CA2551005A1 - Toner containing silicate clay particles for improved relative humidity sensitivity - Google Patents

Toner containing silicate clay particles for improved relative humidity sensitivity Download PDF

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Publication number
CA2551005A1
CA2551005A1 CA002551005A CA2551005A CA2551005A1 CA 2551005 A1 CA2551005 A1 CA 2551005A1 CA 002551005 A CA002551005 A CA 002551005A CA 2551005 A CA2551005 A CA 2551005A CA 2551005 A1 CA2551005 A1 CA 2551005A1
Authority
CA
Canada
Prior art keywords
toner
binder
particles
toner according
acrylate
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
CA002551005A
Other languages
French (fr)
Other versions
CA2551005C (en
Inventor
Richard P.N. Veregin
Daryl Vanbesien
Cuong Vong
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 Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of CA2551005A1 publication Critical patent/CA2551005A1/en
Application granted granted Critical
Publication of CA2551005C publication Critical patent/CA2551005C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G03G9/093—Encapsulated toner particles
    • G03G9/0935—Encapsulated toner particles specified by the core material
    • G03G9/09385—Inorganic compounds
    • 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
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706—Polymers of alkenyl-aromatic compounds
    • G03G9/08708—Copolymers of styrene
    • G03G9/08711—Copolymers of styrene with esters of acrylic or methacrylic acid
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08726—Polymers of unsaturated acids or derivatives thereof
    • G03G9/08728—Polymers of esters
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08775—Natural macromolecular compounds or derivatives thereof
    • G03G9/08782—Waxes
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08793—Crosslinked polymers
    • 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
    • G03G9/093—Encapsulated toner particles
    • G03G9/09307—Encapsulated toner particles specified by the shell material
    • G03G9/09314—Macromolecular compounds
    • G03G9/09321—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/093—Encapsulated toner particles
    • G03G9/09307—Encapsulated toner particles specified by the shell material
    • G03G9/09342—Inorganic compounds
    • 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
    • G03G9/093—Encapsulated toner particles
    • G03G9/0935—Encapsulated toner particles specified by the core material
    • G03G9/09357—Macromolecular compounds
    • G03G9/09364—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G03G9/09725—Silicon-oxides; Silicates

Abstract

Toner particles, preferably emulsion aggregation toner particles, have improved relative humidity sensitivity through inclusion therein of silicate clay particles such as kaolin clay. The toner particles include a binder, preferably an acrylate-containing binder, at least one colorant, and silicate clay particles distributed in the binder. In a core-shell embodiment, the silicate particles are distributed in the core, the shell layer, or both. Developers of the toner in combination with carrier particles are also described.

Claims (22)

1. A toner comprising toner particles comprising a binder, at least one colorant, and silicate clay particles distributed in the binder.
2. The toner according to claim 1, wherein the toner particles are emulsion aggregation toner particles.
3. The toner according to claim 1, wherein the binder includes an acrylate-containing polymer.
4. The toner according to claim 3, wherein the acrylate-containing polymer is a styrene-alkyl acrylate.
5. The toner according to claim 4, wherein the styrene-alkyl acrylate polymer is a styrene-butyl acrylate.
6. The toner according to claim 1, wherein the binder includes an acrylic acid functional group.
7. The toner according to claim 3, wherein the binder further comprises an acrylate-containing gel latex.
8. The toner according to claim 7, wherein the acrylate-containing gel comprises from about 8% to about 35% by weight of the total binder.
9. The toner according to claim 3, wherein the toner particles further include a shell layer thereon.
10. The toner according to claim 9, wherein the shell layer consists essentially of an acrylate-containing polymer.
11. The toner according to claim 10, wherein the acrylate-containing polymer of the shell layer and the acrylate-containing polymer of the binder are the same.
12. The toner according to claim 9, wherein the shell layer also includes silicate clay particles distributed therein.
13. The toner according to claim 1, wherein the toner particles further comprise a wax dispersion.
14. The toner according to claim 1, wherein the silicate clay particles are aluminosilicate clay particles.
15. The toner according to claim 1, wherein the silicate clay particles are kaolin clay particles.
16. The toner according to claim 1, wherein the silicate particles comprise about 2% to about 15% by weight of the toner.
17. The toner according to claim 1, wherein the silicate clay particles are hydrated.
18. A developer comprising the toner according to claim 1 and carrier particles.
19. A toner comprising toner particles having a core with a shell layer thereon, the core comprising a binder and at least one colorant, and the shell comprising a binder, and wherein the core binder, the shell binder, or both further includes silicate clay particles distributed therein.
20. A xerographic imaging apparatus comprising an image forming station and a housing containing the toner according to claim 1.
21. A method of improving the relative humidity sensitivity of a toner comprised of a binder and at least one colorant, comprising including silicate clay particle in the binder, and forming the toner particle from the binder.
22. The method according to claim 21, wherein the silicate clay particles are introduced as a dispersion into an aggregation phase of toner particle formation.
CA2551005A 2005-07-01 2006-06-23 Toner containing silicate clay particles for improved relative humidity sensitivity Expired - Fee Related CA2551005C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/171,463 2005-07-01
US11/171,463 US7759039B2 (en) 2005-07-01 2005-07-01 Toner containing silicate clay particles for improved relative humidity sensitivity

Publications (2)

Publication Number Publication Date
CA2551005A1 true CA2551005A1 (en) 2007-01-01
CA2551005C CA2551005C (en) 2010-08-17

Family

ID=37000010

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2551005A Expired - Fee Related CA2551005C (en) 2005-07-01 2006-06-23 Toner containing silicate clay particles for improved relative humidity sensitivity

Country Status (8)

Country Link
US (1) US7759039B2 (en)
EP (1) EP1739496B1 (en)
JP (1) JP4865420B2 (en)
CN (1) CN1892452B (en)
BR (1) BRPI0602451B1 (en)
CA (1) CA2551005C (en)
DE (1) DE602006004401D1 (en)
MX (1) MXPA06007368A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7910277B2 (en) 2007-01-17 2011-03-22 Xerox Corporation Predicting relative humidity sensitivity of developer materials

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US7943280B2 (en) * 2006-03-15 2011-05-17 Ricoh Company, Ltd. Toner containing a laminar inorganic mineral in which part or all of the ions present between layers are modified by organic ions
US8043778B2 (en) * 2006-09-15 2011-10-25 Ricoh Company Limited Toner, method for preparing the toner, and image forming apparatus using the toner
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US20080213682A1 (en) * 2007-03-02 2008-09-04 Akinori Saitoh Toner for developing electrostatic image, method for producing the toner, image forming method, image forming apparatus and process cartridge using the toner
JP2008257185A (en) * 2007-03-15 2008-10-23 Ricoh Co Ltd Toner and process cartridge
JP5102078B2 (en) * 2007-03-15 2012-12-19 株式会社リコー Image forming method and process cartridge
US20080227018A1 (en) * 2007-03-16 2008-09-18 Junichi Awamura Toner for developing a latent electrostatic image, and image forming method and apparatus using the toner
US7892714B2 (en) * 2007-08-17 2011-02-22 Xerox Corporation Toner particles having nano-sized composites containing polymer modified clays
US7939237B2 (en) * 2007-08-17 2011-05-10 Xerox Corporation Nano-sized composites containing polymer modified clays and method for making toner particles using same
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JP6089726B2 (en) * 2013-01-29 2017-03-08 株式会社リコー Toner for developing electrostatic charge, developer for developing electrostatic image, and image forming apparatus
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JP6349842B2 (en) * 2014-03-25 2018-07-04 富士ゼロックス株式会社 Bright toner, electrostatic charge image developer, developer cartridge, process cartridge, image forming apparatus, and image forming method
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
MXPA06007368A (en) 2007-01-10
DE602006004401D1 (en) 2009-02-05
BRPI0602451A (en) 2007-02-21
CN1892452B (en) 2011-08-10
CA2551005C (en) 2010-08-17
CN1892452A (en) 2007-01-10
JP4865420B2 (en) 2012-02-01
BRPI0602451B1 (en) 2019-05-07
US20070003855A1 (en) 2007-01-04
US7759039B2 (en) 2010-07-20
JP2007011347A (en) 2007-01-18
EP1739496A1 (en) 2007-01-03
EP1739496B1 (en) 2008-12-24

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