JPS55583A - Insulation type magnetic toner - Google Patents
Insulation type magnetic tonerInfo
- Publication number
- JPS55583A JPS55583A JP5314679A JP5314679A JPS55583A JP S55583 A JPS55583 A JP S55583A JP 5314679 A JP5314679 A JP 5314679A JP 5314679 A JP5314679 A JP 5314679A JP S55583 A JPS55583 A JP S55583A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- type magnetic
- charge control
- insulation type
- magnetic toner
- 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
- 238000009413 insulation Methods 0.000 title abstract 2
- 230000005291 magnetic effect Effects 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000003302 ferromagnetic material Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229920005992 thermoplastic resin Polymers 0.000 abstract 2
- 239000010941 cobalt Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000009477 glass transition Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To obtain the insulation type magnetic toner of not requiring any carrier capable of forming the transfer images of high densities having good continuous gradiations by grinding and granulating the thermoplastic resins, ferromagnetic materials, charge control agents, etc. having been blended at the specific ratios without using any solvent.
CONSTITUTION: Thermoplastic resin (A) such as vinyl-base resin of glass transition point about 20°C or higher and weight-average molecular weight about 1000 to 500,000, fine particulate ferromagnetic material (ferrite, iron, cobalt, etc.) (b) of mean particle size about 0.1 to 1μ (preferably 0.3 to 0.8μ), charge control agent (c) such as fettschwarz HBN (color index No. 26150), phthalocyanine blue, etc. are premixed within about 24 hours, after which the mixture is heated and kneaded for about 20 to 60 minutes at about 60 to 120°C by using an extruder. After this is cooled and hardened, it is ground, whereby the toner is obtained. The abovementioned blending ratios are made about 20 to 70pts.wt. of the composition b and about 0.1 to 10pts.wt. of the component c based on 100 pts.wt. of the toner.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5314679A JPS55583A (en) | 1979-04-28 | 1979-04-28 | Insulation type magnetic toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5314679A JPS55583A (en) | 1979-04-28 | 1979-04-28 | Insulation type magnetic toner |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11099573A Division JPS5330493B2 (en) | 1973-10-04 | 1973-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55583A true JPS55583A (en) | 1980-01-05 |
Family
ID=12934680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5314679A Pending JPS55583A (en) | 1979-04-28 | 1979-04-28 | Insulation type magnetic toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55583A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5813138A (en) * | 1981-07-18 | 1983-01-25 | Mazda Motor Corp | Engine air-fuel ratio control device |
| DE3237381A1 (en) * | 1981-12-24 | 1983-07-14 | Mitsubishi Paper Mills, Ltd., Tokyo | INK JET RECORDING SHEET |
| JPS60193725A (en) * | 1984-03-15 | 1985-10-02 | Nippon Denso Co Ltd | Constant speed travelling apparatus |
| JPS6276031U (en) * | 1985-10-31 | 1987-05-15 | ||
| US4758490A (en) * | 1984-11-13 | 1988-07-19 | Sharp Kabushiki Kaisha | Magnetic color toner for electrophotographic copying machine |
| JPS63199174A (en) * | 1987-02-12 | 1988-08-17 | 株式会社日立製作所 | Pendulum vehicle control method and device |
-
1979
- 1979-04-28 JP JP5314679A patent/JPS55583A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5813138A (en) * | 1981-07-18 | 1983-01-25 | Mazda Motor Corp | Engine air-fuel ratio control device |
| JPS6254989B2 (en) * | 1981-07-18 | 1987-11-17 | Matsuda Kk | |
| DE3237381A1 (en) * | 1981-12-24 | 1983-07-14 | Mitsubishi Paper Mills, Ltd., Tokyo | INK JET RECORDING SHEET |
| DE3237381C2 (en) * | 1981-12-24 | 1988-09-08 | Mitsubishi Paper Mills, Ltd., Tokio/Tokyo, Jp | |
| JPS60193725A (en) * | 1984-03-15 | 1985-10-02 | Nippon Denso Co Ltd | Constant speed travelling apparatus |
| JPH0533175B2 (en) * | 1984-03-15 | 1993-05-18 | Nippon Denso Co | |
| US4758490A (en) * | 1984-11-13 | 1988-07-19 | Sharp Kabushiki Kaisha | Magnetic color toner for electrophotographic copying machine |
| JPS6276031U (en) * | 1985-10-31 | 1987-05-15 | ||
| JPS63199174A (en) * | 1987-02-12 | 1988-08-17 | 株式会社日立製作所 | Pendulum vehicle control method and device |
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