH01145664A (en) * 1987-12-02 1989-06-07 Mitsubishi Kasei Corp Manufacture of positively chargeable toner
JPH021874A (en) * 1988-06-10 1990-01-08 Sharp Corp Electrophotographic toner
JPH0470761A (en) * 1990-07-12 1992-03-05 Tomoegawa Paper Co Ltd Electrophotographic dry binary developer
JPH04118666A (en) * 1990-09-10 1992-04-20 Mita Ind Co Ltd Two-component developer
EP0651292A1 (en) * 1993-10-20 1995-05-03 Canon Kabushiki Kaisha Toner for developing electrostatic images, and process for its production
WO1999012078A1 (en) * 1997-08-29 1999-03-11 Nippon Zeon Co., Ltd. Toner for electrostatic image development and process for producing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333151A (en) * 1976-09-08 1978-03-28 Mitsubishi Chem Ind Toner composition
JPS5880404A (en) * 1981-11-05 1983-05-14 株式会社東芝 Method of controlling water level of deaerator and flow rate of condensation of inlet of deaerator
JPS5913731A (en) * 1982-07-07 1984-01-24 ザ・リージエンツ・オブ・ザ・ユニバーシテイ・オブ・カリフオルニア Birth control using gestogenic hormone releasing factor agonist
JPS6410826A (en) * 1987-07-02 1989-01-13 Chubu Tsushin Kensetsu Kk Method and tool for burying underground tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333151A (en) * 1976-09-08 1978-03-28 Mitsubishi Chem Ind Toner composition
JPS5880404A (en) * 1981-11-05 1983-05-14 株式会社東芝 Method of controlling water level of deaerator and flow rate of condensation of inlet of deaerator
JPS5913731A (en) * 1982-07-07 1984-01-24 ザ・リージエンツ・オブ・ザ・ユニバーシテイ・オブ・カリフオルニア Birth control using gestogenic hormone releasing factor agonist
JPS6410826A (en) * 1987-07-02 1989-01-13 Chubu Tsushin Kensetsu Kk Method and tool for burying underground tube

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63210849A (en) * 1987-02-27 1988-09-01 Mita Ind Co Ltd Electrostatic charge image developing toner and its manufacture
JPH01145664A (en) * 1987-12-02 1989-06-07 Mitsubishi Kasei Corp Manufacture of positively chargeable toner
JPH021874A (en) * 1988-06-10 1990-01-08 Sharp Corp Electrophotographic toner
JPH0470761A (en) * 1990-07-12 1992-03-05 Tomoegawa Paper Co Ltd Electrophotographic dry binary developer
JPH04118666A (en) * 1990-09-10 1992-04-20 Mita Ind Co Ltd Two-component developer
EP0651292A1 (en) * 1993-10-20 1995-05-03 Canon Kabushiki Kaisha Toner for developing electrostatic images, and process for its production
WO1999012078A1 (en) * 1997-08-29 1999-03-11 Nippon Zeon Co., Ltd. Toner for electrostatic image development and process for producing the same
US6440628B1 (en) 1997-08-29 2002-08-27 Nippon Zeon Co., Ltd. Tones for development of electrostatic image and production process thereof

Also Published As

Publication number Publication date
JPH033217B2 (en) 1991-01-18

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