JPS56116044A - Toner for electrostatic image development and its production - Google Patents

Toner for electrostatic image development and its production

Info

Publication number
JPS56116044A
JPS56116044A JP923481A JP923481A JPS56116044A JP S56116044 A JPS56116044 A JP S56116044A JP 923481 A JP923481 A JP 923481A JP 923481 A JP923481 A JP 923481A JP S56116044 A JPS56116044 A JP S56116044A
Authority
JP
Japan
Prior art keywords
polymer
toner
carbon black
20pts
production
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
JP923481A
Other languages
Japanese (ja)
Inventor
Kiyoshi Tamaki
Tsuneo Wada
Sadaji Terada
Hidenori Murata
Hiroyuki Takagiwa
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 JP923481A priority Critical patent/JPS56116044A/en
Publication of JPS56116044A publication Critical patent/JPS56116044A/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
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706—Polymers of alkenyl-aromatic compounds
    • 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds
    • G03G9/0904—Carbon black

Landscapes

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

Abstract

PURPOSE:To produce a titled toner of superior developability, transferability, fixability and storage stability by containing the polymer obtained by polymerizing a monomer in the presence of grafted carbon black. CONSTITUTION:A polymer of 100pts.wt. such as styrene or ethylene and 0.5- 20pts.wt. grafted carbon black of <=10% rate of polymerization are polymerized at 40-90 deg.C in water in the presence of a polymerization initiator and a dispersant, whereby the polymer of 50,000-1,000,000mol.wt., 100-170 deg.C softening points and 40-110 deg.C glass transition points is obtained. Thence, 1-20pts.wt. a low mol.wt. olefin polymer of 1,000-45,000 weight-average mol.wt. and 100-180 deg.C softening points, 50-300pts.wt. magnetic material such as magnetite or Co and 3-20wt% blackening pigment such as carbon black are compounded and the mixture is so ground as to have 1-50mu grain sizes, whereby the toner for electrostatic charge development is obtained.
JP923481A 1981-01-23 1981-01-23 Toner for electrostatic image development and its production Pending JPS56116044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP923481A JPS56116044A (en) 1981-01-23 1981-01-23 Toner for electrostatic image development and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP923481A JPS56116044A (en) 1981-01-23 1981-01-23 Toner for electrostatic image development and its production

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP55009626 Division 1980-01-29 1980-01-29

Publications (1)

Publication Number Publication Date
JPS56116044A true JPS56116044A (en) 1981-09-11

Family

ID=11714707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP923481A Pending JPS56116044A (en) 1981-01-23 1981-01-23 Toner for electrostatic image development and its production

Country Status (1)

Country Link
JP (1) JPS56116044A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62297855A (en) * 1986-06-18 1987-12-25 Hitachi Chem Co Ltd Production of toner for electrophotography
JPS63313168A (en) * 1987-06-16 1988-12-21 Mita Ind Co Ltd Electrostatic charge image developing toner and preparation of same
JPH01156760A (en) * 1987-12-15 1989-06-20 Nippon Shokubai Kagaku Kogyo Co Ltd Electrostatic charge image developing toner
US4960669A (en) * 1987-12-08 1990-10-02 Canon Kabushiki Kaisha Process for producing toner by generating non-soluble cationic inorganic particles in dispersant medium
JPH02275964A (en) * 1988-12-29 1990-11-09 Canon Inc Toner formed by suspension polymerization method and production thereof
JPH0315859A (en) * 1989-06-14 1991-01-24 Tomoegawa Paper Co Ltd Production of polymerized toner
EP0430706A2 (en) * 1989-11-30 1991-06-05 Mita Industrial Co., Ltd. Toner for developing electrostatic images and a method of manufacturing the same
US6030737A (en) * 1996-11-11 2000-02-29 Canon Kabushiki Kaisha Non-magnetic toner for developing electrostatic image, process for producing non-magnetic toner particles, and image forming method
US6187495B1 (en) 1998-08-31 2001-02-13 Canon Kabushiki Kaisha Yellow toner, process for producing the tower and image forming method using the toner
US6316157B1 (en) 1999-07-05 2001-11-13 Canon Kabushiki Kaisha Toner and image forming method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62297855A (en) * 1986-06-18 1987-12-25 Hitachi Chem Co Ltd Production of toner for electrophotography
JPS63313168A (en) * 1987-06-16 1988-12-21 Mita Ind Co Ltd Electrostatic charge image developing toner and preparation of same
US4960669A (en) * 1987-12-08 1990-10-02 Canon Kabushiki Kaisha Process for producing toner by generating non-soluble cationic inorganic particles in dispersant medium
JPH01156760A (en) * 1987-12-15 1989-06-20 Nippon Shokubai Kagaku Kogyo Co Ltd Electrostatic charge image developing toner
JPH0238947B2 (en) * 1987-12-15 1990-09-03 Nippon Shokubai Kagaku Kogyo Kk
JPH02275964A (en) * 1988-12-29 1990-11-09 Canon Inc Toner formed by suspension polymerization method and production thereof
JPH0315859A (en) * 1989-06-14 1991-01-24 Tomoegawa Paper Co Ltd Production of polymerized toner
EP0430706A2 (en) * 1989-11-30 1991-06-05 Mita Industrial Co., Ltd. Toner for developing electrostatic images and a method of manufacturing the same
US6030737A (en) * 1996-11-11 2000-02-29 Canon Kabushiki Kaisha Non-magnetic toner for developing electrostatic image, process for producing non-magnetic toner particles, and image forming method
US6187495B1 (en) 1998-08-31 2001-02-13 Canon Kabushiki Kaisha Yellow toner, process for producing the tower and image forming method using the toner
US6316157B1 (en) 1999-07-05 2001-11-13 Canon Kabushiki Kaisha Toner and image forming method

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