JPS5660450A - Production of liquid developer for electrostatic photography - Google Patents

Production of liquid developer for electrostatic photography

Info

Publication number
JPS5660450A
JPS5660450A JP13592579A JP13592579A JPS5660450A JP S5660450 A JPS5660450 A JP S5660450A JP 13592579 A JP13592579 A JP 13592579A JP 13592579 A JP13592579 A JP 13592579A JP S5660450 A JPS5660450 A JP S5660450A
Authority
JP
Japan
Prior art keywords
solvent
dispersed
monomer
liquid developer
resin
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
JP13592579A
Other languages
Japanese (ja)
Inventor
Yoji Ide
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 JP13592579A priority Critical patent/JPS5660450A/en
Publication of JPS5660450A publication Critical patent/JPS5660450A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Developers In Electrophotography (AREA)

Abstract

PURPOSE: To obtain a developer liquid superior in stability for elapse, by using concentrated toner obtained by dissolving a soluble resin in a small quantity of the solvent used as the liquid developer and adding and polymerizing the material, where a coloring agent is dispersed in the monomer which becomes unsoluble for the solvent by polymerization, in this solvent.
CONSTITUTION: A soluble resin [the linseed oil modified alkyd resin, the (co) polymer of high-class ester of (metha) acrylic acid, and so on] is dissolved in a small quantity of aliphatic hydrocarbon used as the liquid developer and is heated. Meanwhile, the material is prepared where the coloring agnet (carbon black, dye, pigment, and so on) unsoluble for the said solvent as well as the monomer below is dispersed in the monomer of (metha) acrylic acid low-class ester and so on which is soluble for the said solvent and becomes unsoluble due to polymerzation. The material where the polymerization catalyst is added to the monomer with the coloring agent dispersed is added into the said resin solution and is polymerized to obtained an concentrated toner where particles with coloring agent particles coverted with the resin are dispersed. This concentrated toner is dispersed into a large quantity of the said solvent to obtain a liquid developer adapted to offset printing specially.
COPYRIGHT: (C)1981,JPO&Japio
JP13592579A 1979-10-23 1979-10-23 Production of liquid developer for electrostatic photography Pending JPS5660450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13592579A JPS5660450A (en) 1979-10-23 1979-10-23 Production of liquid developer for electrostatic photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13592579A JPS5660450A (en) 1979-10-23 1979-10-23 Production of liquid developer for electrostatic photography

Publications (1)

Publication Number Publication Date
JPS5660450A true JPS5660450A (en) 1981-05-25

Family

ID=15163051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13592579A Pending JPS5660450A (en) 1979-10-23 1979-10-23 Production of liquid developer for electrostatic photography

Country Status (1)

Country Link
JP (1) JPS5660450A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582851A (en) * 1981-06-29 1983-01-08 Dainippon Printing Co Ltd Wet type toner for electrophotography
US5407771A (en) * 1984-12-10 1995-04-18 Indigo N.V. Toner and liquid composition using same
US7077399B2 (en) 2001-12-14 2006-07-18 Unirec Co., Ltd. Chip collecting machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582851A (en) * 1981-06-29 1983-01-08 Dainippon Printing Co Ltd Wet type toner for electrophotography
JPH0413707B2 (en) * 1981-06-29 1992-03-10 Dainippon Printing Co Ltd
US5407771A (en) * 1984-12-10 1995-04-18 Indigo N.V. Toner and liquid composition using same
US7077399B2 (en) 2001-12-14 2006-07-18 Unirec Co., Ltd. Chip collecting machine

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