JPS57189145A - Production of toner - Google Patents

Production of toner

Info

Publication number
JPS57189145A
JPS57189145A JP56074199A JP7419981A JPS57189145A JP S57189145 A JPS57189145 A JP S57189145A JP 56074199 A JP56074199 A JP 56074199A JP 7419981 A JP7419981 A JP 7419981A JP S57189145 A JPS57189145 A JP S57189145A
Authority
JP
Japan
Prior art keywords
toner
magnetic
images
electric field
same
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
JP56074199A
Other languages
Japanese (ja)
Inventor
Makoto Mentani
Hiroyuki Hoshino
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56074199A priority Critical patent/JPS57189145A/en
Publication of JPS57189145A publication Critical patent/JPS57189145A/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
    • G03G9/0802—Preparation methods
    • G03G9/081—Preparation methods by mixing the toner components in a liquefied state; melt kneading; reactive mixing
    • 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
    • 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
    • G03G9/0815—Post-treatment

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a toner which makes printing free from blank centers and the use of plain paper possible by solidifying an insulation characteristic resin mixed and dissolved with fine conductive particle and a magnetic material and solidifying and grinding the same while keeping said resin applied with an electric field and a magnetic field in the same direction. CONSTITUTION:A magnetic field and an electric field of the same direction are applied to a toner material 6 in a heated and molten state by an electromagnet 1 and a voltage applyig circuit 5. The fine conductive particles 8 and magntic material 9 in the toner material 6 align straightforward. After the toner is slowly cooled and solidified, it is ground, whereby anisotropic toner particles 10 are obtained. In the stage of developing by using the toner 11 consisting of such toner particles 10, the toner 11 is conveyed onto electrostatic latent images 15 by the magnetic force of a magnetic roll 12. Since the direction of the conductivity of the toner 11 and the direction of magnetic dipoles are the same, electric current flows in the toner chains formed by the magnetic field, and electrostatic charge is induced in the toner 11 by the electric field by the images 15. By the effect of this electrostatic charge, the toner 11 is stuck on the images 15, whereby the images are developed.
JP56074199A 1981-05-19 1981-05-19 Production of toner Pending JPS57189145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074199A JPS57189145A (en) 1981-05-19 1981-05-19 Production of toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074199A JPS57189145A (en) 1981-05-19 1981-05-19 Production of toner

Publications (1)

Publication Number Publication Date
JPS57189145A true JPS57189145A (en) 1982-11-20

Family

ID=13540270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074199A Pending JPS57189145A (en) 1981-05-19 1981-05-19 Production of toner

Country Status (1)

Country Link
JP (1) JPS57189145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599294A (en) * 1982-04-06 1986-07-08 Canon Kabushiki Kaisha Particles obtained by atomization while applying voltage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599294A (en) * 1982-04-06 1986-07-08 Canon Kabushiki Kaisha Particles obtained by atomization while applying voltage

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