JPS5596960A - Magnetic toner - Google Patents
Magnetic tonerInfo
- Publication number
- JPS5596960A JPS5596960A JP366579A JP366579A JPS5596960A JP S5596960 A JPS5596960 A JP S5596960A JP 366579 A JP366579 A JP 366579A JP 366579 A JP366579 A JP 366579A JP S5596960 A JPS5596960 A JP S5596960A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- magnetic
- conductive particles
- mixed
- electric resistivity
- 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
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To enhance developability and transferability, by composing a magnetic toner mainly of a magnetic powder and a resin, firmly attaching conductive particles to the toner particle surfaces, and raising the change rate of electric resistivity against applied voltage remarkably.
CONSTITUTION: A substance extremely magnetizable in a magnetic field in the magnetic force direction, such as ferrite or magnetic is used and this magnetic powder is mixed with a resin, such as epoxy resin, styrene resin, or rosin type resin in the range of 30W60wt% resin, when needed, mixed with a resistivity controller or the like, and molten and kneaded in a kneader or the like, thus the solid obtained after cooling is pulverized. Conductive particles such as carbon black is added to the pulverized particles, uniformly mixed and heat treated, to firmly attach the conductive particles to the toner particle surfaces, permitting formation of a magnetic toner having electric resistivity of 1×108Ω.cm or more near 5kV/cm and mean change rate of its electric resistivity of 2.5×108Ω.cmV-1 in absolute value or more.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP366579A JPS5596960A (en) | 1979-01-17 | 1979-01-17 | Magnetic toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP366579A JPS5596960A (en) | 1979-01-17 | 1979-01-17 | Magnetic toner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5596960A true JPS5596960A (en) | 1980-07-23 |
Family
ID=11563727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP366579A Pending JPS5596960A (en) | 1979-01-17 | 1979-01-17 | Magnetic toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596960A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0426862A (en) * | 1990-05-23 | 1992-01-30 | Tomoegawa Paper Co Ltd | Production of magnetic toner |
CN114836165A (en) * | 2022-05-11 | 2022-08-02 | 湖北兴龙包装材料有限责任公司 | UV transfer printing adhesive and preparation method thereof |
-
1979
- 1979-01-17 JP JP366579A patent/JPS5596960A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0426862A (en) * | 1990-05-23 | 1992-01-30 | Tomoegawa Paper Co Ltd | Production of magnetic toner |
CN114836165A (en) * | 2022-05-11 | 2022-08-02 | 湖北兴龙包装材料有限责任公司 | UV transfer printing adhesive and preparation method thereof |
CN114836165B (en) * | 2022-05-11 | 2023-10-20 | 湖北兴龙包装材料有限责任公司 | UV transfer printing adhesive and preparation method thereof |
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