JPS5526501A - Carrier for powder developing - Google Patents

Carrier for powder developing

Info

Publication number
JPS5526501A
JPS5526501A JP9311078A JP9311078A JPS5526501A JP S5526501 A JPS5526501 A JP S5526501A JP 9311078 A JP9311078 A JP 9311078A JP 9311078 A JP9311078 A JP 9311078A JP S5526501 A JPS5526501 A JP S5526501A
Authority
JP
Japan
Prior art keywords
powder
coating resin
carrier
ferromagnetic powder
polybutadiene
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.)
Granted
Application number
JP9311078A
Other languages
Japanese (ja)
Other versions
JPS6249620B2 (en
Inventor
Toshiaki Narisawa
Seiji Okada
Kiyohide Muramatsu
Teruo Yagishita
Hirofumi Okuyama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9311078A priority Critical patent/JPS5526501A/en
Priority to DE2931087A priority patent/DE2931087C2/en
Publication of JPS5526501A publication Critical patent/JPS5526501A/en
Priority to US06/232,805 priority patent/US4455361A/en
Priority to US06/320,609 priority patent/US4513075A/en
Priority to US06/501,800 priority patent/US4522909A/en
Publication of JPS6249620B2 publication Critical patent/JPS6249620B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To produce the carrier for powder development which does not cause fusion with toner during use and is long in life by covering the surfaces of ferromagnetic powder with the coating resin composed primarily of polybutadiene.
CONSTITUTION: Ferromagnetic powder (e.g., iron powder) of about 30 to 500μ in particle size is coated to about thicknesses 0.3 to 20μ by the coating resin in which polybutadiene content is above 90%. The coating operations involve dissolving the abovementioned coating resin in a solvent (e.g., trichloroethylene), dipping ferromagnetic powder in the solution thus prepared then heating the powder to about 100 to 180°C to cause crosslinking of the coating resin, thereby forming the firm film.
COPYRIGHT: (C)1980,JPO&Japio
JP9311078A 1978-08-01 1978-08-01 Carrier for powder developing Granted JPS5526501A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9311078A JPS5526501A (en) 1978-08-01 1978-08-01 Carrier for powder developing
DE2931087A DE2931087C2 (en) 1978-08-01 1979-07-31 Electrostatographic developer material
US06/232,805 US4455361A (en) 1978-08-01 1981-02-09 Process for preparing developer materials for electrostatic images
US06/320,609 US4513075A (en) 1978-08-01 1981-11-12 Developer materials for electrostatic images
US06/501,800 US4522909A (en) 1978-08-01 1983-06-07 Process for preparing electrostatic developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9311078A JPS5526501A (en) 1978-08-01 1978-08-01 Carrier for powder developing

Publications (2)

Publication Number Publication Date
JPS5526501A true JPS5526501A (en) 1980-02-26
JPS6249620B2 JPS6249620B2 (en) 1987-10-20

Family

ID=14073376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9311078A Granted JPS5526501A (en) 1978-08-01 1978-08-01 Carrier for powder developing

Country Status (1)

Country Link
JP (1) JPS5526501A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122043A (en) * 1980-02-29 1981-09-25 Canon Inc Covered carrier
JPS5770544A (en) * 1980-10-20 1982-05-01 Fujitsu Ltd Carrier particle for developer
JPS58113945A (en) * 1981-12-26 1983-07-07 Fujitsu Ltd Carrier for dry developer
JPS5957250A (en) * 1982-09-27 1984-04-02 Fujitsu Ltd Magnetic brush developer for laser printer
JPS59128557A (en) * 1983-01-14 1984-07-24 Fujitsu Ltd Powdered developer used for laser printer
JPS61123859A (en) * 1984-11-20 1986-06-11 Fujitsu Ltd Electrophotographic carrier
JP2014106358A (en) * 2012-11-27 2014-06-09 Fuji Xerox Co Ltd Carrier for electrostatic charge image development, electrostatic charge image developer, process cartridge, and image forming apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH021423U (en) * 1988-06-13 1990-01-08

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753308A (en) * 1952-12-22 1956-07-03 Haloid Co Xerography developer composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753308A (en) * 1952-12-22 1956-07-03 Haloid Co Xerography developer composition

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122043A (en) * 1980-02-29 1981-09-25 Canon Inc Covered carrier
JPS5770544A (en) * 1980-10-20 1982-05-01 Fujitsu Ltd Carrier particle for developer
JPS58113945A (en) * 1981-12-26 1983-07-07 Fujitsu Ltd Carrier for dry developer
JPS5957250A (en) * 1982-09-27 1984-04-02 Fujitsu Ltd Magnetic brush developer for laser printer
JPS6246856B2 (en) * 1982-09-27 1987-10-05 Fujitsu Ltd
JPS59128557A (en) * 1983-01-14 1984-07-24 Fujitsu Ltd Powdered developer used for laser printer
JPS6355060B2 (en) * 1983-01-14 1988-11-01 Fujitsu Ltd
JPS61123859A (en) * 1984-11-20 1986-06-11 Fujitsu Ltd Electrophotographic carrier
JP2014106358A (en) * 2012-11-27 2014-06-09 Fuji Xerox Co Ltd Carrier for electrostatic charge image development, electrostatic charge image developer, process cartridge, and image forming apparatus

Also Published As

Publication number Publication date
JPS6249620B2 (en) 1987-10-20

Similar Documents

Publication Publication Date Title
JPS5526501A (en) Carrier for powder developing
JPS5273929A (en) Resinous composition of powder coating
JPS5357815A (en) Silver halide photographic material
JPS5650337A (en) Resin coated carrier
JPS53129041A (en) Carrier for electrophotographic dry type developing agent
JPS5421729A (en) Electrophotographic carrier material
JPS5397435A (en) Carrier for electrophotographic dry type toner
JPS54121745A (en) Magnetic toner
JPS5528001A (en) Developer for electrophotography
JPS5283231A (en) Powder development carrier
JPS52134637A (en) Wet process for manufacturing thermosetting coating powder
JPS52135735A (en) Preparation of microfilm capable of add-on
JPS5214641A (en) Method for coating
JPS53100242A (en) Resin coated carrier for electrophotographic dry type toner
JPS5211037A (en) Electrophotographic carrier manufacture method
JPS5415944A (en) Formation of heat-resistant film
JPS53116838A (en) Resin coated carrier for dry type toners for zerography
JPS5335741A (en) Primer for powder coating
JPS5356035A (en) Electrophotographic dry developer
JPS51123232A (en) A process for preparing powder coating compound
JPS53100243A (en) Resin coated carrier for electrophotographic dry type toner
JPS5281342A (en) Powder coating resin composition
JPS5425943A (en) Metallic finishing
JPS51111847A (en) A method for treating a coating film coated with an inorganic coating compound
JPS5415943A (en) Formation of heat-resistant film