GB1450006A - Method of manufacturing an electrophotographic toner - Google Patents
Method of manufacturing an electrophotographic tonerInfo
- Publication number
- GB1450006A GB1450006A GB643775A GB643775A GB1450006A GB 1450006 A GB1450006 A GB 1450006A GB 643775 A GB643775 A GB 643775A GB 643775 A GB643775 A GB 643775A GB 1450006 A GB1450006 A GB 1450006A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- toner
- added
- toner particles
- droplets
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000002245 particle Substances 0.000 abstract 10
- 239000007788 liquid Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 229920005989 resin Polymers 0.000 abstract 3
- 239000011347 resin Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- 238000007711 solidification Methods 0.000 abstract 2
- 230000008023 solidification Effects 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 239000004952 Polyamide Substances 0.000 abstract 1
- YCUVUDODLRLVIC-UHFFFAOYSA-N Sudan black B Chemical compound C1=CC(=C23)NC(C)(C)NC2=CC=CC3=C1N=NC(C1=CC=CC=C11)=CC=C1N=NC1=CC=CC=C1 YCUVUDODLRLVIC-UHFFFAOYSA-N 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000012170 montan wax Substances 0.000 abstract 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920002689 polyvinyl acetate Polymers 0.000 abstract 1
- 239000011118 polyvinyl acetate Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229920002545 silicone oil Polymers 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 239000000454 talc Substances 0.000 abstract 1
- 229910052623 talc Inorganic materials 0.000 abstract 1
- 150000003505 terpenes Chemical class 0.000 abstract 1
- 235000007586 terpenes Nutrition 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
- G03G9/087—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
- G03G9/08766—Polyamides, e.g. polyesteramides
-
- 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
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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
1450006 Toner particle manufacture WIFO WISSENSCHAFTLICHES FORSCHUNGSINSTITUT AG 14 Feb 1975 [26 Feb 1974] 6437/75 Heading G2H Electrographic toner particles are made by dispersing as liquid droplets a solution of a toner material in a liquid which is immiscible with the toner solvent and does not dissolve the toner material, causing the droplets to solidify as globular particles by removing solvent from the droplets and separating the solidified toner particles from the said liquid. In the examples, hot solutions of resins plus Sudan black in organic solvents are dispersed in hot water with and without added surfactants, in some examples diluted with water, cooled, the organic solvent evaporated and the particles filtered off and dried. The toner particles are mixed with iron carrier particles. Resins exemplified are polyamides and mixtures comprising polyvinylbutyral, polyvinyl acetate, a terpene resin, an esterified Montan wax with and without polydimethylsiloxine. Surface modifying materials, such as finely divided silica, bentonite or talc, may be added to the dispersion after solidification of the toner particles or may be added to the toner particles after redispersion in water. Silicone oils may be added before or after solidification of the particles.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH269974 | 1974-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1450006A true GB1450006A (en) | 1976-09-22 |
Family
ID=4239597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB643775A Expired GB1450006A (en) | 1974-02-26 | 1975-02-14 | Method of manufacturing an electrophotographic toner |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS50120632A (en) |
| DE (1) | DE2508095A1 (en) |
| FR (1) | FR2262335B1 (en) |
| GB (1) | GB1450006A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121203B (en) * | 1982-04-06 | 1985-10-16 | Canon Kk | Making toner particles |
| US4869992A (en) * | 1988-06-28 | 1989-09-26 | Eastman Kodak Company | Mixed polymer toner for forming electrographic printing plates |
| US4865937A (en) * | 1988-09-26 | 1989-09-12 | Eastman Kodak Company | Method of making fluorescent toner |
| SG44019A1 (en) * | 1992-09-03 | 1997-11-14 | Indigo Nv | Method for manufacturing spherical particles |
| JPH1144969A (en) * | 1997-07-28 | 1999-02-16 | Fuji Xerox Co Ltd | Electrophotographic toner and manufacture thereof, and method for forming image with use of the same toner |
| JP3861493B2 (en) | 1999-01-18 | 2006-12-20 | 富士ゼロックス株式会社 | Solvent removal apparatus, solvent removal system, solvent removal method, and method for producing toner for developing electrostatic image |
-
1975
- 1975-02-14 GB GB643775A patent/GB1450006A/en not_active Expired
- 1975-02-25 DE DE19752508095 patent/DE2508095A1/en active Pending
- 1975-02-25 FR FR7505772A patent/FR2262335B1/fr not_active Expired
- 1975-02-26 JP JP50022959A patent/JPS50120632A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50120632A (en) | 1975-09-22 |
| FR2262335A1 (en) | 1975-09-19 |
| FR2262335B1 (en) | 1978-10-06 |
| DE2508095A1 (en) | 1975-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |