JPS5779952A - Developer - Google Patents

Developer

Info

Publication number
JPS5779952A
JPS5779952A JP55156323A JP15632380A JPS5779952A JP S5779952 A JPS5779952 A JP S5779952A JP 55156323 A JP55156323 A JP 55156323A JP 15632380 A JP15632380 A JP 15632380A JP S5779952 A JPS5779952 A JP S5779952A
Authority
JP
Japan
Prior art keywords
toner
fine powder
silicate
aziridines
ethyleneimine
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
JP55156323A
Other languages
Japanese (ja)
Inventor
Masanori Takenouchi
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP55156323A priority Critical patent/JPS5779952A/en
Publication of JPS5779952A publication Critical patent/JPS5779952A/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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G03G9/09716—Inorganic compounds treated with organic compounds

Landscapes

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

Abstract

PURPOSE:To obtain a toner which is stable in positive chargeability, is free from toner scattering and cohesion, and has high transfer efficiency at high humidity by adding the fine powder of silicate treated with aziridines (ethyleneimine, etc.) to a developer (toner). CONSTITUTION:Treated silicate is prepd. by dispersing fine powder of silica and silicate in water, adding aziridines such as ethyleneimine, styreneimine, and polyimines of <=10 degrees of polymn. of these imines thereto and maturing the same at room temp. for about 12hr at about 9.5pH after stirring, then filtering and rinsing the mixture followed by drying and pulverizing. This fine powder is kneaded together with toner raw materials, are mixed, whereby the toner stuck with the fine powder on the toner surfaces is obtained. The resultant toner is stable in quantity of charging by friction with carriers, sleeves, etc., provides images of good resolving power.
JP55156323A 1980-11-06 1980-11-06 Developer Pending JPS5779952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55156323A JPS5779952A (en) 1980-11-06 1980-11-06 Developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55156323A JPS5779952A (en) 1980-11-06 1980-11-06 Developer

Publications (1)

Publication Number Publication Date
JPS5779952A true JPS5779952A (en) 1982-05-19

Family

ID=15625274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55156323A Pending JPS5779952A (en) 1980-11-06 1980-11-06 Developer

Country Status (1)

Country Link
JP (1) JPS5779952A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734350A (en) * 1986-12-29 1988-03-29 Xerox Corporation Positively charged developer compositions with modified charge enhancing additives containing amino alcohols
US4965158A (en) * 1986-08-01 1990-10-23 Xerox Corporation Toner compositions with modified charge enhancing additives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965158A (en) * 1986-08-01 1990-10-23 Xerox Corporation Toner compositions with modified charge enhancing additives
US4734350A (en) * 1986-12-29 1988-03-29 Xerox Corporation Positively charged developer compositions with modified charge enhancing additives containing amino alcohols

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