GB1095504A - - Google Patents
Info
- Publication number
- GB1095504A GB1095504A GB873665A GB873665A GB1095504A GB 1095504 A GB1095504 A GB 1095504A GB 873665 A GB873665 A GB 873665A GB 873665 A GB873665 A GB 873665A GB 1095504 A GB1095504 A GB 1095504A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge
- inducing agent
- development
- toner particles
- inhibited
- 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
- 239000003795 chemical substances by application Substances 0.000 abstract 9
- 230000001939 inductive effect Effects 0.000 abstract 6
- 239000002245 particle Substances 0.000 abstract 5
- 239000004519 grease Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 239000003963 antioxidant agent Substances 0.000 abstract 2
- 230000003078 antioxidant effect Effects 0.000 abstract 2
- 235000006708 antioxidants Nutrition 0.000 abstract 2
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 230000000717 retained effect Effects 0.000 abstract 2
- 239000011734 sodium Substances 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 abstract 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 abstract 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 1
- OPFTUNCRGUEPRZ-QLFBSQMISA-N Cyclohexane Natural products CC(=C)[C@@H]1CC[C@@](C)(C=C)[C@H](C(C)=C)C1 OPFTUNCRGUEPRZ-QLFBSQMISA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 239000005662 Paraffin oil Substances 0.000 abstract 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 abstract 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 235000021388 linseed oil Nutrition 0.000 abstract 1
- 239000000944 linseed oil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000002480 mineral oil Substances 0.000 abstract 1
- 235000010446 mineral oil Nutrition 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 abstract 1
- 239000005012 oleoresinous Substances 0.000 abstract 1
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical class CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 abstract 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- -1 sodium alkyl benzene Chemical class 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 229950011008 tetrachloroethylene Drugs 0.000 abstract 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 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
- G03G9/135—Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G13/00—Electrographic processes using a charge pattern
- G03G13/06—Developing
- G03G13/10—Developing using a liquid developer, e.g. liquid suspension
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Developers In Electrophotography (AREA)
Abstract
1,095,504. Electro-photographic development processes. RESEARCH LABORATORIES OF AUSTRALIA PTY. Ltd. March 1, 1965 [March 6, 1964], No.8736/65. Heading G2H. A charge image of negative polarity is reversal developed to provide stain-free areas, where most of the initial charge is retained, by contact with a developer consisting of a dispersion, in an insulating carrier liquid, of charge inhibited toner particles depositable only in the presence of a soluble mineral oil or grease as development inducing agent. The oil or grease contains specified quantities of anti-oxidant and detergent-dispersant. The developer is stated to give a clean cut-off where a predeterminable fraction of the initial charge is retained and a uniform deposition over all other less charged or uncharged areas. When used in preparing positive copies of printed matter from low-density negatives, in which the background (i.e. non-image areas) is not completely opaque, a stain-free background is thus obtained. Chargeable toner particles may be made charge inhibited by coating them with an oleoresinous polarity control agent which takes a charge of the opposite polarity and may be further coated so that they do not adsorb the development inducing agent. Alternatively, oppositely chargeable toner particles may be mixed to form charge inhibited aggregates which are treated with a dispersant which also prevents the particles from adsorbing the development inducing agent. According to one example, carbon black pigment is coated by milling with a hydrogenated rosin, as polarity control agent, and further coated with boiled linseed oil to prevent adsorption of the development inducing agent. This charge inhibited toner is then dispersed in one of the following carrier liquids: paraffinic, iso-paraffinic or aliphatic liquid, mineral spirit, cyclo-hexane, perchlorethylene, carbon tetrachloride or trichlorotrifluoroethane. The development inducing agent may be paraffin oil containing zinc alkyl dithiophosphate or a substituted para cresol as anti-oxidant and sodium alkyl benzene sulphonate or sodium naphtha sulphonate as detergentdispersant. In another example, phthalocyanine toner particles are coated with a pentaerithritol resin as polarity control agent and a wheel base grease containing additives is used as development inducing agent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU41777/64A AU292267B2 (en) | 1964-03-06 | Liquid developer with sharp cutoff response and method of use thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1095504A true GB1095504A (en) | 1967-12-20 |
Family
ID=3729103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB873665A Expired GB1095504A (en) | 1964-03-06 | 1965-03-01 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3362907A (en) |
| BE (1) | BE660711A (en) |
| DE (1) | DE1497197C3 (en) |
| FR (1) | FR1431978A (en) |
| GB (1) | GB1095504A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1151141A (en) * | 1966-02-04 | 1969-05-07 | Agfa Gevaert Nv | Improvements in or relating to the Dispersion of Particles in an Organic Liquid |
| CA942554A (en) * | 1969-07-01 | 1974-02-26 | Alan B. Amidon | Imaging systems |
| US3997456A (en) * | 1972-11-06 | 1976-12-14 | Bell & Howell Company | Wide latitude toner |
| US3993483A (en) * | 1974-01-22 | 1976-11-23 | Canon Kabushiki Kaisha | Liquid developer for electrostatic image |
| US4055419A (en) * | 1974-10-11 | 1977-10-25 | Bell & Howell Company | Method of developing electrostatic images using wide latitude toner |
| US4702985A (en) * | 1986-04-28 | 1987-10-27 | E. I. Du Pont De Nemours And Company | Aminoalcohols as adjuvant for liquid electrostatic developers |
| US4977056A (en) * | 1987-08-10 | 1990-12-11 | E. I. Du Pont De Nemours And Company | Alkylhydroxy benzylpolyamine as adjuvant for electrostatic liquid developers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734865A (en) * | 1956-02-14 | Stabilized lubricating compositions | ||
| GB893549A (en) * | 1957-08-05 | 1962-04-11 | Commw Of Australia | Controlled tone development for electrophotography |
| NL250444A (en) * | 1959-04-13 |
-
1965
- 1965-03-01 GB GB873665A patent/GB1095504A/en not_active Expired
- 1965-03-02 US US436552A patent/US3362907A/en not_active Expired - Lifetime
- 1965-03-05 DE DE1497197A patent/DE1497197C3/en not_active Expired
- 1965-03-05 BE BE660711A patent/BE660711A/xx unknown
- 1965-03-06 FR FR8235A patent/FR1431978A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1431978A (en) | 1966-03-18 |
| DE1497197C3 (en) | 1978-03-02 |
| BE660711A (en) | 1965-07-01 |
| US3362907A (en) | 1968-01-09 |
| DE1497197A1 (en) | 1969-05-08 |
| DE1497197B2 (en) | 1977-06-30 |
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