GB1296999A - - Google Patents
Info
- Publication number
- GB1296999A GB1296999A GB1296999DA GB1296999A GB 1296999 A GB1296999 A GB 1296999A GB 1296999D A GB1296999D A GB 1296999DA GB 1296999 A GB1296999 A GB 1296999A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- deposit
- image
- development
- dec
- 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
- 239000002245 particle Substances 0.000 abstract 7
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- MMEDJBFVJUFIDD-UHFFFAOYSA-N 2-[2-(carboxymethyl)phenyl]acetic acid Chemical compound OC(=O)CC1=CC=CC=C1CC(O)=O MMEDJBFVJUFIDD-UHFFFAOYSA-N 0.000 abstract 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 1
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract 1
- 229920006243 acrylic copolymer Polymers 0.000 abstract 1
- 239000012461 cellulose resin Substances 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- -1 ethyl hydroxy Chemical group 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 abstract 1
- 239000011630 iodine Substances 0.000 abstract 1
- 229910052740 iodine Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 1
- 229910052726 zirconium 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
-
- 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
1296999 Electrostatographic developers AUSTRALIA DEPARTMENT OF SUPPLY SECRETARY OF 22 Dec 1969 [30 Dec 1968] 62457/69 Heading G2H An electrostatographic developer comprises a dispersion in an insulating carrier liquid 9 of insulating particles 2 which deposit on charged areas of an electrostatic latent image 11 and larger, more conductive particles 5 which acquire the polarity of the image charges and are repelled thereby unless insulated therefrom by previously deposited insulating particles 2. In operation, particles 2 start to deposit on the image and this enables particles 5 to deposit. Initially particles 5 deposit mainly on the areas of high charge gradient to produce edge development, which is required for X and y ray imaging. A uniformly developed image may be obtained if development is continued. The developer may be prepared by precipitating pigment-resin aggregates from solvent solutions thereof. Preferred resins are styrene but adiene copolymer, vinyl toluene acrylic copolymer; methyl methacrylate; melamine; and ethyl hydroxy cellulose resin. Development characteristics may be modified by adding particles of zirconium octoate, cobalt octoate, iodine or lead napthanote.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU48482/68A AU425595B2 (en) | 1968-12-30 | 1968-12-30 | Edge and latitude developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1296999A true GB1296999A (en) | 1972-11-22 |
Family
ID=3735186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1296999D Expired GB1296999A (en) | 1968-12-30 | 1969-12-22 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3766072A (en) |
| AU (1) | AU425595B2 (en) |
| BE (1) | BE743883A (en) |
| CA (1) | CA918985A (en) |
| DE (1) | DE1965362C3 (en) |
| FR (1) | FR2027343A1 (en) |
| GB (1) | GB1296999A (en) |
| NL (1) | NL6919431A (en) |
| SE (1) | SE359174B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414926B2 (en) * | 1972-03-11 | 1979-06-11 | ||
| JPS4934328A (en) * | 1972-07-27 | 1974-03-29 | ||
| US4049446A (en) * | 1972-10-04 | 1977-09-20 | Metcalfe Kenneth A | Energized liquid developers for developing electrostatic images |
| CA1000099A (en) * | 1972-10-04 | 1976-11-23 | Denton Field | Energised liquid developers for developing electrostatic images |
| JPS5413981B2 (en) * | 1973-11-05 | 1979-06-04 | ||
| DE2642826C3 (en) * | 1976-09-23 | 1982-03-11 | Philip A. Hunt Chemical Corp., Palisades Park, N.J. | Electrostatographic suspension developer |
| US4582774A (en) * | 1981-04-03 | 1986-04-15 | Savin Corporation | Liquid developing latent electrostatic images and gap transfer |
| US4413048A (en) * | 1981-09-01 | 1983-11-01 | Savin Corporation | Developing composition for a latent electrostatic image for transfer of the developed image across a gap to a carrier sheet |
| US4469770A (en) * | 1982-12-27 | 1984-09-04 | Xerox Corporation | Styrene butadiene plasticizer toner composition blends |
| JPS6259967A (en) * | 1985-09-10 | 1987-03-16 | Ricoh Co Ltd | Liquid developer for electrophotography |
| US4789616A (en) * | 1987-11-09 | 1988-12-06 | Xerox Corporation | Processes for liquid developer compositions with high transfer efficiencies |
| US4830945A (en) * | 1988-05-23 | 1989-05-16 | Xerox Corporation | Liquid electrophotographic developer comprising oppositely charged toner particles and dyes of different colors |
| US4877698A (en) * | 1988-05-23 | 1989-10-31 | Xerox Corporation | Electrophotographic process for generating two-color images using liquid developer |
| WO1997012288A1 (en) * | 1995-09-29 | 1997-04-03 | Minnesota Mining And Manufacturing Company | Method and apparatus for producing a multi-colored image in an electrophotographic system |
| WO2021022024A1 (en) * | 2019-08-01 | 2021-02-04 | University Of Massachusetts | Printable mixture, manufacture, and use |
-
1968
- 1968-12-30 AU AU48482/68A patent/AU425595B2/en not_active Expired
-
1969
- 1969-12-18 CA CA070236A patent/CA918985A/en not_active Expired
- 1969-12-22 SE SE17763/69A patent/SE359174B/xx unknown
- 1969-12-22 GB GB1296999D patent/GB1296999A/en not_active Expired
- 1969-12-24 NL NL6919431A patent/NL6919431A/xx unknown
- 1969-12-29 FR FR6945261A patent/FR2027343A1/fr not_active Withdrawn
- 1969-12-29 DE DE691965362A patent/DE1965362C3/en not_active Expired
- 1969-12-30 BE BE743883D patent/BE743883A/xx unknown
-
1971
- 1971-12-20 US US00209858A patent/US3766072A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL6919431A (en) | 1970-07-02 |
| CA918985A (en) | 1973-01-16 |
| AU4848268A (en) | 1971-06-17 |
| AU425595B2 (en) | 1972-06-29 |
| BE743883A (en) | 1970-05-28 |
| DE1965362C3 (en) | 1979-03-01 |
| FR2027343A1 (en) | 1970-09-25 |
| DE1965362A1 (en) | 1970-07-16 |
| DE1965362B2 (en) | 1978-06-22 |
| SE359174B (en) | 1973-08-20 |
| US3766072A (en) | 1973-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |