JPS565560A - Magnetic toner - Google Patents

Magnetic toner

Info

Publication number
JPS565560A
JPS565560A JP8102179A JP8102179A JPS565560A JP S565560 A JPS565560 A JP S565560A JP 8102179 A JP8102179 A JP 8102179A JP 8102179 A JP8102179 A JP 8102179A JP S565560 A JPS565560 A JP S565560A
Authority
JP
Japan
Prior art keywords
magnetic
toners
binder
resin
open
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
JP8102179A
Other languages
Japanese (ja)
Inventor
Masumi Asanae
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP8102179A priority Critical patent/JPS565560A/en
Publication of JPS565560A publication Critical patent/JPS565560A/en
Pending legal-status Critical Current

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  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To develop and transfer magnetic latent images then open-fixing the same and obtain good images by specifying the thermal characteristics of the resin of the binder constituting the toners and the kind and compounding amount of magnetic powder.
CONSTITUTION: Synthetic or natural resin such as epoxy resin of glass transition point ≥50°C and softening point ≥80°C is selectively used for the binder forming the magnetic toners, depending upon purposes. The mixture composed of 50W 20wt% binder and 50W80% magnetic powder such as Fe3O4 having magnetic characteristics of ≤200 Oe in coercive force is kneaded and ground, thence those of averge 10W25μ in grain size are classified. This yields the open-fixing magnetic toners having proper resistance value.
COPYRIGHT: (C)1981,JPO&Japio
JP8102179A 1979-06-27 1979-06-27 Magnetic toner Pending JPS565560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8102179A JPS565560A (en) 1979-06-27 1979-06-27 Magnetic toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8102179A JPS565560A (en) 1979-06-27 1979-06-27 Magnetic toner

Publications (1)

Publication Number Publication Date
JPS565560A true JPS565560A (en) 1981-01-21

Family

ID=13734822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8102179A Pending JPS565560A (en) 1979-06-27 1979-06-27 Magnetic toner

Country Status (1)

Country Link
JP (1) JPS565560A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200258A (en) * 1983-04-13 1984-11-13 アグフア・ゲヴエルト・ナ−ムロゼ・ベンノ−ト　チヤツプ Toner composition used for development of static charge pattern
JPS63106665A (en) * 1986-10-23 1988-05-11 Hitachi Metals Ltd Toner for magnetic image printing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5196330A (en) * 1975-02-21 1976-08-24
JPS53118057A (en) * 1977-03-25 1978-10-16 Hitachi Metals Ltd Magnetic toner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5196330A (en) * 1975-02-21 1976-08-24
JPS53118057A (en) * 1977-03-25 1978-10-16 Hitachi Metals Ltd Magnetic toner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200258A (en) * 1983-04-13 1984-11-13 アグフア・ゲヴエルト・ナ−ムロゼ・ベンノ−ト　チヤツプ Toner composition used for development of static charge pattern
JPS63106665A (en) * 1986-10-23 1988-05-11 Hitachi Metals Ltd Toner for magnetic image printing

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