JPS5655954A - Pressure sensitive fixing toner composition - Google Patents

Pressure sensitive fixing toner composition

Info

Publication number
JPS5655954A
JPS5655954A JP13199079A JP13199079A JPS5655954A JP S5655954 A JPS5655954 A JP S5655954A JP 13199079 A JP13199079 A JP 13199079A JP 13199079 A JP13199079 A JP 13199079A JP S5655954 A JPS5655954 A JP S5655954A
Authority
JP
Japan
Prior art keywords
fine particles
silica fine
hydrophilic silica
oily substance
hydrophobic oily
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
JP13199079A
Other languages
Japanese (ja)
Inventor
Hajime Machida
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 JP13199079A priority Critical patent/JPS5655954A/en
Publication of JPS5655954A publication Critical patent/JPS5655954A/en
Pending legal-status Critical Current

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  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To enable a toner to be fixed and transferred under a slight pressure without requiring large energy by enclosing the surface of a core substance based on a hydrophobic oily substance with hydrophilic silica fine particles.
CONSTITUTION: Hydrophobic oily substance 1 such as mineral oil, perfluoroalkyl ether having a 5W10C alkyl group, α-olefin oligomer, synthetic squalane, liq. polypropylene, hexene, silicone oil or vegetable oil and hydrophilic silica fine particles 3 of about 5W100mμ particle size are mixed in about 70:30W95:5wt. ratio with a mixing means such as a mixer. Thus, the titled toner composition is obtained in which the hydrophobic oily substance 1 is enclosed with hydrophilic silica fine particles 3. By covering the surface of said composition with fluororesin layer 4, the transferring and fixing effects can be further improved.
COPYRIGHT: (C)1981,JPO&Japio
JP13199079A 1979-10-13 1979-10-13 Pressure sensitive fixing toner composition Pending JPS5655954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13199079A JPS5655954A (en) 1979-10-13 1979-10-13 Pressure sensitive fixing toner composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13199079A JPS5655954A (en) 1979-10-13 1979-10-13 Pressure sensitive fixing toner composition

Publications (1)

Publication Number Publication Date
JPS5655954A true JPS5655954A (en) 1981-05-16

Family

ID=15070968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13199079A Pending JPS5655954A (en) 1979-10-13 1979-10-13 Pressure sensitive fixing toner composition

Country Status (1)

Country Link
JP (1) JPS5655954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980257A (en) * 1988-01-29 1990-12-25 Minolta Camera Kabushiki Kaisha Electrostatic latent image developing toner and method for production thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980257A (en) * 1988-01-29 1990-12-25 Minolta Camera Kabushiki Kaisha Electrostatic latent image developing toner and method for production thereof

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