JPS5745557A - Electric charge type magnetic toner - Google Patents
Electric charge type magnetic tonerInfo
- Publication number
- JPS5745557A JPS5745557A JP55120897A JP12089780A JPS5745557A JP S5745557 A JPS5745557 A JP S5745557A JP 55120897 A JP55120897 A JP 55120897A JP 12089780 A JP12089780 A JP 12089780A JP S5745557 A JPS5745557 A JP S5745557A
- Authority
- JP
- Japan
- Prior art keywords
- electric charge
- magnetic toner
- magnetic
- control agent
- charge control
- 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
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- 239000000975 dye Substances 0.000 abstract 2
- 239000006247 magnetic powder Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 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
- G03G9/09—Colouring agents for toner particles
- G03G9/0906—Organic dyes
-
- 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
- G03G9/09—Colouring agents for toner particles
- G03G9/0906—Organic dyes
- G03G9/0914—Acridine; Azine; Oxazine; Thiazine-;(Xanthene-) dyes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To obtain images which are superior in density, resolution, etc. and are free from ground photographic fogs by containing an electric charge control agent in magnetic toner particles in a magnetic toner consisting of magnetic powder and a binder resin. CONSTITUTION:A magnetic toner consisting of about 30-70wt% magnetic powder of about 0.1-5 microns grain sizes of magnetic metal such as magnetite, nickel, iron, etc., and about 70-30wt% a binder resin such as ethylene-vinyl acetate copolymer is mixed with 0.1-10wt% an electric charge control agent, whereby an intended electric charge type magnetic toner is obtained. Fine particles of about <=30mu of nigrosine type dyes (e.g., Nigrosine Base EX), metallized dyes (e.g.; Valifast Black 3804), etc. are preferable as the electric charge control agent. The resultant magnetic toner has superior effet in both developing and electrostatic transfer with respect to an electrostatic charge latent image system, and is effective in electrostatic transfer in a magnetic latent image system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55120897A JPS5745557A (en) | 1980-09-01 | 1980-09-01 | Electric charge type magnetic toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55120897A JPS5745557A (en) | 1980-09-01 | 1980-09-01 | Electric charge type magnetic toner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5745557A true JPS5745557A (en) | 1982-03-15 |
Family
ID=14797697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55120897A Pending JPS5745557A (en) | 1980-09-01 | 1980-09-01 | Electric charge type magnetic toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5745557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053305A (en) * | 1988-09-07 | 1991-10-01 | Tdk Corporation | Composition and method for developing electrostatic latent images |
-
1980
- 1980-09-01 JP JP55120897A patent/JPS5745557A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053305A (en) * | 1988-09-07 | 1991-10-01 | Tdk Corporation | Composition and method for developing electrostatic latent images |
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