CA2612962A1 - Toner compositions - Google Patents

Toner compositions Download PDF

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Publication number
CA2612962A1
CA2612962A1 CA002612962A CA2612962A CA2612962A1 CA 2612962 A1 CA2612962 A1 CA 2612962A1 CA 002612962 A CA002612962 A CA 002612962A CA 2612962 A CA2612962 A CA 2612962A CA 2612962 A1 CA2612962 A1 CA 2612962A1
Authority
CA
Canada
Prior art keywords
poly
resinates
styrene
latex
toner
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
CA002612962A
Other languages
French (fr)
Other versions
CA2612962C (en
Inventor
Zhen Lai
Yuhua Tong
Chieh-Min Cheng
Christopher M. Wolfe
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39434234&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2612962(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of CA2612962A1 publication Critical patent/CA2612962A1/en
Application granted granted Critical
Publication of CA2612962C publication Critical patent/CA2612962C/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
    • G03G9/09307—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
    • G03G9/09314—Macromolecular 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
    • G03G9/09307—Encapsulated toner particles specified by the shell material
    • G03G9/09314—Macromolecular compounds
    • G03G9/09328—Macromolecular compounds obtained otherwise than 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
    • G03G9/09335—Non-macromolecular organic 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
    • G03G9/09392—Preparation thereof

Abstract

A toner having its surface functionalized with alkaline resins is provided, and processes for producing the same.

Claims (20)

1. A toner comprising:

a core comprising a first latex, a colorant, and an optional wax; and a shell comprising a second latex functionalized with an alkaline resin.
2. A toner as in claim 1, wherein the first latex and the second latex are the same or different and are selected from the group consisting of styrenes, acrylates, methacrylates, butadienes, isoprenes, acrylic acids, methacrylic acids, acrylonitriles, and combinations thereof, the first latex has a glass transition temperature from about 45°C to about 65°C, and the second latex has a glass transition temperature from about 45°C to about 70°C.
3. A toner as in claim 1, wherein the first latex and the second latex are the same or different and are selected from the group consisting of poly(styrene-butadiene), poly(methyl methacrylate-butadiene), poly(ethyl methacrylate-butadiene), poly(propyl methacrylate-butadiene), poly(butyl methacrylate-butadiene), poly(methyl acrylate-butadiene), poly(ethyl acrylate-butadiene), poly(propyl acrylate-butadiene), poly(butyl acrylate-butadiene), poly(styrene-isoprene), poly(methylstyrene-isoprene), poly(methyl methacrylate-isoprene), poly(ethyl methacrylate-isoprene), poly(propyl methacrylate-isoprene), poly(butyl methacrylateisoprene), poly(methyl acrylate-isoprene), poly(ethyl acrylate-isoprene), poly(propyl acrylate-isoprene), poly(butyl acrylate-isoprene), poly(styrene-butylacrylate), poly(styrene-butadiene), poly(styrene-isoprene), poly(styrene-butyl methacrylate), poly(styrene-butyl acrylate-acrylic acid), poly(styrene-butadiene-acrylic acid), poly(styrene-isoprene-acrylic acid), poly(styrene-butyl methacrylate-acrylic acid), poly(butyl methacrylate-butyl acrylate), poly(butyl methacrylate-acrylic acid), poly(styrene-butyl acrylate-acrylonitrile-acrylic acid), poly(acrylonitrile-butyl acrylate-acrylic acid), and combinations thereof.
4. A toner as in claim 1, wherein the first latex and optionally the second latex are contacted with a stabilizer of formula wherein R1 is selected from the group consisting of hydrogen and methyl, R2 and R3 are independently selected from the group consisting of alkyl groups having from about 1 to about 12 carbon atoms and phenyl groups, and n is from about 0 to about 20.
5. A toner as in claim 4, wherein the stabilizer is selected from the group consisting of beta carboxyethyl acrylate, poly(2-carboxyethyl) acrylate, 2-carboxyethyl methacrylate, and acrylic acid and its derivatives.
6. A toner as in claim 1, wherein the alkaline resin functional groups of the second latex are selected from the group consisting of calcium resinates, beryllium resinates, magnesium resinates, strontium resinates, barium resinates, radium resinates, zinc resinates, aluminum resinates, copper resinates, iron resinates, and combinations thereof.
7. A toner as in claim 1, wherein the alkaline resin functional groups of the second latex comprise a calcium resinate selected from the group consisting of
8. A toner as in claim 1, wherein the colorant comprises a magenta pigment selected from the group consisting of Pigment Red 122, Pigment Red 185, Pigment Red 192, Pigment Red 202, Pigment Red 206, Pigment Red 235, Pigment Red 269, and combinations thereof.
9. A toner as in claim 1, wherein the first latex comprises a poly(styrene-butyl acrylate) optionally possessing functional groups comprising an alkaline resin, and the second latex comprises a poly(styrene-butyl acrylate) functionalized with a calcium resinate.
10. A toner as in claim 1, wherein the toner particles have a size from about 1 micron to about 20 microns, and a circularity from about 0.9 to about 0.99.
11. A toner as in claim 1, wherein the toner particles possess a ratio of J-Zone charge to B-Zone charge from about 1 to about 2, and a ratio of J-Zone charge to A-Zone charge from about 1.15 to about 2.55.
12. A toner as in claim 1, wherein the toner particles possess a BET
surface area of from about 1 m2/g to about 5 m2/g.
13. A developer composition comprising the toner of claim 1.
14. A toner comprising a latex, a colorant, and an optional wax possessing particles having a BET surface area of from about 1 m2/g to about 5 m2/g, a ratio of J-Zone charge to B-Zone charge from about 1 to about 2, and a ratio of J-Zone charge to A-Zone charge from about 1.15 to about 2.55.
15. The toner of claim 14, wherein the latex is selected from the group consisting of styrenes, acrylates, methacrylates, butadienes, isoprenes, acrylic acids, methacrylic acids, acrylonitriles, and combinations thereof, having a glass transition temperature from about 45°C to about 65°C.
16. The toner of claim 14, wherein the colorant comprises a magenta pigment selected from the group consisting of Pigment Red 122, Pigment Red 185, Pigment Red 192, Pigment Red 202, Pigment Red 206, Pigment Red 235, Pigment Red 269, and combinations thereof.
17. The toner of claim 14, wherein the toner further comprises a shell comprising a second latex functionalized with an alkaline resin.
18. The toner of claim 17, wherein the second latex is selected from the group consisting of styrenes, acrylates, methacrylates, butadienes, isoprenes, acrylic acids, methacrylic acids, acrylonitriles, and combinations thereof, having a glass transition temperature from about 45°C to about 70°C and the alkaline resin functional groups of the second latex are selected from the group consisting of calcium resinates, beryllium resinates, magnesium resinates, strontium resinates, barium resinates, radium resinates, zinc resinates, aluminum resinates, copper resinates, iron resinates, and combinations thereof.
19. A toner comprising:

a core comprising a first latex selected from the group consisting of styrenes, acrylates, methacrylates, butadienes, isoprenes, acrylic acids, methacrylic acids, acrylonitriles, and combinations thereof having a glass transition temperature from about 45°C to about 65°C, a colorant comprising a magenta pigment selected from the group consisting of Pigment Red 122, Pigment Red 185, Pigment Red 192, Pigment Red 202, Pigment Red 206, Pigment Red 235, Pigment Red 269, and combinations thereof, and an optional wax; and a shell comprising a second latex selected from the group consisting of styrenes, acrylates, methacrylates, butadienes, isoprenes, acrylic acids, methacrylic acids, acrylonitriles, and combinations thereof having a glass transition temperature from about 45°C to about 70°C, functionalized with an alkaline resin selected from the group consisting of calcium resinates, beryllium resinates, magnesium resinates, strontium resinates, barium resinates, radium resinates, zinc resinates, aluminum resinates, copper resinates, iron resinates, and combinations thereof.
20. The toner of claim 19, wherein the first latex and the second latex are the same or different and are selected from the group consisting of poly(styrene-butadiene), poly(methyl methacrylate-butadiene), poly(ethyl methacrylate-butadiene), poly(propyl methacrylate-butadiene), poly(butyl methacrylate-butadiene), poly(methyl acrylate-butadiene), poly(ethyl acrylate-butadiene), poly(propyl acrylate-butadiene), poly(butyl acrylate-butadiene), poly(styrene-isoprene), poly(methylstyrene-isoprene), poly(methyl methacrylate-isoprene), poly(ethyl methacrylate-isoprene), poly(propyl methacrylate-isoprene), poly(butyl methacrylateisoprene), poly(methyl acrylate-isoprene), poly(ethyl acrylate-isoprene), poly(propyl acrylate-isoprene), poly(butyl acrylate-isoprene), poly(styrene-butylacrylate), poly(styrene-butadiene), poly(styrene-isoprene), poly(styrene-butyl methacrylate), poly(styrene-butyl acrylate-acrylic acid), poly(styrene-butadiene-acrylic acid), poly(styrene-isoprene-acrylic acid), poly(styrene-butyl methacrylate-acrylic acid), poly(butyl methacrylate-butyl acrylate), poly(butyl methacrylate-acrylic acid), poly(styrene-butyl acrylate-acrylonitrile-acrylic acid), poly(acrylonitrile-butyl acrylate-acrylic acid), and combinations thereof, and the alkaline resin functional groups of the second latex comprise a calcium resinate selected from the group consisting of
CA2612962A 2006-12-08 2007-11-30 Toner compositions Expired - Fee Related CA2612962C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/636,081 2006-12-08
US11/636,081 US7727696B2 (en) 2006-12-08 2006-12-08 Toner compositions

Publications (2)

Publication Number Publication Date
CA2612962A1 true CA2612962A1 (en) 2008-06-08
CA2612962C CA2612962C (en) 2012-07-03

Family

ID=39434234

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2612962A Expired - Fee Related CA2612962C (en) 2006-12-08 2007-11-30 Toner compositions

Country Status (6)

Country Link
US (1) US7727696B2 (en)
EP (1) EP1939235B1 (en)
JP (1) JP5118456B2 (en)
CN (1) CN101196703B (en)
BR (1) BRPI0705955A (en)
CA (1) CA2612962C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7691552B2 (en) * 2006-08-15 2010-04-06 Xerox Corporation Toner composition
JP4551952B2 (en) * 2008-07-04 2010-09-29 シャープ株式会社 Resin-coated carrier, two-component developer, developing device, and image forming apparatus
JP4741684B2 (en) * 2009-01-21 2011-08-03 シャープ株式会社 Two-component developer, developing device and image forming apparatus
US8580469B2 (en) 2011-12-15 2013-11-12 Xerox Corporation Colored toners
US20170075241A1 (en) 2015-09-14 2017-03-16 King Abdulaziz City For Science And Technology POLYMERIZED TONER MATERIAL COMPRISING SILICON (Si) NANOPARTICLES AND PROCESS FOR ITS PREPARATION
US10534280B2 (en) * 2015-12-18 2020-01-14 Hp Indigo B.V. Electrostatic ink compositions

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Also Published As

Publication number Publication date
BRPI0705955A (en) 2008-07-29
US7727696B2 (en) 2010-06-01
CA2612962C (en) 2012-07-03
EP1939235B1 (en) 2013-05-01
CN101196703B (en) 2012-08-08
EP1939235A3 (en) 2009-09-09
CN101196703A (en) 2008-06-11
JP2008146064A (en) 2008-06-26
JP5118456B2 (en) 2013-01-16
US20080138732A1 (en) 2008-06-12
EP1939235A2 (en) 2008-07-02

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Effective date: 20201130