JPS5444534A - Carrier material for electrostatic image developing - Google Patents
Carrier material for electrostatic image developingInfo
- Publication number
- JPS5444534A JPS5444534A JP11051877A JP11051877A JPS5444534A JP S5444534 A JPS5444534 A JP S5444534A JP 11051877 A JP11051877 A JP 11051877A JP 11051877 A JP11051877 A JP 11051877A JP S5444534 A JPS5444534 A JP S5444534A
- Authority
- JP
- Japan
- Prior art keywords
- image developing
- carrier material
- particles
- electrostatic image
- benzoic acid
- 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.)
- Granted
Links
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To suppress the accumulation of toner films on the surfaces of carrier particles for electrostatic latent image developing to provide desired friction charge characteristics to the carrier particles and improve durability by processing the material with a specific aromatic acid derivative.
CONSTITUTION: Particles such as of sand or goass of about 50 to 100μ (preferably 100 to 500μ) in mean particale size are treated with an aromatic acid derivative such as p-nitro benzoic acid or p-fluoro benzoic acid shown by general formula (R1 is intro, nitrile, halogen, acyl, H; R2 is hydroxyl group, akdoxy, alkyl, amino; n is 1 to 5; m is 1 to 2) to be covered with the abovementioned compound at about 0.1 to 0.5wt%, whereby the carrier material is provided.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11051877A JPS5444534A (en) | 1977-09-16 | 1977-09-16 | Carrier material for electrostatic image developing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11051877A JPS5444534A (en) | 1977-09-16 | 1977-09-16 | Carrier material for electrostatic image developing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5444534A true JPS5444534A (en) | 1979-04-09 |
JPS6156509B2 JPS6156509B2 (en) | 1986-12-02 |
Family
ID=14537817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11051877A Granted JPS5444534A (en) | 1977-09-16 | 1977-09-16 | Carrier material for electrostatic image developing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5444534A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58186752A (en) * | 1982-04-12 | 1983-10-31 | ゼロツクス・コ−ポレ−シヨン | Para-halo phenylcarbonic acid charge reinforcing additive |
US4599290A (en) * | 1985-01-02 | 1986-07-08 | Eastman Kodak Company | Negative charging carrier particles coated with a polymer having appended chlorendate groups |
-
1977
- 1977-09-16 JP JP11051877A patent/JPS5444534A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58186752A (en) * | 1982-04-12 | 1983-10-31 | ゼロツクス・コ−ポレ−シヨン | Para-halo phenylcarbonic acid charge reinforcing additive |
JPH0360429B2 (en) * | 1982-04-12 | 1991-09-13 | Xerox Corp | |
US4599290A (en) * | 1985-01-02 | 1986-07-08 | Eastman Kodak Company | Negative charging carrier particles coated with a polymer having appended chlorendate groups |
Also Published As
Publication number | Publication date |
---|---|
JPS6156509B2 (en) | 1986-12-02 |
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