CA2541053A1 - Particle external surface additive compositions - Google Patents

Particle external surface additive compositions Download PDF

Info

Publication number
CA2541053A1
CA2541053A1 CA002541053A CA2541053A CA2541053A1 CA 2541053 A1 CA2541053 A1 CA 2541053A1 CA 002541053 A CA002541053 A CA 002541053A CA 2541053 A CA2541053 A CA 2541053A CA 2541053 A1 CA2541053 A1 CA 2541053A1
Authority
CA
Canada
Prior art keywords
stearate
toner
metal
external additives
calcium
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
CA002541053A
Other languages
French (fr)
Other versions
CA2541053C (en
Inventor
Richard P. N. Veregin
Maria N. V. Mcdougall
Eric M. Strohm
Dwight J. Tshudy
Thomas R. Pickering
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 CA2541053A1 publication Critical patent/CA2541053A1/en
Application granted granted Critical
Publication of CA2541053C publication Critical patent/CA2541053C/en
Active 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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09783—Organo-metallic compounds
    • G03G9/09791—Metallic soaps of higher carboxylic acids
    • 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
    • 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
    • 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
    • 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
    • G03G9/09783—Organo-metallic compounds

Abstract

A toner having at least one binder, at least one colorant and external additives.
The external additives include at least one of silica and titania, and at least two metal stearates. A developer may be produced including the toner having at least two metal stearates and a carrier. An electrophotographic machine includes the toner with two metal stearates.

Claims (20)

1. A toner comprising toner particles of at least one binder, at least one colorant, and external additives, wherein the external additives include at least two metal stearate additives.
2. The toner according to claim 1, wherein the external additives include silica and/or titania.
3. The toner according to claim 1, wherein the two metal stearate additives are selected from the group consisting of zinc stearate, calcium stearate, aluminum stearate and magnesium stearate.
4. The toner according to claim 3, wherein the at least two metal stearates include zinc stearate/calcium stearate, zinc stearate/magnesium stearate, aluminum stearate/calcium stearate, calcium stearate/magnesium stearate or aluminum stearate/magnesium stearate.
5. The toner according to claim 4, wherein the at least two metal stearates include aluminum stearate/calcium stearate.
6. The toner according to claim 1, wherein the toner is an emulsion aggregation styrene/acrylate toner.
7. The toner according to claim 1, wherein the toner is an emulsion aggregation polyester toner.
8. The toner according to claim 1, wherein the toner is a conventional jetted toner.
9. The toner according to claim 1, wherein the at least two metal stearates are about 0.025% to about 5.0% by weight of the toner particles.
10. The toner according to claim 1, wherein the at least two metal stearates comprise a first metal stearate and a second metal stearate, wherein the ratio of the first metal stearate to the second metal stearate ranges from about 4:1 to about 1:1.
11. An electrophotographic image forming apparatus comprising a photoreceptor, a conductive magnetic brush development system, and a housing in association with the conductive magnetic brush development system for a developer comprising a toner comprising toner particles of at least one binder, at least one colorant, and external additives, wherein the external additives include silica and/or titania, and at least two metal stearates selected from the group consisting of zinc stearate, calcium stearate, aluminum stearate and magnesium stearate.
12. The electrophotographic image forming apparatus according to claim 11, wherein the conductive magnetic brush development system is a hybrid jumping development system.
13. The electrophotographic image forming apparatus according to claim 11, wherein the conductive magnetic brush development system is a hybrid scavengeless development system.
14. A developer comprising a carrier and a toner, wherein the toner comprises toner particles of at least one binder, at least one colorant, and external additives, wherein the external additives include at least two metal stearates
15. The developer according to claim 14, wherein the external additives include silica and/or titania.
16. The developer according to claim 14, wherein the two metal stearates are selected from the group consisting of zinc stearate, calcium stearate, aluminum stearate and magnesium stearate.
17. The developer according to claim 16, wherein the at least two metal stearates include zinc stearate/calcium stearate, zinc stearate/magnesium stearate, aluminum stearate/calcium stearate, calcium stearate/magnesium stearate or aluminum stearate/magnesium stearate.
18. The developer according to claim 17, wherein the at least two metal stearates include aluminum stearate/calcium stearate.
19. The developer according to claim 15, wherein the at least two metal stearates are about 0.025% to about 5.0% by weight of the toner particles.
20. The developer according to claim 15, wherein the at least two metal stearates comprise a first metal stearate and a second metal stearate, wherein the ratio of the first metal stearate to the second metal stearate is ranges from about 4:1 to about 1:1.
CA002541053A 2005-03-31 2006-03-24 Particle external surface additive compositions Active CA2541053C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/094,664 US7312010B2 (en) 2005-03-31 2005-03-31 Particle external surface additive compositions
US11/094,664 2005-03-31

Publications (2)

Publication Number Publication Date
CA2541053A1 true CA2541053A1 (en) 2006-09-30
CA2541053C CA2541053C (en) 2009-12-22

Family

ID=37030288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002541053A Active CA2541053C (en) 2005-03-31 2006-03-24 Particle external surface additive compositions

Country Status (4)

Country Link
US (1) US7312010B2 (en)
JP (1) JP4907206B2 (en)
CN (1) CN1841217B (en)
CA (1) CA2541053C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5391871B2 (en) * 2009-06-26 2014-01-15 富士ゼロックス株式会社 Toner for developing electrostatic image, developer for developing electrostatic image, toner cartridge, process cartridge, and image forming apparatus
JP2013156430A (en) * 2012-01-30 2013-08-15 Ricoh Co Ltd Toner, and image forming apparatus
CN103558742B (en) * 2013-11-08 2016-11-23 天津复印技术研究所 Fine developer for large-breadth development and preparation method thereof
JP6402506B2 (en) * 2014-06-25 2018-10-10 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming method, and image forming apparatus
CN105116699A (en) * 2015-09-07 2015-12-02 珠海思美亚碳粉有限公司 Developing agent and preparation method thereof
JP6627498B2 (en) * 2015-12-25 2020-01-08 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP7063252B2 (en) * 2018-11-29 2022-05-09 コニカミノルタ株式会社 Two-component developer for static charge image development
CN111978652A (en) * 2020-07-15 2020-11-24 日彩复合塑料(深圳)有限公司 Printer shell material and preparation method thereof

Family Cites Families (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590000A (en) * 1967-06-05 1971-06-29 Xerox Corp Solid developer for latent electrostatic images
US3847604A (en) * 1971-06-10 1974-11-12 Xerox Corp Electrostatic imaging process using nodular carriers
US3981272A (en) 1974-11-20 1976-09-21 Xerox Corporation Mag brush housing with detachable sump section
US3961272A (en) * 1974-12-17 1976-06-01 Witriol Norman M Encoding altimeter
JPS575630Y2 (en) * 1977-01-31 1982-02-02
US4265990A (en) * 1977-05-04 1981-05-05 Xerox Corporation Imaging system with a diamine charge transport material in a polycarbonate resin
JPS58168595U (en) * 1982-05-06 1983-11-10 株式会社サカシタ leather
US4558108A (en) * 1982-12-27 1985-12-10 Xerox Corporation Aqueous suspension polymerization process
US4678734A (en) * 1985-07-05 1987-07-07 Xerox Corporation Process for developer compositions
US4935326A (en) * 1985-10-30 1990-06-19 Xerox Corporation Electrophotographic carrier particles coated with polymer mixture
US4937166A (en) * 1985-10-30 1990-06-26 Xerox Corporation Polymer coated carrier particles for electrophotographic developers
US4771314A (en) * 1986-12-29 1988-09-13 Xerox Corporation Developer apparatus for a highlight printing apparatus
US4901114A (en) * 1987-03-30 1990-02-13 Xerox Corporation Tri level xerography using a MICR toner in combination with a non-MICR toner
US4833504A (en) * 1987-08-31 1989-05-23 Xerox Corporation Single pass highlight color printer including a scavengeless developer housing
US4847655A (en) * 1987-12-11 1989-07-11 Xerox Corporation Highlight color imaging apparatus
US4868608A (en) * 1988-01-04 1989-09-19 Xerox Corporation Highlight color imaging apparatus
US4868600A (en) * 1988-03-21 1989-09-19 Xerox Corporation Scavengeless development apparatus for use in highlight color imaging
JP2657995B2 (en) 1988-07-27 1997-09-30 三田工業株式会社 Toner composition
US4948686A (en) * 1989-04-24 1990-08-14 Xerox Corporation Process for forming two-color images
US5031570A (en) * 1989-10-20 1991-07-16 Xerox Corporation Printing apparatus and toner/developer delivery system therefor
US5032872A (en) * 1989-10-30 1991-07-16 Xerox Corporation Developing device with dual donor rollers including electrically biased electrodes for each donor roller
US5010367A (en) * 1989-12-11 1991-04-23 Xerox Corporation Dual AC development system for controlling the spacing of a toner cloud
US4984019A (en) * 1990-02-26 1991-01-08 Xerox Corporation Electrode wire cleaning
US5061969A (en) * 1990-07-02 1991-10-29 Xerox Corporation Hybrid development scheme for trilevel xerography
US5134442A (en) * 1990-07-26 1992-07-28 Xerox Corporation Electrode wire contamination prevention and detection
US5119147A (en) * 1990-12-24 1992-06-02 Xerox Corporation Selective coloring of bi-level latent electostatic images
US5153647A (en) * 1991-06-27 1992-10-06 Xerox Corporation Development system having tensioned electrode wires
US5212037A (en) * 1991-08-01 1993-05-18 Xerox Corporation Toner process with metal oxides
US5144371A (en) * 1991-08-02 1992-09-01 Xerox Corporation Dual AC/dual frequency scavengeless development
US5206693A (en) * 1991-08-16 1993-04-27 Xerox Corporation Development unit having an asymmetrically biased electrode wires
US5171653A (en) * 1991-09-06 1992-12-15 Xerox Corporation Electrostatic developing composition with carrier having external additive
US5227460A (en) * 1991-12-30 1993-07-13 Xerox Corporation Cross-linked toner resins
US5153648A (en) * 1992-03-02 1992-10-06 Xerox Corporation Electrode wire mounting for scavengeless development
US5172170A (en) * 1992-03-13 1992-12-15 Xerox Corporation Electroded donor roll for a scavengeless developer unit
US5253016A (en) * 1992-05-18 1993-10-12 Xerox Corporation Contaminant control for scavengeless development in a xerographic apparatus
US5290654A (en) * 1992-07-29 1994-03-01 Xerox Corporation Microsuspension processes for toner compositions
US5278020A (en) * 1992-08-28 1994-01-11 Xerox Corporation Toner composition and processes thereof
US5245392A (en) * 1992-10-02 1993-09-14 Xerox Corporation Donor roll for scavengeless development in a xerographic apparatus
US5300992A (en) * 1992-12-07 1994-04-05 Xerox Corporation Mounting taut wires in gentle, self-spaced contact with a roll
US5308734A (en) * 1992-12-14 1994-05-03 Xerox Corporation Toner processes
US5346797A (en) * 1993-02-25 1994-09-13 Xerox Corporation Toner processes
US5403693A (en) * 1993-06-25 1995-04-04 Xerox Corporation Toner aggregation and coalescence processes
US5344738A (en) * 1993-06-25 1994-09-06 Xerox Corporation Process of making toner compositions
US5418108A (en) * 1993-06-25 1995-05-23 Xerox Corporation Toner emulsion aggregation process
US5370963A (en) * 1993-06-25 1994-12-06 Xerox Corporation Toner emulsion aggregation processes
US5364729A (en) * 1993-06-25 1994-11-15 Xerox Corporation Toner aggregation processes
US5311258A (en) * 1993-08-23 1994-05-10 Xerox Corporation On-the-fly electrostatic cleaning of scavengeless development electrode wires with D.C. bias
US5345298A (en) * 1993-10-20 1994-09-06 Xerox Corporation Magnetic brush development apparatus for toner add/mix dispenser
US5416566A (en) * 1994-06-08 1995-05-16 Xerox Corporation Development apparatus having an improved developer feeder roll
EP0703503A1 (en) * 1994-08-31 1996-03-27 Mita Industrial Co., Ltd. Toner for a two-component type developer
US5510220A (en) * 1995-01-27 1996-04-23 Xerox Corporation Conductive developer compositions with surface additives
JP3344611B2 (en) * 1995-09-12 2002-11-11 日立金属株式会社 Developer for developing electrostatic images
US5593807A (en) * 1996-05-10 1997-01-14 Xerox Corporation Toner processes using sodium sulfonated polyester resins
US6365316B1 (en) * 2000-03-07 2002-04-02 Xerox Corporation Toner and developer providing offset lithography print quality
US6177221B1 (en) * 2000-03-07 2001-01-23 Xerox Corporation Carrier and developer providing offset lithography print quality
US6319647B1 (en) * 2000-03-07 2001-11-20 Xerox Corporation Toner and developer for magnetic brush development system
US6416916B1 (en) * 2000-03-07 2002-07-09 Xerox Corporation Toner and developer for magnetic brush development system
US6756176B2 (en) * 2002-09-27 2004-06-29 Xerox Corporation Toner processes
JP4093023B2 (en) * 2002-11-15 2008-05-28 コニカミノルタビジネステクノロジーズ株式会社 Nonmagnetic one-component developing toner and image forming method

Also Published As

Publication number Publication date
JP4907206B2 (en) 2012-03-28
CA2541053C (en) 2009-12-22
JP2006285240A (en) 2006-10-19
CN1841217A (en) 2006-10-04
US20060222986A1 (en) 2006-10-05
CN1841217B (en) 2012-09-05
US7312010B2 (en) 2007-12-25

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