GB1090268A - Improved liquid electrophotographic developer - Google Patents
Improved liquid electrophotographic developerInfo
- Publication number
- GB1090268A GB1090268A GB12106/65A GB1210665A GB1090268A GB 1090268 A GB1090268 A GB 1090268A GB 12106/65 A GB12106/65 A GB 12106/65A GB 1210665 A GB1210665 A GB 1210665A GB 1090268 A GB1090268 A GB 1090268A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- developer
- ionization
- image
- march
- 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
Links
- 239000007788 liquid Substances 0.000 title abstract 12
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 235000019441 ethanol Nutrition 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 abstract 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 abstract 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 abstract 1
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 abstract 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 1
- JYFHYPJRHGVZDY-UHFFFAOYSA-N Dibutyl phosphate Chemical compound CCCCOP(O)(=O)OCCCC JYFHYPJRHGVZDY-UHFFFAOYSA-N 0.000 abstract 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000005642 Oleic acid Substances 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 150000001299 aldehydes Chemical class 0.000 abstract 1
- 150000001336 alkenes Chemical class 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 abstract 1
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
- G03G9/12—Developers with toner particles in liquid developer mixtures
- G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
- G03G9/132—Developers with toner particles in liquid developer mixtures characterised by polymer components 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
- G03G9/12—Developers with toner particles in liquid developer mixtures
- G03G9/125—Developers with toner particles in liquid developer mixtures characterised by the liquid
-
- 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
- G03G9/12—Developers with toner particles in liquid developer mixtures
- G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
- G03G9/131—Developers with toner particles in liquid developer mixtures characterised by polymer components 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
- G03G9/12—Developers with toner particles in liquid developer mixtures
- G03G9/135—Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
- G03G9/1355—Ionic, organic compounds
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Liquid Developers In Electrophotography (AREA)
Abstract
1,090,268. Electro-photographic liquid developers. DEPARTMENT OF SUPPLY, COMMONWEALTH OF AUSTRALIA. March 22, 1965 [March 23, 1964], No.12106/65. Heading G2H. A method of controlling the relative polarity of liquid developers for electrostatic printing consists in forming a developer by suspending pigment particles in an insulating carrier liquid adding a liquid control material with a dielectric constant different to that of the carrier liquid but soluble therein, agitating the liquids, and then applying the developer to the latent electrostatic image to be developed whereby the relative attraction between particles and image causes deposition in conformity with the changed dielectric constant. The developer polarity may be changed sufficiently to give image reversal, by the formation of ions in the following ways: - (a) the formation of small amounts of oxygen dissolved in the liquid media which oxidize the liquid dielectric, suspended material, or the image surface. (b) the presence of catalyst metals such as copper or iron which produce ionizing organic compounds. (c) the presence of nitrogenous compounds, amino and amino derivatives which donate electrons or accept electrons. (d) the photo-mechanical excitation of small gas pockets in the media. Alcohols, aldehydes and esters supply ions during the passage of ozone through the liquid. An aromatic. hydrocarbon liquid is ionized by dissolving therein 20 moles per litre of myristic acid, or by adding naphthalene or tetralin, and then passing ozone. Ionization is inhibited to increase resistivity by adding olefins such as cyclohexane or octene. Minor ionization is caused by adding large amounts of lanoline, naphthenic acid, or oleic acid. Small amounts of ethyl alcohol or dibutylphosphate also cause ionization in hydrocarbon liquids. Various proprietary substances are mentioned in examples given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU42371/64A AU402875B2 (en) | 1964-03-23 | Improved liquid electrostatic developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1090268A true GB1090268A (en) | 1967-11-08 |
Family
ID=3729592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12106/65A Expired GB1090268A (en) | 1964-03-23 | 1965-03-22 | Improved liquid electrophotographic developer |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3507679A (en) |
| JP (1) | JPS5344825B1 (en) |
| BE (1) | BE661525A (en) |
| DE (1) | DE1497123A1 (en) |
| GB (1) | GB1090268A (en) |
| NL (1) | NL6503678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2289136A (en) * | 1994-05-04 | 1995-11-08 | Du Pont | System for replenishing liquid electrostatic developer |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3640751A (en) * | 1967-11-06 | 1972-02-08 | Ricoh Kk | Method for liquid-developing an electrostatic image |
| US3933487A (en) * | 1971-01-06 | 1976-01-20 | Xerox Corporation | Imaging composition for photoelectrophoretic imaging system |
| GB1411287A (en) * | 1972-07-12 | 1975-10-22 | Agfa Gevaert | Liquid electrophotographic developers |
| US4734352A (en) * | 1986-04-22 | 1988-03-29 | E. I. Du Pont De Nemours And Company | Polyhydroxy charging adjuvants for liquid electrostatic developers |
| US4814250A (en) * | 1987-03-17 | 1989-03-21 | Eastman Kodak Company | Electrophotographic toner and developer compositions containing dioctylsulfosuccinate and sodium benzoate charge control agents |
| US5792584A (en) * | 1992-08-21 | 1998-08-11 | Indigo N.V. | Preparation of liquid toners containing charge directors and components for stabilizing their electrical properties |
| US5308731A (en) * | 1993-01-25 | 1994-05-03 | Xerox Corporation | Liquid developer compositions with aluminum hydroxycarboxylic acids |
| IL106571A0 (en) * | 1993-08-02 | 1993-12-08 | Indigo Nv | Toner particles with modified chargeability |
| US9968208B2 (en) | 2015-07-21 | 2018-05-15 | Brian Roos Brennan | Display stand and consumer system which encourages a consumer to purchase a sustainable/eco-friendly product |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2809122A (en) * | 1954-06-24 | 1957-10-08 | Sherwin Williams Co | Dual purpose tinting base |
| US3010842A (en) * | 1955-08-29 | 1961-11-28 | Xerox Corp | Development of electrostatic images |
| NL95463C (en) * | 1955-12-29 | |||
| GB893549A (en) * | 1957-08-05 | 1962-04-11 | Commw Of Australia | Controlled tone development for electrophotography |
| US3001888A (en) * | 1957-09-25 | 1961-09-26 | Metcalfe Kenneth Archibald | Method of developing an electrostatic image |
| US3198649A (en) * | 1959-05-13 | 1965-08-03 | Commw Of Australia | Controlled and fixing liquid developer for electro-photography and electroradiography |
| US3105821A (en) * | 1960-02-04 | 1963-10-01 | Rca Corp | Electrostatic printing |
| NL262497A (en) * | 1960-03-17 | |||
| NL279524A (en) * | 1961-06-08 |
-
1965
- 1965-03-20 DE DE19651497123 patent/DE1497123A1/en active Pending
- 1965-03-22 GB GB12106/65A patent/GB1090268A/en not_active Expired
- 1965-03-23 BE BE661525A patent/BE661525A/xx unknown
- 1965-03-23 JP JP1688765A patent/JPS5344825B1/ja active Pending
- 1965-03-23 NL NL6503678A patent/NL6503678A/xx unknown
-
1969
- 1969-03-24 US US809678A patent/US3507679A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2289136A (en) * | 1994-05-04 | 1995-11-08 | Du Pont | System for replenishing liquid electrostatic developer |
| GB2289136B (en) * | 1994-05-04 | 1997-11-19 | Du Pont | System for replenishing liquid electrostatic developer |
Also Published As
| Publication number | Publication date |
|---|---|
| BE661525A (en) | 1965-07-16 |
| DE1497123A1 (en) | 1969-08-07 |
| US3507679A (en) | 1970-04-21 |
| JPS5344825B1 (en) | 1978-12-01 |
| NL6503678A (en) | 1965-09-24 |
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