JPS5779951A - Developer - Google Patents
DeveloperInfo
- Publication number
- JPS5779951A JPS5779951A JP55156320A JP15632080A JPS5779951A JP S5779951 A JPS5779951 A JP S5779951A JP 55156320 A JP55156320 A JP 55156320A JP 15632080 A JP15632080 A JP 15632080A JP S5779951 A JPS5779951 A JP S5779951A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- silicate
- fine powder
- coated
- way
- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 abstract 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- -1 aluminum silicate Chemical compound 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000007786 electrostatic charging Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 230000004304 visual acuity Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-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
- G03G9/097—Plasticisers; Charge controlling agents
- G03G9/09708—Inorganic compounds
- G03G9/09725—Silicon-oxides; Silicates
-
- 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
- G03G9/09708—Inorganic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To obtain a toner which is stable and uniform in quantity of electrostatic charging by friction, is free from photographic fogs, toner scattering and cohesion and does not receive the influence of temp. and humidity by adding fine powder of silicate coated with alumina on surfaces to a developer (toner). CONSTITUTION:Coated fine powder of silicate is prepd. by methods of adding a suitable amt. of soluble Al salt such as AlCl3 in a water dispersion of fine powder of SiO2 or silicate such as aluminum silicate, controlling the same to 6.0-9.0pH by means of NH4OH, and maturing the same at above 50 deg.C followed by filtering, washing and drying. The resultant fine powder of silicate is kneaded together with toner raw materials in such a way that it is contained at 0.01- 20wt% based on the total weight of the toner, whereby the toner is obtained or the toner is immersed in the dispersion of the coated fine powder of silicate, after which the solvent is evaporated, whereby the toner stuck with said powder on the toner surfaces is obtained. In this way, the toner providing the images of high image density and good resolving power free from photographic fogs is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55156320A JPS5779951A (en) | 1980-11-06 | 1980-11-06 | Developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55156320A JPS5779951A (en) | 1980-11-06 | 1980-11-06 | Developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5779951A true JPS5779951A (en) | 1982-05-19 |
Family
ID=15625214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55156320A Pending JPS5779951A (en) | 1980-11-06 | 1980-11-06 | Developer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5779951A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4902598A (en) * | 1988-07-01 | 1990-02-20 | Xerox Corporation | Process for the preparation of silica containing charge enhancing additives |
| US5322733A (en) * | 1990-09-07 | 1994-06-21 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
| JP2014157188A (en) * | 2013-02-14 | 2014-08-28 | Fuji Xerox Co Ltd | Brilliant toner and manufacturing method of the same, developer, toner cartridge, process cartridge, and image forming apparatus |
| JP2017116570A (en) * | 2015-12-21 | 2017-06-29 | キヤノン株式会社 | Toner and toner production method |
-
1980
- 1980-11-06 JP JP55156320A patent/JPS5779951A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4902598A (en) * | 1988-07-01 | 1990-02-20 | Xerox Corporation | Process for the preparation of silica containing charge enhancing additives |
| US5322733A (en) * | 1990-09-07 | 1994-06-21 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
| JP2014157188A (en) * | 2013-02-14 | 2014-08-28 | Fuji Xerox Co Ltd | Brilliant toner and manufacturing method of the same, developer, toner cartridge, process cartridge, and image forming apparatus |
| JP2017116570A (en) * | 2015-12-21 | 2017-06-29 | キヤノン株式会社 | Toner and toner production method |
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