JPS56163169A - Purifying method for magnetic ink - Google Patents
Purifying method for magnetic inkInfo
- Publication number
- JPS56163169A JPS56163169A JP6764880A JP6764880A JPS56163169A JP S56163169 A JPS56163169 A JP S56163169A JP 6764880 A JP6764880 A JP 6764880A JP 6764880 A JP6764880 A JP 6764880A JP S56163169 A JPS56163169 A JP S56163169A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic ink
- ink
- plate
- magnet
- 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
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
PURPOSE: To remove magnetic fine powder dispersed unstably to purify easily magnetic ink, by applying a concentrated magnetic field to magnetic ink having fine magnetic particles dispersed in a colloidal state by a surface active agengt in a dispersing medium.
CONSTITUTION: Fine magnetic particles are dispersed in a colloidal state by a surface active agent in a dispersing medium to prepare magnetic ink 3. When the magnetic ink 3 is adsorbed onto a permanent magnet 1 by way of a magnetic plate 2, precipitate 4 occurs on the edge part of magnet 1 after it is left to stand for a long time. When the magnet is removed from magnetic plate 2 and the plate is inclined, magnetic ink 3 flows down and only the precipitate 4 remains, thus the magnetic ink being purified.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55067648A JPS6017433B2 (en) | 1980-05-20 | 1980-05-20 | How to purify magnetic ink |
US06/264,562 US4405370A (en) | 1980-05-20 | 1981-05-18 | Magnetic ink refining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55067648A JPS6017433B2 (en) | 1980-05-20 | 1980-05-20 | How to purify magnetic ink |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56163169A true JPS56163169A (en) | 1981-12-15 |
JPS6017433B2 JPS6017433B2 (en) | 1985-05-02 |
Family
ID=13351044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55067648A Expired JPS6017433B2 (en) | 1980-05-20 | 1980-05-20 | How to purify magnetic ink |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6017433B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58145623A (en) * | 1982-02-22 | 1983-08-30 | Taihoo Kogyo Kk | Purification of magnetic fluid |
-
1980
- 1980-05-20 JP JP55067648A patent/JPS6017433B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58145623A (en) * | 1982-02-22 | 1983-08-30 | Taihoo Kogyo Kk | Purification of magnetic fluid |
JPH037122B2 (en) * | 1982-02-22 | 1991-01-31 | Taiho Kogyo Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6017433B2 (en) | 1985-05-02 |
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