JPS57165849A - Electrophotographic toner - Google Patents

Electrophotographic toner

Info

Publication number
JPS57165849A
JPS57165849A JP56051236A JP5123681A JPS57165849A JP S57165849 A JPS57165849 A JP S57165849A JP 56051236 A JP56051236 A JP 56051236A JP 5123681 A JP5123681 A JP 5123681A JP S57165849 A JPS57165849 A JP S57165849A
Authority
JP
Japan
Prior art keywords
resin
styrene
toner
polyamide
binder
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
JP56051236A
Other languages
Japanese (ja)
Inventor
Satoru Inoue
Mitsuru Uchida
Kimitoshi Yamaguchi
Mitsuo Aoki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56051236A priority Critical patent/JPS57165849A/en
Publication of JPS57165849A publication Critical patent/JPS57165849A/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
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08766—Polyamides, e.g. polyesteramides

Abstract

PURPOSE:To reduce the lower limit fixing temperature without degrading the offset resistance of a toner, by using a high molecular weight styrene resin together with a polyamide resin as a toner resin component. CONSTITUTION:A resin used for a binder consists of 99.5-80wt% styrene type resin having >=150,000wt average mol.wt. and 0.5-10wt% polyamide,, and carbon black or the like colorant is kneaded with the binder, and pulverized to give 5-20mum sized toner particles. As the styrene type resin, a styrene homopolymer or a copolymer of styrene with another vinyl monomer is used. The polyamide resin used is produced by condensation of a diamine and a dibasic acid, and has 80-150 deg.C melting point. As another resin component of the toner, an epoxy resin or the like may be used by mixing said polymide and styrene resins.
JP56051236A 1981-04-07 1981-04-07 Electrophotographic toner Pending JPS57165849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56051236A JPS57165849A (en) 1981-04-07 1981-04-07 Electrophotographic toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56051236A JPS57165849A (en) 1981-04-07 1981-04-07 Electrophotographic toner

Publications (1)

Publication Number Publication Date
JPS57165849A true JPS57165849A (en) 1982-10-13

Family

ID=12881307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56051236A Pending JPS57165849A (en) 1981-04-07 1981-04-07 Electrophotographic toner

Country Status (1)

Country Link
JP (1) JPS57165849A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60136753A (en) * 1983-12-26 1985-07-20 Hitachi Ltd Positively charge type heat roll fixable toner
US7800362B1 (en) 2006-01-19 2010-09-21 Xiroku, Inc. Pressure distribution detector utilizing electromagnetic coupling
US8013598B2 (en) 2006-06-19 2011-09-06 Newcom, Inc. Object detecting device for detecting object using electromagnetic induction
US8563880B2 (en) 2006-10-24 2013-10-22 Newcom, Inc. Operating tool with conductor pieces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60136753A (en) * 1983-12-26 1985-07-20 Hitachi Ltd Positively charge type heat roll fixable toner
JPH0259985B2 (en) * 1983-12-26 1990-12-14 Hitachi Seisakusho Kk
US7800362B1 (en) 2006-01-19 2010-09-21 Xiroku, Inc. Pressure distribution detector utilizing electromagnetic coupling
US8013598B2 (en) 2006-06-19 2011-09-06 Newcom, Inc. Object detecting device for detecting object using electromagnetic induction
US8563880B2 (en) 2006-10-24 2013-10-22 Newcom, Inc. Operating tool with conductor pieces

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