JPS5522718A - Liquid developer for electrostatic photography - Google Patents

Liquid developer for electrostatic photography

Info

Publication number
JPS5522718A
JPS5522718A JP9491578A JP9491578A JPS5522718A JP S5522718 A JPS5522718 A JP S5522718A JP 9491578 A JP9491578 A JP 9491578A JP 9491578 A JP9491578 A JP 9491578A JP S5522718 A JPS5522718 A JP S5522718A
Authority
JP
Japan
Prior art keywords
copolymer
liquid developer
dispersed
formula
abovementioned
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
JP9491578A
Other languages
Japanese (ja)
Inventor
Motoo Tasaka
Junichiro Hashimoto
Kazuo Tsubushi
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 JP9491578A priority Critical patent/JPS5522718A/en
Publication of JPS5522718A publication Critical patent/JPS5522718A/en
Pending legal-status Critical Current

Links

Landscapes

  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

PURPOSE: To improve dispersion stability, fixability, etc. and obtain always distinct images by forming the liquid defveloper for electrophotography through the use of the specific esterified copolymer (or its graft copolymer) as the resin to be used for the composition of the toner.
CONSTITUTION: The esterified copolymer (a) obtained through esterification of the monomer shown by formula I and glycidyl-contained monomer by carboxylic acid (anhydride) or the graft copolymer or (b) obtained through grafting of the monomer shown by formula II in the abovementioned copolymer a is used. About 0.1 to 10 pts.wt. of pigments (dyes) are dispersed to 1 pt.wt. of a nonaqueous resin dispersion containing the abovementioned copolymer (a or b) at about 15 to 60% as solids to form the concentrated toner which is then dispersed and diluted in a carrier solution, whereby the captioned liquid developer is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP9491578A 1978-08-03 1978-08-03 Liquid developer for electrostatic photography Pending JPS5522718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9491578A JPS5522718A (en) 1978-08-03 1978-08-03 Liquid developer for electrostatic photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9491578A JPS5522718A (en) 1978-08-03 1978-08-03 Liquid developer for electrostatic photography

Publications (1)

Publication Number Publication Date
JPS5522718A true JPS5522718A (en) 1980-02-18

Family

ID=14123289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9491578A Pending JPS5522718A (en) 1978-08-03 1978-08-03 Liquid developer for electrostatic photography

Country Status (1)

Country Link
JP (1) JPS5522718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609195U (en) * 1983-06-30 1985-01-22 大亜真空技研株式会社 Electrode insulation universal seal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609195U (en) * 1983-06-30 1985-01-22 大亜真空技研株式会社 Electrode insulation universal seal

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