EP0594945B1 - Fluorocarbon lubricated printer toner particles - Google Patents
Fluorocarbon lubricated printer toner particles Download PDFInfo
- Publication number
- EP0594945B1 EP0594945B1 EP19930110126 EP93110126A EP0594945B1 EP 0594945 B1 EP0594945 B1 EP 0594945B1 EP 19930110126 EP19930110126 EP 19930110126 EP 93110126 A EP93110126 A EP 93110126A EP 0594945 B1 EP0594945 B1 EP 0594945B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toner particles
- toner
- solvent
- fluorocarbon
- oil
- 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 - Lifetime
Links
Images
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
-
- 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
- G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components
-
- 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
- G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08759—Polyethers
-
- 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
- G03G9/09733—Organic compounds
- G03G9/09766—Organic compounds comprising fluorine
Definitions
- JP-1091141 relates to a toner for developing an electrostatic latent image according to which the toner includes a binding resin powder and fine powder particles having a diameter smaller than that of the powder of the binding resin.
- the toner includes a binding resin powder and fine powder particles having a diameter smaller than that of the powder of the binding resin.
- fluorocarbon oil and solvent There is no mention concerning the amounts of fluorocarbon oil and solvent and as to the use of a solvent in combination with the fluorocarbon oil.
- the process further employs a solvent for the fluorocarbon oil.
- the chosen solvent must not attack the toner particles, and must exhibit a low boiling point.
- a preferred solvent is perfluoro alkane, a non-polar solvent that does not attack polar surfaces of toner particles and is a good solvent for fluorocarbon oils.
- the 3M Company, Commercial Chemicals Division, 223-6S-04 3M Center, Saint Paul, Minnesota 55144-1000 markets a perfluoro alkane solvent called "Fluorinert" which was employed in the development of the invention.
- the preferred solvent is Fluorinert (FC-72) which is a C8 perfluoro alkane.
- the mechanism used to carry out the invention was a "Rotavapor" system such as is shown in the Fig.
- a mixture of toner particles, fluorocarbon lubricant and a perfluoro alkane solvent was emplaced in a flask 10 that was attached to a vacuum/drive system 12.
- Flask 10 was immersed in a heating bath 14 that enabled an elevation of the temperature of the mixture contained in flask 10. The elevated temperature is sufficiently high to enhance volatilization of the solvent, but must not exceed the melting temperature of the toner particles.
- Flask 10 is rotated by drive system 12 while simultaneously, a vacuum is applied to flask 10. During operation, the elevated temperature of flask 10 causes volatilization of the perfluoro alkane solvent, which solvent enters the cooling system 16 via tube 18. Within cooling system 16, the solvent condenses and precipitates into receiving flask 20.
- a magnetic ink character recognition (MICR) toner e.g. a MICR toner that is a styrene-based monocomponent-type toner, obtained from the Canon Corporation, Japan was coated with perfluoro poly propoxy-methoxy oil (Fomblin Y). The coating was accomplished by adding either 15 or 300 micro liters of Fomblin Y to 200 mL of perfluoro alkane solvent (3M FC72). One hundred grams of the monocomponent toner was added to a 500 mL round bottom flask 10 (see Fig.). A mixture of the solvent and fluorocarbon lubricant was added to the flask.
- MICR magnetic ink character recognition
- the fluorocarbon oil was found to be stable and nonvolatile.
- the toner operated successfully in the printer and the perfluoro alkane solvent used did not degrade the toner.
- the print quality was equal to noncoated toner particles.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Developing Agents For Electrophotography (AREA)
Description
Claims (4)
- A method of coating styrene-based monocomponent polar toner particles with a thin coating of a fluorocarbon oil, said toner particles suitable for use in an electrostatic printer, the method comprising the steps of:a) combining said toner particles with a mixture of a fluorocarbon oil and a non-polar perfluoro alkane solvent, said fluorocarbon oil and perfluoro alkane solvent being present in said mixture in a ratio of fluorocarbon oil to solvent within a range of 15 to 300 microliters of said oil per 100 ml of said solvent all per 100g of toner particles;b) heating the mixture combination of step (a) to an elevated temperature in an evacuated environment, said temperature being less than the melting temperature of said toner particles; andc) agitating said mixture during said heating step to cause a coating of said toner particles with said fluorocarbon oil, while said heating causes volatilization of said perfluoro alkane solvent.
- The method as recited in claim 1 wherein said fluorocarbon oil is perfluoro poly propoxy-methoxy oil.
- The method as recited in claim 1 wherein said toner is a magnetic ink character recognition toner.
- The method as recited in claim 1 wherein said perfluoro alkane solvent is C8 perfluoro alkane.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96432692A | 1992-10-21 | 1992-10-21 | |
US964326 | 1992-10-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0594945A1 EP0594945A1 (en) | 1994-05-04 |
EP0594945B1 true EP0594945B1 (en) | 1998-12-16 |
Family
ID=25508417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19930110126 Expired - Lifetime EP0594945B1 (en) | 1992-10-21 | 1993-06-24 | Fluorocarbon lubricated printer toner particles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0594945B1 (en) |
JP (1) | JP3481280B2 (en) |
DE (1) | DE69322596T2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8133554B2 (en) | 2004-05-06 | 2012-03-13 | Micron Technology, Inc. | Methods for depositing material onto microfeature workpieces in reaction chambers and systems for depositing materials onto microfeature workpieces |
JP2006285198A (en) * | 2005-03-09 | 2006-10-19 | Hosokawa Funtai Gijutsu Kenkyusho:Kk | Toner particle, apparatus for manufacturing toner particle, and method for manufacturing toner particle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124428A (en) * | 1977-04-07 | 1978-10-30 | Mita Industrial Co Ltd | Developing agent for use in electrostatic image |
JPS598821B2 (en) * | 1978-10-09 | 1984-02-27 | コニカ株式会社 | Magnetic toner for developing electrostatic images |
JPS5716460A (en) * | 1980-07-02 | 1982-01-27 | Sakata Shokai Ltd | Preparation of powdery toner |
US4369240A (en) * | 1980-11-07 | 1983-01-18 | E. I. Du Pont De Nemours And Company | Element having images developed with dry nonelectroscopic toners |
US4960677A (en) * | 1987-08-14 | 1990-10-02 | E. I. Du Pont De Nemours And Company | Dry nonelectroscopic toners surface coated with organofunctional substituted fluorocarbon compounds |
JPS6491141A (en) * | 1987-10-02 | 1989-04-10 | Konishiroku Photo Ind | Electrostatic image developing toner |
JPH0277759A (en) * | 1988-09-13 | 1990-03-16 | Seiko Epson Corp | Manufacture of toner |
-
1993
- 1993-06-24 EP EP19930110126 patent/EP0594945B1/en not_active Expired - Lifetime
- 1993-06-24 DE DE1993622596 patent/DE69322596T2/en not_active Expired - Fee Related
- 1993-10-19 JP JP28426793A patent/JP3481280B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69322596T2 (en) | 1999-07-15 |
JP3481280B2 (en) | 2003-12-22 |
EP0594945A1 (en) | 1994-05-04 |
JPH06202372A (en) | 1994-07-22 |
DE69322596D1 (en) | 1999-01-28 |
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