GB1117224A - Process for the production of electrostatographic toner particles - Google Patents

Process for the production of electrostatographic toner particles

Info

Publication number
GB1117224A
GB1117224A GB2701065A GB2701065A GB1117224A GB 1117224 A GB1117224 A GB 1117224A GB 2701065 A GB2701065 A GB 2701065A GB 2701065 A GB2701065 A GB 2701065A GB 1117224 A GB1117224 A GB 1117224A
Authority
GB
United Kingdom
Prior art keywords
particles
monomer
suspension
surfactant
diameter
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.)
Expired
Application number
GB2701065A
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.)
Xerox Ltd
Original Assignee
Rank Xerox 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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1117224A publication Critical patent/GB1117224A/en
Expired 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
    • G03G9/0802—Preparation methods
    • G03G9/0804—Preparation methods whereby the components are brought together in a liquid dispersing medium
    • G03G9/0806—Preparation methods whereby the components are brought together in a liquid dispersing medium whereby chemical synthesis of at least one of the toner components takes place
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/006—Preparation of organic pigments
    • C09B67/0061—Preparation of organic pigments by grinding a dyed resin

Abstract

Electrostatographic toner particles are prepared by forming a plurality of surfactant micelles in an aqueous medium (preferably before the addition of monomer) and providing in the medium, in the presence of a water-soluble polymerization catalyst, a sufficient supply of at least one ethylenically unsaturated monomer to form a suspension of surfactant encapsulated polymer particles of average size 0.01-50 microns in diameter and with the majority of particles having a diameter within \sB10% of the mean, by preferential diffusion of monomer to the smallest of the particles during polymerization, adding to the suspension a dye capable of colouring the particles and then separating the particles from the suspension, e.g. by spray drying. In examples vinyl chloride or a mixture of styrene and n-butyl methacrylate or butadiene is polymerized in an aq. emulsion containing sodium N - methyl - N - oleyl - taurate, potassium or ammonium persulphate, sodium sulphite and sodium dioctyl sulphosuccinate. The dye may be cosine blue or acridine yellow. The monomer and surfactant may be added during polymerization.
GB2701065A 1964-07-02 1965-06-25 Process for the production of electrostatographic toner particles Expired GB1117224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38007564A 1964-07-02 1964-07-02

Publications (1)

Publication Number Publication Date
GB1117224A true GB1117224A (en) 1968-06-19

Family

ID=23499804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2701065A Expired GB1117224A (en) 1964-07-02 1965-06-25 Process for the production of electrostatographic toner particles

Country Status (3)

Country Link
DE (1) DE1595242A1 (en)
GB (1) GB1117224A (en)
NL (1) NL6508581A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394430A (en) 1981-04-14 1983-07-19 Eastman Kodak Company Electrophotographic dry toner and developer compositions
EP0104498A2 (en) * 1982-09-02 1984-04-04 Robert W. Martin Polymer-encapsulated dispersed solids and methods
EP0154739A2 (en) * 1984-02-27 1985-09-18 Robert W. Martin Method of encapsulating finely divided solid particles and stable suspensions prepared thereby
USRE34145E (en) * 1982-09-02 1992-12-15 Union Carbide Chemicals & Plastics Technology Corporation Encapsulating finely divided solid particles in stable suspensions
US5480757A (en) * 1994-06-08 1996-01-02 Eastman Kodak Company Two component electrophotographic developers and preparation method
EP0690355A1 (en) 1994-06-08 1996-01-03 Eastman Kodak Company Humidity-stabilized toners and developers
EP1038573A2 (en) * 1999-03-19 2000-09-27 Kao Corporation Process for preparing emulsion
US7314696B2 (en) 2001-06-13 2008-01-01 Eastman Kodak Company Electrophotographic toner and development process with improved charge to mass stability
US8147948B1 (en) 2010-10-26 2012-04-03 Eastman Kodak Company Printed article
US8465899B2 (en) 2010-10-26 2013-06-18 Eastman Kodak Company Large particle toner printing method
US8530126B2 (en) 2010-10-26 2013-09-10 Eastman Kodak Company Large particle toner
US8626015B2 (en) 2010-10-26 2014-01-07 Eastman Kodak Company Large particle toner printer

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394430A (en) 1981-04-14 1983-07-19 Eastman Kodak Company Electrophotographic dry toner and developer compositions
EP0104498A2 (en) * 1982-09-02 1984-04-04 Robert W. Martin Polymer-encapsulated dispersed solids and methods
EP0104498A3 (en) * 1982-09-02 1986-02-26 Robert W. Martin Polymer-encapsulated dispersed solids and methods
USRE34145E (en) * 1982-09-02 1992-12-15 Union Carbide Chemicals & Plastics Technology Corporation Encapsulating finely divided solid particles in stable suspensions
EP0154739A2 (en) * 1984-02-27 1985-09-18 Robert W. Martin Method of encapsulating finely divided solid particles and stable suspensions prepared thereby
EP0154739A3 (en) * 1984-02-27 1986-11-12 Robert W. Martin Method of encapsulating finely divided solid particles and stable suspensions prepared thereby
US5480757A (en) * 1994-06-08 1996-01-02 Eastman Kodak Company Two component electrophotographic developers and preparation method
EP0690355A1 (en) 1994-06-08 1996-01-03 Eastman Kodak Company Humidity-stabilized toners and developers
EP1038573A2 (en) * 1999-03-19 2000-09-27 Kao Corporation Process for preparing emulsion
EP1038573A3 (en) * 1999-03-19 2001-03-28 Kao Corporation Process for preparing emulsion
US6410605B1 (en) 1999-03-19 2002-06-25 Kao Corporation Process for preparing emulsion
US7314696B2 (en) 2001-06-13 2008-01-01 Eastman Kodak Company Electrophotographic toner and development process with improved charge to mass stability
US8147948B1 (en) 2010-10-26 2012-04-03 Eastman Kodak Company Printed article
US8465899B2 (en) 2010-10-26 2013-06-18 Eastman Kodak Company Large particle toner printing method
US8530126B2 (en) 2010-10-26 2013-09-10 Eastman Kodak Company Large particle toner
US8626015B2 (en) 2010-10-26 2014-01-07 Eastman Kodak Company Large particle toner printer

Also Published As

Publication number Publication date
NL6508581A (en) 1966-01-03
DE1595242A1 (en) 1970-01-02

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